JP2726376B2 - Method for producing foreign matter adsorbent and carrier of suitable bacteria - Google Patents
Method for producing foreign matter adsorbent and carrier of suitable bacteriaInfo
- Publication number
- JP2726376B2 JP2726376B2 JP5218113A JP21811393A JP2726376B2 JP 2726376 B2 JP2726376 B2 JP 2726376B2 JP 5218113 A JP5218113 A JP 5218113A JP 21811393 A JP21811393 A JP 21811393A JP 2726376 B2 JP2726376 B2 JP 2726376B2
- Authority
- JP
- Japan
- Prior art keywords
- carrier
- foam
- adsorbent
- foreign matter
- producing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- 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
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Biological Treatment Of Waste Water (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、海洋、河川、湖沼、工
場排水等、処理を必要とするあらゆる異物含有液に含ま
れる異物を回収または除去するために用いるのに適した
異物吸着材及び異物を分解するための適性菌の担持体の
製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foreign matter adsorbent suitable for use in collecting or removing foreign matter contained in any foreign matter-containing liquid requiring treatment, such as oceans, rivers, lakes and marshes, and industrial wastewater. The present invention relates to a method for producing a carrier of suitable bacteria for decomposing foreign substances.
【０００２】[0002]
【従来の技術】従来、例えば富栄養化された海洋、河
川、湖沼或いは工場排水は、赤潮、アオコ等の種々の異
常発生が激しく、その除去のために塩素による除藻と、
砂、アンスラサイトによる濾過とを併用するなどしてい
た。2. Description of the Related Art Conventionally, for example, eutrophic oceans, rivers, lakes, or industrial wastewaters are subject to severe abnormalities such as red tides and blue-green algae.
Sand and filtration with anthracite were used in combination.
【０００３】これらの藻類は、アオコに代表されるよう
に、粒子径が２〜５ミクロンと微細で、通常は群落をな
してブロックが大きいが、ポンプアップすると個々の粒
子に戻り、砂やアンスラサイトでは濾過が難しい。従っ
て、藻類を塩素の増量によって殺藻せざるを得ず、結果
的に発ガン性の強いトリハロメタンが生成される。ま
た、富栄養化された海洋、湖沼、河川では、ＢＯＤ、Ｃ
ＯＤ、ＳＳ等指標要因物質の除去は凝集沈澱や、活性
炭、砂濾過の併用によって、或る程度までは達成できる
が、大量の水を高速で高性能で安価に処理することは難
しい。[0003] These algae, as typified by algae, have a fine particle size of 2 to 5 microns, and usually form a community and have a large block. However, when pumped up, they return to individual particles, and sand and anthra Filtration is difficult at the site. Therefore, algae must be killed by increasing the amount of chlorine, and as a result, trihalomethane having strong carcinogenicity is generated. In eutrophic oceans, lakes and rivers, BOD, C
The removal of indicator factors such as OD and SS can be achieved to some extent by coagulation sedimentation, combined use of activated carbon and sand filtration, but it is difficult to treat a large amount of water at high speed with high performance at low cost.
【０００４】そこで、嫌気処理として、温度を高めて発
酵促進させる方法、上向流を用いる方法（スラッジグラ
ンケート法：ＶＡＳＢ法）等がある。[0004] As the anaerobic treatment, there are a method of increasing the temperature to promote fermentation, a method of using an upward flow (sludge granate method: VASB method), and the like.
【０００５】上記各方法のうち、嫌気処理で温度を高め
て発酵させる方法は、下水スラッジや有害廃棄物のよう
に固形物の多い廃棄物の処理には有効であるが、廃水の
処理のような場合にはランニングコストがかさみ得策で
はない。また、ＶＡＳＢ法はバクテリアの自己造粒を利
用して接触効率を高める方法として有効であるが、より
効率を高めるためのＳＳ濃縮構造（汚泥造粒部）がな
く、上部の生物膜濾過の性能の付加もないため、多くの
滞留時間を要し、設備が過大となる欠点がある。[0005] Among the above methods, the method of fermenting by raising the temperature by anaerobic treatment is effective for treating wastes containing a large amount of solids such as sewage sludge and hazardous wastes. In such cases, running costs are high and it is not a good idea. In addition, the VASB method is effective as a method for increasing the contact efficiency by utilizing the self-granulation of bacteria, but there is no SS concentration structure (sludge granulation part) for further increasing the efficiency, and the performance of the upper biofilm filtration is improved. Since there is no addition, there is a drawback that a lot of residence time is required and the equipment becomes excessively large.
【０００６】[0006]
【発明が解決しようとする課題】このような従来技術の
問題点に鑑み、本発明の主な目的は、海洋、河川、湖
沼、工場排水等、処理を必要とするあらゆる母液を効率
的かつ効果的に浄化可能な異物吸着材、適性菌の担持体
または商品製造過程に於ける金属イオン交換後の非鉄金
属等を回収する有価物の回収材の製造方法を提供するこ
とにある。SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, a main object of the present invention is to efficiently and effectively treat any mother liquor requiring treatment, such as oceans, rivers, lakes and marshes, and factory effluents. It is an object of the present invention to provide a method for manufacturing a valuable adsorbent for recovering a non-ferrous metal or the like after a metal ion exchange in a manufacturing process of a foreign substance adsorbent which can be purified, a carrier of suitable bacteria or a metal ion exchange in a product manufacturing process.
【０００７】[0007]
【課題を解決するための手段】上述した目的は本発明に
よれば、樹脂発泡体からなる異物吸着材並びに適性菌の
担持体の製造方法であって、原料樹脂材に発泡剤を添加
して低圧で混練しつつ独立発泡させて内部に独立気泡を
有する発泡体を形成する過程と、該過程で得られた発泡
体を大きさ及び形状の不揃いな多数の小片に破砕する過
程とを有することを特徴とする異物吸着材並びに適性菌
の担持体の製造方法を提供することにより達成される。
これにより得られた異物吸着材並びに適性菌の担持体
は、原料樹脂材の比重や独立気泡の発生量を適宜調整す
ることにより、見かけ比重または真比重が回収または除
去を必要とする異物が存在する母液の比重以下となり、
この母液に浮遊可能となる。According to the present invention, there is provided a method for producing a foreign material adsorbent comprising a resin foam and a carrier for a suitable bacterium, wherein a foaming agent is added to the raw resin material. A process of forming a foam having closed cells inside by independently foaming while kneading at a low pressure; and a process of crushing the foam obtained in the process into a number of small pieces having irregular sizes and shapes. The present invention is attained by providing a method for producing a foreign matter adsorbent and a carrier of a suitable bacterium characterized by the following.
As a result, the apparent specific gravity or the true specific gravity of the foreign material adsorbent and the carrier of the suitable bacterium that need to be collected or removed by appropriately adjusting the specific gravity of the raw material resin material and the amount of generated closed cells are present. Below the specific gravity of the mother liquor
It can float in this mother liquor.
【０００８】[0008]
【作用】このようにすれば、例えばこの吸着材を容器の
上部に浮遊させ、最下部から上部に向けて異物含有液を
流すことによって異物を発泡体に吸着し、除去すること
ができる。また、予め微生物（適性菌）を担持させた担
持体を容器の上部に浮遊させ、最下部から上部に向けて
異物含有液を流すことによって、微生物の自己造粒が容
易であることは云うまでもなく、担持体が浮遊している
ことから異物含有液が最下部から上部微生物層（浮遊
層）にいたる間にＳＳの濃縮ゾーンが形成され、余剰汚
泥の造粒沈降を促すことができる。更に、発泡体を破砕
してなる吸着材または各担持体は多孔質多面体であるた
め、表面積が大きいことから浮遊層中に於ける異物含有
液との接触面積の向上が計れ、かつ担持体の場合、硝化
菌（適性菌）の増殖が促進され、即ち有機物の分解、硝
化が促進され、異物含有液の浄化能力を高めることがで
きる。また、従来法のように前処理としての加圧浮上
や、凝集沈澱処理を行う必要がなく、高濃度の異物含有
液のまま処理することができ、更に例えば水道水であれ
ば塩素処理工程を削減することができる。In this way, for example, the adsorbent is floated on the upper part of the container, and the foreign substance can be adsorbed on the foam by removing the foreign substance-containing liquid from the lowermost part toward the upper part and removed. In addition, by suspending a carrier pre-loaded with microorganisms (suitable bacteria) in the upper part of the container and flowing a foreign substance-containing liquid from the lowermost part to the upper part, it can be said that the self-granulation of the microorganisms is easy. In addition, since the carrier is floating, an SS concentration zone is formed while the foreign substance-containing liquid flows from the bottom to the upper microbial layer (floating layer), and it is possible to promote granulation and settling of excess sludge. Furthermore, since the adsorbent or each carrier obtained by crushing the foam is a porous polyhedron, the surface area is large, so that the contact area with the liquid containing foreign matter in the floating layer can be improved, and In this case, the growth of nitrifying bacteria (suitable bacteria) is promoted, that is, the decomposition and nitrification of organic substances are promoted, and the ability to purify the liquid containing foreign substances can be enhanced. In addition, there is no need to perform pressure flotation or coagulation precipitation as a pretreatment as in the conventional method, and it is possible to perform treatment as it is with a high-concentration foreign matter-containing liquid. Can be reduced.
【０００９】ここで、吸着材または担持体の各気泡が連
続気泡であると、吸着材または担持体に水道が形成さ
れ、吸着材の場合には吸着した異物が再び母液に流され
る心配があり、担持体の場合には適性菌を長期に亘り担
持、増殖し難いことが考えられるが、本発明吸着材また
は担持体は、その各気泡が連続せず、吸着材及び担持体
に水道が形成されない。従って、吸着材の場合には吸着
した異物が再び母液に流されるようなことがなく、担持
体の場合には適性菌を著気に亘り担持、増殖し易くな
る。また、異物の回収または除去効率に関し、独立発泡
による独立気泡を有する発泡体の表面積は連続発泡によ
る連続気泡を有する発泡体に比較して小さいことが考え
られるが、上記したように連続気泡を有する発泡体はそ
の内部に水道が形成されることからその部分は吸着及び
適性菌との接触が行われ難い。従って、異物の吸着また
は担持体に担持された適性菌との接触のために有効な表
面積（母液との接触面積）は、独立気泡を有する発泡体
（本発明吸着材または担持体）の方が連続気泡を有する
発泡体に比較して大きくなる。また、この吸着材または
適性菌の担持体が、上記発泡体を破砕することにより得
られる形成された大きさ及び形状の不揃いな多数の小片
からなることにより、母液との接触効率が向上する。Here, if each bubble of the adsorbent or the carrier is a continuous cell, water is formed in the adsorbent or the carrier, and in the case of the adsorbent, there is a concern that the adsorbed foreign matter may flow into the mother liquor again. In the case of a carrier, it is considered that it is difficult to carry and multiply suitable bacteria for a long period of time. However, in the adsorbent or carrier of the present invention, each air bubble is not continuous, and water is formed in the adsorbent and the carrier. Not done. Therefore, in the case of the adsorbent, the adsorbed foreign matter does not flow into the mother liquor again, and in the case of the carrier, the suitable bacteria are easily carried and multiplied significantly. Regarding the efficiency of collecting or removing foreign matter, it is considered that the surface area of the foam having closed cells formed by closed cells is smaller than that of the foam having open cells formed by continuous expansion. Since water is formed inside the foam, it is difficult for the foam to be adsorbed and contacted with suitable bacteria. Therefore, the effective surface area (the contact area with the mother liquor) for adsorbing foreign substances or contacting with the suitable bacteria carried on the carrier is higher for the foam having closed cells (the adsorbent or carrier of the present invention). It is larger than a foam having open cells. Further, the efficiency of contact with the mother liquor is improved because the adsorbent or the carrier of suitable bacteria is composed of a large number of small pieces of irregular size and shape obtained by crushing the foam.
【００１０】そして、このような特性を有する吸着材ま
たは担持体は、原料樹脂材を低圧で混練しつつ独立発泡
させて得られた発泡体を破砕することにより得られる。
これによれば、低圧で混練することにより、混練中の発
泡が抑制されず、しかも発泡剤を含む原料樹脂材が十分
に混練されていない状態から発泡が開始するため、径が
１０μｍ〜１０ｍｍの大きさの不揃いな独立気泡を得る
ことができる。そして、この大きさの不揃いな独立気泡
を有する発泡体を破砕することにより、径が０．１ｍｍ
〜３００ｍｍといったように広い範囲に渡って大きさが
不揃いで、かつ形状も不揃いで、接触効率に優れた吸着
材または担持体を容易に製造することができる。特に、
原料樹脂材に天然多孔質材を混入した上で混練するよう
にすると、原料樹脂材と天然多孔質材とが低圧で混練さ
れる際に天然多孔質材内部の空洞が圧潰することなく樹
脂で密封されて独立気泡化するため、内部に独立気泡を
形成することができ、原料樹脂材や発泡剤の使用量を削
減することができる。そして、この天然多孔質材は、の
こぎりくず、わらくず、穀物のもみがら、木片、繊維小
片及び不織布小片といったもので良く、廃物利用によっ
て安価に得ることができるため、独立気泡を有する樹脂
発泡体を低コストに製造することが可能となる。An adsorbent or a carrier having such characteristics can be obtained by crushing a foam obtained by independently foaming a raw resin material while kneading it at a low pressure.
According to this, by kneading at a low pressure, foaming during kneading is not suppressed, and foaming starts from a state in which the raw material resin material including the foaming agent is not sufficiently kneaded, so that the diameter is 10 μm to 10 mm. Closed cells having irregular sizes can be obtained. Then, by crushing the foam having irregular closed cells of this size, the diameter is 0.1 mm.
An adsorbent or a carrier having excellent contact efficiency can be easily manufactured with irregular sizes and irregular shapes over a wide range such as 300 mm. Especially,
When the raw resin material is mixed with the natural porous material and then kneaded, when the raw resin material and the natural porous material are kneaded at low pressure, the cavity inside the natural porous material is not crushed and the resin is used. Since the cells are sealed to form closed cells, closed cells can be formed inside, and the amount of the raw material resin material and the amount of the foaming agent can be reduced. And, this natural porous material may be sawdust, sawdust, grain hulls, wood chips, fiber chips and non-woven cloth chips, and can be obtained at low cost by using waste materials. Can be manufactured at low cost.
【００１１】[0011]
【実施例】以下、本発明の好適実施例を添付の図面につ
いて詳しく説明する。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a preferred embodiment of the present invention.
【００１２】図１は、本発明が適用された第１の実施例
を示す嫌気性菌による処理装置を模式的に示すダイヤグ
ラム図である。図に於て上部が開口する容器１内には抑
止板１３が設けられ、その下部に微生物（適性菌）を担
持する見かけ比重または真比重が除去を必要とする異物
が存在する母液比重以下の担持体２ａ（浮遊充填材）を
充填し、浮遊層２を形成している。また、容器１の下部
には海洋、河川、湖沼、工場排水等、処理を必要とする
母液を容器１内に流し込むべく導入管３を介して散水ノ
ズル４が設けられている。容器１内の浮遊層２の上部に
は集水管５が設けられ、この処理された水を集水管５に
て集めて排水管６から排出するようになっている。加え
て、容器１の最下部には排出弁７ａを有する余剰汚泥抜
き管７が設けられ、容器１の中層部には逆洗用のノズル
８が設けられている。FIG. 1 is a diagram schematically showing an apparatus for treating with anaerobic bacteria according to a first embodiment to which the present invention is applied. In the figure, a deterrent plate 13 is provided in a container 1 having an open upper portion, and an apparent specific gravity or a true specific gravity carrying microorganisms (suitable bacteria) is lower than the specific gravity of a mother liquor below which foreign matter requiring removal exists. The carrier 2 a (floating filler) is filled to form the floating layer 2. In addition, a watering nozzle 4 is provided below the container 1 via an introduction pipe 3 so that mother liquor requiring treatment, such as ocean, river, lake, or factory drainage, flows into the container 1. A water collecting pipe 5 is provided above the floating layer 2 in the container 1, and the treated water is collected by the water collecting pipe 5 and discharged from the drain pipe 6. In addition, an excess sludge drain pipe 7 having a discharge valve 7a is provided at the lowermost portion of the container 1, and a nozzle 8 for backwashing is provided at a middle portion of the container 1.
【００１３】ここで、担持体２ａは重量％で結晶性ポリ
プロピレン８６％、非結晶性ポリプロピレン８％の合成
樹脂に発泡剤６％を加え、気泡の径が１０μｍ〜１０ｍ
ｍとなるように独立発泡させ、その発泡体を破砕するこ
とにより得られた０．１ｍｍ〜３００ｍｍの径の多面体
の小片からなり、このような各種サイズの担持体２ａを
多数浮遊させることにより浮遊層２をなしている。尚、
この担持体２ａは異物を吸着する吸着材もなしている。The carrier 2a has a foaming agent of 6% added to a synthetic resin of 86% by weight of crystalline polypropylene and 8% of non-crystalline polypropylene, and has a diameter of bubbles of 10 μm to 10 m.
m, and is made of small pieces of a polyhedron having a diameter of 0.1 mm to 300 mm obtained by crushing the foam, and floated by floating a large number of such supports 2a of various sizes. Layer 2 is formed. still,
The carrier 2a also serves as an adsorbent for adsorbing foreign matter.
【００１４】尚、本実施例では図示したように防臭とメ
タンガスなどの廃ガスの回収を考えて容器１を蓋付きと
し、その頂上部にガス回収管９を設けた。このガス回収
管９には水が溜まったＵベントが設けられている。尚、
実際には容器１の上部を開口したままでも良い。In this embodiment, as shown in the figure, the container 1 is provided with a lid and a gas recovery pipe 9 is provided at the top in consideration of deodorization and recovery of waste gas such as methane gas. The gas recovery pipe 9 is provided with a U vent in which water is stored. still,
Actually, the upper part of the container 1 may be left open.
【００１５】容器１内の散水ノズル４の下部には余剰汚
泥及び微生物塊からなる嫌気造粒汚泥層１０が形成さ
れ、散水ノズル４と浮遊層２との間には汚泥造粒帯１１
が形成されるようになる。尚、符号１９は担持体２ａが
下部に流出することを防止するための吸着材または担持
体用分級板である。An anaerobic granulated sludge layer 10 composed of surplus sludge and microbial clumps is formed below the water spray nozzle 4 in the container 1, and a sludge granulation zone 11 is provided between the water spray nozzle 4 and the floating layer 2.
Is formed. Reference numeral 19 denotes an adsorbent or a classifying plate for the carrier for preventing the carrier 2a from flowing down.
【００１６】原水（異物含有液）を導入管３を介して散
水ノズル４より容器１内の下部から上に向けて流し込む
と、余剰汚泥及び微生物塊からなる嫌気造粒汚泥層１
０、汚泥造粒帯１１を通過して、浮遊層２に至り、この
浮遊層２を通過して水面より集水管５にて集められて排
水管６から排出させる。ここで、汚泥造粒帯１１水滞部
を通過する間にＳＳ同士のぶつかり合いによる粗粒化が
促進され、また微生物により自己造粒されて嫌気造粒汚
泥層１０が形成され、異物含有液は嫌気造粒汚泥層１０
により濾過された後、汚泥造粒帯１１を通過して浮遊層
２の各担持体（吸着材）２ａ及びその内部に担持された
微生物により二重に濾過され、その間に有機物の微生物
分解と硝化とが行われる。When raw water (liquid containing foreign matter) is poured upward from the lower part of the vessel 1 from the watering nozzle 4 through the introduction pipe 3, the anaerobic granulated sludge layer 1 consisting of excess sludge and microbial clumps is formed.
0, it passes through the sludge granulation zone 11, reaches the floating layer 2, passes through the floating layer 2, is collected from the water surface by the water collecting pipe 5, and is discharged from the drain pipe 6. Here, while passing through the sludge granulation zone 11 and the water stagnation section, coarsening by collision of SSs is promoted, and the microorganisms are self-granulated to form the anaerobic granulation sludge layer 10 and the foreign substance-containing liquid. Is the anaerobic granulated sludge layer 10
After passing through the sludge granulation zone 11, each carrier (adsorbent) 2a of the floating layer 2 and the microorganisms carried therein are double-filtered, during which the microorganisms are decomposed and nitrified by organic substances. Is performed.
【００１７】次に、上記担持体２ａの製造手順について
説明する。図２は、この担持体２ａの発泡体を成形する
ためのガス抜き開口部付押出し混練器８１の断面図であ
る。このガス抜き開口部付押出し混練器８１は、シリン
ダ８２と、その内部に設けられたスクリュー８３と、原
料を投入するためにシリンダ８２の基端に設けられたホ
ッパ８４とを有している。シリンダ８２の中間部には開
閉可能な蓋８５が取付けられたベント８２ａが設けられ
ている。また、シリンダ８２外周の適所にはヒータ８６
が設けられ、シリンダ８２内で原料が発泡し得る所望の
温度にシリンダ８２を加熱し得るようになっている。こ
こで、シリンダ８２の先端側は単に開口しているのみで
あり、ダイスなどは設けられていない。従って、このガ
ス抜き開口部付押出し混練器８１に原料を投入すると、
比較的低圧でシリンダ８２の開口８２ｂから製品が押出
されることとなる。尚、開口８２ｂの下方には冷却水の
溜められたプール８７が設けられ、開口８２ｂから押出
された製品を冷却するようになっている。Next, the procedure for manufacturing the carrier 2a will be described. FIG. 2 is a cross-sectional view of an extrusion kneader 81 with a gas vent opening for forming a foam of the carrier 2a. The extrusion kneader 81 with a gas vent opening has a cylinder 82, a screw 83 provided therein, and a hopper 84 provided at a base end of the cylinder 82 for charging a raw material. A vent 82 a having an openable / closable lid 85 is provided at an intermediate portion of the cylinder 82. A heater 86 is provided at an appropriate position on the outer periphery of the cylinder 82.
Is provided so that the cylinder 82 can be heated to a desired temperature at which the raw material can foam in the cylinder 82. Here, the distal end side of the cylinder 82 is merely open, and no die or the like is provided. Therefore, when the raw material is put into the extruder kneader 81 with the gas vent opening,
The product is extruded from the opening 82b of the cylinder 82 at a relatively low pressure. A pool 87 for storing cooling water is provided below the opening 82b to cool the product extruded from the opening 82b.
【００１８】上記したように重量％で結晶性ポリプロピ
レン８６％、非結晶性ポリプロピレン８％の合成樹脂に
発泡剤６％を加えた原料を、ホッパ８４からガス抜き開
口部付押出し混練器８１に投入すると、低圧でシリンダ
８２内をスクリュ８３により混練されつつ流動する。こ
のとき、上記原料はヒータ８６により加熱され、また圧
力を調整されて気泡の径が１０μｍ〜１０ｍｍとなるよ
うに発泡する。この発泡は低圧で混練しつつ行われるこ
とから独立発泡となり、原料内の気泡が独立気泡とな
る。As described above, a raw material obtained by adding a foaming agent 6% to a synthetic resin of 86% by weight of crystalline polypropylene and 8% of non-crystalline polypropylene is put into an extrusion kneader 81 with a gas vent opening from a hopper 84. Then, the fluid flows while being kneaded by the screw 83 in the cylinder 82 at a low pressure. At this time, the raw material is heated by the heater 86 and the pressure is adjusted to foam the foam so that the diameter of the bubble becomes 10 μm to 10 mm. Since the foaming is performed while kneading at a low pressure, the foam becomes closed foam, and the bubbles in the raw material become closed bubbles.
【００１９】このように独立発泡した製品は開口８２ｂ
から押出され、プール８７にて冷却される。そして、図
示されない公知のクラッシャにより破砕され、０．１ｍ
ｍ〜３００ｍｍの径の多面体の小片からなる吸着材が完
成する。これを適性菌の担持体とするには、適性菌の存
在する溶液に漬けるなどしてこの適性菌を担持させれば
良い。The product thus foamed independently has an opening 82b.
And cooled in the pool 87. Then, it is crushed by a known crusher (not shown),
An adsorbent composed of small pieces of a polyhedron having a diameter of m to 300 mm is completed. In order to make this a carrier of suitable bacteria, the suitable bacteria may be supported by immersing in a solution in which the suitable bacteria are present.
【００２０】尚、本実施例では原料として結晶性ポリプ
ロピレン８６％、非結晶性ポリプロピレン８％の合成樹
脂に発泡剤６％を加えたものを用いたが、樹脂としてポ
リエチレン及び非結晶性ポリエチレンなどを用いても良
く、また、除去を必要とする異物が存在する排水の内容
成分によって最も適した樹脂素材を使用し、発泡させて
発泡体として用いても良い。更に、所望の割合でこぎり
くず、わらくず、穀物のもみがら、木片、繊維小片及び
不織布小片などの天然多孔質材を混入しても良い。この
場合、或る程度の気泡の確保が可能であると共に廃物利
用によるコスト軽減が期待できる。また、本実施例では
ガス抜き開口部付押出し混練器内にて独立発泡させた
が、通常の容器内に原料を投入し、加熱しつつ混練して
も同様な発泡体が得られる。In this embodiment, a synthetic resin of 86% of crystalline polypropylene and 8% of non-crystalline polypropylene to which 6% of a foaming agent is added is used as a raw material, but polyethylene and non-crystalline polyethylene are used as the resin. It may be used, or a resin material that is most suitable for the content component of the wastewater containing foreign matter that needs to be removed may be used and foamed to be used as a foam. Furthermore, natural porous materials such as sawdust, rags, grain husks, wood chips, fiber chips and nonwoven cloth chips may be mixed in a desired ratio. In this case, it is possible to secure a certain amount of air bubbles, and it can be expected to reduce costs by utilizing wastes. In this example, the foam was independently foamed in an extrusion kneader with a gas vent opening. However, a similar foam can be obtained by putting the raw materials into a usual container and kneading the mixture while heating.
【００２１】図３は、本発明が適用された第２の実施例
を示す嫌気性菌による処理装置を模式的に示す図であ
る。本実施に於ける嫌気性菌による処理装置本体は第１
の実施例と同様であるが、その排水管６が後段の脱窒槽
２１内の下側散水ノズル２４に接続されている。また、
排水管６の中間部に注入管６ａを接続し、排水管６内に
処理水に微生物の増殖栄養剤を注入するようになってい
る。脱窒槽２１には、浮遊層２と同様に微生物（適性
菌）を担持する見かけ比重または真比重が除去を必要と
する母液比重以下の多数の担持体２２ａを浮遊させてな
る脱窒層２２が設けられている。脱窒槽２１の脱窒層２
２の上部には集水管２５及び該集水管２５に接続された
排水管２６が設けられている。尚、脱窒槽２１は、その
上端から窒素ガスを外部に排出するようになっている。FIG. 3 is a diagram schematically showing an apparatus for treating with anaerobic bacteria according to a second embodiment of the present invention. In this embodiment, the anaerobic bacterium treatment device main body is the first
However, the drain pipe 6 is connected to the lower sprinkling nozzle 24 in the denitrification tank 21 at the subsequent stage. Also,
An injection pipe 6 a is connected to an intermediate portion of the drain pipe 6, and the growth nutrient of microorganisms is injected into the treated water in the drain pipe 6. The denitrification tank 21 has a denitrification layer 22 formed by floating a large number of carriers 22a having an apparent specific gravity or a true specific gravity equal to or less than the mother liquor specific gravity which needs to be removed, which supports microorganisms (suitable bacteria), like the floating layer 2. Is provided. Denitrification layer 2 of denitrification tank 21
A water collecting pipe 25 and a drainage pipe 26 connected to the water collecting pipe 25 are provided at an upper part of 2. The denitrification tank 21 discharges nitrogen gas from its upper end to the outside.
【００２２】排水管２６はその後段の好気槽３１内の下
側散水ノズル３４に接続されている。この好気槽３１に
は、浮遊層２と同様に微生物（適性菌）を担持する見か
け比重または真比重が除去を必要とする異物が存在する
母液比重以下の多数の担持体３２ａを浮遊させてなる好
気層３２が設けられている。好気槽３１の好気層３２の
上部には集水管３５及び該集水管３５に接続された排水
管３６が設けられている。The drain pipe 26 is connected to a lower sprinkling nozzle 34 in the aerobic tank 31 at the subsequent stage. In the aerobic tank 31, as in the case of the floating layer 2, a large number of carriers 32 a having the apparent specific gravity or the true specific gravity that is lower than the mother liquor specific gravity in which foreign substances that need to be removed are present. An aerobic layer 32 is provided. A water collecting pipe 35 and a drain pipe 36 connected to the water collecting pipe 35 are provided above the aerobic layer 32 of the aerobic tank 31.
【００２３】本実施例によれば、容器１にて嫌気性菌に
より処理され、硝化された異物含有液中の窒素が脱窒、
脱燐処理されて外部に排出されるようになる。それ以外
の構成は第１の実施例と同様である。According to this embodiment, nitrogen in the foreign matter-containing liquid which has been treated with anaerobic bacteria in the container 1 and has been nitrified is denitrified.
It is dephosphorized and discharged to the outside. Other configurations are the same as in the first embodiment.
【００２４】図４は、本発明が適用された第３の実施例
を示す嫌気性菌による処理装置を模式的に示す図であ
る。本実施の構成は概ね第２の実施例と同様であるが、
好気槽３１からの排水管３６に戻し管４０が接続され、
処理水の一部を導入管３に循環させるようになってい
る。これにより原水のＢＯＤ（指標要因物質）を活用し
て微生物を増殖させ、脱窒を促進するようになってい
る。それ以外の構成は第２の実施例と同様である。FIG. 4 is a view schematically showing an apparatus for treating anaerobic bacteria according to a third embodiment to which the present invention is applied. The configuration of this embodiment is substantially the same as that of the second embodiment,
A return pipe 40 is connected to a drain pipe 36 from the aerobic tank 31,
A part of the treated water is circulated to the introduction pipe 3. As a result, microorganisms are multiplied by utilizing the BOD (index factor substance) of raw water, and denitrification is promoted. Other configurations are the same as in the second embodiment.
【００２５】尚、上記各実施例では本発明吸着材及び担
持体を容器内に充填したが、母液に単に浮遊させても良
い。この場合、吸着材の気泡内に、表面張力及び毛細管
現象により異物が充分に吸着される所定時間経過後に吸
着済みの吸着材を回収すれば良い。In each of the above embodiments, the adsorbent and the carrier of the present invention are filled in a container, but may be simply suspended in a mother liquor. In this case, the adsorbed material that has been adsorbed may be collected after a predetermined time has elapsed in which the foreign matter is sufficiently adsorbed by the surface tension and the capillary phenomenon in the air bubbles of the adsorbent.
【００２６】図５は、本発明が適用された第４の実施例
を示す廃液処理装置を模式的に示す図である。本実施例
は海洋、河川、湖沼、工場排水初期受槽底（沈澱槽）等
に含まれる浮遊沈澱物と、液状物質とを分取する廃液処
理装置に本発明吸着材及び担持体を用いたものである。
図に於て容器５１は、上部が大径であり、かつ下部が小
径の概ね逆円錐形をなす下部体５１ａと、下部体５１ａ
の底部とやや離間して対向する開口を有する有底筒状の
上部体５１ｂとから構成されている。下部体の縮径する
底部にはドレンバルブ５１ｃが設けられている。上部体
５１ｂ内には抑止板５３が設けられ、その下部に見かけ
比重または真比重が回収または除去を必要とする異物が
存在する母液の比重以下の浮遊充填材としての吸着濾過
分離材５２ａを充填し、浮遊層５２を形成している。上
部体５１ｂの中間部には容器５１内に廃液を流し込むべ
く、水量調整槽５５に接続されると共に中間部にＵベン
ト５６及び逆流防止電磁弁５７が設けられた導入管５４
が開口している。また、浮遊層５２にて造粒される多量
のスラッジを支障なく排出するべく上部体５１ｂの下端
開口は全開され、下部体５１ａの縮径する底部に集めら
れ、ドレンバルブ５１ｃを開放することにより外部に排
出されるようになっている。加えて、上部体５１ｂの上
端には処理水を排水するための排水管５８が開口してい
る。ここで、排水管５６には図示されないポンプが接続
され、水面が下部体５１ａからあふれないように、上部
体５１ｂの頂部から排水管５８まで常に水が充満するよ
うに調整されている。FIG. 5 is a view schematically showing a waste liquid treatment apparatus showing a fourth embodiment to which the present invention is applied. In this embodiment, the adsorbent and the carrier of the present invention are used in a waste liquid treatment apparatus for separating floating substances contained in the ocean, rivers, lakes and marshes, and the bottom of sedimentation tanks (sedimentation tanks) and liquid substances. It is.
In the figure, a container 51 has a lower body 51a having a generally inverted conical shape with a large diameter at the top and a small diameter at the bottom.
And a bottomed cylindrical upper body 51b having an opening facing slightly away from the bottom. A drain valve 51c is provided at the bottom of the lower body whose diameter is reduced. A deterrent plate 53 is provided in the upper body 51b, and a lower portion thereof is filled with an adsorption filtration separation material 52a as a floating filler having an apparent specific gravity or a true specific gravity not more than the specific gravity of the mother liquor in which foreign substances needing to be collected or removed exist. Thus, a floating layer 52 is formed. In the middle part of the upper body 51b, an introduction pipe 54 connected to a water amount adjusting tank 55 and provided with a U vent 56 and a backflow prevention solenoid valve 57 in the middle part for flowing waste liquid into the container 51.
Is open. In addition, the lower end opening of the upper body 51b is fully opened in order to discharge a large amount of sludge granulated in the floating layer 52 without hindrance. It is designed to be discharged outside. In addition, a drain pipe 58 for draining the treated water is opened at the upper end of the upper body 51b. Here, a pump (not shown) is connected to the drain pipe 56, and is adjusted so that water is always filled from the top of the upper body 51b to the drain pipe 58 so that the water surface does not overflow from the lower body 51a.
【００２７】実際に廃液を処理するには、導入管５４か
ら廃液を容器５１内に流し込む。すると、浮遊層５２に
て浮遊沈澱物（異物）と液体とが分離され、液体は清澄
水として排水管５８から排出され、浮遊沈澱物は粗粒化
されて、更に増大して下部体５１ａの縮径する底部に集
められる。そして、ドレンバルブ５１ｃを開放すること
によりこれが外部に排出される。ここで、吸着濾過分離
材５２ａは第１〜第３の実施例と同様に重量％で結晶性
ポリプロピレン８６％、非結晶性ポリプロピレン８％の
合成樹脂に発泡剤６％を加え、気泡の径が１０μｍ〜１
０ｍｍとなるように独立発泡させ、その発泡体を破砕す
ることにより得られた０．１ｍｍ〜３００ｍｍの径の多
面体の小片からなり、このような各種サイズの吸着濾過
分離材５２ａを多数浮遊させることにより浮遊層５２を
なしている。本発明吸着材はこのような利用法もある。To actually treat the waste liquid, the waste liquid is poured into the container 51 from the introduction pipe 54. Then, the floating sediment (foreign matter) and the liquid are separated in the floating layer 52, the liquid is discharged from the drain pipe 58 as clarified water, and the floating sediment is coarsened and further increased to form the lower body 51a. Collected at the bottom to reduce diameter. This is discharged to the outside by opening the drain valve 51c. Here, as in the case of the first to third embodiments, 6% of a foaming agent is added to a synthetic resin of 86% of crystalline polypropylene and 8% of non-crystalline polypropylene in the same manner as in the first to third embodiments. 10 μm to 1
Independently foamed so as to be 0 mm, and made of small pieces of polyhedron having a diameter of 0.1 mm to 300 mm obtained by crushing the foam, and floating a large number of such adsorption filtration separation materials 52a of various sizes. Form the floating layer 52. The adsorbent of the present invention has such a use.
【００２８】図６は、本発明が適用された第５の実施例
を示す気液接触を行い得る無菌による濾過、または適性
菌との接触による上向流型の廃液処理装置を模式的に示
す図である。図に於て容器６１内には抑止板６３が設け
られ、その下部に微生物（適性菌）を担持する見かけ比
重または真比重が回収または除去を必要とする異物の存
在する母液比重以下の担持体６２ａ（浮遊充填材）を充
填し、浮遊層６２を形成している。容器６１の下部には
空気を容器６１内に流し込む（曝気する）べく導入管６
４が開口すると共に容器６１内に廃液を流し込むための
導入管６５が設けられている。また、容器１の上部に
は、処理水を排水するための排水管６６が開口してい
る。尚、符号６９は担持体６２ａが下部に流出すること
を防止するための吸着材または担持体用分級板である。FIG. 6 schematically shows a fifth embodiment of the present invention to which a wastewater treatment apparatus of the upflow type by aseptic filtration capable of performing gas-liquid contact or by contact with a suitable bacterium is shown. FIG. In the drawing, a deterrent plate 63 is provided in a container 61, and a carrier having an apparent specific gravity or a true specific gravity below the mother liquor containing a foreign substance that needs to be collected or removed is provided below the depressing plate 63. 62a (floating filler) is filled to form the floating layer 62. An introduction pipe 6 is provided at a lower portion of the container 61 to flow (aerate) the air into the container 61.
An opening 4 is provided, and an introduction pipe 65 for flowing waste liquid into the container 61 is provided. In addition, a drain pipe 66 for draining the treated water is opened at an upper part of the container 1. Reference numeral 69 denotes an adsorbent or a classifying plate for the carrier for preventing the carrier 62a from flowing down.
【００２９】実際に廃液を処理するには、導入管６４か
ら空気を容器６１内に流し込みつつ導入管６５から廃液
を容器６１内に流し込む。すると、浮遊層６２にて廃液
と空気とが好適に接触し、廃液が浄化される。ここで、
担持体６２ａは第１〜第４の実施例と同様に重量％で結
晶性ポリプロピレン８６％、非結晶性ポリプロピレン８
％の合成樹脂に発泡剤６％を加え、気泡の径が１０μｍ
〜１０ｍｍとなるように独立発泡させ、その発泡体を破
砕することにより得られた０．１ｍｍ〜３００ｍｍの径
の多面体の小片からなり、このような各種サイズの担持
体６２ａを多数浮遊させることにより浮遊層６２をなし
ている。In order to actually treat the waste liquid, the waste liquid is introduced into the container 61 from the introduction pipe 65 while air is introduced into the container 61 from the introduction pipe 64. Then, the waste liquid and the air suitably contact each other in the floating layer 62, and the waste liquid is purified. here,
As in the first to fourth embodiments, the carrier 62a is composed of 86% of crystalline polypropylene and 8% of amorphous polypropylene 8% by weight.
% Synthetic resin, foaming agent 6%, bubble diameter 10μm
Independently foamed to be 10 to 10 mm, and made of polyhedral small pieces having a diameter of 0.1 mm to 300 mm obtained by crushing the foam, by floating a large number of such variously sized carriers 62a. A floating layer 62 is formed.
【００３０】図７は、本発明が適用された第６の実施例
を示す気液接触を行い得る母液比重以下の異物を有する
母液の下降流型の廃液処理装置を模式的に示す図であ
る。図に於て容器７１内には抑止板７３が設けられ、そ
の下部に微生物（適性菌）を担持する見かけ比重または
真比重が回収または除去を必要とする異物の存在する母
液比重以下の担持体７２ａ（浮遊充填材）を充填し、浮
遊層７２を形成している。容器７１の下部には空気を容
器７１内に流し込む（曝気する）べく導入管７４が開口
すると共に処理水を排水するための排水管７５が開口し
ている。また、容器７１の上端には該容器７１内に廃液
を流し込むための導入管７６及び分離した異物を外部に
排出するための排出管７７が設けられ、浮遊層７２の上
部には水の層Ｗを介して多数の孔が設けられた廃液分散
板７８が設けられている。尚、符号７９は担持体７２ａ
が下部に流出することを防止するための吸着材または担
持体用分級板であり、符号Ｏは分離した異物の層であ
る。FIG. 7 is a view schematically showing a downflow type waste liquid treatment apparatus of a mother liquor having foreign matter having a specific gravity of less than that of a mother liquor and capable of performing gas-liquid contact, showing a sixth embodiment to which the present invention is applied. . In the figure, a deterrent plate 73 is provided in a container 71, and a carrier having an apparent specific gravity or true specific gravity below the mother liquor containing a foreign substance that needs to be collected or removed exists below the deterrent plate 73. 72a (floating filler) is filled to form a floating layer 72. In the lower part of the container 71, an introduction pipe 74 is opened for flowing (aeration) air into the container 71, and a drain pipe 75 for draining treated water is opened. In addition, at the upper end of the container 71, an introduction pipe 76 for flowing waste liquid into the container 71 and a discharge pipe 77 for discharging separated foreign matter to the outside are provided. A waste liquid dispersing plate 78 provided with a number of holes is provided. Incidentally, reference numeral 79 denotes the carrier 72a.
Is a classifier for an adsorbent or a carrier for preventing outflow to the lower part, and reference symbol O is a layer of separated foreign matter.
【００３１】実際に廃液を処理するには、導入管７４か
ら空気を容器７１内に流し込みつつ導入管７６から廃液
を容器７１内に流し込む。すると、浮遊層７２にて廃液
と空気とが好適に接触し、廃液が浄化される。ここで、
担持体７２ａは第１〜第５の実施例と同様に重量％で結
晶性ポリプロピレン８６％、非結晶性ポリプロピレン８
％の合成樹脂に発泡剤６％を加え、気泡の径が１０μｍ
〜１０ｍｍとなるように独立発泡させ、その発泡体を破
砕することにより得られた０．１ｍｍ〜３００ｍｍの径
の多面体の小片からなり、このような各種サイズの担持
体７２ａを多数浮遊させることにより浮遊層７２をなし
ている。更に図７の下降流と図６の上向流とを併用する
ことにより、母液比重の小さい汚染物質と母液より比重
の大きい汚染物質とを分取することかできる。In order to actually treat the waste liquid, the waste liquid is supplied from the introduction pipe 76 into the container 71 while the air is supplied from the introduction pipe 74 into the container 71. Then, the waste liquid and the air suitably contact each other in the floating layer 72, and the waste liquid is purified. here,
The carrier 72a is composed of 86% of crystalline polypropylene and 8% of amorphous polypropylene 8% by weight in the same manner as in the first to fifth embodiments.
% Synthetic resin, foaming agent 6%, bubble diameter 10μm
Independently foamed so as to have a size of 10 mm to 10 mm, and made of small pieces of a polyhedron having a diameter of 0.1 mm to 300 mm obtained by crushing the foamed body. A floating layer 72 is formed. Further, by using both the downward flow in FIG. 7 and the upward flow in FIG. 6, it is possible to separate the contaminants having a lower specific gravity from the mother liquor and the contaminants having a higher specific gravity than the mother liquor.
【００３２】ここで、上記した下降流型の廃液処理装置
を利用してナフサ、灯油または各種溶剤を異物を移行さ
せるための抽出剤とし、回収または除去が必要な異物を
含む母液を注入し、異物の下方流出を防止するために本
発明吸着材を設置すれば、目的とする異物を選択的に回
収または除去することができる。例えば回収し難い放射
性物質及び金属イオン交換後の固体の非鉄金属液等を分
取し、これが再びイオン化することを防止するのに適し
ている。Here, a naphtha, kerosene or various solvents are used as an extractant for transferring foreign matter by using the above-mentioned downflow type waste liquid treatment apparatus, and a mother liquor containing foreign matter that needs to be collected or removed is injected. If the adsorbent of the present invention is installed in order to prevent foreign substances from flowing down, the target foreign substances can be selectively collected or removed. For example, it is suitable for separating a radioactive substance that is difficult to recover, a solid non-ferrous metal liquid after metal ion exchange, and the like, and preventing it from being ionized again.
【００３３】[0033]
【発明の効果】以上の説明により明らかなように、本発
明による異物吸着材及び適性菌の担持体の製造方法によ
れば、低圧で混練して大きさの不揃いな独立気泡を形成
することにより、広い範囲に渡って大きさが不揃いで、
かつ形状も不揃いで接触効率に優れた吸着材または担持
体を容易に製造することができる。特に、原料樹脂材に
天然多孔質材を混入した上で混練するようにすると、内
部に独立気泡が形成され、原料樹脂材や発泡剤の使用量
を削減することができる。そして、この天然多孔質材は
のこぎりくず、わらくず、穀物のもみがら、木片、繊維
小片及び不織布小片といったもので良く、廃物利用によ
って安価に得ることができるため、独立気泡を有する樹
脂発泡体を低コストに製造することが可能となる。As is apparent from the above description, according to the method for producing a foreign matter adsorbent and a carrier for a suitable bacterium according to the present invention, kneading is performed at a low pressure to form closed cells of irregular sizes. , The size is not uniform over a wide range,
In addition, an adsorbent or carrier having an irregular shape and excellent contact efficiency can be easily manufactured. In particular, if the raw material resin material is mixed with the natural porous material and then kneaded, closed cells are formed inside, and the amount of the raw material resin material and the amount of the foaming agent can be reduced. And this natural porous material may be sawdust, sawdust, grain hulls, wood chips, fiber chips, and non-woven cloth chips, and can be obtained at low cost by using waste, so that a resin foam having closed cells can be obtained. It can be manufactured at low cost.
【図１】本発明が適用された第１の実施例を示す嫌気性
菌による処理装置のダイヤグラム図である。FIG. 1 is a diagram of an apparatus for treating with anaerobic bacteria showing a first embodiment to which the present invention is applied.
【図２】本発明に基づく独立気泡を有する発泡体からな
る吸着材または適性菌の担持体の製造手順を示すガス抜
き開口部付押出し混練器の断面図である。FIG. 2 is a cross-sectional view of an extrusion kneader with a vent opening showing a production procedure of an adsorbent or a carrier of suitable bacteria made of a foam having closed cells according to the present invention.
【図３】本発明が適用された第２の実施例を示す図１と
同様な嫌気性菌による処理装置のダイヤグラム図であ
る。FIG. 3 is a diagram of a anaerobic bacteria treating apparatus similar to FIG. 1 showing a second embodiment to which the present invention is applied.
【図４】本発明が適用された第３の実施例を示す図１及
び図３と同様な嫌気性菌による処理装置のダイヤグラム
図である。FIG. 4 is a diagram of an apparatus for treating with anaerobic bacteria similar to FIGS. 1 and 3, showing a third embodiment to which the present invention is applied.
【図５】本発明が適用された第４の実施例を示す上向流
高比重大容量スラッジ除去装置のダイヤグラム図であ
る。FIG. 5 is a diagram of an upflow high specific gravity sludge removing apparatus showing a fourth embodiment to which the present invention is applied.
【図６】本発明が適用された第５の実施例を示す母液比
重以上の異物を主として有する母液の無菌による濾過ま
たは適性菌との接触による上向流処理装置のダイヤグラ
ム図である。FIG. 6 is a diagram showing a fifth embodiment of the present invention to which an upflow treatment apparatus for aseptically filtering a mother liquor mainly containing foreign substances having a specific gravity higher than that of the mother liquor or contacting it with a suitable bacterium is used.
【図７】本発明が適用された第６の実施例を示す母液比
重以下の異物を有する母液の下降流処理装置のダイヤグ
ラム図である。FIG. 7 is a diagram showing a downflow processing apparatus for a mother liquor having foreign matter having a specific gravity equal to or less than that of a mother liquor according to a sixth embodiment of the present invention.
１ 容器 ２ 浮遊層 ２ａ 担持体 ３ 導入管 ４ 散水ノズル ５ 集水管 ６ 排水管 ７ 余剰汚泥抜き管 ７ａ 排出弁 ８ ノズル ９ ガス回収管 １０ 嫌気造粒汚泥層 １１ 汚泥造粒帯 １３ 抑止板 １９ 吸着材または担持体用分級板 ２１ 脱窒槽 ２２ 脱窒層 ２２ａ 担持体 ２４ 散水ノズル ２５ 集水管 ２６ 排水管 ３１ 好気槽 ３２ａ 担持体 ３２ 好気層 ３４ 散水ノズル ３５ 集水管 ３６ 排水管 ４０ 戻し管 ５１ 容器 ５１ａ 下部体 ５１ｂ 上部体 ５１ｃ ドレンバルブ ５２ 浮遊層 ５２ａ 吸着濾過分離材 ５３ 抑止板 ５４ 導入管 ５５ 水量調整槽 ５６ Ｕベント ５７ 逆流防止電磁弁 ５８ 排水管 ６１ 容器 ６２ 浮遊層 ６２ａ 担持体 ６３ 抑止板 ６４ 導入管 ６５ 導入管 ６６ 排水管 ６９ 吸着材または担持体用分級板 ７１ 容器 ７２ 浮遊層 ７２ａ 担持体 ７３ 抑止板 ７４ 導入管 ７５ 排水管 ７６ 導入管 ７７ 排出管（回収管） ７８ 廃液分散板 ７９ 吸着材または担持体用分級板 Ｗ 水の層 Ｏ 異物の層 ８１ ガス抜き開口部付押出し混練器 ８２ シリンダ ８２ａ ベント ８２ｂ 開口 ８３ スクリュー ８４ ホッパ ８５ 蓋 ８６ ヒータ ８７ プール DESCRIPTION OF SYMBOLS 1 Container 2 Floating layer 2a Carrier 3 Inlet pipe 4 Sprinkling nozzle 5 Water collecting pipe 6 Drain pipe 7 Excess sludge drain pipe 7a Discharge valve 8 Nozzle 9 Gas recovery pipe 10 Anaerobic granulated sludge layer 11 Sludge granulation zone 13 Suppression plate 19 Adsorption Classification plate for material or carrier 21 Denitrification tank 22 Denitrification layer 22a Carrier 24 Sprinkling nozzle 25 Water collecting pipe 26 Drain pipe 31 Aerobic tank 32a Carrier 32 Aerobic layer 34 Sprinkling nozzle 35 Water collecting pipe 36 Drain pipe 40 Return pipe 51 Container 51a Lower body 51b Upper body 51c Drain valve 52 Floating layer 52a Adsorption / filtration / separation material 53 Suppression plate 54 Inlet tube 55 Water volume adjustment tank 56 U vent 57 Backflow prevention solenoid valve 58 Drain pipe 61 Container 62 Floating layer 62a Carrier 63 Suppression plate 64 Introducing pipe 65 Introducing pipe 66 Drain pipe 69 Classifier for adsorbent or carrier 71 Container 72 Floating layer 72a Holder 73 Suppression plate 74 Inlet tube 75 Drain tube 76 Inlet tube 77 Discharge tube (recovery tube) 78 Waste liquid dispersion plate 79 Classifier for adsorbent or carrier W Layer of water O Layer of foreign substance 81 Extrusion kneading with venting opening Container 82 cylinder 82a vent 82b opening 83 screw 84 hopper 85 lid 86 heater 87 pool
Claims (6)
法であって、 原料樹脂材に発泡剤を添加して低圧で混練しつつ独立発
泡させて内部に独立気泡を有する発泡体を形成する過程
と、該過程で得られた発泡体を大きさ及び形状の不揃い
な多数の小片に破砕する過程とを有することを特徴とす
る異物吸着材の製造方法。1. A method for producing a foreign material adsorbent comprising a resin foam, wherein a foaming agent is added to a raw resin material, and the mixture is kneaded at a low pressure and independently foamed to form a foam having closed cells therein. A method for producing a foreign matter adsorbent, comprising: a step of crushing a foam obtained in the step into a number of small pieces having irregular sizes and shapes.
造方法であって、 原料樹脂材に発泡剤を添加して低圧で混練しつつ独立発
泡させて内部に独立気泡を有する発泡体を形成する過程
と、該過程で得られた発泡体を大きさ及び形状の不揃い
な多数の小片に破砕する過程とを有することを特徴とす
る適性菌の担持体の製造方法。2. A method for producing a carrier of suitable bacteria comprising a resin foam, comprising: adding a foaming agent to a raw resin material; kneading the mixture at a low pressure; and performing independent foaming to form a foam having closed cells therein. A method for producing a carrier for a suitable bacterium, comprising a step of forming and a step of crushing a foam obtained in the step into a number of small pieces having irregular sizes and shapes.
た上で混練することを特徴とする請求項１に記載の異物
吸着材の製造方法。3. The method according to claim 1, wherein a natural porous material is mixed with the raw resin material and then kneaded.
た上で混練することを特徴とする請求項２に記載の適性
菌の担持体の製造方法。4. The method according to claim 2, wherein the raw resin material is mixed with a natural porous material and then kneaded.
くず、穀物のもみがら、木片、繊維小片及び不織布小片
のうちいずれか１つ若しくは２つ以上からなることを特
徴とする請求項３に記載の異物吸着材の製造方法。5. The natural porous material according to claim 3, wherein the natural porous material is made of one or more of sawdust, rag, grain husk, wood chip, fiber chip and non-woven cloth chip. A method for producing the foreign matter adsorbent according to the above.
くず、穀物のもみがら、木片、繊維小片及び不織布小片
のうちいずれか１つ若しくは２つ以上からなることを特
徴とする請求項４に記載の適性菌の担持体の製造方法。6. The method according to claim 4, wherein the natural porous material comprises one or more of sawdust, sawdust, grain husk, wood chip, fiber chip and non-woven chip. A method for producing a carrier of the suitable bacterium according to the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5218113A JP2726376B2 (en) | 1993-08-10 | 1993-08-10 | Method for producing foreign matter adsorbent and carrier of suitable bacteria |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5218113A JP2726376B2 (en) | 1993-08-10 | 1993-08-10 | Method for producing foreign matter adsorbent and carrier of suitable bacteria |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0751690A JPH0751690A (en) | 1995-02-28 |
| JP2726376B2 true JP2726376B2 (en) | 1998-03-11 |
Family
ID=16714837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5218113A Expired - Lifetime JP2726376B2 (en) | 1993-08-10 | 1993-08-10 | Method for producing foreign matter adsorbent and carrier of suitable bacteria |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2726376B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014200756A (en) * | 2013-04-08 | 2014-10-27 | 三和化工株式会社 | Filter medium and method of producing the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5254834B2 (en) * | 2009-02-10 | 2013-08-07 | ヤンマー株式会社 | Land culture system |
| CN106049384A (en) * | 2016-05-25 | 2016-10-26 | 安徽普氏生态环境工程有限公司 | Centralized processing system for suspended matters in water body |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5290159A (en) * | 1976-01-22 | 1977-07-28 | Matsushita Electric Works Ltd | Waste water purifing device |
| JPS5524955A (en) * | 1978-08-11 | 1980-02-22 | Babcock Hitachi Kk | Blast furnace slag treatment equipment |
| JPS5565198U (en) * | 1978-10-28 | 1980-05-06 | ||
| JPH085108B2 (en) * | 1987-01-23 | 1996-01-24 | 日本スチレンペ−パ−株式会社 | Method for producing polyolefin resin plate-like foam |
| JP2879897B2 (en) * | 1988-11-04 | 1999-04-05 | 財団法人南洋協会 | Method and apparatus for removing suspended matter using expanded plastic particles |
| JPH02273595A (en) * | 1989-04-14 | 1990-11-08 | Mitsui Petrochem Ind Ltd | Immobilizing material for bacterial cell |
| JPH05117501A (en) * | 1991-10-25 | 1993-05-14 | Kanegafuchi Chem Ind Co Ltd | Polyethylene terephthalate-based resin composition and production of foam using the same |
-
1993
- 1993-08-10 JP JP5218113A patent/JP2726376B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014200756A (en) * | 2013-04-08 | 2014-10-27 | 三和化工株式会社 | Filter medium and method of producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0751690A (en) | 1995-02-28 |
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