JP2000000599A - Method and apparatus for improving water quality of water source - Google Patents
Method and apparatus for improving water quality of water sourceInfo
- Publication number
- JP2000000599A JP2000000599A JP18133598A JP18133598A JP2000000599A JP 2000000599 A JP2000000599 A JP 2000000599A JP 18133598 A JP18133598 A JP 18133598A JP 18133598 A JP18133598 A JP 18133598A JP 2000000599 A JP2000000599 A JP 2000000599A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water source
- well
- source
- pump
- 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.)
- Granted
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)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ダム，湖沼等の水
源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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water quality improvement apparatus for purifying water quality contaminated from water sources such as dams, lakes and marshes, and a water quality improvement method using the apparatus.
【０００２】[0002]
【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。2. Description of the Related Art In general, various methods have been proposed for purifying the water quality of lakes and ponds.
【０００３】これらの浄化方法を大別すると、以下の二
通りとなる。[0003] These purification methods can be roughly classified into the following two methods.
【０００４】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 polluted lake water or the like is suctioned by a pump and physically or chemically filtered to purify and circulate.
【０００５】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。[0005] 2) A dredging method in which bottom mud containing a large amount of organic matter is taken out of the water area.
【０００６】然しながら、上述した従来の例えば１）の
方法においては、処理した水を希釈しながら、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、また、底泥層内を浄化改善することは
困難であった。However, in the above-mentioned conventional method 1), for example, the treated water is purified while diluting it, so that the algae also grow due to nutrients eluted from the bottom mud. However, there is a drawback that the treatment period is long, and it has been difficult to improve and purify the inside of the bottom mud layer.
【０００７】更に、２）の方法においては、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 2), it is difficult to secure a dumping site for discarding the collected sediment, and discarding it in an inadvertent place has caused secondary pollution.
【０００８】そこで、出来るだけ現状のままで改善する
方法として、特開平２−１９８６９８号公報に示すもの
が提案されている。Therefore, as a method for improving the state of the art as much as possible, a method disclosed in Japanese Patent Application Laid-Open No. 2-198698 has been proposed.
【０００９】図４〜図６はこのような従来の水源の水質
改善方法及び装置を示す。FIGS. 4 to 6 show such a conventional method and apparatus for improving water quality of a water source.
【００１０】このような水質改善装置は、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
集水管５の開口を介して連通した浅井戸６と、底泥層７
と、該浅井戸６内で上記底泥層７より低い部位に配置し
た水中ポンプ８と、該水中ポンプ８にパイプ９を介して
連通した噴水孔１０等から構成され、集水管５で集めら
れた水は、この浅井戸６内に溜まり、水中ポンプ８によ
りパイプ９を介して、水面上に突き出た噴水孔１０から
空中に噴水され、空中で散水された水は、空気中の酸素
を含んで落下し、溶存酸素濃度が上昇した水は湖１１に
戻り、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。[0010] Such a water quality improving device comprises a band-shaped drain member 4 composed of a mold 2 formed by extending a plurality of rectangular frame members 1 in a band shape and a nonwoven fabric 3 covering the outer peripheral surface of the mold frame 2. When,
A water collecting pipe 5 in which a plurality of the band-shaped drain members 4 are arranged in parallel with each other and connecting their substantially centers to each other; a shallow well 6 which is connected to the substantially central part of the water collecting pipe 5 through an opening of the water collecting pipe 5; Bottom mud layer 7
And a submersible pump 8 disposed at a position lower than the bottom mud layer 7 in the shallow well 6 and a fountain hole 10 connected to the submersible pump 8 via a pipe 9. The accumulated water is accumulated in the shallow well 6 and is spouted into the air from a fountain hole 10 protruding above the water surface by a submersible pump 8 via a pipe 9. The water sprinkled in the air contains oxygen in the air. Then, the water having an increased dissolved oxygen concentration returns to the lake 11, circulates and reaches the bottom mud, and changes the anaerobic bottom mud to an aerobic state. In addition, organic matter is oxidatively decomposed, and sludge is reduced to improve an environment in which living things can live.
【００１１】[0011]
【発明が解決しようとする課題】然しながら、上記従来
のものにおいては、循環する水の流れが常時一方向のた
め、長期間の運転に伴い底泥層７及び帯状ドレーン材４
の表面に目詰まりを生じ、水質改善効果が現れなくなる
欠点があった。However, in the above-mentioned prior art, since the circulating water flow is always one-way, the bottom mud layer 7 and the belt-shaped drain material 4 are required for long-term operation.
There was a drawback that clogging was caused on the surface of the sample and the effect of improving water quality was not exhibited.
【００１２】本発明はこのような欠点を除くようにした
ものである。The present invention has been made to eliminate such disadvantages.
【００１３】[0013]
【課題を解決するための手段】本発明の水源の水質改善
方法は、水源底部に配設したドレーン材を介して、井戸
内に回収した水をポンプで上記水源の水面上に散布する
工程と、上記井戸内の水を上記ポンプによって上記ドレ
ーン材を介して上記水源底部に逆送し、噴出せしめる工
程とより成ることを特徴とする。A method for improving water quality of a water source according to the present invention comprises a step of spraying water collected in a well on a water surface of the water source by a pump through a drain material provided at a bottom of the water source. And returning the water in the well to the bottom of the water source through the drain material by the pump, and causing the water to be jetted out.
【００１４】また、上記本発明の水源の水質改善方法
は、上記水源内の水の所望量を上記井戸内に取り込む工
程を更に有することを特徴とする。Further, the method for improving water quality of a water source according to the present invention is characterized by further comprising a step of taking a desired amount of water in the water source into the well.
【００１５】本発明水源の水質改善装置は、水源の底部
に配設した複数のドレーン材と、このドレーン材を夫々
連結する集水管と、この集水管と連通した井戸と、この
井戸内の水を汲み上げるポンプと、このポンプにより、
汲み上げた水を上記水源上に噴水せしめるためのパイプ
とより成る水質改善装置において、上記集水管と上記パ
イプ間が開閉バルブを介して連通されており、上記ポン
プによって上記井戸内の水を上記ドレーン材を介して上
記水源に逆送可能ならしめたことを特徴とする。The water quality improvement device of the present invention comprises a plurality of drain members disposed at the bottom of the water source, a collecting pipe connecting the drain members, a well communicating with the collecting pipe, and water in the well. Pump and this pump,
In a water quality improvement device comprising a pipe for causing the pumped water to be fountain onto the water source, the water collection pipe and the pipe are communicated via an on-off valve, and the water in the well is drained by the pump. It is characterized in that it can be sent back to the water source via a material.
【００１６】また、本発明水源の水質改善装置において
は、上記パイプが上記水源に開閉バルブを介して連通さ
れており、上記水源内の所望量の水を上記井戸内に取り
込み得ることを特徴とする。In the water quality improvement device for a water source according to the present invention, the pipe is connected to the water source via an on-off valve so that a desired amount of water in the water source can be taken into the well. I do.
【００１７】[0017]
【発明の実施の形態】以下図面によって本発明の実施例
を説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１８】本発明においては、図１及び図２に示すよ
うに湖１１の水面下において上記、浅井戸６の上部に逆
洗用水補充バルブ１２によって開閉される開口１３を形
成し、上記浅井戸６内のパイプ９の中間部に第１の開閉
バルブ１４を介挿し、この第１の開閉バルブ１４と上記
水中ポンプ８間における上記パイプ９と、上記集水管５
間を第２の開閉バルブ１５を介してパイプ１６によって
連結すると共に、上記浅井戸６に対する上記集水管５の
開口に第３の開閉バルブ１７を設け、例えばタイマー
（図示せず）を用いて、例えば昼間においては上記第１
と第３の開閉バルブ１４，１７を開き、第２の開閉バル
ブ１５を閉じ、帯状ドレーン材４から集めた水を集水管
５を介して浅井戸６内底部に集め、水中ポンプ８により
噴水孔１０から湖１１上に噴水せしめると共に、夜間に
は上記第１と第３の開閉バルブ１４，１７を閉じ、第２
の開閉バルブ１５を開き、上記浅井戸６内底部の水を水
中ポンプ８により、上記集水管５を介して上記帯状ドレ
ーン材４から底泥層７内に逆噴出せしめるようにする。In the present invention, as shown in FIGS. 1 and 2, an opening 13 opened and closed by a backwash water replenishing valve 12 is formed above the shallow well 6 below the surface of the lake 11, and the shallow well is formed. A first opening / closing valve 14 is inserted into an intermediate portion of the pipe 9 inside the pipe 6, and the pipe 9 between the first opening / closing valve 14 and the submersible pump 8;
The connection between them is made by a pipe 16 via a second opening / closing valve 15, and a third opening / closing valve 17 is provided at the opening of the water collecting pipe 5 with respect to the shallow well 6. For example, in the daytime, the first
And the third on-off valves 14 and 17 are opened, and the second on-off valve 15 is closed. At the same time, the first and third on-off valves 14 and 17 are closed at night and the second
The opening / closing valve 15 is opened so that the water in the bottom of the shallow well 6 is spouted from the belt-shaped drain material 4 into the bottom mud layer 7 by the submersible pump 8 through the water collecting pipe 5.
【００１９】なお、本発明においては、通水抵抗の大き
い上記帯状ドレーン材４に替えて、通水抵抗を小さくし
た多孔質コンクリート製の円管や矩形管のドレーン材
（図示せず）を用いても良い。In the present invention, a porous concrete circular pipe or rectangular pipe drain material (not shown) having a low water flow resistance is used in place of the belt-shaped drain material 4 having a high water flow resistance. May be.
【００２０】また、上記浅井戸６及びこれに関連する帯
状ドレーン材４のグループは、上記底泥層７及び帯状ド
レーン材４の目詰まり解消を効果的ならしめるため、そ
の分担範囲を１５０ｍ2 程度に限定し、これらグループ
を図３に示すように互いに隣接して複数設けるのが好ま
しい。The shallow well 6 and the group of the band-shaped drain members 4 related thereto have a sharing range of about 150 m 2 in order to effectively eliminate clogging of the bottom mud layer 7 and the band-shaped drain members 4. It is preferable to provide a plurality of these groups adjacent to each other as shown in FIG.
【００２１】本発明による上記水中ポンプ８による噴水
に際しては、上記浅井戸６の底部に溜まる水位に所望の
上限Ｈ・Ｗ・Ｌと下限Ｌ・Ｗ・Ｌとを設定し、この水位
を水位計（図示せず）により検知して水位が常時この上
限と下限の間となるように上記水中ポンプ８をオン，オ
フ制御せしめ、例えば単位面積当りの濾過速度を８ｍ／
日となるように、従って、上記分担範囲が１５０ｍ2 の
場合には、８ｍ／日×１５０ｍ2 ＝１，２００ｍ3 ／日
となるようにするのが好ましい。At the time of the fountain by the submersible pump 8 according to the present invention, desired upper and lower limits H.W.L and L.W.L are set to the water level collected at the bottom of the shallow well 6, and these water levels are measured with a water level gauge. (Not shown), the submersible pump 8 is turned on and off so that the water level is always between the upper and lower limits. For example, the filtration speed per unit area is 8 m /
Therefore, it is preferable to set 8 m / day × 150 m 2 = 1,200 m 3 / day when the allotted range is 150 m 2 .
【００２２】また、上記逆洗の場合には、例えば、逆洗
流速を６０〜１００ｃｍ／分とし、諸損失水頭を考慮し
て、水中ポンプ８の揚程を例えば１０ｍとする。In the case of the backwash, for example, the backwash flow rate is set to 60 to 100 cm / min, and the head of the submersible pump 8 is set to, for example, 10 m in consideration of various head losses.
【００２３】なお、逆洗に必要な水量は上記水位計の検
知出力によって上記逆洗用水補充バルブ１２をオン，オ
フ制御して所望の水量を開口１３を介して湖１１から上
記浅井戸６内に取り込むようにする。The amount of water required for backwashing is controlled by turning on and off the backwash water replenishing valve 12 based on the detection output of the water level meter, and a desired amount of water is supplied from the lake 11 through the opening 13 into the shallow well 6. To take in.
【００２４】[0024]
【発明の効果】上記のように、本発明によれば、底泥層
及び帯状ドレーン材の目詰まりを極めて簡単，容易に防
止できるようになる大きな利益がある。As described above, according to the present invention, there is a great advantage that clogging of the bottom mud layer and the band-shaped drain material can be prevented very easily and easily.
【図１】本発明の水源の水質改善装置の説明用縦断側面
図である。FIG. 1 is a vertical sectional side view for explaining a water quality improvement device of a water source according to the present invention.
【図２】本発明に使用される浅井戸の下部の詳細説明図
である。FIG. 2 is a detailed explanatory view of a lower part of a shallow well used in the present invention.
【図３】本発明に使用される帯状ドレーン材の分担部分
を示す平面図である。FIG. 3 is a plan view showing a shared portion of a band-shaped drain material used in the present invention.
【図４】従来の水源の水質改善方法及び装置の説明用縦
断側面図である。FIG. 4 is a vertical sectional side view for explaining a conventional water source water quality improving method and apparatus.
【図５】従来の水源の水質改善装置の説明用斜視図であ
る。FIG. 5 is an explanatory perspective view of a conventional water source water quality improvement device.
【図６】従来の水源の水質改善装置に使用される帯状ド
レーンの説明用斜視図である。FIG. 6 is an explanatory perspective view of a belt-shaped drain used in a conventional water source water quality improvement device.
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 底泥層 ８ 水中ポンプ ９ パイプ １０ 噴水孔 １１ 湖 １２ 逆洗用水補充バルブ １３ 開口 １４ 第１の開閉バルブ １５ 第２の開閉バルブ １６ パイプ １７ 第３の開閉バルブ DESCRIPTION OF SYMBOLS 1 Frame material 2 Form frame 3 Nonwoven fabric 4 Strip drain material 5 Water collecting pipe 6 Shallow well 7 Bottom mud layer 8 Submersible pump 9 Pipe 10 Fountain hole 11 Lake 12 Backwashing water replenishment valve 13 Opening 14 First opening / closing valve 15 Second On-off valve 16 Pipe 17 Third on-off valve
Claims (4)
て、井戸内に回収した水をポンプで上記水源の水面上に
散布する工程と、 上記井戸内の水を上記ポンプによって上記ドレーン材を
介して上記水源底部に逆送し、噴出せしめる工程とより
成ることを特徴とする水源の水質改善方法。1. A step of spraying water collected in a well on a water surface of the water source by a pump through a drain material provided at a bottom of the water source, and discharging the water in the well by the pump using the pump. And feeding the water back to the bottom of the water source through the water source to cause the water to be ejected.
取り込む工程を更に有することを特徴とする請求項１記
載の水源の水質改善方法。2. The method for improving water quality of a water source according to claim 1, further comprising a step of taking a desired amount of water in the water source into the well.
と、このドレーン材を夫々連結する集水管と、この集水
管と連通した井戸と、この井戸内の水を汲み上げるポン
プと、このポンプにより汲み上げた水を上記水源上に噴
水せしめるためのパイプとより成る水質改善装置におい
て、上記集水管と上記パイプ間が開閉バルブを介して連
通されており、上記ポンプによって上記井戸内の水を上
記ドレーン材を介して上記水源に逆送可能ならしめたこ
とを特徴とする水源の水質改善装置。3. A plurality of drain materials disposed at the bottom of a water source, a water collecting pipe connecting the drain materials, a well communicating with the water collecting pipe, a pump for pumping water in the well, and the pump. In the water quality improvement device comprising a pipe for causing the water pumped by the fountain to be sprayed onto the water source, the water collection pipe and the pipe are communicated via an on-off valve, and the water in the well is pumped by the pump. A water quality improvement device for a water source, wherein the water source can be returned to the water source via a drain material.
して連通されており、上記水源内の所望量の水を上記井
戸内に取り込み得ることを特徴とする請求項３記載の水
源の水質改善装置。4. The improvement of water quality of a water source according to claim 3, wherein said pipe is connected to said water source via an on-off valve so that a desired amount of water in said water source can be taken into said well. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18133598A JP3713677B2 (en) | 1998-06-15 | 1998-06-15 | Water source quality improvement equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18133598A JP3713677B2 (en) | 1998-06-15 | 1998-06-15 | Water source quality improvement equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000000599A true JP2000000599A (en) | 2000-01-07 |
| JP3713677B2 JP3713677B2 (en) | 2005-11-09 |
Family
ID=16098906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18133598A Expired - Fee Related JP3713677B2 (en) | 1998-06-15 | 1998-06-15 | Water source quality improvement equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3713677B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008142666A (en) * | 2006-12-12 | 2008-06-26 | Ohbayashi Corp | Seawater purification system and method therefor |
| CN110668623A (en) * | 2019-10-29 | 2020-01-10 | 温州大学 | Device for promoting flow guide of water between surface layer and bottom layer and water quality purification method |
-
1998
- 1998-06-15 JP JP18133598A patent/JP3713677B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008142666A (en) * | 2006-12-12 | 2008-06-26 | Ohbayashi Corp | Seawater purification system and method therefor |
| CN110668623A (en) * | 2019-10-29 | 2020-01-10 | 温州大学 | Device for promoting flow guide of water between surface layer and bottom layer and water quality purification method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3713677B2 (en) | 2005-11-09 |
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