JPS6362515A - Treatment of muddy water - Google Patents
Treatment of muddy waterInfo
- Publication number
- JPS6362515A JPS6362515A JP61205890A JP20589086A JPS6362515A JP S6362515 A JPS6362515 A JP S6362515A JP 61205890 A JP61205890 A JP 61205890A JP 20589086 A JP20589086 A JP 20589086A JP S6362515 A JPS6362515 A JP S6362515A
- Authority
- JP
- Japan
- Prior art keywords
- water
- temp
- muddy water
- particles
- substrate
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 23
- 239000010802 sludge Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 abstract description 6
- 238000005192 partition Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 4
- 238000000151 deposition Methods 0.000 abstract 5
- 230000008021 deposition Effects 0.000 abstract 4
- 230000001580 bacterial effect Effects 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 6
- 238000011001 backwashing Methods 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 230000001464 adherent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 101000927062 Haematobia irritans exigua Aquaporin Proteins 0.000 description 1
- 241001417495 Serranidae Species 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
- Cleaning Or Clearing Of The Surface Of Open Water (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は例えばダムから放水された濁水の処理方法に関
し、殊にその冷温濁水を自然の浄化作用により清浄化さ
せ、かつ太陽熱で昇温させることのできる濁水の処理方
法に関するものである。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for treating turbid water discharged from a dam, for example, and in particular a method for purifying the cold turbid water by natural purification action and heating it by solar heat. The present invention relates to a method for treating turbid water.
一般にダムからの放出水はダムの水深の深い部分から放
出されるため、低温の濁水であり、そのような低温の濁
水を河川にそのまま放流すると、下流河川の魚類に被害
を及ぼすばかりでなく、それが水田などの農業用水に使
用される場合には作物に被害を及ぼすという問題があり
、従来、この冷温濁水を清浄化し、かつ暖める対策が強
く要望されている。Water released from dams is generally low-temperature and turbid water because it is released from the deep part of the dam, and if such low-temperature turbid water is discharged directly into rivers, it will not only cause damage to fish in downstream rivers, but also cause damage to rivers. When this water is used for agricultural purposes such as rice fields, there is a problem in that it damages crops, and there has been a strong demand for measures to purify and warm this cold and turbid water.
このような濁水の清浄化には、従来薬剤を投入して凝集
沈澱させる方法が採用されているが、この場合は薬剤を
使用するための二次公害対策が必要であり、更に沈澱物
の処理などのコストがかかるという問題がある。The conventional method for purifying such turbid water is to introduce chemicals and cause coagulation and sedimentation, but in this case, countermeasures against secondary pollution are required due to the use of chemicals, and further treatment of the sediment is required. There is a problem in that it is costly.
本発明は前記従来の問題点を解消し、例えばダムから放
出される濁水の清浄化を薬剤などを一切使用せずに、自
然の浄化作用の応用により行いうる濁水の処理方法を提
供することを目的としたものである。The present invention solves the above-mentioned conventional problems and provides a method for treating turbid water that can be purified, for example, by applying natural purification action to purify turbid water discharged from a dam without using any chemicals. This is the purpose.
（発明の構成）
上記の目的を達成するため、本発明の濁水の処理方法は
、例えばダムから放出された濁水を、多数に分岐された
水路内に設けられ、空隙率が高く容積当りの比表面積が
大きな付着基質からなる濾材をその内部に遊動自在に多
数充填し、かつその下部にスラッジ流送水路を有する濾
過槽を通過させると共に、上記の各水路に設けられた濾
過槽を該スラッジ流送水路に空気散気させながら順次個
別に逆洗浄させることを特徴としたものである。(Structure of the Invention) In order to achieve the above object, the method for treating turbid water of the present invention is to treat turbid water discharged from a dam, for example, by treating the turbid water with a high porosity and a high porosity ratio per volume. A large number of filter media made of adhesion substrates with a large surface area are filled in the interior so as to be freely movable, and the sludge flow passes through a filtration tank having a sludge flow channel at the bottom. The feature is that backwashing is carried out sequentially and individually while dispersing air in the water supply channel.
以下図面を参照して本発明の処理方法を適用した実施例
を説明するが、第１図は本発明の処理方法による濁水の
処理装置の平面図、第２図は第１図の濾過槽の一部拡大
平面図、第３図は第２図の側断面図、第４図は第３図の
Ａ−Ａ方向の正断面図、第５図は第３図のＢ−Ｂ方向の
正断面図、第６−Ａ図及び第６−Ｂ図は第２図のスラッ
ジ流送水路の扉の開閉状態を説明する拡大正面図、第７
図は第４図のスラッジ流送水路の要部斜視図、第８図は
本実施例で使用される付着基質の斜視図である。Examples in which the treatment method of the present invention is applied will be described below with reference to the drawings. Figure 1 is a plan view of a turbid water treatment apparatus according to the treatment method of the present invention, and Figure 2 is a view of the filtration tank shown in Figure 1. A partially enlarged plan view, Figure 3 is a side sectional view of Figure 2, Figure 4 is a front sectional view taken along A-A in Figure 3, and Figure 5 is a front sectional view taken along B-B in Figure 3. Figures 6-A and 6-B are enlarged front views illustrating the opening and closing states of the door of the sludge flow channel in Figure 2, and Figure 7.
The figure is a perspective view of the main part of the sludge flow channel shown in FIG. 4, and FIG. 8 is a perspective view of the adhesion substrate used in this embodiment.
まず、第１図に示すこの処理装置は、図示されていない
ダムから放水された冷温濁水Ｗｄの原水を、−本の原水
水路１から多数に分岐された水路、即ち本実施例では１
１本の水路内にそれぞれ設けられた濾過槽２内に通過さ
せることにより処理され、処理水Ｗｃは処理水水路３を
通って河川４に放流されるようになっている。First, this treatment device shown in FIG.
The treated water Wc is treated by passing through filter tanks 2 provided in each water channel, and the treated water Wc is discharged into a river 4 through a treated water channel 3.
次に、上記各水路内に設けられた濾過槽２は、第２図及
び第３図に示すごとく複数の網状又は格子状体５で仕切
られており、その仕切内に、空隙率が高く、比重が０．
９０〜０．９９、好ましくは０．９７程度の容積当りの
比表面積が大きな第８図の斜視図に示す黒色の付着基質
６がその内部で遊動自在に多数充填されており、その下
部は上流から下流にかけて深くなる傾斜面を有し、かつ
第４図及び第５図に示すごとく４列ホフパー型水路構造
のスラッジ流送水路６が形成されており、沈澱物の流出
がしやすいようになっている。Next, the filtration tank 2 provided in each of the water channels is partitioned by a plurality of net-like or lattice-like bodies 5 as shown in FIGS. Specific gravity is 0.
A large number of black adhesion substrates 6, shown in the perspective view of FIG. 8, having a large specific surface area per volume of 90 to 0.99, preferably about 0.97, are filled inside the substrate so as to be freely movable. As shown in Figures 4 and 5, the sludge flow channel 6 has a slope that becomes deeper toward the downstream, and has a four-row Hoffper type channel structure, making it easier for sediment to flow out. ing.
また、このホッパー型のスラッジ流送水路７には、密度
流による短絡を防止するために、第６−Ａ図の状態で閉
じ、第６−Ｂ図の状態で開（、開閉式の扉８が設けられ
ており、これらの扉８は、濾過通水時には閉じ、濾過［
２の逆洗冷時には開としている。In addition, this hopper-type sludge flow channel 7 has an opening/closing door 8, which is closed in the state shown in Figure 6-A and opened in the state shown in Figure 6-B, in order to prevent short circuits due to density flow. are provided, and these doors 8 are closed when water is being filtered, and the doors 8 are closed when water is being filtered.
It is open during backwash cooling in step 2.
そこで、上記の１１本の水路内にそれぞれ設けられた濾
過槽２に冷温濁水Ｗｄが流入すると、網状又は格子状体
５の仕切内で比重が０．９７程度にすることによって遊
動する多数の付着基質６により多数のカルマン渦流が多
く発生し、しかも、その付着基質６は空隙率力く高（、
容積当りの比表面積が大きいので、それらの表面に冷温
濁水Ｗｄ中の微細土粒子が接触し、そして付着しやすく
なっており、沈降効率よく処理されることになり、しか
もこの付着基質６が黒色であるので、太陽からの熱線を
吸収し、その濾過の過程で僅かでも水温を上昇すること
ができる。Therefore, when cold and hot turbid water Wd flows into the filtration tanks 2 provided in each of the 11 water channels, a large number of adherents move freely within the partitions of the net-like or lattice-like body 5 with a specific gravity of about 0.97. A large number of Karman vortices are generated by the substrate 6, and the adhering substrate 6 has a high porosity (,
Since the specific surface area per volume is large, the fine soil particles in the cold and hot turbid water Wd come into contact with these surfaces and easily adhere to them, resulting in efficient sedimentation treatment.Moreover, this adhering substrate 6 is black. Therefore, it absorbs heat rays from the sun and can raise the water temperature even slightly in the process of filtering it.
以上のごとく、本発明の処理方法では、冷温濁水Ｗｄか
ら接触吸着濾過方式により微粒子の除去を行うものであ
り、この処理方式の原理を説明すると、河川の自浄作用
として川底の砂利や玉石の表面に濁水が接触すると、吸
着作用により濁度成分が除去される作用が見られ、これ
は石などの表面に付着藻類や微生物膜などが付着してい
る場合に特に認められ、この膜は吸着物などを含んだ状
態で肥厚していくが、これを応用したのが本発明である
。As described above, in the treatment method of the present invention, fine particles are removed from cold and hot turbid water Wd by a contact adsorption filtration method.The principle of this treatment method is to explain the principle of this treatment method. When turbid water comes into contact with turbid water, the turbidity components are removed by adsorption, and this is especially observed when there is an adherent algae or microbial film attached to the surface of stones, etc. The present invention is an application of this phenomenon.
一方、砂利や玉石は容積当りの表面積に限界があるので
、本発明ではこれより単位容積当りの表面積が大きい物
質を付着基質６として使用し、河川などよりも冷温濁水
Ｗｄに対する吸着効率を上げるために、冷温濁水Ｗｄが
濾過槽２の付着基質６と全量接触するような形態として
、付着基質６を濾材とした濾過方式として、濁度成分除
去の効率化をはかったものである。On the other hand, since gravel and cobblestones have a limited surface area per unit volume, in the present invention, a substance with a larger surface area per unit volume is used as the adhesion substrate 6 to increase the adsorption efficiency for cold and turbid water Wd compared to rivers, etc. In addition, the cold and hot turbid water Wd is entirely in contact with the adhesion substrate 6 of the filtration tank 2, and the filtration method uses the adhesion substrate 6 as a filter medium, thereby improving the efficiency of removing turbidity components.
次に、上記の処理装置では各水路に設けた濾過槽２のう
ち１つの濾過槽２を適当の間隔、例えば２日間隔で順次
個別に逆洗浄して、濾過槽２の再生を行うようにしてお
り、この再生では逆洗浄を行い、濾過槽２を設けた水路
の流入、流出口の各水門を閉鎖した後、ホッパー型のス
ラッジ流送水路７の扉８を開き、これらスラッジ流送水
路７に第７図のごとく設けた空気管１０の各ノズル１１
により、底部から空気を散気して、各仕切ごと付着基質
６の濾過槽２を流動させ、気泡による振動と流動に伴う
擦れ合いにより、付着基質６表面の付着膜を剥離させる
ようにしている。Next, in the above treatment device, one of the filtration tanks 2 provided in each waterway is individually backwashed at appropriate intervals, for example, every two days, to regenerate the filtration tank 2. In this regeneration, backwashing is performed, and after closing each water gate at the inlet and outlet of the waterway where the filtration tank 2 is installed, the door 8 of the hopper-type sludge flow channel 7 is opened, and these sludge flow channels are Each nozzle 11 of the air pipe 10 provided at 7 as shown in FIG.
By this, air is diffused from the bottom to make the filtration tank 2 of the adhesion substrate 6 flow in each partition, and the adhesion film on the surface of the adhesion substrate 6 is peeled off by the vibration caused by the air bubbles and the friction caused by the flow. .
この操作を各仕切について順次行い、終了後排水ポンプ
により排水を全量沈澱池に移送し、水路内を空にし、再
度原水水路１の流入口から冷温濁水Ｗｄを導入して濁水
とし、散気及び排出操作を再び行い、水位がスラッジ流
送水路７の部位に低下した時点で、流入側の底部掃流用
取水管から冷温濁水Ｗｄを取り入れて、スラッジ流送水
路７底部の流掃を行う。This operation is carried out sequentially for each partition, and after completion, the entire amount of wastewater is transferred to the sedimentation basin by a drainage pump, the inside of the waterway is emptied, and cold turbid water Wd is again introduced from the inlet of the raw water waterway 1 to make it turbid, and the water is aerated and The discharge operation is performed again, and when the water level drops to the area of the sludge flow channel 7, cold turbid water Wd is taken in from the bottom sweep intake pipe on the inflow side, and the bottom of the sludge flow channel 7 is swept.
この操作の終了後、冷温濁水Ｗｄを導入し満杯として静
置し、スラッジ流送水路７の扉８を閉じる。After this operation is completed, cold and warm turbid water Wd is introduced, the water is left to stand until full, and the door 8 of the sludge flow channel 7 is closed.
なお、これら一連の逆洗浄再生工程は、タイマーによる
自動制御で行うことができる。Note that this series of backwashing and regeneration steps can be performed under automatic control using a timer.
また、洗浄排水は専用の沈澱槽で懸濁固形物を沈澱分離
した後、処理水は原水水路１に戻して接触濾過処理を受
けて放流され、一方懸濁固形物の濃縮汚泥はサンドベッ
ド等で脱水し、搬出され、埋め立て等により処理される
。In addition, after the washed waste water is separated by sedimentation of suspended solids in a dedicated settling tank, the treated water is returned to the raw water channel 1, subjected to contact filtration treatment, and then discharged, while the concentrated sludge containing suspended solids is collected in a sand bed, etc. The waste is dehydrated, transported, and disposed of in landfills, etc.
なお、本発明の実施例の装置において、その接触濾過工
程にて濾過槽２内で使用される付着基質６は、第８図に
示すごとき合成樹脂製などの小さな筒状の網状体がある
が、特に本実施例に示すものに限定するものではなく、
比重が０゜９０〜０．９９、好ましくは０．９７程度の
空隙率が高く比表面積が大きく、しかも再生性が良く、
黒色のものであればどのような材料及び形状のものでも
良い。In the apparatus of the embodiment of the present invention, the adhesion substrate 6 used in the filtration tank 2 in the contact filtration process is a small cylindrical net-like body made of synthetic resin as shown in FIG. , is not particularly limited to what is shown in this example,
It has a high porosity with a specific gravity of 0°90 to 0.99, preferably about 0.97, a large specific surface area, and good reproducibility.
Any material and shape may be used as long as it is black.
以上に説明したごとく、本発明の濁水の処理方法では、
濾過槽を構成する付着基質にハタテリヤ膜などの付着膜
を形成させ、それに濁水中の微細土粒子を付着させて剥
離、沈澱させることにより、濁度成分を除去させるよう
にした接触濾過法を採用しているので、薬剤などを一切
使用せず、水質に全＜ ’４５響を与えることがなく濁
水の浄化ができ、しかも黒色の付着基質により水温の上
昇をはかることができるので、下流河川の魚類の保護及
び水田などの農作物を冷水から守ることができるという
効果がある。As explained above, in the turbid water treatment method of the present invention,
Adopts a contact filtration method in which turbidity components are removed by forming an adhesion film such as a grouper film on the adhesion substrate that makes up the filtration tank, and attaching fine soil particles in turbid water to the adhesion substrate, causing them to peel off and settle. Because of this, it is possible to purify turbid water without using any chemicals and without affecting the water quality.Furthermore, it is possible to increase the water temperature with the black adhering substrate, so it is possible to improve the quality of downstream rivers. This has the effect of protecting fish and crops such as rice paddies from cold water.
また、薬剤その他の凝集材を使用せず、濾過材である付
着基質は逆洗浄による再生可能であり、消耗品がないの
で処理コストも安価であるという利点がある。Further, there are advantages in that no chemicals or other aggregating materials are used, the adhesion substrate that is the filtration material can be regenerated by backwashing, and the processing cost is low because there are no consumables.
第１図は本発明の処理方法による濁水の処理装置の平面
図、第２図は第１図の濾過槽の拡大平面図、第３図は第
２図の側断面図、第４図は第３図のＡ−Ａ方向の正断面
図、第５図は第３図のＢ−Ｂ方向の正断面図、第６−Ａ
図及び第６−Ｂ図は第２図のスラッジ流送水路の扉の開
閉状態を説明する拡大正面図、第７図は第４図のスラッ
ジ流送水路の要部斜視図、第８図は本実施例で使用され
る付着基質の斜視図である。
ｌ・・・原水水路、２・・・濾過槽、６・・・付着基質
、７・・・スラッジ流送水路、１０・・・空気管、１１
・・・ノズル、Ｗｄ・・・冷温濁水。FIG. 1 is a plan view of a turbid water treatment apparatus according to the treatment method of the present invention, FIG. 2 is an enlarged plan view of the filtration tank shown in FIG. 1, FIG. 3 is a side sectional view of FIG. 2, and FIG. 3 is a front sectional view taken along the line A-A, FIG. 5 is a front sectional view taken along the BB direction shown in FIG.
Figure 6-B is an enlarged front view illustrating the opening and closing state of the door of the sludge flow channel in Figure 2, Figure 7 is a perspective view of the main part of the sludge flow channel in Figure 4, and Figure 8 is a FIG. 2 is a perspective view of the adhesion substrate used in this example. l... Raw water channel, 2... Filtration tank, 6... Adhesion substrate, 7... Sludge flow channel, 10... Air pipe, 11
...Nozzle, Wd...Cold and warm turbid water.
Claims (1)
表面積が大きな付着基質からなる濾材をその内部に遊動
自在に多数充填し、かつその下部にスラッジ流送水路を
有する濾過槽内に濁水を通過させ、上記の各水路に設け
られた濾過槽を該スラッジ流送水路に空気散気させなが
ら順次個別に逆洗浄させる冷温濁水の処理方法。A large number of filter media made of adhering substrates with high porosity and a large specific surface area per volume are filled in a water channel that is branched into many branches, and a filtration tank has a sludge flow channel at the bottom. A method for treating cold and hot turbid water, in which the turbid water is passed through and the filtration tanks provided in each of the waterways are individually backwashed while aerating the sludge flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61205890A JPS6362515A (en) | 1986-09-03 | 1986-09-03 | Treatment of muddy water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61205890A JPS6362515A (en) | 1986-09-03 | 1986-09-03 | Treatment of muddy water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6362515A true JPS6362515A (en) | 1988-03-18 |
| JPH026563B2 JPH026563B2 (en) | 1990-02-09 |
Family
ID=16514427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61205890A Granted JPS6362515A (en) | 1986-09-03 | 1986-09-03 | Treatment of muddy water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6362515A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008545522A (en) * | 2005-05-16 | 2008-12-18 | リー，バ−ドゥ | Small river water purification system |
-
1986
- 1986-09-03 JP JP61205890A patent/JPS6362515A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008545522A (en) * | 2005-05-16 | 2008-12-18 | リー，バ−ドゥ | Small river water purification system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH026563B2 (en) | 1990-02-09 |
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