JP2672140B2 - Water quality improvement device and water quality improvement method using strip-shaped drain material - Google Patents
Water quality improvement device and water quality improvement method using strip-shaped drain materialInfo
- Publication number
- JP2672140B2 JP2672140B2 JP1506789A JP1506789A JP2672140B2 JP 2672140 B2 JP2672140 B2 JP 2672140B2 JP 1506789 A JP1506789 A JP 1506789A JP 1506789 A JP1506789 A JP 1506789A JP 2672140 B2 JP2672140 B2 JP 2672140B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- shaped drain
- drain material
- strip
- water quality
- 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 - Fee Related
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
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、ダム、湖沼等の汚染された水質の浄化を行
う水質改善装置及びその装置を使用した水質改善方法に
関する。Description: TECHNICAL FIELD The present invention relates to a water quality improving device for purifying polluted water quality of dams, lakes and marshes, and a water quality improving method using the device.
（従来の技術） 一般に、湖沼や池の水質を浄化する方法は種々提案さ
れている。(Prior Art) In general, various methods for purifying the water quality of lakes and ponds have been proposed.
これらの浄化方法を大別すると、以下の二通りが存在
する。There are the following two types of these purification methods.
１）汚濁の進んだ湖水等をポンプで吸引して物理的又
は、化学的に濾過処理を行い浄化して循環させる方法。1) A method in which the polluted lake water or the like is sucked with a pump, physically or chemically filtered to purify and circulate.
２）有機物を多量に含んだ底泥を水域外へ持ち出す浚渫
方式。2) A dredging method that takes out the bottom mud containing a large amount of organic matter to the outside of the water area.
（発明が解決しようとする課題） ところで、上述した従来の水質浄化方法では、例え
ば、１）の方法において処理した水を稀釈しながら浄化
してゆくため、同時に底泥より溶出される栄養塩類によ
り藻類も増殖して行き、結果的に処理期間が長期に亘る
という欠点が存在した。また、底泥層内を浄化改善する
ことは、困難であった。(Problems to be solved by the invention) By the way, in the above-mentioned conventional water purification method, for example, the water treated in the method 1) is purified while being diluted, so that at the same time, nutrient salts eluted from the bottom mud There was a drawback that algae also grew, resulting in a long treatment period. Further, it was difficult to purify and improve the inside of the bottom mud layer.
更に、２）の方法において、回収した底泥を捨てる土
捨場の確保が困難であり、不用意な場所に捨てることは
二次公害の原因ともなっていた。Furthermore, in the method of 2), it is difficult to secure a soil disposal site for discarding the collected bottom mud, and discarding it in a careless place has been a cause of secondary pollution.
そこで、出来るだけ現状のままで改善する方法が模索
されている。Therefore, a method is being sought to improve the situation as it is.
本発明の目的は、上述した欠点に鑑みなされたもので
処理期間を短期化するとともに従来は困難であった底泥
層内を浄化し、かつ、底泥を回収処理する処理のない水
質改善装置及び方法を提供することにある。The object of the present invention was made in view of the above-mentioned drawbacks, and shortens the treatment period and purifies the inside of the bottom mud layer, which was difficult in the past, and recovers the bottom mud. And to provide a method.
（課題を解決するための手段） 本発明に係る帯状ドレーン材による水質改善装置は、
角柱状の枠材を複数帯状に延設して形成した型枠と該型
枠の外周面を覆った不織布とから成る帯状ドレーン材
と、該帯状ドレーン材を夫々平行に複数個配設してそれ
らの略中央を連結する集水管と、該集水管の略中央に配
設されるとともに集水管と連通した浅井戸と、該浅井戸
内の底泥層より低い部位に配置した水中ポンプと該水中
ポンプとパイプを介して連通した噴水孔とから構成され
た水質改善装置を構成したものである。(Means for Solving the Problems) The water quality improving device using the strip-shaped drain material according to the present invention is
A band-shaped drain material composed of a frame formed by extending a plurality of prismatic frame materials in a band shape and a nonwoven fabric covering the outer peripheral surface of the frame, and a plurality of the band-shaped drain materials arranged in parallel. A water collecting pipe that connects the substantially central portions thereof, a shallow well that is arranged substantially in the center of the water collecting pipe and communicates with the water collecting pipe, a submersible pump that is arranged at a portion lower than the bottom mud layer in the shallow well, and The water quality improvement device is composed of a submersible pump and a fountain hole communicating with each other via a pipe.
また、本発明に係る帯状ドレーン材による水質改善方
法は、前記帯状ドレーン材をダム、湖沼等の底泥層中に
埋設するとともに、前記帯状ドレーン材を介して浅井戸
内に回収した湖水を前記水中ポンプで加圧し、水面より
上に設けられた噴水孔から順次散水することにより上部
から下部への流れを発生させ底泥内へ高濃度酸素溶存水
を循環させることにより有機物を酸化分解する水質改善
装置を用いた水質改善方法である。Further, the water quality improvement method using the strip-shaped drain material according to the present invention, the strip-shaped drain material is buried in the bottom mud layer of the dam, lake, etc., and the lake water recovered in the shallow well via the strip-shaped drain material is A water quality that oxidizes and decomposes organic matter by pressurizing with a submersible pump and sequentially sprinkling water from the fountain holes above the water surface to generate a flow from the upper part to the lower part and circulating high concentration oxygen dissolved water in the bottom mud It is a water quality improvement method using an improvement device.
また、本発明に係る帯状ドレーン材による水質改善方
法は、前記帯状ドレーン材をダム、湖沼等の底泥層中に
配置し、該帯状ドレーン材の上から砂を敷設し、この覆
砂及び帯状ドレーン材の濾過作用を介して浅井戸内に湖
水を回収し、水中ポンプで加圧し、水面より上に設けら
れた噴水孔から順次散水することにより上部から下部へ
の流れを発生させ、湖底へ高濃度酸素溶存水を循環させ
ることにより有機物を酸化分解する水質改善装置を用い
た水質改善方法である。Further, the water quality improving method using the strip-shaped drain material according to the present invention is arranged such that the strip-shaped drain material is placed in a bottom mud layer of a dam, a lake or the like, and sand is laid on the strip-shaped drain material to cover the sand and the strip. Lake water is collected in the shallow well through the filtering action of the drain material, pressurized by a submersible pump, and sprinkled sequentially from the fountain holes above the water surface to generate a flow from the upper part to the lower part, to the lake bottom. This is a water quality improvement method using a water quality improvement device that oxidizes and decomposes organic matter by circulating high-concentration oxygen-dissolved water.
（作用） このように、本発明に係る帯状ドレーン材による水質
改善装置によれば、帯状ドレーン材を底泥層内に配設し
たので底泥層内の有機物を酸化分解することにより水質
を改善するという作業を奏する。(Operation) As described above, according to the water quality improvement device using the strip-shaped drain material according to the present invention, since the strip-shaped drain material is arranged in the bottom mud layer, the water quality is improved by oxidizing and decomposing the organic matter in the bottom mud layer. Perform the work of doing.
（実施例） 以下、添付図面に従って本発明の一実施例を説明す
る。第１図は、本発明の一実施例を示す側面図、第３図
は、帯状ドレーン材の一部切り欠き斜視図である。図に
おいて、水質改善装置は、角柱状の枠材１を複数帯状に
延設して形成した型枠２と該型枠２の外周面を覆った不
織布３とから成る帯状ドレーン材４と、該帯状ドレーン
材４を夫々平行に複数個配設してそれらの略中央を連結
する集水管５と、該集水管５の略中央に配設されるとと
もに集水管と連通した浅井戸６と、該浅井戸６内の底泥
７層より低い部位に配置した水中ポンプ８と該水中ポン
プとパイプ９を介して連通した噴水孔10等から構成され
ている。ここで、帯状ドレーン材４は、第３図に示す如
く、複数の溝を設けた合成樹脂から成る型枠２の外周を
濾過作用を有する不織布３で覆って構成されている。不
織布３は、他の濾過作用を有する部材、例えば、織布、
添毛組織であってもよい。集水管５は、中空パイプであ
って、夫々平行に配置した帯状ドレーン材の略中央を連
結し、帯状ドレーン材から回収した水を後述する浅井戸
６へ集める。ここで、帯状ドレーン材のピッチは、1.5
〜2m程度とする。浅井戸６は、中空管、例えば、塩化ビ
ニル管を底泥７中にその底部を1m程度掘って埋設する。
また、浅井戸６の底部は、閉じており、上部は、開口し
ている。浅井戸６の上端は、湖面上迄延設されている。
前述の集水管５で集められた水は、この浅井戸６内に溜
まる。浅井戸６の底部には、水中ポンプ８が設置してあ
り、パイプ９を介して、水面上に突き出た噴水孔10に連
通している。また、前記集水管５は、浅井戸６に対して
直下となるように敷設されている。Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 3 is a partially cutaway perspective view of a belt-shaped drain member. In the figure, the water quality improving apparatus includes a strip-shaped drain member 4 including a form 2 formed by extending a plurality of prismatic frame members 1 in a strip shape and a non-woven fabric 3 covering an outer peripheral surface of the form 2, A plurality of strip-shaped drain members 4 are arranged in parallel, respectively, and a water collecting pipe 5 connecting the substantially central portions thereof, a shallow well 6 arranged at substantially the center of the water collecting pipe 5 and communicating with the water collecting pipe, The shallow well 6 is composed of a submersible pump 8 arranged at a position lower than the bottom mud layer 7 and a fountain hole 10 which communicates with the submersible pump via a pipe 9. Here, as shown in FIG. 3, the strip-shaped drain material 4 is formed by covering the outer periphery of a mold 2 made of synthetic resin having a plurality of grooves with a nonwoven fabric 3 having a filtering action. The non-woven fabric 3 is another member having a filtering action, for example, woven fabric,
It may be a hair accessory tissue. The water collection pipe 5 is a hollow pipe, and connects substantially central portions of the strip-shaped drain materials arranged in parallel, and collects water collected from the strip-shaped drain material into a shallow well 6 described later. Here, the pitch of the strip-shaped drain material is 1.5
Approximately 2m. As for the shallow well 6, a hollow pipe, for example, a vinyl chloride pipe is buried in the bottom mud 7 by digging the bottom portion by about 1 m.
The bottom of the shallow well 6 is closed and the top is open. The upper end of the shallow well 6 extends to the surface of the lake.
The water collected by the above-mentioned water collection pipe 5 accumulates in this shallow well 6. An underwater pump 8 is installed at the bottom of the shallow well 6, and communicates with a fountain hole 10 protruding above the water surface via a pipe 9. Further, the water collection pipe 5 is laid so as to be directly below the shallow well 6.
次に、以上のように構成された帯状ドレーン材による
水質改善装置を用いた水質改善方法について説明する。Next, a water quality improving method using the water quality improving device using the band-shaped drain material configured as described above will be described.
まず、第１図、第４図に示す如く、浄化しようとする
池の水を汲み出した後、底泥７中に浅井戸６を垂直に1m
程打ち込み、該浅井戸６に集水管５を水平方向に接合す
る。集水管５に帯状ドレーン材４を水平でかつ直角に接
合する。この時、帯状ドレーン材４は、集水管５の両側
に突出している。帯状ドレーン材４も溝を掘って底泥７
中に30cm程度埋設する。First, as shown in FIGS. 1 and 4, after pumping out the water from the pond to be purified, a shallow well 6 is vertically placed in the bottom mud 7 for 1 m.
Then, the water collecting pipe 5 is joined to the shallow well 6 in the horizontal direction. The strip-shaped drain member 4 is joined to the water collecting pipe 5 horizontally and at a right angle. At this time, the strip-shaped drain material 4 projects on both sides of the water collection pipe 5. The band-shaped drain material 4 is also dug to form a bottom mud 7.
It is buried about 30 cm inside.
この様な、水質改善方法において、帯状ドレーン材４
の濾布を介して、濾過された水は、集水管５を通って、
浅井戸６内に回収される。回収された水は、水中ポンプ
８により加圧された後、パイプ９を介して、湖上の噴水
孔10から空中に散水される。In such a water quality improving method, the strip-shaped drain material 4
The water filtered through the filter cloth of
It is collected in the shallow well 6. The recovered water is pressurized by the submersible pump 8 and then sprayed through the pipe 9 into the air from the fountain hole 10 on the lake.
空中で散水された水は、空気中の酸素を含んで落下
し、水中の溶存酸素濃度を上昇させる。溶存酸素濃度が
上昇した水は、循環して底泥中にも達し、嫌気状態にあ
った底泥を好気状態へ変化させる。また、有機物は、酸
化分解され、汚泥は減少して、生物の棲息できる環境へ
と改善される。Water sprinkled in the air contains oxygen in the air and falls, increasing the dissolved oxygen concentration in the water. The water having an increased dissolved oxygen concentration circulates and reaches the bottom mud to change the anaerobic bottom mud to an aerobic state. In addition, organic matter is oxidatively decomposed, sludge is reduced, and the environment where living organisms can live is improved.
第２図は、池水を全部汲み出すことのできない場合の
水質改善方法に関するものである。この場合は、透水性
の良好な砂11を底泥７上に敷設する。砂の中には、集水
管５及び帯状ドレーン材４が第１の実施例と同様に敷設
されている。この時の帯状ドレーン材のピッチは、例え
ば1.5〜2m程度とし、長さは、10〜20m程度とする。Figure 2 relates to the water quality improvement method when it is not possible to pump out all the pond water. In this case, sand 11 having good water permeability is laid on the bottom mud 7. In the sand, a water collecting pipe 5 and a strip-shaped drain material 4 are laid in the same manner as in the first embodiment. At this time, the pitch of the strip-shaped drain material is, for example, about 1.5 to 2 m, and the length is about 10 to 20 m.
このような構成とした場合は、池の水を前部汲み出す
必要がないとともに、底泥の溶出を抑制することができ
るとともに、砂自体の濾過機能を利用することができ
る。In the case of such a configuration, it is not necessary to pump out water from the pond in the front part, the elution of the bottom mud can be suppressed, and the filtering function of the sand itself can be utilized.
第５図は、本発明の一実施例を示す平面図である。浅
井戸６は、このように池の中に複数個配設してもよい。FIG. 5 is a plan view showing an embodiment of the present invention. A plurality of shallow wells 6 may be arranged in the pond in this way.
（発明の効果） 以上詳細に説明したように、本発明に係る帯状ドレー
ン材による水質改善方法によれば、底泥中から回収した
水は、集水管を介して浅井戸内に一旦集められた後、水
中ポンプで加圧されて液面上に設けられた噴水孔から散
水される。従って、散水した水は、空中で拡散曝気さ
れ、空気中の酸素を含んで落下する。このため、水中の
溶存酸素濃度が上昇する。また、順次水中ポンプで浅井
戸内の水を汲み上げることにより、垂直方向への循環流
が生じ、酸素濃度の上昇した表面水が底泥中を通過し、
嫌気状態にあった底泥は、好気状態へ変化する。底泥が
好気状態に変化する事で、堆積した有機物は酸化分解さ
れる。この結果、湖沼内の汚泥は減少し、浄化されるこ
とにより、生物の棲息出来る環境へと改善することがで
きる。(Effects of the Invention) As described in detail above, according to the water quality improvement method using the strip-shaped drain material according to the present invention, the water collected from the bottom mud is once collected in the shallow well via the water collection pipe. After that, it is pressurized by a submersible pump and sprayed from a fountain hole provided on the liquid surface. Therefore, the sprinkled water is diffused and aerated in the air, and falls including oxygen in the air. Therefore, the dissolved oxygen concentration in water increases. In addition, by sequentially pumping the water in the shallow well with a submersible pump, a circulating flow in the vertical direction occurs, and surface water with an increased oxygen concentration passes through the bottom mud,
The mud that was in an anaerobic state changes to an aerobic state. The sedimented organic matter is oxidatively decomposed when the bottom mud changes to an aerobic state. As a result, sludge in lakes and marshes is reduced and purified to improve the environment in which living organisms can live.
また、底泥の上に砂を敷き、この砂の中に帯状ドレー
ン材及び集水管を敷設する方法では、湖水を汲み上げて
ドライにすることができない場合や、底泥の透水性が悪
い場合に効果的である。更に、覆砂することにより有機
物、硫化物を封じ込め、酸素消費量及び栄養塩溶出量の
低減化を計り、又砂自体の濾過機能により透過水の浄化
作用を行うことができる。In addition, the method of laying sand on the bottom mud and laying the strip-shaped drain material and the water collection pipe in this sand is useful when the lake water cannot be pumped up to dryness or the water permeability of the bottom mud is poor. It is effective. Furthermore, by covering with sand, organic substances and sulfides can be contained, oxygen consumption and nutrient salt elution can be reduced, and the filtering function of sand itself can purify permeated water.
更にまた、帯状ドレーン材及び集水管上に覆砂する方
法は、装置の設置が容易であるという利点を有する。Furthermore, the method of covering the band-shaped drain material and the water collecting pipe with sand has an advantage that the apparatus can be easily installed.
第１図は本発明の一実施例を示す側面図、第２図は、本
発明の他の実施例を示す側面図、第３図は、本発明に使
用される帯状ドレーン材の一部切り欠き斜視図、第４図
は、本発明の使用状態を示す説明図、第５図は、本発明
を大規模に実施した状態を示す平面図である。 １……枠材、２……型枠、３……不織布、４……帯状ド
レーン材、５……集水管、６……浅井戸、７……底泥、
８……水中ポンプ、９……パイプ、10……噴水孔、11…
…砂。FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a side view showing another embodiment of the present invention, and FIG. 3 is a partial cutaway of a band-shaped drain material used in the present invention. FIG. 4 is a cutaway perspective view, FIG. 4 is an explanatory view showing a use state of the present invention, and FIG. 5 is a plan view showing a state in which the present invention is carried out on a large scale. 1 ... Frame material, 2 ... Formwork, 3 ... Nonwoven fabric, 4 ... Band-shaped drain material, 5 ... Water collection pipe, 6 ... Shallow well, 7 ... Bottom mud,
8 ... Submersible pump, 9 ... Pipe, 10 ... Fountain hole, 11 ...
…sand.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 新垣 紀夫 東京都文京区後楽２―２―８ 五洋建設 株式会社内 (56)参考文献 実開 平１−77814（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norio Aragaki 2-2-8 Koraku, Bunkyo-ku, Tokyo Within Goyo Construction Co., Ltd. (56) References: Kaihei Hei 1-77814 (JP, U)
Claims (3)
た型枠と該型枠の外周面を覆った不織布とから成る帯状
ドレーン材と、該帯状ドレーン材を夫々平行に複数個配
設してそれらの略中央を連結する集水管と、該集水管の
略中央に配設されるとともに集水管と連通した浅井戸
と、該浅井戸内の底泥層より低い部位に配置した水中ポ
ンプと該水中ポンプとパイプを介して連通した噴水孔と
から構成されたことを特徴とする帯状ドレーン材による
水質改善装置。1. A belt-shaped drain material comprising a frame formed by extending a plurality of prismatic frame materials in a belt shape and a non-woven fabric covering the outer peripheral surface of the frame, and a plurality of the belt drain materials arranged in parallel. Individually arranged water collecting pipes that connect the substantially central portions thereof, a shallow well that is arranged substantially in the central portion of the water collecting pipes and communicates with the water collecting pipes, and is arranged at a position lower than the bottom mud layer in the shallow wells. A water quality improvement device using a strip-shaped drain material, which is composed of the submersible pump described above and a fountain hole communicating with the submersible pump via a pipe.
層中に埋設するとともに、前記帯状ドレーン材を介して
浅井戸内に回収した湖水を前記水中ポンプで加圧し、水
面より上に設けられた噴水孔から順次散水することによ
り上部から下部への流れを発生させ底泥内へ高濃度酸素
溶存水を循環させることにより有機物を酸化分解する請
求項１記載の水質改善装置を用いたことを特徴とする水
質改善方法。2. The strip-shaped drain material is buried in a bottom mud layer of a dam, lake or the like, and the lake water collected in a shallow well via the strip-shaped drain material is pressurized by the submersible pump to raise it above the water surface. The water quality improving apparatus according to claim 1, wherein the organic matter is oxidatively decomposed by generating a flow from the upper part to the lower part by sequentially sprinkling water from the provided fountain holes and circulating high concentration oxygen-dissolved water in the bottom mud. A water quality improvement method characterized by the above.
層上に配置し、該帯状ドレーン材の上から砂を敷設し、
この覆砂及び帯状ドレーン材の濾過作用を介して浅井戸
内に湖水を回収し、水中ポンプで加圧し、水面より上に
設けられた噴水孔から順次散水することにより上部から
下部への流れを発生させ、湖底へ高濃度酸素溶存水を循
環させることにより有機物を酸化分解する請求項１記載
の水質改善装置を用いたことを特徴とする水質改善方
法。3. The strip-shaped drain material is arranged on a bottom mud layer of a dam, lake or the like, and sand is laid on the strip-shaped drain material.
The lake water is collected in the shallow well through the filtering action of the sand cover and band-shaped drain material, pressurized with an underwater pump, and sprinkled with water sequentially from the fountain holes provided above the water surface. A water quality improving method using the water quality improving apparatus according to claim 1, wherein the water is generated and circulates high-concentration oxygen-dissolved water to oxidize and decompose organic matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1506789A JP2672140B2 (en) | 1989-01-26 | 1989-01-26 | Water quality improvement device and water quality improvement method using strip-shaped drain material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1506789A JP2672140B2 (en) | 1989-01-26 | 1989-01-26 | Water quality improvement device and water quality improvement method using strip-shaped drain material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02198698A JPH02198698A (en) | 1990-08-07 |
| JP2672140B2 true JP2672140B2 (en) | 1997-11-05 |
Family
ID=11878501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1506789A Expired - Fee Related JP2672140B2 (en) | 1989-01-26 | 1989-01-26 | Water quality improvement device and water quality improvement method using strip-shaped drain material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2672140B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4892868A (en) * | 1984-08-17 | 1990-01-09 | Gipharmex, S.P.A. | Derivatives of biliary acids, process for the production thereof and corresponding pharmaceutical compositions |
| JP4858142B2 (en) * | 2006-12-12 | 2012-01-18 | 株式会社大林組 | Seawater purification system and seawater purification method |
| CN108503147B (en) * | 2018-05-08 | 2021-08-27 | 薛维晋 | Lake sewage treatment device based on ecological structure |
-
1989
- 1989-01-26 JP JP1506789A patent/JP2672140B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02198698A (en) | 1990-08-07 |
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