JPH0746322Y2 - Turbid water treatment tank - Google Patents
Turbid water treatment tankInfo
- Publication number
- JPH0746322Y2 JPH0746322Y2 JP6189389U JP6189389U JPH0746322Y2 JP H0746322 Y2 JPH0746322 Y2 JP H0746322Y2 JP 6189389 U JP6189389 U JP 6189389U JP 6189389 U JP6189389 U JP 6189389U JP H0746322 Y2 JPH0746322 Y2 JP H0746322Y2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- wall
- water treatment
- sludge
- swirling
- 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
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） この考案の濁水処理槽は、トンネル掘削等の土木作業現
場において掘削時に使用した水を排水するときに使用す
る濁水処理装置の要部である濁水処理槽に関する。[Detailed Description of the Invention] (Industrial field of application) The turbid water treatment tank of the present invention is a main part of a turbid water treatment device used when draining water used during excavation in a civil engineering work site such as tunnel excavation. It relates to a muddy water treatment tank.
（従来の技術） 例えばシールド式掘進工事で地中にトンネルを掘り進む
場合、作業廃水や土中からの湧出水は、総て掘削廃水と
してトンネル外へ排出しなければならない。(Prior Art) For example, when a tunnel is dug in the ground by shield type excavation work, all working wastewater and spring water from the soil must be discharged outside the tunnel as excavation wastewater.
このような掘削廃水は一般にアルカリ性が強く、且つ大
小の固形分を多量に含んで濁っている。そこで、この廃
水は、固形分を除くと共にpH値を条令に定められた規正
値に合うまで下げる処理をしなければ、これを河川に放
流することができない。Such drilling wastewater is generally strongly alkaline and contains a large amount of large and small solids and is turbid. Therefore, this wastewater cannot be discharged into the river unless the solid content is removed and the pH value is lowered to meet the regulation value specified by the ordinance.
この廃水処理方法として従来は、濁った廃水を分離槽に
溜めて暫く放置し、粒径の大きな固形分を沈降させて分
離した後、この濁水をポンプにより濁水処理槽に移し、
凝集剤を添加して攪拌機により緩速で攪拌し、濁りを生
じている微粉固形分を泥状の凝集物として沈降させ、未
だpH値の高い上澄水をpH処理装置に送り、中和剤（例え
ばCO2ガス）を混和させてpH値を下げてから河川に放流
するようにしていた。Conventionally, as this wastewater treatment method, turbid wastewater is stored in a separation tank and left for a while, solid components having a large particle size are settled and separated, and then this turbid water is transferred to a turbid water treatment tank by a pump.
Add a flocculant and slowly stir with a stirrer to precipitate fine powder solids that are turbid as a mud-like flocculate, send supernatant water with a still high pH value to a pH treatment device, and neutralize ( For example, CO 2 gas) was mixed and the pH value was lowered before it was released into the river.
（考案が解決しようとする課題） このように廃水を濁らせている微粉固形分を凝集させて
沈降させる従来の濁水処理槽は、緩速回転する攪拌機に
より凝集剤を注入した廃水を攪拌するものであったか
ら、モータ等の高価な電気部品を必要とし、減速機、回
転腕等の機械構造部分が多くなり、処理槽が大型化し重
くなると共に製作費も高くなり、又工事現場への輸送、
現地での設置、撤去が簡単には行なえなかった。(Problems to be solved by the device) In the conventional turbid water treatment tank in which the fine powder solids that make the wastewater turbid are aggregated and settled, the wastewater in which the coagulant is injected is agitated by a slowly rotating agitator. Therefore, expensive electric parts such as motors are required, the number of mechanical structure parts such as speed reducers and rotating arms increases, the processing tank becomes large and heavy, the manufacturing cost also increases, and transportation to the construction site,
It could not be easily installed and removed locally.
（課題を解決するための手段） この考案は、濁水処理槽の凝集部内上部に設けた旋回槽
に接線方向に流入管を接続し、流入管から旋回槽内に圧
送される濁水をその流速を利用して旋回させて注入管か
ら注入する凝集剤と混合させるようにして、機械的な攪
拌機を使用しないで濁水と凝集剤との混合を良好に行な
えるようにして前記の課題を解決したものである。(Means for Solving the Problem) The present invention has an inflow pipe tangentially connected to a swirl tank provided in an upper part of the aggregating part of a turbid water treatment tank, so that the turbid water pressure-fed from the inflow pipe into the swirl tank can be controlled in its flow velocity. It solves the above-mentioned problem by swirling it and mixing it with the coagulant injected from the injection pipe so that muddy water and the coagulant can be mixed well without using a mechanical stirrer. Is.
（作用） 円筒形の旋回槽に接線方向に接続された流入管から廃水
をポンプにより流入させると共に旋回槽内に凝集剤を注
入すると、廃水は旋回運動を起して凝集剤とよく混合す
る。次いで第一構成の場合は、廃水は抜出筒内を上昇し
２本の抜出筒を通って旋回槽下方の凝集部にくい違い方
向に流出し、旋回運動を起して凝集剤との混合を更に良
くし、廃水中の濁りの成分である微粉固形分を凝集させ
る。泥状に凝集した微粉固形分は、濁水処理槽の下部の
排泥溝を通って凝集部に隣る分離部に入り、分離部を緩
速で上昇しつつ凝集固形分を分離し、上澄水は別に設け
られるpH値処理装置へ送られる。排泥溝に沈殿した泥状
の凝集固形分は、溝に設けた開閉蓋を開いて取り出され
る。(Operation) When waste water is introduced by a pump from an inflow pipe tangentially connected to a cylindrical swirl tank and a coagulant is injected into the swirl tank, the waste water causes a swirling motion and mixes well with the coagulant. Then, in the case of the first configuration, the wastewater rises in the extraction cylinder, flows through the two extraction cylinders, and flows out in a different direction to the aggregation part below the swirling tank, causing a swirling motion to mix with the coagulant. Is further improved, and fine powder solids, which are turbid components in waste water, are aggregated. The fine powder solids that have agglomerated in a mud form enter the separation unit adjacent to the agglomeration unit through the drainage mud groove in the lower part of the turbid water treatment tank, and slowly separate the agglomeration solids to separate the agglomerated solids. Is sent to a pH value processing device provided separately. The mud-like aggregated solid content settled in the sludge discharge groove is taken out by opening the opening / closing lid provided in the groove.
又、抜出筒、抜出管を設けない第二構成の場合は、旋回
槽内を旋回しつつ下降した濁水は、旋回槽下部の流出口
から出て旋回槽に沿って上昇し、旋回槽を囲む隔壁から
溢流して凝集部の下部に下降し、この間に旋回槽に注入
される凝集剤と良く混合し、分離部へ移動し、第一構成
と同様に処理される。Further, in the case of the second configuration in which the extraction cylinder and the extraction pipe are not provided, the turbid water that descends while swirling in the swirl tank rises along the swirl tank from the outlet at the bottom of the swirl tank, It overflows from the partition wall that surrounds the agglomerate and descends to the lower part of the aggregating section, is mixed well with the aggregating agent injected into the swirling tank during this time, moves to the separating section, and is treated in the same manner as the first configuration.
（実施例） 第１〜４図は本考案の第一構成を略示し、第１図は中央
部で縦断した側面図、第２図は平面図、第３図は第１図
のＡ−Ａ断面図、第４図は第１図のＢ−Ｂ断面図であ
る。(Embodiment) FIGS. 1 to 4 schematically show the first constitution of the present invention, FIG. 1 is a side view longitudinally cut at a central portion, FIG. 2 is a plan view, and FIG. 3 is AA of FIG. FIG. 4 is a sectional view taken along line BB in FIG.
濁水処理槽１には、凝集部1aと分離部1bとが隣接して設
けられている。The turbid water treatment tank 1 is provided with an aggregating portion 1a and a separating portion 1b adjacent to each other.
凝集部1aの上部には旋回槽２があり、旋回槽２の中心部
に上端を塞いだ抜出筒３が位置している。旋回槽２の上
部には流入管４が接線方向に接続されており、流入管４
の旋回槽２に接続される部分は太くなっていて、旋回槽
との間に流入管の開口面積を半減させる閉塞板６が固着
されている。The swirling tank 2 is located above the aggregating portion 1a, and the extraction cylinder 3 with its upper end closed is located at the center of the swirling tank 2. An inflow pipe 4 is tangentially connected to the upper part of the swirl tank 2, and the inflow pipe 4
The portion connected to the swirl tank 2 is thick, and a blocking plate 6 that reduces the opening area of the inflow pipe by half is fixed between the swirl tank 2 and the swirl tank 2.
抜出筒３の上部には直径方向に対向させて２本の抜出管
5a、5bの上端が接続されており、両管の下端は旋回槽２
の下方において第３図に見るように、くい違い方向に対
向している。凝集部の下部には第１図の前後方向に対向
する壁を傾斜させて設けてあり、この壁は下部がＶ状に
狭くなって凝集部を排泥溝７に通じさせ、排泥溝７は分
離部1bの下部に通じている。Two extraction pipes are provided in the upper part of the extraction pipe 3 so as to face each other in the diametrical direction.
The upper ends of 5a and 5b are connected, and the lower ends of both pipes are the swirling tank 2
As shown in FIG. 3 below, they are opposed to each other in the staggering direction. A wall facing the front-rear direction in FIG. 1 is provided at the lower part of the agglomerate portion so that the lower part of the wall is narrowed in a V shape so that the agglomerate part communicates with the sludge ditch 7, Communicates with the lower part of the separating part 1b.
分離部1bには、下部がＶ形に狭くなって排泥溝７に通じ
る外壁９の両側上部内面に、複数のＶ形ノッチ16を上縁
に形成した内壁８と底板10とが取付けられていて上澄水
流路が形成されている。この流路は排出口11により、別
に設けられるpH値調整装置に接続される。12は旋回槽２
に凝集部を注入する注入管、14は排泥溝７に設けた開閉
蓋、17は外壁９を支える支柱である。In the separating portion 1b, an inner wall 8 having a plurality of V-shaped notches 16 formed at the upper edge and a bottom plate 10 are attached to the inner surfaces on both sides of the outer wall 9 whose lower portion is narrowed into a V-shape and communicates with the sludge drainage groove 7. And a clear water flow channel is formed. This flow path is connected to a separately provided pH value adjusting device by an outlet 11. 12 is swirl tank 2
An injection pipe for injecting the agglomerated portion into, an opening / closing lid provided in the sludge drainage groove, and a column 17 for supporting the outer wall 9.
このように構成されるから、原水槽に貯溜して大きな固
形分を沈殿させ、残存する微粉固形分のため濁っている
廃水をポンプにより流入管４に圧送すると、廃水は閉塞
板６のため狭められた開口を通って流速を増して旋回槽
２に接線方向に流入し、注入管12から注入される凝集剤
と混合しつつ旋回して旋回槽２を下降し、抜出筒３に入
って上昇に移る。次に廃水は抜出管5a、5bに入って下降
し、凝集部1aの下部においてくい違い方向に流出し、凝
集部の下部においても旋回流を起して廃水と凝集剤とを
一層良好に混合させる。With this configuration, when large solids are stored in the raw water tank to deposit large solids and waste water that is turbid due to remaining fine powder solids is pumped to the inflow pipe 4, the waste water narrows due to the closing plate 6. The flow velocity is increased through the opening provided and flows tangentially into the swirling tank 2, swirls while mixing with the coagulant injected from the injection pipe 12, descends the swirling tank 2, and enters the withdrawing cylinder 3. Move on up. Next, the wastewater enters the extraction pipes 5a, 5b and descends, flows out in the crossing direction at the lower part of the aggregating portion 1a, and swirl flows also occur at the lower part of the aggregating portion to further improve the wastewater and the aggregating agent. Mix.
凝集剤を混入された廃水は、凝集部において微粉固形分
を凝集させてその一部を排泥溝７内に沈殿させ、残った
多くの凝集物は廃水と共に排泥溝７を通って隣りの分離
部1bに入る。The wastewater mixed with the coagulant coagulates the fine powder solids in the coagulation portion and precipitates a part thereof in the sludge ditch 7, and many remaining aggregates pass through the sludge ditch 7 along with the wastewater. Enter the separation unit 1b.
分離部1bに入った廃水は、分離部のＶ状の外壁９内を緩
速で上昇しつつ凝集物を分離沈殿させ、上澄水は内壁８
のＶ形ノッチ16を通って平均的に底板10の上に溢流し流
出口11まで流れて濁水処理槽１から取出されpH値調整装
置へ送られる。The wastewater that has entered the separation portion 1b rises slowly inside the V-shaped outer wall 9 of the separation portion to separate and settle the aggregates, and the supernatant water is the inner wall 8
On average, it flows through the V-shaped notch 16 onto the bottom plate 10, flows to the outlet 11, and is taken out from the turbid water treatment tank 1 and sent to the pH value adjusting device.
第５〜７図は本考案の第二構成を略示するもので、第５
図は中央部で縦断した側面図、第６図は平面図、第７図
は第６図のＣ−Ｃ断面図である。この第二構成も廃水の
持つ流速を利用して旋回流を起させ凝集剤の混合を行な
わせるようにしたものである。第一構成と同等部分は同
符号を用いると共に説明を省略して次にこれを説明す
る。5 to 7 schematically show the second construction of the present invention.
The figure is a side view longitudinally cut in the central portion, FIG. 6 is a plan view, and FIG. 7 is a sectional view taken along the line CC of FIG. This second configuration also uses the flow velocity of the waste water to generate a swirling flow to mix the coagulant. The same parts as those in the first configuration are designated by the same reference numerals, and the description thereof will be omitted.
第二構成の濁水処理槽も凝集部1a、分離部1bを隣接させ
て設けており、分離部1bは第一構成と同じである。The turbid water treatment tank of the second configuration is also provided with the aggregating section 1a and the separating section 1b adjacent to each other, and the separating section 1b is the same as the first configuration.
凝集部1aは、旋回槽2aの構造が第一構成と異なり、抜出
筒３、抜出管5a、5bが無く、代わりに下部に流出口13を
設け、旋回槽2aの下部と側方とを囲む隔壁15を設けてい
る。The aggregating portion 1a is different from the first structure in the structure of the swirling tank 2a, and does not have the extraction cylinder 3 and the extraction pipes 5a and 5b. Instead, the outlet 13 is provided in the lower part, and A partition wall 15 is provided to surround the.
出口半分を閉塞板６で塞いだ流入管４から旋回槽２の上
部に接線方向に流入した濁水は、旋回しつつ上方から注
入される凝集剤と混合し下降して流出口13から旋回槽外
に出て旋回槽2aと隔壁15との間を上昇する。この濁水は
隔壁15の上縁から溢れて凝集部1aの下部へ降下し、排泥
溝７へ入り、分離部1bへ移動して行き、泥状に凝集した
微粉固形分を沈降させる。The turbid water flowing tangentially into the upper part of the swirl tank 2 from the inflow pipe 4 whose outlet half is closed by the closing plate 6 is swirled and mixed with the coagulant injected from above and descends to flow from the outlet 13 to the outside of the swirl tank. And goes up between the swirling tank 2a and the partition wall 15. This turbid water overflows from the upper edge of the partition wall 15 and drops to the lower part of the agglomeration part 1a, enters the drainage ditch 7 and moves to the separation part 1b to settle the fine powder solids agglomerated in a mud form.
（考案の効果） （１）微粉固形分を含む濁水を、その流速を利用して旋
回槽内で旋回させ凝集剤と良好に混合させるから、混合
を良好にするための機械的攪拌装置（モータ、減速機、
攪拌腕等）が必要ない。(Effects of the Invention) (1) Turbid water containing fine powder solids is swirled in a swirling tank by utilizing its flow rate and mixed well with a flocculant, so that a mechanical stirring device (motor) for improving mixing is provided. ,Decelerator,
No need for stirring arms, etc.
（２）機械的攪拌装置が不要になるから、濁水処理装置
が小型、軽量にでき、製作費が低廉になる。(2) Since the mechanical stirring device is not required, the muddy water treatment device can be made small and lightweight, and the manufacturing cost can be reduced.
（３）小型、軽量であるから、工事現場への運搬、据つ
け等が容易になる。(3) Since it is small and lightweight, it can be easily transported to the construction site and installed.
図面は本考案の実施例を略示し、第１図は第一構成の縦
断側面図、第２図は同じく平面図、第３図は第１図のＡ
−Ａ断面図、第４図は第１図のＢ−Ｂ断面図、第５図は
第二構成の縦断側面図、第６図は同じく平面図、第７図
は第６図のＣ−Ｃ断面図である。 1:濁水処理槽、1a:凝集部、1b:分離部、3:抜出筒、4:流
入管、5a、5b:抜出管、6:閉塞板、7:排泥溝、8:内壁、
9:外壁、10:底板、11:排出口、12:注入管、13:流出口、
14:開閉蓋、15:隔壁、16:V形ノッチ、17:支柱。The drawings schematically show an embodiment of the present invention. Fig. 1 is a vertical sectional side view of the first structure, Fig. 2 is a plan view of the same, and Fig. 3 is A of Fig. 1.
-A sectional view, FIG. 4 is a BB sectional view of FIG. 1, FIG. 5 is a vertical sectional side view of the second configuration, FIG. 6 is a plan view of the same, and FIG. 7 is CC of FIG. FIG. 1: Turbid water treatment tank, 1a: Coagulation part, 1b: Separation part, 3: Extraction tube, 4: Inflow pipe, 5a, 5b: Extraction pipe, 6: Blocking plate, 7: Sludge discharge groove, 8: Inner wall,
9: outer wall, 10: bottom plate, 11: outlet, 12: injection pipe, 13: outlet,
14: Open / close lid, 15: Bulkhead, 16: V-shaped notch, 17: Post.
Claims (2)
凝集物取り出し用の開閉蓋（14）を設けた排泥溝（７）
で連通させ、凝集部（1a）内の上部には、接線方向に送
入管（４）を接続すると共に凝集剤注入管を通じさせた
円筒形の旋回槽（２）を設け、旋回槽（２）の中心部に
旋回槽の底との間を開けて抜出筒（３）を設け、抜出筒
（３）の上部に２本の抜出管（5a）（5b）の上端を接続
し、両抜出管の下端は旋回槽の下方の凝集部（1a）内で
くい違い方向に対向させて開口させ、分離部（1b）に
は、下部がＶ形に狭くなって排泥溝（７）に通じる外壁
（９）の上部内面に内壁（８）、底板（10）を取付け
て、内壁（８）の上縁を越えた水を排出口（11）に通じ
させる流路を形成して成る濁水処理槽。1. The bottom of the aggregating part (1a) and the separating part (1b) is
Sludge drainage groove (7) with an opening / closing lid (14) for removing aggregates
A cylindrical swirling tank (2) is provided in the upper part of the aggregating part (1a), which is connected to a feed pipe (4) in a tangential direction and through which a coagulant injection pipe is passed. ) Is provided with an extraction tube (3) at the center of the swirl tank, and the upper ends of the extraction tube (3) are connected to the upper ends of the two extraction tubes (5a) (5b). , The lower ends of both extraction pipes are made to face each other in the staggering direction in the lower part of the swirling tank (1a), and the lower part of the separation part (1b) is narrowed into a V shape and the sludge sludge ( The inner wall (8) and the bottom plate (10) are attached to the inner surface of the upper part of the outer wall (9) leading to 7) to form a flow path for communicating water beyond the upper edge of the inner wall (8) to the discharge port (11). Turbid water treatment tank consisting of.
凝集物取り出し用の開閉蓋（14）を設けた排泥溝（７）
で連通させ、凝集部（1a）内の上部には、接線方向に送
入管（４）を接続すると共に凝集剤注入管を通じさせた
円筒形で下部に流出口（13）を開設した旋回槽（2a）を
設け、旋回槽（2a）の下部と側方とを隔壁（15）で囲
み、分離部（1b）には、下部がＶ形に狭くなって排泥溝
（７）に通じる外壁（９）の上部内面に内壁（８）、底
板（10）を取付けて、内壁（８）の縁を越えた水を排出
口（11）に通じさせる流路を形成して成る濁水処理槽。2. The bottom of the aggregating part (1a) and the separating part (1b) is
Sludge drainage groove (7) with an opening / closing lid (14) for removing aggregates
A swirling tank in which the inlet pipe (4) is tangentially connected to the upper part of the coagulation part (1a) and the coagulant injection pipe is passed through and the outlet port (13) is opened in the lower part. (2a) is provided, the lower part and the side of the swirling tank (2a) are surrounded by a partition wall (15), and in the separating part (1b), the lower part is narrowed into a V shape and the outer wall leads to the sludge drainage groove (7). A muddy water treatment tank comprising an inner wall (8) and a bottom plate (10) attached to the inner surface of the upper part of (9) to form a flow path for communicating water beyond the edge of the inner wall (8) to a discharge port (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6189389U JPH0746322Y2 (en) | 1989-05-30 | 1989-05-30 | Turbid water treatment tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6189389U JPH0746322Y2 (en) | 1989-05-30 | 1989-05-30 | Turbid water treatment tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH033405U JPH033405U (en) | 1991-01-14 |
| JPH0746322Y2 true JPH0746322Y2 (en) | 1995-10-25 |
Family
ID=31590551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6189389U Expired - Lifetime JPH0746322Y2 (en) | 1989-05-30 | 1989-05-30 | Turbid water treatment tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0746322Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013255881A (en) * | 2012-06-12 | 2013-12-26 | Kenji Kitajima | Flocculant charging apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4532258B2 (en) * | 2004-12-24 | 2010-08-25 | 株式会社奥村組 | Turbid water treatment equipment |
| JP5914896B2 (en) * | 2009-04-20 | 2016-05-11 | 日本ソリッド株式会社 | Raw water treatment method |
-
1989
- 1989-05-30 JP JP6189389U patent/JPH0746322Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013255881A (en) * | 2012-06-12 | 2013-12-26 | Kenji Kitajima | Flocculant charging apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH033405U (en) | 1991-01-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0162650B1 (en) | Separation of components of a fluid mixture | |
| CN1090591C (en) | Vortex equipment for treating sewage | |
| CA1265267A (en) | Fluid clarifying assembly | |
| US20090301948A1 (en) | Method and apparatus for treating wastewater | |
| CN206985807U (en) | A kind of magnetic-coagulation integration Waste Water Treatment | |
| CN209652027U (en) | A kind of novel plus sand sedimentation basin with spiral stream guidance cylinder | |
| CN208229453U (en) | Downflow system high-efficiency coagulative precipitation tank | |
| CN205730485U (en) | A kind of efficient equipment for separating liquid from solid | |
| CN107381988A (en) | A kind of shield high concentration discards mud disposal system and method | |
| CN109081414A (en) | The high-efficiency clarifier of Mixing Technology is forced based on air swirl | |
| CN111804018A (en) | Sedimentation tank for sewage treatment | |
| CN110028195A (en) | System and technique for constructing tunnel wastewater treatment | |
| JPH0746322Y2 (en) | Turbid water treatment tank | |
| CN102358646B (en) | High-efficiency deposition device for mines | |
| CN101343100B (en) | Dual treating device for wastewater of construction | |
| CN205590382U (en) | Integration washed -out sand waste water recycling device | |
| CN108946890A (en) | A kind of sewage disposal system integrating purification with concentration | |
| CN105771337B (en) | A kind of efficient equipment for separating liquid from solid and its application | |
| CN210480952U (en) | High turbidity construction sewage treatment plant | |
| CN210394103U (en) | Small-size river lake is dredged and silt treatment facility | |
| CN209081508U (en) | A kind of high-efficiency clarifier for forcing Mixing Technology based on air swirl | |
| JPS5846604B2 (en) | Landfill method | |
| CN105461040A (en) | Treatment pool for solid-liquid medium separation | |
| CN109351000A (en) | A kind of clarifying basin for sewage treatment | |
| CN215403238U (en) | Centrifugal phosphorus removal device |