JPWO2006082875A1 - Water purification system and water purification method - Google Patents

Water purification system and water purification method Download PDF

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JPWO2006082875A1
JPWO2006082875A1 JP2007501607A JP2007501607A JPWO2006082875A1 JP WO2006082875 A1 JPWO2006082875 A1 JP WO2006082875A1 JP 2007501607 A JP2007501607 A JP 2007501607A JP 2007501607 A JP2007501607 A JP 2007501607A JP WO2006082875 A1 JPWO2006082875 A1 JP WO2006082875A1
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water
mixing
purification system
water purification
stirring
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JP4997389B2 (en
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強一 岡本
強一 岡本
健治 掘田
健治 掘田
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Nihon University
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/08—Settling tanks with single outlets for the separated liquid provided with flocculating compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2333—Single stirrer-drive aerating units, e.g. with the stirrer-head pivoting around an horizontal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00—Aeration of stretches of water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/503—Floating mixing devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/02—Odour removal or prevention of malodour
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Removal Of Specific Substances (AREA)
  • Treatment Of Sludge (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

本願発明は、構成が簡単で、数人で持ち運ぶことができるような携帯性に優れ、即効的に湖沼の水質浄化をおこなうことのできる水質浄化システム及び水質浄化方法を提供することを目的とする。
閉水域に水面と水底間に定循環流域を生ぜしめる循環装置と、所定の凝集分離剤を所定の割合で水と混合攪拌して混合液を生産する混合攪拌装置とからなる構成とし、前記混合液は前記定循環流域中に投入されて前記定循環流域中における凝集分離剤の濃度を所定の濃度とすることにより、浮遊懸濁物質から凝固汚泥を生成させ、水中に浮遊する前記凝固汚泥を回収し、所定の固化剤を混入して固化させて廃棄処分する。
An object of the present invention is to provide a water purification system and a water purification method that are simple in structure, have excellent portability that can be carried by several people, and can immediately perform water purification of lakes and marshes. .
A circulation device that creates a constant circulation basin between the water surface and the bottom of the water in the closed water region, and a mixing and stirring device that mixes and stirs a predetermined coagulant separation agent with water at a predetermined ratio to produce a mixed liquid, The liquid is introduced into the constant circulation basin and the concentration of the coagulation separating agent in the constant circulation basin is set to a predetermined concentration to generate coagulated sludge from the suspended suspended substance, and the coagulated sludge floating in water is It is collected, mixed with a prescribed solidifying agent, solidified, and discarded.

Description

本願発明は、水の循環がおこなわれ難い湖、沼や池などの閉水域における水質の浄化システム及び水質浄化方法に関する。   The present invention relates to a water quality purification system and a water quality purification method in a closed water area such as a lake, a swamp or a pond where water circulation is difficult.

貯留容積に比べて流入水量あるいは流出水量の少ない湖、沼や池などの閉水域は、湖水、沼水や池水（以下「湖水等」という。）の循環がおこなわれ難く、湖水等が澱む傾向にある。その上、都市生活空間に近い湖、沼や池などの閉水域では、生活廃水が流れ込んで湖水等を汚染し、また、都市生活空間から程遠い湖、沼や池などの閉水域であってもキャンプ場などから生活廃水が流れ込んで湖水等を汚染する。   Closed areas such as lakes, swamps and ponds that have less inflow or outflow than the storage volume are less likely to circulate lake water, swamp water or pond water (hereinafter referred to as "lake water"), and the lake water tends to settle. It is in. In addition, in the closed areas such as lakes, swamps and ponds close to the urban living space, domestic wastewater flows in to contaminate the lake water, and even in closed areas such as lakes, swamps and ponds far from the urban living space. Domestic wastewater flows from campsites and pollutes lake water.

そして、上述のような湖、沼や池などでは、汚染された湖水等を自然浄化する自浄能力を超える場合が生じ、汚染物質が蓄積されて、水の汚濁を表す指標であるＢＯＤ（生物化学的酸素要求量）、COD（化学的酸素要求量）およびＳＳ（懸濁物質濃度）、プランクトンと関係するクロロフィルａ濃度、富栄養価を示すＴＮ（全窒素）やＴＰ（全リン）などの量が増加して、水道の水源として不適になったり、レクリエーションの場としての水辺の環境の悪化につながることになる。そのため、全国各地の湖、沼や池などで水質浄化が試みられるようになり、湖水等の水質浄化に関する技術もかなり多く提案されている。   In the above-mentioned lakes, swamps, ponds, etc., the self-cleaning ability to naturally purify polluted lake water may be exceeded, pollutants are accumulated, and BOD (biochemical Oxygen demand), COD (chemical oxygen demand) and SS (suspended substance concentration), chlorophyll-a concentration related to plankton, TN (total nitrogen) and TP (total phosphorus) indicating rich nutrients Will result in an unsuitable source of water for the water supply and a deterioration of the waterfront environment for recreation. Therefore, water purification has come to be attempted in lakes, swamps, ponds, etc. all over the country, and quite a lot of technologies relating to water purification of lake water have been proposed.

たとえば、特開２００１−２２４９０７号公報に開示の技術は、設備費、運転費が安価で、湖沼・河川の水質浄化を安定した高い効率でおこなうことが可能な、コンパクト化を図った高度処理対応型の凝集沈殿・急速ろ過装置を提供することを目的としたものである。そして、その目的を達成するため、従来の凝集槽と沈殿槽を合体させ、凝集室の側方を沈殿室、下方を貯留室として区画し、凝集室の側面下方に沈殿室と連通するスロット部、凝集室の底面に貯留室と連通する連通口を有する仕切り板、及び沈殿室の方向に突き出した整流板を設け、沈殿室の上方には、該沈殿室の上澄み水を上向き流でろ過する砂ろ過室、膜ろ過室、生物ろ過室、活性炭吸着ろ過室のいずれかを設けたことを特徴としたものである。   For example, the technology disclosed in Japanese Unexamined Patent Publication No. 2001-224907 has a low equipment cost and an operating cost, and is capable of performing stable water purification of lakes and rivers with high efficiency. The purpose of the present invention is to provide a mold-type coagulating sedimentation/rapid filtration device. Then, in order to achieve the purpose, a conventional coagulation tank and a precipitation tank are combined, a side of the coagulation chamber is divided into a precipitation chamber and a lower part is defined as a storage chamber, and a slot portion communicating with the precipitation chamber is provided below a side surface of the coagulation chamber. A partition plate having a communication port communicating with the storage chamber on the bottom surface of the coagulation chamber and a rectifying plate protruding in the direction of the precipitation chamber, and above the precipitation chamber, the supernatant water of the precipitation chamber is filtered in an upward flow. It is characterized in that any one of a sand filtration chamber, a membrane filtration chamber, a biological filtration chamber, and an activated carbon adsorption filtration chamber is provided.

また、特開２００４−２９８８１７号公報に開示の技術は、湖水等に対して大気圧中の飽和溶存酸素濃度以上の酸素を溶存させて、水中に異常発生した植物性プランクトンを食用とする動物性プランクトンを活性化して増殖させることにより、水質の浄化を目的としたものである。図８は当該技術の模式図であり、この図８を基に特開２００４−２９８８１７号公報に開示の技術を概説する。   In addition, the technique disclosed in Japanese Patent Laid-Open No. 2004-298817 is an animal animal in which phytoplankton abnormally generated in water is edible by dissolving oxygen in a lake water or the like at a saturated dissolved oxygen concentration at atmospheric pressure or higher. The purpose is to purify water by activating plankton and allowing it to grow. FIG. 8 is a schematic diagram of the technique, and the technique disclosed in Japanese Patent Laid-Open No. 2004-298817 will be outlined based on FIG.

この水質浄化装置１００は、水上に設置された設置架台１０１と、設置架台１０１上に設置される気液混合装置１０２および圧力タンク１０３と、水中にあって気液混合装置１０２に連設される水中ポンプ１０４と、陸上にあって気液混合装置１０２に連設されるエアコンプレッサー１０５と、一端が圧力タンク１０３に連設し他端が水中に開放されている排出管１０６と、から構成されている。このような構成により、この水質浄化装置１００は、水中ポンプ１０４により気液混合装置１０２内に吐出された水に、エアコンプレッサー１０５から送出される空気が気液混合装置１０２に介設された図示外の気泡発生多孔質ストーンを介して気液混合装置１０２内で混合され、圧力タンク１０３で加圧して排出管１０６の先端から排出し、その結果、大気圧中の飽和溶存酸素濃度以上の酸素を溶存させる、という目的を達成せしめるものである。   This water purification device 100 is installed on water, an installation base 101, a gas-liquid mixing device 102 and a pressure tank 103 installed on the installation base 101, and is submerged in water and is connected to the gas-liquid mixing device 102. It is composed of a submersible pump 104, an air compressor 105 which is connected to the gas-liquid mixing device 102 on land, and a discharge pipe 106 which is connected to the pressure tank 103 at one end and opened to the water at the other end. ing. With this configuration, in the water purification device 100, the water discharged into the gas-liquid mixing device 102 by the submersible pump 104 and the air sent from the air compressor 105 are provided in the gas-liquid mixing device 102. The gas is mixed in the gas-liquid mixing device 102 through the bubble generating porous stone outside, pressurized by the pressure tank 103, and discharged from the tip of the discharge pipe 106. As a result, oxygen having a saturated dissolved oxygen concentration of atmospheric pressure or higher is obtained. To achieve the purpose of dissolving.

そして、特許第３３６００７５号公報に開示の技術は、わずかなエネルギーで水面に広がる流れを起こし、多量の水を水底から水面に導き、水面を這うように流れる循環流を起こして、湖沼の自浄作用により水質浄化を図ることを目的としたものである。図９は当該技術の実施例に係る浮遊型省エネ浄水機の断面図であり、この図９を基に特許第３３６００７５号公報に開示の技術を概説する。   The technology disclosed in Japanese Patent No. 3360075 causes a flow that spreads to the surface of the water with a small amount of energy, guides a large amount of water from the bottom to the surface of the water, and causes a circulating flow that crawls along the surface of the water, thereby self-cleaning the lake. The purpose is to purify water. FIG. 9 is a cross-sectional view of a floating energy-saving water purifier according to an example of the technique, and the technique disclosed in Japanese Patent No. 3360075 will be outlined based on FIG. 9.

浮遊型省エネ浄水機２００はモーター２０１と、フロート２０２と、フロート付き起流羽根２０３と、から構成されていて、水面１１に垂直に立てた回転軸２０４から水平方向に放射状に広げたフロート付き起流羽根２０３をフロート２０２により水面１１に浮かべて回し、水面の水を跳ね上げることなく、フロート付き起流羽根２０３の回転の中心から放射状に流れる川を水面１１上に起こして水を浄化するものである。
特開２００１−２２４９０７号公報 特開２００４−２９８８１７号公報 特許第３３６００７５号公報 The floating energy-saving water purifier 200 is composed of a motor 201, a float 202, and a starter vane 203 with a float, and a floater with a float that is spread radially in a horizontal direction from a rotating shaft 204 that stands vertically on the water surface 11. Floating blades 203 are floated on the water surface 11 by the floats 202, and water is purified on the water surface 11 by causing a river to flow radially from the center of rotation of the floating blades 203 to rotate the water on the water surface 11 without splashing the water on the water surface. Is.
JP, 2001-224907, A JP, 2004-298817, A Patent No. 3360075

しかしながら、特開２００１−２２４９０７号公報に開示の技術は、コンパクト化を図ったとはいっても、数人で持ち運ぶことができるほどではなく、装置も比較的大掛かりなものである。また、特開２００４−２９８８１７号公報に開示の技術や特許第３３６００７５号公報に開示の技術は、湖沼の自浄作用に期待した技術であって、自浄作用を補助する効果はあっても即効性にかける。   However, although the technique disclosed in Japanese Patent Laid-Open No. 2001-224907 is designed to be compact, it cannot be carried by a few people, and the device is relatively large. Further, the technology disclosed in Japanese Patent Laid-Open No. 2004-298817 and the technology disclosed in Japanese Patent No. 3360075 are technologies that are expected for the self-cleaning action of lakes and mars, and even if they have the effect of assisting the self-cleaning action, they are immediately effective. Call.

そこで、本願発明は、構成が簡単で、数人で持ち運ぶことができる携帯性に優れ、即効的に湖沼の水質浄化を極めて効率的に果たすことのできる水質浄化システム及び水質浄化方法を提供することを目的とする。   Therefore, the present invention provides a water purification system and a water purification method that have a simple structure, are excellent in portability that can be carried by several people, and can immediately and very efficiently purify water in lakes. With the goal.

上記課題を解決するために、本願請求項１に係る水質浄化システムは、閉水域の水質を浄化する水質浄化システムであって、閉水域の水質を浄化する水質浄化システムであって、前記水質浄化システムは、前記閉水域に浮遊して前記閉水域内に水底と水面間を循環する定循環流域を生ぜしめる循環装置と、前記閉水域の水中浮遊懸濁物質を凝集分離すると同時に溶存汚濁物質を収着・固定・分離する所定の凝集分離剤を前記閉水域の水とを混合攪拌して前記閉水域に投入する混合攪拌装置とからなることを特徴とするものである。
また、本願請求項２に係る水質浄化システムは、本願請求項１に記載の水質浄化システムであって、前記循環装置は前記閉水域の所望の水面上にあって、該循環装置の下方の水を吸引するポンプ及び／又は吸込み部と、吸引した水を水平方向に吐出する吐出部とからなり、前記混合攪拌装置は、混合用の水を吸入する混合水吸入部、前記混合用の水と前記凝集分離剤とを攪拌して混合液を生産する攪拌部、及び前記混合液を排出する混合液排出部とがこの順に水平方向に連設され、前記攪拌部の上部には水面上に開放されて前記凝集分離剤が投入される凝集分離剤投入口とから構成される装置本体と、前記閉水域の水中に吊設される水中ポンプと、及び前記装置本体と前記水中ポンプとを連結する送水管と、から構成され、前記凝集分離剤は鉱物性微量元素を含み酸性領域においては陽イオン、アルカリ領域においては陰イオンとの間で両性のイオン交換能を有する天然鉱物の複合アルミナ・けい酸塩を主成分とすることを特徴とするものである。
そして、本願請求項３に係る水質浄化システムは、請求項１または請求項２に記載の水質浄化システムであって、前記混合攪拌の前記装置本体は両端が開放された横倒パイプ形状を呈し、前記混合水吸入部の開放端の上部には、前記送水管の他端が連結される送水排出口が固着されていて、前記送水排出口から排出される前記混合用の水は前記混合液排出部の開放端に向けて吐出され、前記攪拌部には、前記送水排出口に対応する位置に前記混合用の水の吐出方向に直交するスリットが穿設された仕切り板が固着され、前記仕切り板の前記混合液排出部側には前記混合用の水の吐出方向に直交する第１の水流撹乱棒および第２の水流撹乱棒が所定の間隔をもって相互に直交するように固着されて前記攪拌部が形成され、前記仕切り板と前記第１の水流撹乱棒との間の上部には、その先端が水面上に開放されるパイプ状の前記凝集分離剤投入口が形成されている、ことを特徴とするものである。
さらに、本願請求項４に係る水質浄化方法は、請求項１ないし請求項３のいずれかに記載の水質浄化システムにおいて、前記循環装置を所定時間前記閉水域内で稼働させて、前記閉水域内に前記凝集分離剤を攪拌混合して、前記閉水域中の懸濁物質に対し、５０〜３００ｍｇ／リットルの範囲内で投入することを特徴とするものである。
さらに、本願請求項５に係る水質浄化方法およびその浄化方法を利用する水質浄化システムは、請求項４に係る水質浄化方法または請求項１ないし３のいずれかに係る水質浄化システムであって、前記凝集分離剤を攪拌混合して生成された水中に浮遊する凝固汚泥は回収され、回収された前記凝固汚泥に固化剤が添加・攪拌され、前記固化剤は前記凝固汚泥中の水分を吸収する多孔質のアッシュを有し、吸水後の前記アッシュは前記固化剤成分の水和化鉱物の水和反応により、速やかにエトリンガイドが生成されて前記凝固汚泥が固化され、固化後の前記凝固汚泥は廃棄処分されることを特徴とするものである。In order to solve the above problems, a water purification system according to claim 1 of the present application is a water purification system for purifying water quality in a closed water region, and is a water purification system for purifying water quality in a closed water region. The system is a circulation device that floats in the closed water area and creates a constant circulation basin that circulates between the water bottom and the water surface in the closed water area, and aggregates and separates suspended suspended solids in the closed water area while simultaneously dissolving dissolved pollutants. It is characterized by comprising a mixing and stirring device which mixes and stirs a predetermined coagulating/separating agent for sorption/fixation/separation with water in the closed water area and inputs the mixture into the closed water area.
The water purification system according to claim 2 of the present application is the water purification system according to claim 1, wherein the circulation device is on a desired water surface in the closed water region, and water below the circulation device is present. The mixing and stirring device is composed of a pump and/or a suction part for sucking water, and a discharge part for discharging the sucked water in a horizontal direction. A stirrer that stirs the flocculant-separating agent to produce a mixed liquid and a mixed liquid discharger that discharges the mixed liquid are horizontally connected in this order, and the upper part of the stirrer is open above the water surface. And a submersible pump suspended in the water in the closed water region, and an apparatus main body composed of a coagulation/separation agent inlet into which the coagulation/separation agent is charged, and the apparatus main body and the submersible pump are connected. A water supply pipe, wherein the coagulation/separation agent is a natural mineral composite alumina/silica containing mineral trace elements and having amphoteric ion exchange capacity between cations in the acidic region and anions in the alkaline region. It is characterized by having an acid salt as a main component.
The water purification system according to claim 3 of the present application is the water purification system according to claim 1 or 2, wherein the apparatus main body of the mixing and stirring has a laterally inverted pipe shape with both ends open. A water discharge outlet connected to the other end of the water supply pipe is fixed to an upper portion of the open end of the mixed water suction portion, and the mixing water discharged from the water discharge outlet is discharged from the mixed liquid. A discharge plate is discharged toward the open end of the mixing section, and a partition plate having a slit perpendicular to the discharge direction of the water for mixing is fixed to the stirring section at a position corresponding to the water supply/discharge port. A first water flow disturbing rod and a second water flow disturbing rod, which are orthogonal to the discharge direction of the water for mixing, are fixed to the plate on the side of the mixed liquid discharge portion so as to be orthogonal to each other at a predetermined interval, and the stirring is performed. Part is formed, and the pipe-shaped coagulation/separation agent inlet whose tip is open above the water surface is formed in the upper part between the partition plate and the first water flow disturbing rod. It is a feature.
Further, in the water purification method according to claim 4 of the present application, in the water purification system according to any one of claims 1 to 3, the circulation device is operated in the closed water region for a predetermined time to remove the water in the closed water region. The aggregating and separating agent is agitated and mixed with, and is added within a range of 50 to 300 mg/liter with respect to the suspended substance in the closed water area.
Further, a water purification method according to claim 5 of the present application and a water purification system using the purification method are the water purification method according to claim 4 or the water purification system according to any one of claims 1 to 3, wherein: The coagulated sludge floating in the water generated by stirring and mixing the coagulation-separating agent is collected, and the solidifying agent is added and stirred to the recovered coagulating sludge, and the solidifying agent is a porous material that absorbs the water in the coagulating sludge. Having high quality ash, the ash after absorbing water is rapidly solidified by the hydration reaction of the hydrated mineral of the solidifying component, the ethrin guide is solidified, and the solidified sludge is solidified, and the solidified sludge is solidified. Is characterized by being disposed of.

本願請求項１に係る水質浄化システムは、循環装置と混合攪拌装置とを別体のものとしているため、数人で持ち運ぶことができる。また、水面と水底間に安定して循環する水の流れを作り、その循環流中に凝集分離剤と水とを混合攪拌した混合液を投入するため、混合液は循環流域内の水に満遍なく行き渡る。そして、凝集分離剤は循環流域内の水に速やかに作用して、浮遊懸濁物質は凝固汚泥を生成することとなる。   In the water purification system according to claim 1 of the present application, since the circulation device and the mixing and stirring device are provided separately, it can be carried by several people. In addition, a stable circulating water flow is created between the water surface and the bottom of the water, and the mixed liquid obtained by mixing and stirring the coagulant separation agent and water is introduced into the circulating flow, so that the mixed liquid is evenly distributed in the water in the circulating flow region. Go around. Then, the flocculating and separating agent promptly acts on the water in the circulation basin, and the suspended suspended matter produces coagulated sludge.

また、本願請求項２に係る水質浄化システムでは、循環装置を所望の位置の水面上に設置し、この循環装置の構成は、該循環装置の下方の水を吸引するポンプ及び／又は吸込み部と吸引した水を水平方向に吐出する吐出部とからなる簡便な構造としている。そのため、この循環装置には、周知の技術を使用することができる。たとえば、水中ポンプを水中に吊設し、該水中ポンプの吸水部を該水中ポンプの下方に向けて吸込み部とし、該水中ポンプから排水管を水面まで立ち上げた後、水平方向に向けて該排水管の開放端を吐出部とする構成とすることにより循環装置とすることができる。また、特許第３３６００７５号公報に開示の技術を循環装置として利用することもできる。   Further, in the water purification system according to claim 2 of the present application, the circulation device is installed on the water surface at a desired position, and the configuration of this circulation device is such that a pump and/or a suction portion for sucking water below the circulation device are provided. It has a simple structure composed of a discharge part for discharging the sucked water in the horizontal direction. Therefore, a well-known technique can be used for this circulation device. For example, a submersible pump is hung in water, the water absorption part of the submersible pump is directed toward the lower part of the submersible pump to form a suction part, the drain pipe is raised from the submersible pump to the water surface, and then the submersible pump is horizontally oriented. A circulation device can be obtained by using the open end of the drainage pipe as the discharge part. Further, the technique disclosed in Japanese Patent No. 3360075 can be used as a circulation device.

そして、本願請求項２に係る水質浄化システムの混合攪拌装置は、装置本体、水中ポンプ、及び装置本体と水中ポンプを連結する送水管、から構成されているため、他に駆動装置を必要とせずに、水中ポンプから吐出される混合用水の水勢により凝集分離剤と混合用の水は迅速に攪拌され混合される。
また、装置本体は、混合水吸入部、攪拌部及び混合液排出部がこの順に水平方向に連設された構成となっていて、攪拌部の上部は水面上に開放されて凝集分離剤投入口が形成されている。装置本体をこのようなきわめて簡単な構成としていることから、装置本体自体をコンパクト化することができ、故障も少なく、メンテナンスも容易な装置とすることができる。なお、装置本体は金属製であってもよいが、合成樹脂製とすることにより、軽くて丈夫で、かつ、腐食に強い装置本体とすることができる。Further, the mixing and stirring device of the water purification system according to claim 2 of the present application includes the device body, the submersible pump, and the water supply pipe connecting the device body and the submersible pump, and thus does not require any other drive device. In addition, the flocculating and separating agent and the mixing water are rapidly stirred and mixed by the force of the mixing water discharged from the submersible pump.
Further, the apparatus main body has a structure in which a mixed water suction part, a stirring part, and a mixed liquid discharge part are horizontally connected in this order, and the upper part of the stirring part is opened above the water surface so that the coagulation/separation agent inlet Are formed. Since the device body has such an extremely simple structure, the device body itself can be made compact, and there can be few failures and maintenance can be easily performed. The device body may be made of metal, but if it is made of synthetic resin, the device body can be made light and durable and resistant to corrosion.

さらに、本願請求項２に係る水質浄化システムの凝集分離剤は、鉱物性微量元素を含み酸性領域においては陽イオン、アルカリ領域においては陰イオンとの間で両性のイオン交換能を有する天然鉱物の複合アルミナ・けい酸塩を主成分としている。このため以下に示す効果を生ずる。   Furthermore, the coagulant separating agent of the water purification system according to claim 2 of the present invention is a natural mineral which contains a mineral trace element and has an amphoteric ion-exchange ability with a cation in an acidic region and with an anion in an alkaline region. The main component is composite alumina/silicate. Therefore, the following effects are produced.

（１）複合アルミナ・けい酸は多分の鉱物性微量元素を含み、汚濁排水中に溶出して触媒的な役割を果たし、汚濁排水中に溶存する金属類を収集または析出固定分離させる。すなわち、鉱物性微量元素は酸化触媒として働き、水溶性有機物を不溶性物質に変えて析出し凝固体として収集するとともに、汚濁排水中の有機物酸化触媒と作用して、その一部が塩となって化合し、不溶性物質に変じて凝固体を形成する。 (1) The composite alumina/silicic acid contains a large amount of mineral trace elements, elutes in polluted wastewater and plays a catalytic role, and collects or deposits, fixes, and separates metals dissolved in polluted wastewater. That is, the mineral trace elements act as an oxidation catalyst, convert the water-soluble organic matter into an insoluble substance, precipitate it, and collect it as a solidified body.At the same time, it acts as an organic matter oxidation catalyst in polluted wastewater, and part of it becomes a salt. Compounds and transforms into an insoluble material to form a coagulum.

（２）また、複合アルミナ・けい酸は両性のイオン交換能を有することから、汚濁排水が酸性であってもアルカリ性であっても凝集分離性能を発揮するため、汚濁排水のｐＨ処理は不要であり、さらに、凝集分離処理後の分離水は略中性を呈することから分離水のｐＨ処理も不要である。 (2) In addition, since the composite alumina/silicic acid has an amphoteric ion-exchange ability, it exhibits coagulation separation performance regardless of whether the polluted wastewater is acidic or alkaline, so that pH treatment of the polluted wastewater is unnecessary. In addition, since the separated water after the coagulation separation treatment is substantially neutral, the pH treatment of the separated water is unnecessary.

（３）この一連の化学変化は下記の高分子化（Ａｌｍ（ＯＨ）ｎ・ＳｉｍＯｎ）された結果のものと思料される。
Ａｌ２Ｏ３・ｎＳｉＯ２→Ａｌｍ（ＯＨ）ｎ・ＳｉｍＯｎ (3) This series of chemical change is Shiryo as the polymerization (Al m (OH) n · Si m O n) is the result of the following.
Al 2 O 3 · nSiO 2 → Al m (OH) n · Si m O n

（４）さらに、複合アルミナの主成分である酸化アルミニウムは溶水中において下記の化学変化によりコロイド状の水酸化アルミニウム（Ａｌ２（ＯＨ）３）とイオン化された重縮合アルミニウム（Ａｌｍ（ＯＨ）ｎ）となり、浮遊懸濁物質の粒子間の電位低下を促して、粒子を崩壊・微粒子化し疎水性の凝固体を形成する。
Ａｌ２Ｏ３→Ａｌ２（ＯＨ）３＋Ａｌｍ（ＯＨ）ｎ (4) Further, aluminum oxide, which is the main component of the composite alumina, is a polycondensed aluminum (Al m (OH)) ionized with colloidal aluminum hydroxide (Al 2 (OH) 3 ) in the water by the following chemical changes. n ), which promotes a decrease in the electric potential between particles of the suspended suspended substance, causing the particles to collapse/particulate and form a hydrophobic coagulation body.
Al 2 O 3 →Al 2 (OH) 3 +Al m (OH) n

また、本願請求項３に係る水質浄化システムにおける混合攪拌装置の装置本体は、全体として両端が開放された横倒パイプ形状としている。パイプ形状はその断面が方形や楕円形であってもよいが、経済性やパイプとパイプ内を貫流する水との抵抗を軽減する観点から、さらには強度の点から、円形であることが望ましい。さらに、攪拌部は、仕切り板、第１の水流撹乱棒および第２の水流撹乱棒が配設されていて、短時間に凝集分離剤と水とを強制攪拌して混合液を生産することができるため、経時的な凝集分離剤の＋イオン濃度の低下を防ぐとともに、凝集分離剤と水分が均等に交ざらずに部分的に出来るかたまり、いわゆる継粉、の発生を防止することができる。   Further, the apparatus main body of the mixing and stirring apparatus in the water purification system according to claim 3 of the present application is in the form of a horizontal pipe with both ends open as a whole. The shape of the pipe may be rectangular or elliptical in cross section, but it is preferable that the shape of the pipe is circular from the viewpoint of economy and resistance to the water flowing through the pipe and from the viewpoint of strength. .. Further, the stirring section is provided with a partition plate, a first water flow agitation rod and a second water flow agitation rod, and it is possible to forcibly agitate the aggregating and separating agent and water in a short time to produce a mixed liquid. Therefore, it is possible to prevent the + ion concentration of the coagulation-separating agent from decreasing with time, and to prevent the formation of a so-called sinter powder, which is partly formed without the coagulation-separating agent and water uniformly mixing.

さらに、本願請求項４に係る水質浄化方法では、循環装置を所定時間稼動させて閉水域内に定循環流域を生起させ、この生起された循環流域中に凝集分離剤と閉水域の水で混合した混合液を投入することとしている。このため、閉水域内を循環流域としてのブロックに分けて水質浄化を図ることができ、循環流域の容積を調整しながら混合液を投入することによって、その効果を確認しつつ有効に水質浄化を図ることができ経済的である。なお、定循環流域を生起させるための所定時間は、循環装置の性能及び対象とする循環流域の容積にも拠るが、概ね数日間を要する。   Further, in the water purification method according to claim 4 of the present application, the circulation device is operated for a predetermined time to generate a constant circulation basin in the closed water basin, and the coagulation separating agent and the water in the closed water basin are mixed in the generated circulation basin. The mixed solution is added. For this reason, it is possible to purify water quality by dividing the closed water area into blocks as a circulation basin, and by introducing the mixed liquid while adjusting the volume of the circulation basin, it is possible to effectively purify the water while confirming its effect. It can be planned and is economical. The predetermined time for generating the constant circulation basin depends on the performance of the circulation device and the volume of the target circulation basin, but it takes several days.

また、本願請求項４に係る水質浄化方法では、凝集分離剤を５０〜３００ｍｇ／リットルの範囲内で投入することとしている。この投入量は汚濁濃度によって多少の増減があるが、凝集分離剤を攪拌混合して定循環流中に投入すると、１分ないし２分というきわめて短時間で汚濁物質は析出凝固して沈降分離し始め、上澄み水と凝固汚泥は完全に分離する。また、分離した凝固汚泥は崩壊または溶解することがなく安定性が高く、一部は水中に沈殿するが、多くは水面および水中を浮遊する。   In addition, in the water purification method according to claim 4 of the present application, the coagulation-separating agent is added within the range of 50 to 300 mg/liter. Although the amount of this input changes slightly depending on the contaminant concentration, when the aggregating/separating agent is agitated and mixed into the constant circulation flow, the contaminants are precipitated and solidified in a very short time of 1 to 2 minutes to cause sedimentation and separation. At the beginning, the supernatant water and the coagulated sludge are completely separated. In addition, the separated coagulated sludge is highly stable and does not disintegrate or dissolve, and some precipitate in water, but most float on the water surface and in water.

そして、本願請求項４に係る水質浄化方法または本願請求項１ないし３のいずれかに係る水質浄化システムでは、水面および水中に浮遊する凝固汚泥を回収し、回収した凝固汚泥に所定の固化剤を所要量添加して攪拌し、固化後の凝固汚泥を廃棄することとしている。回収した凝固汚泥を放置しておくと、凝固汚泥中の有機物が腐敗し、異臭を発するようになるが、所定の固化剤を混入することにより、これを防止することができる。したがって、廃棄作業自体が楽になり、作業者に負担をかけることもなければ、また、長期間放置しておいても、周囲環境に悪影響を及ぼすことがないため、作業時間を柔軟に設定することができる。さらには、凝固汚泥中の水分が吸水されて固化されるから、そのまま植物の肥料にすることもでき、廃棄処分に適したものとなる。
本願発明で使用する固化剤は、多孔質のアッシュを有していて、このアッシュの多孔質に有機質、臭気等が短時間で吸収される。そして、凝固汚泥中の水分を吸収したアッシュは固化剤成分の水和化鉱物によって水和反応が起こり、速やかにエトリンガイドが生成する。エトリンガイドの生成は土質の含水比を低下させる等の働きがあるため、アッシュと土粒子に妨げられることなくエトリンガイドの生成が進み、その結晶は針状結晶で、アッシュと土粒子とを包囲しながら土質を迅速に固化していく。Then, in the water purification method according to claim 4 of the present application or the water purification system according to any of claims 1 to 3, the coagulated sludge floating on the water surface and in the water is recovered, and a predetermined solidifying agent is added to the recovered coagulated sludge. The required amount is added and stirred, and the solidified sludge after solidification is discarded. If the collected coagulated sludge is left to stand, the organic matter in the coagulated sludge will rot and give off an offensive odor, but this can be prevented by mixing a predetermined solidifying agent. Therefore, it is easy to dispose of the waste itself, it does not burden the worker, and even if it is left for a long time, it will not adversely affect the surrounding environment. You can Furthermore, since water in the coagulated sludge is absorbed and solidified, it can be used as a plant fertilizer as it is, which is suitable for disposal.
The solidifying agent used in the present invention has a porous ash, and the organic matter, odor, etc. are absorbed in a short time by the porous ash. Then, the ash that has absorbed the water in the coagulated sludge undergoes a hydration reaction by the hydrated mineral of the solidifying component, and an ethrin guide is promptly generated. Since the formation of ethrin guide has a function of lowering the water content of soil, etc., the formation of ethrin guide proceeds without being hindered by ash and soil particles, and its crystals are needle-like crystals. The soil will be solidified rapidly while it is surrounded.

図１は、実施例に係る水質浄化システムの全体図である。FIG. 1 is an overall view of a water purification system according to an embodiment. 図２は、凝集分離剤混合攪拌装置の全体図、図２（ａ）は混合攪拌装置の平面図、図２（ｂ）は混合攪拌装置の側面図、図２（ｃ）は混合攪拌装置のＣ−Ｃ矢視断面図である。2 is an overall view of the flocculating/separating agent mixing and stirring apparatus, FIG. 2A is a plan view of the mixing and stirring apparatus, FIG. 2B is a side view of the mixing and stirring apparatus, and FIG. It is a CC sectional view taken on the arrow. 図３は、混合攪拌装置の作用説明図である。FIG. 3 is an explanatory view of the operation of the mixing and stirring device. 図４は、循環装置の概略全体図である。FIG. 4 is a schematic overall view of the circulation device. 図５は、凝集分離剤の反応メカニズムの説明図である。FIG. 5 is an explanatory diagram of a reaction mechanism of the aggregation and separation agent. 図６は、凝集分離剤投入前後の水質分析結果を示すグラフであり、図６（ａ）はＣＯＤ、ＳＳおよびクロロフィルａに関する分析結果、図６（ｂ）はＴＮおよびＴＰに関する分析結果である。FIG. 6 is a graph showing the results of water quality analysis before and after the addition of the flocculating/separating agent. FIG. 6( a) shows the analysis results for COD, SS and chlorophyll a, and FIG. 6( b) shows the analysis results for TN and TP. 図７は、固化剤の反応メカニズムの説明図である。FIG. 7 is an explanatory diagram of a reaction mechanism of the solidifying agent. 図８は、特開２００４−２９８８１７号公報に開示の技術の模式図である。FIG. 8 is a schematic diagram of the technique disclosed in Japanese Patent Laid-Open No. 2004-298817. 図９は、特許第３３６００７５号公報に開示の技術に係る浮遊型省エネ浄水機の断面図である。FIG. 9 is a sectional view of a floating energy-saving water purifier according to the technique disclosed in Japanese Patent No. 3360075.

符号の説明Explanation of symbols

１ 水質浄化システム
１０ 湖沼
１１ 水面
１２ 水底
２０ 混合攪拌装置
２１ 装置本体
２２ 混合水吸入部
２３ 攪拌部
２４ 混合液排出部
２５ 仕切り板
２６ スリット
２７ 第１の水流撹乱棒
２８ 第２の水流撹乱棒
２９ 凝集分離剤投入口
３０ 水中ポンプ
３１ 連結管
４０ 循環装置
４１ 吸込み部
４２ 吐出部
５２ 凝固汚泥1 Water Purification System 10 Lakes 11 Water Surface 12 Water Bottom 20 Mixing and Stirring Device 21 Equipment Main Body 22 Mixing Water Suction Part 23 Stirring Part 24 Mixed Liquid Discharging Part 25 Partition Plate 26 Slit 27 First Water Flow Disturbing Rod 28 Second Water Flow Disturbing Rod 29 Coagulation/separation agent input port 30 Submersible pump 31 Connection pipe 40 Circulation device 41 Suction part 42 Discharge part 52 Coagulated sludge

本願発明を実施するための最良の形態に係る実施例について、図１ないし図７に基づいて説明する。図１は、実施例に係る水質浄化システムの全体図であり、図２は、混合攪拌装置の全体図、図２（ａ）は混合攪拌装置の平面図、図２（ｂ）は混合攪拌装置の側面図、図２（ｃ）は混合攪拌装置のＣ−Ｃ矢視断面図であり、図３は、混合攪拌装置の作用説明図であり、図４は、循環装置の概略全体図であり、図５は、凝集分離剤の反応メカニズムの説明図であり、そして、図６は、凝集分離剤投入前後の水質分析結果を示すグラフであり、図６（ａ）はＣＯＤ、ＳＳおよびクロロフィルａに関する分析結果、図６（ｂ）はＴＮおよびＴＰに関する分析結果、図７は、固化剤の反応メカニズムの説明図である。   An embodiment according to the best mode for carrying out the present invention will be described with reference to FIGS. 1 to 7. 1 is an overall view of a water purification system according to an embodiment, FIG. 2 is an overall view of a mixing and stirring apparatus, FIG. 2A is a plan view of the mixing and stirring apparatus, and FIG. 2B is a mixing and stirring apparatus. 2C is a cross-sectional view of the mixing and stirring apparatus taken along the line C-C, FIG. 3 is an explanatory view of the operation of the mixing and stirring apparatus, and FIG. 4 is a schematic overall view of the circulation apparatus. FIG. 5 is an explanatory view of the reaction mechanism of the flocculating and separating agent, and FIG. 6 is a graph showing the results of water quality analysis before and after feeding the flocculating and separating agent, and FIG. 6( a) is COD, SS and chlorophyll a. 6A and FIG. 7B are explanatory diagrams of the reaction mechanism of the solidifying agent.

図１ないし図４において、符号１は実施例に係る水質浄化システム、符号１０は湖沼、符号１１は水面、符号１２は水底、符号２０は混合攪拌装置、符号２１は装置本体、符号２２は混合水吸入部、符号２３は攪拌部、符号２４は混合液排出部、符号２５は仕切り板、符号２６はスリット、符号２７は第１の水流撹乱棒、符号２８は第２の水流撹乱棒、符号２９は凝集分離剤投入口、符号３０は水中ポンプ、符号３１は送水管、符号３２は送水排出口、符号４０は循環装置、符号４１は吸込み部、符号４２は吐出部、符号５２は凝固汚泥である。   1 to 4, reference numeral 1 is a water purification system according to the embodiment, reference numeral 10 is a lake, reference numeral 11 is a water surface, reference numeral 12 is a water bottom, reference numeral 20 is a mixing and stirring device, reference numeral 21 is an apparatus main body, and reference numeral 22 is mixing. Reference numeral 23 is a stirring portion, reference numeral 24 is a mixing liquid discharge portion, reference numeral 25 is a partition plate, reference numeral 26 is a slit, reference numeral 27 is a first water flow disturbance rod, reference numeral 28 is a second water flow disturbance rod, reference numeral Reference numeral 29 is a coagulant/separator inlet, reference numeral 30 is an underwater pump, reference numeral 31 is a water supply pipe, reference numeral 32 is a water supply outlet, reference numeral 40 is a circulation device, reference numeral 41 is a suction section, reference numeral 42 is a discharge section, and reference numeral 52 is coagulation sludge. Is.

水質浄化システム１は大別して、混合攪拌装置２０と、循環装置４０と、凝集分離剤と、から構成されるが、まず、水質浄化システム１を構成する混合攪拌装置２０および循環装置４０について説明する。   The water purification system 1 is roughly divided into a mixing and stirring device 20, a circulation device 40, and a flocculating and separating agent. First, the mixing and stirring device 20 and the circulation device 40 that constitute the water purification system 1 will be described. ..

混合攪拌装置２０は、装置本体２１と、水中ポンプ３０と、装置本体２１と水中ポンプ３０とを連結する送水管３１と、から構成されていて、装置本体２１は水面１１に浮かんだ状態に設置され、水中ポンプ３０は水中に吊設されている。装置本体２１は、概ね中空円筒を横に寝かせた状態の形状を呈していて、その両端は開放されて、一端は混合水吸入部２２を形成し、他端は混合液排出部２４を形成していて、混合水吸入部２２と混合液排出部２４の間に攪拌部２３が形成されている。また、装置本体２１の中心軸は水面１１と略一致するようになっている。すなわち、装置本体２１の下半分は水中に没し、上半分は水面上に浮上している。実施例においては、装置本体２１はその直径を３３０ｍｍ、長さを１１４０ｍｍとしている。また水中ポンプは呼び径２吋のものを使用している。   The mixing and stirring device 20 is composed of a device body 21, a submersible pump 30, and a water supply pipe 31 connecting the device body 21 and the submersible pump 30, and the device body 21 is installed in a state of floating on the water surface 11. The submersible pump 30 is suspended in water. The apparatus main body 21 has a shape in which a hollow cylinder is laid down sideways, and both ends thereof are opened, one end forms a mixed water suction portion 22, and the other end forms a mixed liquid discharge portion 24. In addition, the stirring unit 23 is formed between the mixed water suction unit 22 and the mixed liquid discharge unit 24. Further, the central axis of the device body 21 substantially coincides with the water surface 11. That is, the lower half of the apparatus main body 21 is submerged in water, and the upper half is floating above the water surface. In the embodiment, the device body 21 has a diameter of 330 mm and a length of 1140 mm. The submersible pump has a nominal diameter of 2 inches.

混合水吸入部２２の開放端の上部には、他端を水中ポンプ３０に連設された送水管３１の一端が挿着される送水排出口３２が、混合水吸入部２２の開放端に直交して固着されている。すなわち、送水排出口３２の吐出方向は、水平かつ装置本体２１の中心軸に平行となっている。   Above the open end of the mixed water intake portion 22, a water supply outlet 32, into which one end of a water supply pipe 31 connected to the submersible pump 30 at the other end is inserted, is orthogonal to the open end of the mixed water intake portion 22. And is stuck. That is, the discharge direction of the water supply/discharge port 32 is horizontal and parallel to the central axis of the apparatus main body 21.

攪拌部２３は装置本体２１内に形成されていて、混合水吸入部２２から混合液排出部２４へ向けて所定の間隔をもって順に、仕切り板２５、第１の水流撹乱棒２７、第２の水流撹乱棒２８が装置本体２１内に挿着されている。仕切り板２５は、混合水吸入部２２の開放端に固着された送水排出口３２に対応する位置にあって、装置本体２１内の上半分を仕切るように挿着されていて、仕切り板２５には水平方向に口を開いたスリット２６が貫設されている。
ところで、仕切り板２５と第１の水流撹乱棒２７との間には上端および下端が開放された凝集分離剤投入口２９が貫設されていて、凝集分離剤投入口２９の上端は水平にカットされ、凝集分離剤投入口２９の下端は斜めにカットされている。そして、斜めにカットされている凝集分離剤投入口２９の下端は装置本体２１を貫通して固着されているが、斜めにカットされた長いほうの先端は装置本体２１の略中心軸まで達し、その面は混合水吸入部２２方向に向けられて仕切り板２５を形成している。すなわち、仕切り板２５と凝集分離剤投入口２９は一体の中空円筒から形成されている。また、斜めにカットされている凝集分離剤投入口２９の短いほうの下端と、装置本体２１の内壁とは略同一レベルとなっている。実施例においては、凝集分離剤投入口２９の直径を２３０ｍｍとしている。The stirring section 23 is formed in the apparatus main body 21, and is arranged in order from the mixed water suction section 22 toward the mixed solution discharge section 24 at a predetermined interval in order of the partition plate 25, the first water flow disturbing rod 27, and the second water flow. The disturbing rod 28 is inserted in the apparatus main body 21. The partition plate 25 is located at a position corresponding to the water supply/discharge port 32 fixed to the open end of the mixed water suction portion 22, and is inserted and partitioned so as to partition the upper half of the apparatus main body 21. Is provided with a slit 26 having an opening in the horizontal direction.
By the way, between the partition plate 25 and the first water flow agitation rod 27, there is provided a coagulant/separator input port 29 having an open upper end and a lower end, and the coagulant/separator input port 29 has its upper end cut horizontally. The lower end of the aggregation/separation agent inlet 29 is cut diagonally. The lower end of the obliquely cut coagulant-separating agent inlet 29 is fixed by penetrating the device body 21, but the longer end of the obliquely cut reaches the substantially central axis of the device body 21, The surface is directed toward the mixed water suction portion 22 to form a partition plate 25. That is, the partition plate 25 and the coagulation/separation agent inlet 29 are formed as an integral hollow cylinder. Further, the lower end of the diagonally cut coagulation/separation agent inlet 29 and the inner wall of the apparatus main body 21 are at substantially the same level. In the embodiment, the diameter of the aggregation/separation agent inlet 29 is 230 mm.

第１の水流撹乱棒２７および第２の水流撹乱棒２８は、細径のパイプであって、第１の水流撹乱棒２７は、装置本体２１を装置本体２１の中心軸を通って垂直方向に貫通し、第２の水流撹乱棒２８は、装置本体２１を装置本体２１の中心軸を通って水平方向に貫通している。すなわち、正面視において、第１の水流撹乱棒２７と第２の水流撹乱棒２８は、互いに直交していることになる。実施例においては、第１の水流撹乱棒２７および第２の水流撹乱棒２８を直径４０ｍｍのパイプとしていて、第１の水流撹乱棒２７は、仕切り板２５から混合液排出部２４に向けて４８０ｍｍ離間した位置に、第２の水流撹乱棒２８は、さらに第１の水流撹乱棒２７から２００ｍｍ離間した位置に挿着されている。   The first water flow disturbing rod 27 and the second water flow disturbing rod 28 are small-diameter pipes, and the first water flow disturbing rod 27 moves the device body 21 vertically through the central axis of the device body 21. The second water flow disturbing rod 28 penetrates the device body 21 in the horizontal direction through the central axis of the device body 21. That is, when viewed from the front, the first water flow disturbing rod 27 and the second water flow disturbing rod 28 are orthogonal to each other. In the embodiment, the first water flow disturbing rod 27 and the second water flow disturbing rod 28 are pipes having a diameter of 40 mm, and the first water flow disturbing rod 27 is 480 mm from the partition plate 25 toward the mixed liquid discharge part 24. The second water flow disturbing rod 28 is inserted at a position spaced apart from the first water flow disturbing rod 27 by a distance of 200 mm.

そして、混合液排出部２４は、仕切り板２５、第１の水流撹乱棒２７および第２の水流撹乱棒２８から構成される攪拌部２３に連設されているが、混合液排出部２４には何ら付帯する構成要素はなく、開放端がそのまま混合液排出部２４となる。   The mixed liquid discharge part 24 is connected to the stirring part 23 composed of the partition plate 25, the first water flow disturbing rod 27 and the second water flow disturbing rod 28. There are no additional components, and the open end serves as the mixed liquid discharge part 24 as it is.

本実施例における循環装置４０は、前述のように、水中ポンプを水中に吊設し、該水中ポンプの吸水部を該水中ポンプの下方に向けて吸引部とし、該水中ポンプから排水管を水面まで立ち上げた後、水平方向に向けて該排水管の開放端を吐出部とする構成とすることもできるが、本実施例においては、有限会社センサ研究所の商品名「バイオファン」を使用している。このバイオファンは「背景技術」で取り上げた「特許文献３」に相当するものであるが、図９の装置とは些かその構成が異なっているので、図４を基に概説する。なお、図４においては、図９と同一の要素については同一の符号を付している。   As described above, in the circulation device 40 of the present embodiment, the submersible pump is suspended in water, and the water absorption part of the submersible pump is directed toward the lower part of the submersible pump to serve as a suction part, and the drain pipe from the submersible pump to the water surface. It is also possible to use the open end of the drainage pipe as the discharge part in the horizontal direction after starting up up to this point, but in this example, the product name "Biofan" of Sensor Research Co., Ltd. is used. is doing. This biofan corresponds to "Patent Document 3" taken up in "Background Art", but its configuration is slightly different from that of the device shown in Fig. 9, and will be outlined with reference to Fig. 4. In FIG. 4, the same elements as those in FIG. 9 are designated by the same reference numerals.

循環装置４０は、モーター２０１（正確には、符号２０１はモーターを格納する格納庫のカバーである。）と、フロート２０２と、フロート付き起流羽根２０３と、から構成されている。循環装置４０は、フロート２０２とフロート付き起流羽根２０３により水面１１上に浮遊する。モーター２０１によりフロート付き起流羽根２０３が水面上を水平方向に回転すると、循環装置４０の下方の水はこの回転により吸引されるとともに、水平方向に放射状に吐出される。すなわち、フロート付き起流羽根２０３の回転により、循環装置４０の下部には吸込み部４１が形成され、循環装置４０の水平部には吐出部４２が形成される。   The circulation device 40 is composed of a motor 201 (more precisely, reference numeral 201 is a cover of a housing for storing the motor), a float 202, and a flow-equipped vane 203 with a float. The circulation device 40 floats on the water surface 11 by the float 202 and the inflow vane 203 with a float. When the float 201 with float is horizontally rotated on the water surface by the motor 201, the water below the circulation device 40 is sucked by this rotation and is discharged radially in the horizontal direction. That is, due to the rotation of the float blade 203, the suction portion 41 is formed in the lower portion of the circulation device 40, and the discharge portion 42 is formed in the horizontal portion of the circulation device 40.

つぎに、水質浄化システム１に使用される凝集分離剤について説明する。
前述のように、この凝集分離剤は、鉱物性微量元素を含み酸性領域においては陽イオン、アルカリ領域においては陰イオンとの間で両性のイオン交換能を有する天然鉱物の複合アルミナ・けい酸塩を主成分としている。本実施例においては、ジェック化学株式会社の商品名「ＪＥＣクリーン」／ミクニエコシステム株式会社の商品名「スカイクリーン」を使用している。Next, the flocculating and separating agent used in the water purification system 1 will be described.
As described above, this coagulation/separation agent is a composite alumina/silicate of a natural mineral that contains mineral trace elements and has amphoteric ion exchange capacity with cations in the acidic region and anions in the alkaline region. Is the main component. In this embodiment, the product name "JEC Clean" by Jeck Chemical Co., Ltd./the product name "Sky Clean" by Mikuni Ecosystem Co., Ltd. is used.

スカイクリーンは見掛け比重が１．６２の白色の微粉末であり、弱アルカリ性を呈する。そして、その成分組成は、酸化けい素（ＳｉＯ２）５０％、酸化カルシウム（ＣａＯ）２０％、酸化アルミニウム（Ａｌ２Ｏ３）２０％、酸化鉄（Ｆｅ２Ｏ３）５％、微量元素他５％となっている。また、ＪＥＣクリーン／スカイクリーンの主剤は天然鉱物の複合アルミナ・けい酸塩であり、アルミナ・けい酸塩はイオン交換能を有し、酸性領域においては陽イオン、アルカリ領域においては陰イオンと両性の交換能をもっている。Skyclean is a fine white powder with an apparent specific gravity of 1.62 and exhibits weak alkalinity. And the component composition is silicon oxide (SiO 2 ) 50%, calcium oxide (CaO) 20%, aluminum oxide (Al 2 O 3 ) 20%, iron oxide (Fe 2 O 3 ) 5%, trace elements, etc. It is 5%. In addition, the main agent of JEC Clean/Sky Clean is a composite mineral/silicate of natural minerals. Alumina/silicate has an ion-exchange ability, and is amphoteric with a cation in the acidic region and an anion in the alkaline region. Have exchange ability.

ここで、ＪＥＣクリーン／スカイクリーンの閉水域中における浮遊懸濁物質を凝集分離させる反応メカニズムについて、図５を基に説明する。図５において、符号５１は浮遊懸濁物質、符号５２は凝固汚泥であり、「−」はマイナスの電荷、「＋」はプラスの電荷である。   Here, the reaction mechanism for flocculating and separating the suspended suspended matter in the JEC clean/sky clean closed water region will be described with reference to FIG. In FIG. 5, reference numeral 51 is a suspended suspended substance, reference numeral 52 is coagulated sludge, “−” is a negative charge, and “+” is a positive charge.

一般に水中の浮遊懸濁物質５１はマイナスに帯電していて、その表面はマイナスの電荷で覆われている（図５（ａ））。そのため、浮遊懸濁物質５１同士は互いに反発して凝集することなく水中を浮遊する。一方、凝集分離剤はプラスの電荷を有していて（図５（ｂ））、このプラスの電荷は浮遊懸濁物質５１の表面のマイナスの電荷に引き寄せられ、浮遊懸濁物質５１の表面は電気的に中和した状態となる（図５（ｃ））。   Generally, the suspended suspended solids 51 in water are negatively charged, and the surface thereof is covered with a negative charge (FIG. 5A). Therefore, the suspended suspended substances 51 repel each other and float in the water without aggregating. On the other hand, the aggregating/separating agent has a positive charge (FIG. 5( b )), and this positive charge is attracted to the negative charge on the surface of the suspended suspended substance 51, and the surface of the suspended suspended substance 51 is It is in an electrically neutralized state (FIG. 5(c)).

前述したように、本願発明では、天然鉱物の複合アルミナ・けい酸塩を主成分とする凝集分離剤を使用しており、この凝集分離剤に含まれる酸化アルミニウムがコロイド状の水酸化アルミニウム（Ａｌ２（ＯＨ）３）とイオン化された重縮合アルミニウム（Ａｌｍ（ＯＨ）ｎ）となり、この重縮合アルミニウムにより浮遊懸濁物質５１の表面が電気的に中和される。そして、電気的に中和した状態となった浮遊懸濁物質５１は、互いに結合して大きな凝固汚泥５２を形成する（図５（ｄ））。As described above, in the present invention, the coagulation/separation agent containing a natural mineral composite alumina/silicate as a main component is used, and the aluminum oxide contained in the coagulation/separation agent is colloidal aluminum hydroxide (Al). 2 (OH) 3 ) becomes ionized polycondensed aluminum (Al m (OH) n ), and the surface of the suspended suspended substance 51 is electrically neutralized by this polycondensed aluminum. Then, the electrically suspended floating suspended substances 51 are combined with each other to form a large coagulated sludge 52 (FIG. 5D).

つぎに、水質浄化システム１の動かし方について、説明する。
水質浄化システム１を使用する水質浄化方法は以下の工程からなる。すなわち、
ステップ１：混合攪拌装置２０を所定時間、湖沼１０で稼働させて、凝集分離剤を所定量投入して攪拌混合する。
ステップ２：凝集分離剤を攪拌混合して生成された水中に浮遊する凝固汚泥２０を回収する。
ステップ３：回収した凝固汚泥２０に固化剤を添加して攪拌し、固化させる。
ステップ４：固化した凝固汚泥２０を廃棄処分する。Next, how to operate the water purification system 1 will be described.
The water purification method using the water purification system 1 includes the following steps. That is,
Step 1: The mixing/stirring device 20 is operated in the lake 10 for a predetermined time, and a predetermined amount of the flocculating/separating agent is added to stir and mix.
Step 2: Collect the coagulated sludge 20 that is generated by stirring and mixing the coagulation-separating agent and that floats in the water.
Step 3: A solidifying agent is added to the collected coagulated sludge 20 and stirred to solidify.
Step 4: Discard the solidified coagulated sludge 20.

まず、ステップ１について説明する。
循環装置４０を閉水域に浮かべさせて自由に移動できるような状態で稼動すると、循環装置４０の下方の水は吸引され、水平方向に吐出される。所定時間、循環装置４０を稼動させることにより、水面と水底間には、図１の矢印に示すような定循環流域が生ずる。この循環流域は垂直方向の循環流Ｖと水平方向の循環流Ｈからなる。First, step 1 will be described.
When the circulation device 40 is floated in a closed water region and operated in a state where it can be freely moved, the water below the circulation device 40 is sucked and discharged in the horizontal direction. By operating the circulation device 40 for a predetermined time, a constant circulation basin as shown by the arrow in FIG. 1 is generated between the water surface and the water bottom. This circulation basin consists of a vertical circulation flow V and a horizontal circulation flow H.

定循環流域が形成された後、混合液排出部２４を循環流Ｈの流れる方向に向けて混合攪拌装置２０をセットし、水中ポンプ３０を稼動させ、凝集分離剤を凝集分離剤投入口２９から投入する。   After the constant circulation basin is formed, the mixing/stirring device 20 is set with the mixed liquid discharge part 24 directed in the direction of the circulation flow H, the submersible pump 30 is operated, and the coagulation/separation agent is supplied from the coagulation/separation agent inlet 29. throw into.

水中ポンプ３０の稼動により、混合水吸入部２２の開放端の上部に固着された送水排出口３２から水が勢いよく吐出され、仕切り板２５に衝突する。仕切り板２５に衝突した水は、一部が仕切り板２５に跳ね返されて下に落ち、装置本体２１内の水と混ざり合って渦を引き起こす。また、仕切り板２５に衝突した水の一部は、スリット２６を貫通するが、貫通する際に仕切り板２５の混合液排出部２４側で渦を発生させる（図３（ａ））。   By the operation of the submersible pump 30, water is vigorously discharged from the water supply outlet 32 fixed to the upper portion of the open end of the mixed water suction portion 22, and collides with the partition plate 25. The water that has collided with the partition plate 25 is partly repelled by the partition plate 25 and falls down, and mixes with the water in the apparatus main body 21 to cause a vortex. Further, a part of the water that has collided with the partition plate 25 penetrates the slit 26, but when it penetrates, a vortex is generated on the mixed liquid discharge part 24 side of the partition plate 25 (FIG. 3A).

送水排出口３２からは次々に水が吐出されるため、装置本体２１内には、混合水吸入部２２から混合液排出部２４へ向かう水の流れが生じ、凝集分離剤と水は、攪拌混合され、かつ、渦巻きながら混合液排出部２４へ向かう（図３（ｂ））。そして、垂直方向に固着された第１の水流撹乱棒２７により、この凝集分離剤と水が混合された混合液はさらにかく乱されて混合液排出部２４へ向かい、その後、水平方向に固着された第２の水流撹乱棒２８により再度かく乱されて混合液排出部２４から混合攪拌装置２０外へ排出される（図３（ｃ））。   Since water is successively discharged from the water discharge outlet 32, a flow of water is generated in the apparatus main body 21 from the mixed water suction portion 22 to the mixed liquid discharge portion 24, and the flocculating and separating agent and water are stirred and mixed. And is swirled toward the mixed liquid discharge part 24 (FIG. 3B). Then, the first water flow agitation rod 27 fixed in the vertical direction further disturbs the mixed liquid in which the coagulation-separating agent and water are mixed, and goes to the mixed liquid discharge part 24, and then is fixed in the horizontal direction. It is again disturbed by the second water flow disturbing rod 28 and discharged from the mixed liquid discharge part 24 to the outside of the mixing and stirring device 20 (FIG. 3(c)).

装置本体２１により満遍なく攪拌され混合された凝集分離剤は、混合液排出部２４から排出されて、循環流Ｈに投入される。凝集分離剤が循環流Ｈに投入されると、１分ないし２分という短時間で汚濁物質は析出凝固して凝固汚泥５２が形成されて沈降分離し始め、水と凝固汚泥５２は完全に分離する。   The coagulation/separation agent that is evenly stirred and mixed by the apparatus main body 21 is discharged from the mixed liquid discharge unit 24 and is input to the circulation flow H. When the flocculating and separating agent is introduced into the circulation flow H, the pollutant is precipitated and solidified in a short time of 1 to 2 minutes to form the coagulated sludge 52, which begins to settle and separate, and the water and the coagulated sludge 52 are completely separated. To do.

ここで、水質浄化システム１についておこなった実験について説明する。
実験は千葉県佐倉市にある大野調整池でおこなった。この大野調整池は掘り込め形式の調整池であり、集水面積は２７３ｈａ、容積は３５１５ｍ３、面積は１４２３ｍ２である。なお、大野調整池は比較的容積の小さい池であるため、大野調整池全体を一つの循環流域とした。Here, an experiment conducted on the water purification system 1 will be described.
The experiment was conducted at the Ohno Reservoir in Sakura City, Chiba Prefecture. This Ohno regulating pond is a digging type regulating pond, and has a catchment area of 273 ha, a volume of 3515 m 3 , and an area of 1423 m 2 . Since the Ohno regulating reservoir has a comparatively small volume, the entire Ohno regulating reservoir was defined as one circulation basin.

まず、循環装置４０（商品名「バイオファン」）を４週間稼動させて、定循環流域を生起させ、大野調整池内の水質状態が均一になった後、混合攪拌装置２０を稼動させて前述の凝集分離剤（商品名「ＪＥＣクリーン」／「スカイクリーン」）を投入した。投入する凝集分離剤の量は魚などの水中生物の生存に配慮して凝集分離剤濃度が７５ｍｇ／リットルとなるようにした。この実験の結果を図６に示す。   First, the circulation device 40 (product name “Biofan”) is operated for 4 weeks to generate a constant circulation basin, and after the water quality in the Ohno adjustment pond becomes uniform, the mixing and stirring device 20 is operated to operate as described above. An aggregating and separating agent (trade name "JEC Clean"/"Sky Clean") was added. The amount of the aggregating/separating agent added was adjusted so that the aggregating/separating agent concentration was 75 mg/liter in consideration of survival of aquatic organisms such as fish. The results of this experiment are shown in FIG.

図６は、凝集分離剤の投入前と投入後を比較したものである。凝集分離剤の投入前と投入後では、ＣＯＤおよびＳＳはそれぞれ３２．５ｍｇ／リットルから３．０ｍｇ／リットルおよび１７４ｍｇ／リットルから８．０ｍｇ／リットルに減少し、その除去率はそれぞれ９０．７％および９５．４％となっていて、水質浄化効果が優れていることが証明された（図６（ａ））。また、栄養塩として、ＴＮ、ＴＰおよびＢＯＤはそれぞれ４．５ｍｇ／リットルから１．２ｍｇ／リットル、０．４４ｍｇ／リットルから０．１４ｍｇ／リットルおよび７．２ｍｇ／リットルから１．８ｍｇ／リットルに減少し、その除去率はそれぞれ７３．３％、６８．２％および７５．０％となった（図６（ｂ））が、これは、水中生物の生存に配慮した比較的低い凝集分離剤濃度によるものと考えられる。そして、クロロフィル濃度は１１９μｇ／リットルから１３μｇ／リットルに減少し、その除去率は８９．１％となった（図６（ａ））が、これは凝固汚泥となって池の中に存在しているものと考えられる。   FIG. 6 is a comparison between before and after the addition of the flocculating and separating agent. Before and after the addition of the flocculating/separating agent, COD and SS were reduced from 32.5 mg/liter to 3.0 mg/liter and 174 mg/liter to 8.0 mg/liter, respectively, and the removal rate was 90.7%, respectively. And 95.4%, which proved that the water purification effect was excellent (FIG. 6(a)). As nutrients, TN, TP, and BOD were reduced from 4.5 mg/liter to 1.2 mg/liter, 0.44 mg/liter to 0.14 mg/liter, and 7.2 mg/liter to 1.8 mg/liter, respectively. However, the removal rates were 73.3%, 68.2% and 75.0%, respectively (Fig. 6(b)). It is thought to be due to. Then, the chlorophyll concentration decreased from 119 μg/liter to 13 μg/liter, and the removal rate was 89.1% (Fig. 6(a)), but this was coagulated sludge and was present in the pond. It is thought that there is.

なお、本実験において、形成された凝固汚泥５２の多くは水面に浮上するか、水中を漂うことが確認された。これは、混合攪拌装置２０により凝集分離剤は水とともに空気も一緒に攪拌されるため、凝固汚泥５２は空気成分を含むことによるものと考えられる。さらに、形成された凝固汚泥５２が湖沼１０に生息する魚の餌となることが確認された。これは、凝固汚泥５２が栄養塩も含むためと考えられる。
この餌としての凝固汚泥５２の安全性が確認できれば、水底に沈降した一部の凝固汚泥５２は水中生物１３の餌となる一方、水面に浮上するか、水中を漂う凝固汚泥５２は容易に回収することができる。したがって、本願発明に係る水質浄化システムは、閉水域に生息する魚をも取り込んだ閉水域全体からなる水質浄化システムとなる。In this experiment, it was confirmed that most of the formed solidified sludge 52 floats on the water surface or floats in water. It is considered that this is because the coagulation/separation device 20 stirs the coagulation/separation agent together with the air together with the water, so that the coagulated sludge 52 contains an air component. Further, it was confirmed that the formed coagulated sludge 52 serves as a food for the fish inhabiting the lake 10. It is considered that this is because the coagulated sludge 52 also contains nutrient salts.
If the safety of the coagulated sludge 52 as this bait can be confirmed, part of the coagulated sludge 52 that has settled to the bottom of the water serves as a bait for the underwater organisms 13, while the coagulated sludge 52 that floats on the water surface or drifts in the water is easily recovered. can do. Therefore, the water purification system according to the present invention is a water purification system that includes the entire closed water area that also takes in fish that live in the closed water area.

また、上記ＪＥＣクリーン／スカイクリーン８０ｍｇ／リットルを他の汚水又は濁水において実証した結果を比較例として、表１に示す。表１は、比較例として、上記ＪＥＣクリーン／スカイクリーンを前記同様、河川水及びトンネル工事濁水に使用した場合の例を示すものである。この表から解るように、ＪＥＣクリーン／スカイクリーンは酸性領域（河川水）においてもアルカリ領域（トンネル工事濁水）においても有効にその性能を発揮していることが分かる。したがって、池の汚水だけでなく、河川汚水、工事濁水が滞留する閉水域環境にも有効である。   In addition, Table 1 shows, as a comparative example, the results of demonstrating the above JEC Clean/Sky Clean 80 mg/liter in other sewage or muddy water. Table 1 shows, as a comparative example, an example in which the above JEC clean/sky clean is used for river water and turbid water for tunnel construction in the same manner as above. As can be seen from this table, JEC Clean/Sky Clean effectively exhibits its performance both in the acidic region (river water) and in the alkaline region (turbid water in tunnel construction). Therefore, it is effective not only for sewage in ponds, but also for closed water environments where river sewage and construction muddy water accumulate.

Figure 2006082875
Figure 2006082875

つぎに、ステップ２について説明する。
ステップ２では、「凝集分離剤を攪拌混合して生成された水中に浮遊する凝固汚泥２０を回収する。」こととしている。前述したように、一部の凝固汚泥５２は湖沼１０の底に沈殿するが、多くの凝固汚泥５２は水面に浮上するか、水中を漂う。湖沼１０の底に沈殿した凝固汚泥５２は湖沼１０に生息する魚の餌となるため、回収する必要はなく、水面および水中に浮遊する凝固汚泥２０のみを回収する。この水中に浮遊する凝固汚泥２０は網等で容易にすくい上げることができる。Next, step 2 will be described.
In Step 2, it is assumed that "the coagulated sludge 20 that is produced by stirring and mixing the coagulation-separating agent and that is floating in the water is collected." As described above, a part of the solidified sludge 52 is settled on the bottom of the lake 10, but most of the solidified sludge 52 floats on the water surface or floats in the water. The coagulated sludge 52 that has settled on the bottom of the lake 10 does not need to be recovered because it serves as a food for the fish that inhabit the lake 10, and only the coagulated sludge 20 that floats on the water surface and in the water is recovered. The coagulated sludge 20 floating in the water can be easily scooped up with a net or the like.

ステップ３では「回収した凝固汚泥２０に固化剤を添加して攪拌し、固化させる。」こととしている。本願発明で使用される固化剤は、多孔質のアッシュおよび水和化鉱物を含み、このアッシュの多孔質に有機質、臭気等が短時間で吸収され、水分を吸収したアッシュは固化剤成分の水和化鉱物による水和反応によって速やかにエトリンガイドが生成されて、土質は迅速に固化される。
固化された凝固汚泥２０は、ステップ４により廃棄処分される。In step 3, the solidifying agent is added to the recovered coagulated sludge 20 and stirred to solidify. The solidifying agent used in the present invention includes a porous ash and a hydrated mineral, organic matter, odor and the like are absorbed in the porous structure of this ash in a short time, and the ash which has absorbed water is water of the solidifying agent component. The hydration reaction of the hydrated minerals produces ethrin guides promptly, and the soil is rapidly solidified.
The solidified coagulated sludge 20 is discarded in step 4.

ここで、ステップ３で使用される固化剤について説明する。
前述のように、この固化剤は、凝固汚泥中の水分を吸水する多孔質のアッシュと吸水したアッシュに対して水和反応を生ぜしめる水和化鉱物とを含むものである。
本実施例においては、固化剤にジェック化学株式会社の商品名「ＪＥＣコート」／ミクニエコシステム株式会社の商品名「Ｍコート」を使用している。このＪＥＣコート／Ｍコートは、二酸化珪素、酸化アルミニウム、酸化第二鉄、酸化カルシウム、酸化マグネシウム、酸化チタン、酸化カリ、酸化ナトリウム、三酸化硫黄を成分としていて、処理後の凝固汚泥のＰＨ値を中性域に維持し、凝固汚泥の水分に溶け込んでいる臭気物質を成分中のポーラス面に吸収し、重金属系イオン等の有害物質も成分内部に封じ込めて再溶出を防止する。そして、これらの効果は、有機物質が存在していてもほとんど影響を受けることはない。
さらに、ステップ４として、この固化された凝固汚泥を埋め立て等に使用した場合には、上述の水和反応で生じた水和物が土粒子の鉱物などと反応(ポゾラン反応)し、より強固な処理地盤を結成する。そして、その形状は無数の粒子構造(多孔質粒子)をもち、また包囲したアッシュ及び土粒子の水分を飽和状態に保持する性質を持つため、透水性、保水性に優れ、自然の地盤の強度に近くなるという特性を有するとされている。Here, the solidifying agent used in step 3 will be described.
As described above, this solidifying agent contains a porous ash that absorbs water in the coagulated sludge and a hydrated mineral that causes a hydration reaction with respect to the absorbed ash.
In this example, the product name “JEC coat” of Jeck Chemical Co., Ltd./the product name “M coat” of Mikuni Ecosystem Co., Ltd. is used as the solidifying agent. This JEC coat/M coat contains silicon dioxide, aluminum oxide, ferric oxide, calcium oxide, magnesium oxide, titanium oxide, potassium oxide, sodium oxide, and sulfur trioxide as components, and the PH value of coagulated sludge after treatment Is maintained in the neutral range, odorous substances dissolved in the water of coagulated sludge are absorbed by the porous surface of the component, and harmful substances such as heavy metal ions are also contained inside the component to prevent re-elution. And these effects are hardly affected even if the organic substance is present.
Furthermore, in step 4, when the solidified coagulated sludge is used for landfilling, the hydrate produced by the hydration reaction described above reacts with the minerals of the soil particles (pozzolan reaction), resulting in a stronger solidity. Form a treated ground. And its shape has innumerable particle structure (porous particles), and because it has the property of keeping the moisture of the enclosed ash and soil particles in a saturated state, it is excellent in water permeability, water retention, strength of natural ground. It is said to have the property of becoming close to

ここで、固化剤「ＪＥＣコート」／「Ｍコート」の反応メカニズムについて、図７を基に説明する。図７において、符号５２２は凝固汚泥５２中の土粒子、符号５２４は凝固汚泥５２中の水分であり、符号５４はアッシュ、符号５６はエトリンガイドである。   Here, the reaction mechanism of the solidifying agent "JEC coat"/"M coat" will be described with reference to FIG. In FIG. 7, reference numeral 522 is soil particles in the coagulated sludge 52, reference numeral 524 is water in the coagulated sludge 52, reference numeral 54 is ash, and reference numeral 56 is an ethrin guide.

固化剤「ＪＥＣコート」／「Ｍコート」と凝固汚泥５２の化学反応は以下の順序によっておこなわれる。すなわち、
（１）凝固汚泥５２は有機質、有害物質、臭気を含んだ土粒子５２２と多量の水分５２４からなっている（図７（ａ））。
（２）この凝固汚泥５２に固化剤を所要量混入すると、多孔質のアッシュ５４に有機質、臭気、水分等が短時間で吸収される（図７（ｂ））。
（３）吸水したアッシュ５４は固化剤中の成分である水和化鉱物によって水和反応が起こり、速やかにエトリンガイド５６が生成される。エトリンガイド５６の生成は土質の含水比を低下させる等の働きがあるため、アッシュ５４と土粒子５２２に妨げられることなく進行する。エトリンガイド５６の結晶は針状結晶で、アッシュ５４と土粒子５２２とを包囲しながら土質を迅速に固化していく（図７（ｃ））。
（４）さらに、固化したアッシュ５４と土粒子５２２との混合物を埋め戻し土とともに埋め立て等に使用した場合には、上述の水和反応で生じた水和物が土粒子の鉱物等と反応し(ポゾラン反応)、より強固な処理地盤を結成する（図７（ｄ））。その形状は無数の粒子構造（多孔質粒子）をもち、また包囲したアッシュ５４および土粒子５２２の水分を飽和状態に保持する性質を持つため、透水性、保水性に優れ、自然の地盤の強度に近くなる。The chemical reaction between the solidifying agent "JEC coat"/"M coat" and the solidified sludge 52 is performed in the following order. That is,
(1) The coagulated sludge 52 is composed of soil particles 522 containing organic substances, harmful substances and odors and a large amount of water 524 (FIG. 7(a)).
(2) When a required amount of the solidifying agent is mixed in the coagulated sludge 52, organic substances, odors, water and the like are absorbed in the porous ash 54 in a short time (FIG. 7(b)).
(3) The absorbed ash 54 undergoes a hydration reaction due to the hydrated mineral, which is a component in the solidifying agent, and the ethrin guide 56 is promptly produced. Since the generation of the ethrin guide 56 has a function of lowering the water content ratio of the soil, it proceeds without being hindered by the ash 54 and the soil particles 522. The crystal of the ethrin guide 56 is a needle-shaped crystal, and the soil is rapidly solidified while surrounding the ash 54 and the soil particles 522 (FIG. 7(c)).
(4) Furthermore, when the mixture of the solidified ash 54 and the soil particles 522 is used for landfill together with the backfill soil, the hydrate generated by the above hydration reaction reacts with the minerals of the soil particles. (Pozzolan reaction), forming a stronger treated ground (Fig. 7(d)). Its shape has innumerable particle structures (porous particles), and because it has the property of keeping the moisture of the enclosed ash 54 and soil particles 522 in a saturated state, it has excellent water permeability and water retention, and the strength of the natural ground. Get closer to.

また、ＪＥＣコート／Ｍコートを他の凝固汚泥において実証した結果を、比較例として表２に示す。表２は、比較例として、上記ＪＥＣコート／Ｍコートを前記同様にして、重金属（ｐｂ：鉛）に汚染された土壌に使用した場合の例を示すものである。この表から解るように、１５，０００ｍｇ／ｋｇのｐｂを含有する重金属汚染土壌の場合に、ＪＥＣコート／Ｍコートを使用しない場合は、ｐｂ溶出量は０．１３ｍｇ／ｌであり、ＰＨは５．６の酸性を示すのに対し、ＪＥＣコート／Ｍコートを所定量添加した場合には、ｐｂ溶出量は０．００５ｍｇ／ｌ以下であり、ＰＨも略中性を示している。したがって、ＪＥＣコート／Ｍコートで処理した凝固汚泥は、廃棄処分に適したものとなる。   Further, the results of demonstrating the JEC coat/M coat in other coagulated sludge are shown in Table 2 as a comparative example. Table 2 shows, as a comparative example, the case where the above-mentioned JEC coat/M coat is used for soil contaminated with heavy metal (pb: lead) in the same manner as described above. As can be seen from this table, in the case of heavy metal-contaminated soil containing 15,000 mg/kg of pb, the pb elution amount was 0.13 mg/l and the PH was 5 when the JEC coat/M coat was not used. In contrast to the acidity of 0.6, when a predetermined amount of JEC coat/M coat is added, the pb elution amount is 0.005 mg/l or less, and PH also shows almost neutrality. Therefore, the coagulated sludge treated with JEC coat/M coat is suitable for disposal.

Figure 2006082875
Figure 2006082875

【０００３】
【特許文献３】特許第３３６００７５号公報
【発明の開示】
【発明が解決しようとする課題】
［０００９］
しかしながら、特開２００１−２２４９０７号公報に開示の技術は、コンパクト化を図ったとはいっても、数人で持ち運ぶことができるほどではなく、装置も比較的大掛かりなものである。また、特開２００４−２９８８１７号公報に開示の技術や特許第３３６００７５号公報に開示の技術は、湖沼の自浄作用に期待した技術であって、自浄作用を補助する効果はあっても即効性にかける。
［００１０］
そこで、本願発明は、構成が簡単で、数人で持ち運ぶことができる携帯性に優れ、即効的に湖沼の水質浄化を極めて効率的に果たすことのできる水質浄化システム及び水質浄化方法を提供することを目的とする。
【課題を解決するための手段】
［００１１］
上記課題を解決するために、本願請求項２に係る水質浄化システムは、閉水域の水質を浄化する水質浄化システムであって、前記水質浄化システムは、前記閉水域に浮遊して前記閉水域内に水底と水面間を循環する定循環流域を生ぜしめる循環装置と、前記閉水域の水中浮遊懸濁物質を凝集分離すると同時に溶存汚濁物質を収着・固定・分離する所定の凝集分離剤を前記閉水域の水とを混合攪拌して前記閉水域に投入する混合攪拌装置とからなり、前記循環装置は前記閉水域の所望の水面上にあって、該循環装置の下方の水を吸引するポンプ及び／又は吸込み部と、吸引した水を水平方向に吐出する吐出部とからなり、前記混合攪拌装置は、混合用の水を吸入する混合水吸入部、前記混合用の水と前記凝集分離剤とを攪拌して混合液を生産する攪拌部、及び前記混合液を排出する混合液排出部とがこの順に水平方向に連設され、前記攪拌部の上部には水面上に開放されて前記凝集分離剤が投入される凝集分離剤投入口とから構成される装置本体と、前記閉水域の水中に吊設される水中ポンプと、及び前記装置本体と前記水中ポンプとを連結する送水管と、から構成され、前記凝集分離剤は鉱物性微量元素を含み酸性領域においては陽イオン、アルカリ領域においては[0003]
[Patent Document 3] Japanese Patent No. 3360075 [Disclosure of the Invention]
[Problems to be Solved by the Invention]
[0009]
However, although the technique disclosed in Japanese Patent Laid-Open No. 2001-224907 is designed to be compact, it cannot be carried by a few people, and the device is relatively large. Further, the technology disclosed in Japanese Patent Laid-Open No. 2004-298817 and the technology disclosed in Japanese Patent No. 3360075 are technologies expected for self-cleaning action of lakes and marshes, and even if they have an effect of assisting the self-cleaning action, they are immediately effective. Call.
[0010]
Therefore, the present invention provides a water purification system and a water purification method that have a simple configuration, are excellent in portability that can be carried by several people, and can immediately and extremely efficiently purify water in lakes. With the goal.
[Means for Solving the Problems]
[0011]
In order to solve the above-mentioned subject, the water purification system according to claim 2 of the present application is a water purification system for purifying water quality in a closed water region, wherein the water purification system floats in the closed water region and is in the closed water region. In addition, a circulation device that creates a constant circulation basin that circulates between the water bottom and the surface of the water, and a predetermined flocculating/separating agent that sorbs/fixes/separates dissolved pollutants at the same time as flocculating and separating suspended solids in water in the closed water And a mixing and stirring device for mixing and stirring water in a closed water region into the closed water region, wherein the circulation device is on a desired water surface in the closed water region, and is a pump for sucking water below the circulation device. And/or a suction part, and a discharge part for discharging the sucked water in a horizontal direction. The mixing and stirring device is a mixed water suction part for sucking mixing water, the mixing water and the coagulation separating agent. And a mixed liquid discharge part for discharging the mixed liquid and the mixed liquid discharge part are connected in this order in the horizontal direction. An apparatus main body composed of a coagulant separating agent charging port into which a separating agent is charged, a submersible pump suspended in the water in the closed water region, and a water pipe connecting the apparatus main body and the submersible pump, The aggregating/separating agent contains mineral trace elements and is a cation in an acidic region, and in an alkaline region.

【０００４】
陰イオンとの間で両性のイオン交換能を有する天然鉱物の複合アルミナ・けい酸塩を主成分とすることを特徴とするものである。
そして、本願請求項３に係る水質浄化システムは、請求項２に記載の水質浄化システムであって、前記混合攪拌の前記装置本体は両端が開放された横倒パイプ形状を呈し、前記混合水吸入部の開放端の上部には、前記送水管の他端が連結される送水排出口が固着されていて、前記送水排出口から排出される前記混合用の水は前記混合液排出部の開放端に向けて吐出され、前記攪拌部には、前記送水排出口に対応する位置に前記混合用の水の吐出方向に直交するスリットが穿設された仕切り板が固着され、前記仕切り板の前記混合液排出部側には前記混合用の水の吐出方向に直交する第１の水流撹乱棒および第２の水流撹乱棒が所定の間隔をもって相互に直交するように固着されて前記攪拌部が形成され、前記仕切り板と前記第１の水流撹乱棒との間の上部には、その先端が水面上に開放されるパイプ状の前記凝集分離剤投入口が形成されている、ことを特徴とするものである。
さらに、本願請求項４に係る水質浄化方法は、請求項２または請求項３に記載の水質浄化システムにおいて、前記循環装置を所定時間前記閉水域内で稼働させて、前記閉水域内に前記凝集分離剤を攪拌混合して、前記閉水域中の懸濁物質に対し、５０〜３００ｍｇ／リットルの範囲内で投入することを特徴とするものである。
さらに、本願請求項５に係る水質浄化方法は、請求項４に記載の水質浄化方法であって、前記凝集分離剤を攪拌混合して生成された水中に浮遊する凝固汚泥は回収され、回収された前記凝固汚泥に固化剤が添加・攪拌され、前記固化剤は前記凝固汚泥中の水分を吸収する多孔質のアッシュを有し、吸水後の前記アッシュは前記固化剤成分の水和化鉱物の水和反応により、速やかにエトリンガイドが生成されて前記凝固汚泥が固化され、固化後の前記凝固汚泥は廃棄処分されることを特徴とするものである。
【発明の効果】[0004]
It is characterized in that the main component is a composite alumina/silicate of a natural mineral having an amphoteric ion exchange capacity with an anion.
The water purification system according to claim 3 of the present application is the water purification system according to claim 2, wherein the apparatus main body of the mixing and stirring has a laterally inverted pipe shape with both ends open, and the mixed water intake A water supply outlet connected to the other end of the water supply pipe is fixed to the upper part of the open end of the section, and the water for mixing discharged from the water supply outlet is the open end of the mixed liquid discharge section. A partition plate having a slit perpendicular to the discharge direction of the mixing water at a position corresponding to the water supply and discharge port is fixed to the stirring section, and the mixing of the partition plate is performed. A first water flow disturbing rod and a second water flow disturbing rod, which are orthogonal to the discharge direction of the mixing water, are fixed to the liquid discharge portion side so as to be orthogonal to each other at a predetermined interval to form the stirring portion. The pipe-shaped aggregating/separating agent inlet, the tip of which is opened above the water surface, is formed in an upper portion between the partition plate and the first water flow disturbing rod. Is.
Further, in the water purification method according to claim 4 of the present application, in the water purification system according to claim 2 or 3, the circulation device is operated in the closed water region for a predetermined time to cause the aggregation in the closed water region. It is characterized in that the separating agent is stirred and mixed, and is added within a range of 50 to 300 mg/liter with respect to the suspended substance in the closed water region.
Further, the water purification method according to claim 5 of the present application is the water purification method according to claim 4, wherein the coagulated sludge floating in the water generated by stirring and mixing the aggregation separating agent is collected and collected. A solidifying agent is added and stirred to the coagulated sludge, the solidifying agent has a porous ash that absorbs water in the coagulated sludge, and the ash after absorbing water is a hydrated mineral of the solidifying agent component. The hydration reaction rapidly produces an ethrin guide to solidify the coagulated sludge, and the coagulated sludge after solidification is discarded.
【The invention's effect】

Claims (5)

閉水域の水質を浄化する水質浄化システムであって、
前記水質浄化システムは、前記閉水域に浮遊して前記閉水域内に水底と水面間を循環する定循環流域を生ぜしめる循環装置と、
前記閉水域の水中浮遊懸濁物質を凝集分離すると同時に溶存汚濁物質を収着・固定・分離する所定の凝集分離剤を前記閉水域の水とを混合攪拌して前記閉水域に投入する混合攪拌装置とからなることを特徴とする水質浄化システム。A water purification system for purifying water quality in closed water areas,
The water purification system, a circulation device that floats in the closed water region and creates a constant circulation basin that circulates between the water bottom and the water surface in the closed water region,
Mixing and agitating a predetermined flocculating and separating agent that coagulates and separates suspended solids in water in the closed water area and at the same time adsorbs, fixes, and separates dissolved pollutants into the water in the closed water area A water purification system comprising a device. 前記循環装置は前記閉水域の所望の水面上にあって、該循環装置の下方の水を吸引するポンプ及び／又は吸込み部と、吸引した水を水平方向に吐出する吐出部とからなり、
前記混合攪拌装置は、混合用の水を吸入する混合水吸入部、前記混合用の水と前記凝集分離剤とを攪拌して混合液を生産する攪拌部、及び前記混合液を排出する混合液排出部とがこの順に水平方向に連設され、前記攪拌部の上部には水面上に開放されて前記凝集分離剤が投入される凝集分離剤投入口とから構成される装置本体と、前記閉水域の水中に吊設される水中ポンプと、及び前記装置本体と前記水中ポンプとを連結する送水管と、から構成され、
前記凝集分離剤は鉱物性微量元素を含み酸性領域においては陽イオン、アルカリ領域においては陰イオンとの間で両性のイオン交換能を有する天然鉱物の複合アルミナ・けい酸塩を主成分とすることを特徴とする請求項１に記載の水質浄化システム。The circulation device is on a desired water surface of the closed water region, and is composed of a pump and/or a suction part for sucking water below the circulation device, and a discharge part for discharging the sucked water in a horizontal direction,
The mixing and stirring device includes a mixed water suction unit for sucking mixing water, a stirring unit for stirring the mixing water and the coagulation separating agent to produce a mixed liquid, and a mixed liquid for discharging the mixed liquid. A discharge unit is horizontally provided in this order in a horizontal direction, an apparatus main body composed of an aggregating/separating agent inlet into which the aggregating/separating agent is introduced and which is opened above the water surface in the upper part of the agitating unit, and the closing unit. A submersible pump suspended in the water of the water area, and a water pipe connecting the apparatus body and the submersible pump,
The aggregating/separating agent contains, as a main component, a composite alumina/silicate of a natural mineral that contains a mineral trace element and has an amphoteric ion exchange capacity with a cation in an acidic region and an anion in an alkaline region. The water purification system according to claim 1. 前記混合攪拌の前記装置本体は両端が開放された横倒パイプ形状を呈し、
前記混合水吸入部の開放端の上部には、前記送水管の他端が連結される送水排出口が固着されていて、前記送水排出口から排出される前記混合用の水は前記混合液排出部の開放端に向けて吐出され、
前記攪拌部には、前記送水排出口に対応する位置に前記混合用の水の吐出方向に直交するスリットが穿設された仕切り板が固着され、前記仕切り板の前記混合液排出部側には前記混合用の水の吐出方向に直交する第１の水流撹乱棒および第２の水流撹乱棒が所定の間隔をもって相互に直交するように固着されて前記攪拌部が形成され、
前記仕切り板と前記第１の水流撹乱棒との間の上部には、その先端が水面上に開放されるパイプ状の前記凝集分離剤投入口が形成されている、ことを特徴とする請求項１または請求項２に記載の水質浄化システム。The apparatus main body of the mixing and stirring has a sideways pipe shape with both ends open,
A water supply outlet connected to the other end of the water supply pipe is fixed to the upper portion of the open end of the mixed water suction portion, and the mixing water discharged from the water supply outlet is discharged from the mixed liquid. Is discharged toward the open end of the part,
A partition plate, in which a slit orthogonal to the discharge direction of the water for mixing is formed at a position corresponding to the water discharge port, is fixed to the stirring unit, and the partition plate is provided on the mixed liquid discharge unit side. A first water flow disturbing rod and a second water flow disturbing rod orthogonal to the discharge direction of the mixing water are fixed to each other at a predetermined interval so as to be orthogonal to each other to form the stirring section,
The pipe-shaped aggregating/separating agent inlet, whose tip is open above the water surface, is formed in an upper portion between the partition plate and the first water flow disturbing rod. The water purification system according to claim 1 or claim 2. 請求項１ないし請求項３のいずれかに記載の水質浄化システムにおいて、
前記循環装置を所定時間前記閉水域内で稼働させて、前記閉水域内に前記凝集分離剤を攪拌混合して、前記閉水域中の懸濁物質に対し、５０〜３００ｍｇ／リットルの範囲内で投入することを特徴とする水質浄化方法。The water purification system according to any one of claims 1 to 3,
The circulating device is operated in the closed water area for a predetermined time, the aggregating and separating agent is stirred and mixed in the closed water area, and within a range of 50 to 300 mg/liter with respect to the suspended matter in the closed water area. Water purification method characterized by inputting. 前記凝集分離剤を攪拌混合して生成された水中に浮遊する凝固汚泥は回収され、
回収された前記凝固汚泥に固化剤が添加・攪拌され、
前記固化剤は前記凝固汚泥中の水分を吸収する多孔質のアッシュを有し、吸水後の前記アッシュは前記固化剤成分の水和化鉱物の水和反応により、速やかにエトリンガイドが生成されて前記凝固汚泥が固化され、
固化後の前記凝固汚泥は廃棄処分されることを特徴とする請求項４に記載の水質浄化方法または請求項１ないし３のいずれかに記載の水質浄化システム。
Coagulated sludge floating in water produced by stirring and mixing the aggregating and separating agent is recovered,
A solidifying agent is added to the recovered coagulated sludge and stirred,
The solidifying agent has a porous ash that absorbs water in the coagulated sludge, and the ash after absorbing water is hydrated by the hydrated mineral of the solidifying agent component to rapidly generate an ethrin guide. The solidified sludge is solidified,
5. The water purification method according to claim 4, or the water purification system according to any one of claims 1 to 3, wherein the solidified sludge after solidification is discarded.
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