JP4092798B2 - Sedimentation tank equipment - Google Patents

Sedimentation tank equipment Download PDF

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Publication number
JP4092798B2
JP4092798B2 JP35005198A JP35005198A JP4092798B2 JP 4092798 B2 JP4092798 B2 JP 4092798B2 JP 35005198 A JP35005198 A JP 35005198A JP 35005198 A JP35005198 A JP 35005198A JP 4092798 B2 JP4092798 B2 JP 4092798B2
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Prior art keywords
pipe
sludge discharge
discharge pipe
raw water
tank
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JP35005198A
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Japanese (ja)
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JP2000167309A (en
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進 中村
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石川島環境エンジニアリング株式会社
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Description

【0001】
【発明の属する技術分野】
本発明は下水を処理する過程で用いる沈殿池槽設備に関するものである。
【0002】
【従来の技術】
活性汚泥法を採用した従来の水処理方式としては、図4に一例を示す如く、原水槽1内に入れられた下水の如き原水2を、流量調整槽3に一旦移し、次に、該流量調整槽3内の原水2を曝気槽4に入れ、ここで、散気管5を通しエアを吹き込むことにより原水2と活性汚泥を混合攪拌して、原水2中の有機物を活性汚泥に酸化、分解させるようにし、しかる後、上記活性汚泥と共に原水2を沈殿池6に移して活性汚泥を沈降させ、その上澄みとしての濾過水7を処理水として処理水槽8に回収させるようにし、一方、汚泥は汚泥排出管を通して取り出すようにしたものがある。9は吸引ポンプ、10はスクリーン、11はブロワ、12は脱水機を示す。
【0003】
上記沈殿池6を有する沈殿池槽設備としては、図5に示す如きものがある。すなわち、漏斗状に形成し且つ中心部に汚泥ピット13を形成した鉄筋コンクリート製の底盤14と、円筒状に形成した鉄筋コンクリート製の側壁15とからなる所謂円形沈殿池槽16を、上記底盤14が地中に埋設されるように築造して、槽内を沈殿池6とするようにしてある。
【0004】
上記沈殿池槽16には、図4に示す曝気槽4から導いた原水流入管17を、底盤14の下側を通し汚泥ピット13の位置まで導設して、原水2を沈殿池6に導入できるようにすると共に、汚泥排出管18を、汚泥ピット13の位置から底盤14の下側を通し沈殿池槽16外に設けた汚泥槽19の位置まで導設して、汚泥ピット13内に溜った汚泥20を排出できるようにし、更に、側壁15の上端部付近に溢流口21を設け、且つ該溢流口21から溢流した濾過水7を受ける溢流トラフ22を、側壁15の上端部外周に設けて、溢流トラフ22から図4に示す処理水槽8に濾過水7を送るようにしてある。
【0005】
又、上記沈殿池槽16内の中心部には、上部側及び下部側に原水2や汚泥20が自由に流通できる流通路23a及び23bを設けた支持筒23を、汚泥ピット13の位置から上方へ立ち上がるように設けると共に、該支持筒23の上端部に、水平に張り出すプラットホーム24を設け、該プラットホーム24上にモータ25を設置し、且つ該モータ25により回転駆動されるスクリュー26を上記支持筒23内に配置して、攪拌装置27を構成し、上記スクリュー26の回転により、下部側の流通路23bを通り支持筒23内に流入した原水2を上昇させて上部側の流通路23aから支持筒23外へ流出させるようにしてある。
【0006】
更に、上記沈殿池槽16の側壁15の上端面に、走行台車28を搭載させ、該走行台車28とプラットホーム24の中心部に設置した軸受29との間に架構30を渡し、該架構30の中間部より垂下させた掻寄せ支柱31の下端に、アーム32を介して掻寄せ板33を取り付けて、集泥機34を構成し、上記走行台車28を、走行用モータ28aの駆動で円周方向に走行させることにより、架構30、掻寄せ支柱31、アーム32を介し掻寄せ板33を回動させて、底盤14上の汚泥20を掻寄せて汚泥ピット13内に集められるようにしてある。
【0007】
【発明が解決しようとする課題】
ところが、上記沈殿池槽設備の場合、原水流入管17や汚泥排出管18としては、鋼管、鋳鉄管等が使用されるが、これら原水流入管17や汚泥排出管18は沈殿池槽16の底盤14の下を通る地中埋設構造となるため、保守が困難であり、特に、鋼管製とした場合は、長期間使用すると腐食等を起す可能性が高く、水漏れが発生しても補修が極めて困難であり、延いては、水漏れに起因して周辺の地盤沈下を生じさせる問題が惹起される。
【0008】
そこで、本発明は、原水流入管及び汚泥排出管の保守や補修を容易に行うことができるようにしようとするものである。
【0009】
【課題を解決するための手段】
本発明は、上記課題を解決するために、コンクリート製の底盤と側壁とからなる沈殿池槽を、上記底盤が地中に埋設されるように築造し、原水流入管及び汚泥排出管を、上記側壁を貫通させて槽内に導き上記底盤上を這わせて槽内中心部に先端部を位置させるように配管し、且つ上記底盤の上面に、無筋コンクリートによる内底盤を上記底盤上に配管された原水流入管や汚泥排出管の外径寸法よりも高くなるような厚みで周方向に一様に布設して、上記原水流入管及び汚泥排出管を無筋コンクリートで覆い、該内底盤内に上記原水流入管及び汚泥排出管を収納させるようにした構成とする。
【0010】
原水流入管や汚泥排出管の保守や補修が必要となった場合は、内底盤の配管収納個所の表面だけを部分的に除去するようにする。これにより、原水流入管や汚泥排出管を露出させることができるようになるので、槽内からの保守や補修が容易となる。
【0011】
又、内底盤内への原水流入管及び汚泥排出管の収納を、内底盤に予め原水流入管汚泥排出管を収納できるスペースを有する配管収納用凹部をそれぞれ形成して、該配管収納用凹部内に原水流入管汚泥排出管を収納させ、且つ該配管収納用凹部内と原水流入管及び配管収納用凹部内と汚泥排出管との隙間に充填材を充填させると共に該充填材で原水流入管及び汚泥排出管の上面を覆うようにした構成とすることにより、内底盤の一部を除去することなく、充填材だけを取り去るようにすれば、原水流入管や汚泥排出管を露出させることができるので、復旧作業がより容易となる。
【0012】
更に、配管収納用凹部に充填材を充填することに代えて、配管収納用凹部に蓋を着脱自在に配置して該配管収納用凹部を塞ぐようにし、該配管収納用凹部と蓋との間に原水流入管及び汚泥排出管を収納させるようにした構成とすることにより、蓋の着脱だけで配管収納用凹部を開閉できるようになる。
【0013】
【発明の実施の形態】
以下、本発明の実施の形態を図面を参照して説明する。
【0014】
図1(イ)(ロ)は本発明の実施の一形態を示すもので、図5に示したと同様な構成としてある沈殿池槽設備において、従来、沈殿池槽16の底盤14の下を通して地中に埋設するようにしていた原水流入管17及び汚泥排出管18を、共に、沈殿池槽16の側壁15を貫通させて槽内に導き、更に、底盤14上を這わせて槽内の中心部に先端部を位置させるように配管し、且つこれら原水流入管17及び汚泥排出管18が底盤14上に直接露出しないように、底盤14の上面に無筋コンクリートによる内底盤35を原水流入管17や汚泥排出管18の外径よりも高くなるような厚みで周方向に一様に布設して、原水流入管17及び汚泥排出管18の上面を無筋コンクリートで覆い内底盤35の中に上記原水流入管17及び汚泥排出管18を収納させるようにする。
【0015】
なお、上記原水流入管17及び汚泥排出管18は、底盤14上に配置した際に該底盤14に固定してもよく、又、単に載置させるだけでもよい。その他の構成は図5に示したものと同じであり、同一部分には同一符号が付してある。
【0016】
原水流入管17及び汚泥排出管18は、底盤14上に配設されているが、該底盤14の上面に一様な厚みに布設されている内底盤35内に収納されているため、集泥機34の掻寄せ板33の運転に支障を来すことはない。
【0017】
原水流入管17や汚泥排出管18の保守や補修を行う場合は、内底盤35内に収納されている原水流入管17や汚泥排出管18の上方部の内底盤35表面を部分的に除去し原水流入管17や汚泥排出管18を沈殿池6内に露出させて行うようにする。この場合、内底盤35は無筋コンクリート製であることから容易に除去することができ、原水流入管17や汚泥排出管18の上方部のみを部分的に除去するだけで原水流入管17や汚泥排出管18を露出させることができるので、保守や補修、更には更新等を楽に行うことができる。又、保守や補修の終了後は、除去した部分だけを無筋コンクリートで修復させるようにすればよいので、復旧作業も容易に行うことができ、コスト的にも有利となる。
【0018】
次に、図2は本発明の実施の他の形態として、原水流入管17、汚泥排出管28を内底盤35内に収納する仕方の他の形態を示すもので、内底盤35を布設する際に、予め原水流入管17、汚泥排出管18(図では原水流入管17の部分についてのみ示す)を収納できるスペースを有する配管収納用凹部36をそれぞれ形成し、該配管収納用凹部36内に原水流入管17、汚泥排出管18を収納させて、隙間にモルタル等の充填材37を充填するようにしたものである。
【0019】
図2に示すようにすると、原水流入管17や汚泥排出管18の保守や補修時に、内底盤35自体は壊さずに、充填材37だけを取り去ることで原水流入管17や汚泥排出管18を露出させることができるので、復旧作業がより容易となる。
【0020】
次いで、図3は本発明の実施の更に他の形態を示すもので、図2に示したと同様な構成において、配管収納用凹部36内に充填材37を充填することに代えて、配管収納用凹部36の上面部に、鉄板製あるいは樹脂製の如き蓋38を着脱自在に配置して配管収納用凹部36を塞ぐようにして原料流入管17及び汚泥排出管18を収納させるようにしたものである。
【0021】
図3に示すようにすると、蓋38の着脱により配管収納用凹部36を塞いだり、開放したりすることができるので、原料流入管17や汚泥排出管18の保守、補修作業や復旧作業を更に容易に行うことができる。
【0022】
なお、図2の実施の形態では、配管収納用凹部36の隙間に充填する充填材37としてモルタルを用いるようにした場合を示したが、ウレタンフォーム等、他のものを用いてもよいこと、その他本発明の要旨を逸脱しない範囲内において種々変更を加え得ることは勿論である。
【0023】
【発明の効果】
以上述べた如く、本発明の沈殿池槽設備によれば、コンクリート製の底盤と側壁とからなる沈殿池槽を、上記底盤が地中に埋設されるように築造し、原水流入管及び汚泥排出管を、上記側壁を貫通させて槽内に導き上記底盤上を這わせて槽内中心部に先端部を位置させるように配管し、且つ上記底盤の上面に、無筋コンクリートによる内底盤を上記底盤上に配管された原水流入管や汚泥排出管の外径寸法よりも高くなるような厚みで周方向に一様に布設して、上記原水流入管及び汚泥排出管を無筋コンクリートで覆い、該内底盤内に上記原水流入管及び汚泥排出管を収納させるようにした構成としてあるので、原水流入管や汚泥排出管の保守、補修を行うときに、これらの配管が埋設されている個所の内底盤を部分的に除去するだけで済み、又、復旧も容易に行うことができることからコスト的にも有利となり、更に、内底盤内への原水流入管及び汚泥排出管の収納を、内底盤に予め原水流入管汚泥排出管を収納できるスペースを有する配管収納用凹部をそれぞれ形成して、該配管収納用凹部内に原水流入管汚泥排出管を収納させ、且つ該配管収納用凹部内と原水流入管及び配管収納用凹部内と汚泥排出管との隙間に充填材を充填させると共に該充填材で原水流入管及び汚泥排出管の上面を覆うようにした構成とすることにより、充填材を取り去るだけで配管の保守、補修を行うことができるので、復旧作業がより容易となり、一方、配管収納用凹部に充填材を充填することに代えて、配管収納用凹部に蓋を着脱自在に配置して該配管収納用凹部を塞ぐようにし、該配管収納用凹部と蓋との間に原水流入管及び汚泥排出管を収納させるようにした構成とすることによって、蓋を脱着するだけで配管収納用凹部を開閉できるので、配管の保守、補修作業や復旧作業を更に容易に行うことができる、という優れた効果を発揮する。
【図面の簡単な説明】
【図1】本発明の沈殿池槽設備の実施の一形態を示すもので、(イ)は全体の概要図、(ロ)は(イ)のA−A方向拡大断面図である。
【図2】本発明の実施の他の形態を示すもので、図1(ロ)に相当する断面図である。
【図3】本発明の実施の更に他の形態を示すもので、図1(ロ)に相当する断面図である。
【図4】水処理方式の一例を示す概略図である。
【図5】沈殿池槽設備の一例を示す概要図である。
【符号の説明】
14 底盤
15 側壁
16 沈殿池槽
17 原水流入管
18 汚泥排出管
35 内底盤
36 配管収納用凹部
37 充填材
38 蓋
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a settling tank facility used in the process of treating sewage.
[0002]
[Prior art]
As an example of a conventional water treatment method adopting the activated sludge method, as shown in FIG. 4, raw water 2 such as sewage put in the raw water tank 1 is temporarily transferred to the flow rate adjusting tank 3, and then the flow rate The raw water 2 in the adjustment tank 3 is put into the aeration tank 4, where the raw water 2 and the activated sludge are mixed and stirred by blowing air through the air diffuser 5 to oxidize and decompose the organic matter in the raw water 2 into the activated sludge. After that, the raw water 2 is transferred to the sedimentation basin 6 together with the activated sludge, and the activated sludge is allowed to settle, and the filtered water 7 as the supernatant is recovered in the treated water tank 8 as treated water, There is something that is taken out through the sludge discharge pipe. 9 is a suction pump, 10 is a screen, 11 is a blower, and 12 is a dehydrator.
[0003]
As a settling tank facility having the settling tank 6, there is one as shown in FIG. 5. That is, a so-called circular sedimentation basin tank 16 formed of a reinforced concrete bottom plate 14 formed in a funnel shape and having a sludge pit 13 formed in the center and a reinforced concrete side wall 15 formed in a cylindrical shape is formed on the bottom plate 14. It is constructed so as to be buried inside, and the inside of the tank is set as a sedimentation tank 6.
[0004]
In the settling tank 16, a raw water inflow pipe 17 led from the aeration tank 4 shown in FIG. 4 is led to the position of the sludge pit 13 through the lower side of the bottom plate 14, and the raw water 2 is introduced into the settling tank 6. In addition, the sludge discharge pipe 18 is led from the position of the sludge pit 13 to the position of the sludge tank 19 provided outside the sedimentation basin tank 16 through the bottom of the bottom plate 14 and collected in the sludge pit 13. Furthermore, an overflow trough 22 is provided in the vicinity of the upper end of the side wall 15, and an overflow trough 22 that receives filtered water 7 overflowing from the overflow port 21 is provided at the upper end of the side wall 15. The filtered water 7 is sent from the overflow trough 22 to the treated water tank 8 shown in FIG.
[0005]
A support cylinder 23 provided with flow passages 23a and 23b through which the raw water 2 and sludge 20 can freely flow on the upper side and the lower side is disposed above the sludge pit 13 at the center in the settling tank 16. A platform 24 that extends horizontally at the upper end of the support cylinder 23, a motor 25 is installed on the platform 24, and the screw 26 that is rotationally driven by the motor 25 is supported by the above-described support cylinder 23. It arrange | positions in the pipe | tube 23, comprises the stirring apparatus 27, and the rotation of the said screw 26 raises the raw | natural water 2 which flowed in in the support pipe | tube 23 through the lower flow path 23b, and from the upper flow path 23a. It is made to flow out of the support cylinder 23.
[0006]
Further, a traveling carriage 28 is mounted on the upper end surface of the side wall 15 of the settling basin tank 16, and a frame 30 is passed between the traveling carriage 28 and a bearing 29 installed at the center of the platform 24. A scraping plate 33 is attached to the lower end of the scraping column 31 suspended from the intermediate portion through an arm 32 to constitute a mud collector 34, and the traveling carriage 28 is circumferentially driven by a traveling motor 28a. By traveling in the direction, the scraping plate 33 is rotated via the frame 30, the scraping column 31, and the arm 32, and the sludge 20 on the bottom panel 14 is scraped and collected in the sludge pit 13. .
[0007]
[Problems to be solved by the invention]
However, in the case of the above settling tank equipment, steel pipes, cast iron pipes, etc. are used as the raw water inflow pipe 17 and the sludge discharge pipe 18. The raw water inflow pipe 17 and the sludge discharge pipe 18 are the bottom plate of the settling tank 16. Maintenance is difficult due to the underground structure that passes under 14, especially when it is made of steel pipe, it is likely to cause corrosion, etc. if used for a long time, and repair is possible even if water leaks. This is extremely difficult, and as a result, the problem of causing ground subsidence due to water leakage is caused.
[0008]
Therefore, the present invention is intended to facilitate maintenance and repair of the raw water inflow pipe and the sludge discharge pipe.
[0009]
[Means for Solving the Problems]
In order to solve the above problems, the present invention constructs a sedimentation basin tank composed of a concrete bottom plate and side walls so that the bottom plate is buried in the ground, and the raw water inflow pipe and the sludge discharge pipe are by penetrating the side wall leads into the tank by crawl the bottom surface plate and pipe so as to position the tip in the center tank, and the upper surface of the bottom plate, the inner bottom plate by plain concrete, in the bottom surface plate and uniformly laying circumferentially becomes higher such thickness than the outer diameter dimension of the pipe has been water inlet pipe and the sludge discharge pipe, covers the water inlet pipe and the sludge discharge pipe with unreinforced concrete, the inner bottom plate The raw water inflow pipe and the sludge discharge pipe are housed inside.
[0010]
When maintenance or repair of the raw water inflow pipe or sludge discharge pipe is necessary, only the surface of the piping storage location on the inner bottom panel should be partially removed. As a result, the raw water inflow pipe and the sludge discharge pipe can be exposed, which facilitates maintenance and repair from the inside of the tank.
[0011]
Further, the housing of the water inlet pipe and the sludge discharge pipe to the inner bottom panel in advance water inlet pipe on the inner bottom plate, the piping accommodating recess having a space for accommodating the sludge discharge pipe formed respectively, the respective pipes for housing water inlet pipe into the recess, to house the sludge discharge pipe, the raw water in the fill material with is and filled with a filler in the gap between the pipe accommodating the recess and raw water inlet pipe and the pipe for housing the recess and the sludge discharge pipe by that to cover the upper surface of the inlet pipe and the sludge discharge pipe arrangement, without removing a portion of the inner bottom plate, if so removing only filler, exposing the water inlet pipe and the sludge discharge pipe The recovery work becomes easier.
[0012]
Further, instead of filling the piping storage recess with a filler, a lid is detachably disposed in the piping storage recess so as to close the piping storage recess, and between the piping storage recess and the lid. raw water by the inlet tube and configurations so as to house the sludge discharge pipe, it becomes possible to open and close the pipe receiving recess only detachable lid on.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0014]
1 (a) and 1 (b) show an embodiment of the present invention. In a sedimentation basin facility having a configuration similar to that shown in FIG. Both the raw water inflow pipe 17 and the sludge discharge pipe 18 that are intended to be buried inside are guided through the side wall 15 of the settling basin tank 16 into the tank, and are further turned over the bottom plate 14 to center the tank. The inner bottom plate 35 made of unreinforced concrete is placed on the upper surface of the bottom plate 14 so that the raw water inflow tube 17 and the sludge discharge pipe 18 are not directly exposed on the bottom plate 14. 17 and the sludge discharge pipe 18 are uniformly laid in the circumferential direction so as to be thicker than the outer diameter, and the upper surfaces of the raw water inflow pipe 17 and the sludge discharge pipe 18 are covered with unreinforced concrete in the inner bottom plate 35. The raw water inflow pipe 17 and the sludge discharge pipe 18 are So as to be accommodated.
[0015]
The raw water inflow pipe 17 and the sludge discharge pipe 18 may be fixed to the bottom board 14 when placed on the bottom board 14 or simply placed. Other configurations are the same as those shown in FIG. 5, and the same reference numerals are given to the same portions.
[0016]
Although the raw water inflow pipe 17 and the sludge discharge pipe 18 are disposed on the bottom board 14, the raw water inflow pipe 17 and the sludge discharge pipe 18 are accommodated in an inner bottom board 35 provided with a uniform thickness on the upper surface of the bottom board 14. The operation of the scraping plate 33 of the machine 34 is not hindered.
[0017]
When maintenance or repair of the raw water inflow pipe 17 or the sludge discharge pipe 18 is performed, the surface of the inner bottom plate 35 above the raw water inflow pipe 17 or the sludge discharge pipe 18 accommodated in the inner bottom plate 35 is partially removed. The raw water inflow pipe 17 and the sludge discharge pipe 18 are exposed in the settling basin 6. In this case, since the inner bottom board 35 is made of unreinforced concrete, it can be easily removed, and the raw water inflow pipe 17 and sludge can be removed by only partially removing the upper part of the raw water inflow pipe 17 and sludge discharge pipe 18. Since the discharge pipe 18 can be exposed, maintenance, repair, and renewal can be easily performed. Further, after the maintenance or repair is completed, it is only necessary to restore the removed portion with unreinforced concrete, so that the restoration work can be easily performed, which is advantageous in terms of cost.
[0018]
Next, FIG. 2 shows another embodiment of the present invention in which the raw water inflow pipe 17 and the sludge discharge pipe 28 are housed in the inner bottom board 35. When the inner bottom board 35 is laid, FIG. In addition, a pipe storage recess 36 having a space for storing the raw water inflow pipe 17 and the sludge discharge pipe 18 (only the raw water inflow pipe 17 is shown in the figure) is formed in advance, and the raw water in the pipe storage recess 36 is formed. The inflow pipe 17 and the sludge discharge pipe 18 are accommodated, and the gap 37 is filled with a filler 37 such as mortar.
[0019]
As shown in FIG. 2, when the raw water inflow pipe 17 and the sludge discharge pipe 18 are maintained and repaired, the inner bottom plate 35 itself is not broken, and only the filler 37 is removed to remove the raw water inflow pipe 17 and the sludge discharge pipe 18. Since it can be exposed, restoration work becomes easier.
[0020]
Next, FIG. 3 shows still another embodiment of the present invention. In the same configuration as that shown in FIG. A lid 38 such as an iron plate or resin is detachably disposed on the upper surface of the recess 36 so as to close the pipe storage recess 36 and accommodate the raw material inflow pipe 17 and the sludge discharge pipe 18. is there.
[0021]
As shown in FIG. 3, the concave portion 36 for pipe storage can be closed or opened by attaching and detaching the lid 38, so that maintenance, repair work and restoration work for the raw material inflow pipe 17 and the sludge discharge pipe 18 can be further performed. It can be done easily.
[0022]
In the embodiment of FIG. 2, the case where mortar is used as the filler 37 filled in the gap of the pipe housing recess 36 is shown, but other things such as urethane foam may be used, Of course, various changes can be made without departing from the scope of the present invention.
[0023]
【The invention's effect】
As described above, according to the sedimentation basin equipment of the present invention, the sedimentation basin composed of a concrete bottom plate and side walls is constructed so that the bottom plate is buried in the ground, and the raw water inflow pipe and sludge discharge are constructed. Pipe the pipe through the side wall and lead it into the tank so that the top of the bottom board is turned and the tip is located in the center of the tank, and the inner bottom board of unreinforced concrete is placed on the upper surface of the bottom board . and uniformly laying circumferentially thickness such that is higher than the outside diameter dimension of the bottom water inlet pipe is the pipe on the board and sludge discharge pipe, covers the water inlet pipe and the sludge discharge pipe with unreinforced concrete Since the raw water inflow pipe and the sludge discharge pipe are housed in the inner bottom plate, when the raw water inflow pipe and the sludge discharge pipe are maintained and repaired, these pipes are buried. You only need to partially remove the inner bottom of Furthermore, recovery is also becomes advantageous in terms of cost because it can be easily carried out, further, the housing of the water inlet pipe and the sludge discharge pipe to the inner bottom panel in advance water inlet pipe on the inner bottom plate, a sludge discharge pipe can hold to form a pipe receiving recess having a space, respectively, the raw water inlet pipe to the respective pipe accommodating recess, to house the sludge discharge pipe, and a piping for housing in the recess and the raw water inlet pipe and the pipe for housing the recess with a structure in which to cover the upper surface of the water inlet pipe and the sludge discharge pipe in the filling material causes a gap to fill the filling material with the sludge discharge pipe, pipe maintenance, repair performed by simply removing the filler Therefore, the restoration work becomes easier, and instead of filling the concave portion for pipe storage with a filler, a lid is detachably disposed in the concave portion for pipe storage so as to close the concave portion for pipe storage. The pipes By the structure where the water inlet pipe and the sludge discharge pipe was set to be accommodated between the use recess and the cover, it is possible to open and close only a pipe receiving recess to desorb the lid, pipe maintenance, repair work and recovery An excellent effect that the work can be performed more easily is exhibited.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 shows an embodiment of a settling basin facility according to the present invention, in which (A) is a schematic diagram of the whole, and (B) is an enlarged cross-sectional view in the AA direction of (A).
FIG. 2 shows another embodiment of the present invention and is a cross-sectional view corresponding to FIG.
FIG. 3 shows still another embodiment of the present invention and is a cross-sectional view corresponding to FIG.
FIG. 4 is a schematic view showing an example of a water treatment system.
FIG. 5 is a schematic diagram showing an example of a settling tank facility.
[Explanation of symbols]
14 Bottom plate 15 Side wall 16 Sedimentation basin tank 17 Raw water inflow pipe 18 Sludge discharge pipe 35 Inner bottom plate 36 Piping storage recess 37 Filler 38 Cover

Claims (3)

コンクリート製の底盤と側壁とからなる沈殿池槽を、上記底盤が地中に埋設されるように築造し、原水流入管及び汚泥排出管を、上記側壁を貫通させて槽内に導き上記底盤上を這わせて槽内中心部に先端部を位置させるように配管し、且つ上記底盤の上面に、無筋コンクリートによる内底盤を上記底盤上に配管された原水流入管や汚泥排出管の外径寸法よりも高くなるような厚みで周方向に一様に布設して、上記原水流入管及び汚泥排出管を無筋コンクリートで覆い、該内底盤内に上記原水流入管及び汚泥排出管を収納させるようにした構成を有することを特徴とする沈殿池槽設備。A sedimentation basin tank consisting of a concrete bottom and side walls is constructed so that the bottom is buried in the ground, and the raw water inflow pipe and sludge discharge pipe are guided through the side walls into the tank and above the bottom the so laid piping so as to position the tip in the center tank, and out of the upper surface of the bottom plate, the inner bottom plate by plain concrete, water inlet pipe and the sludge discharge pipe that is plumbed to the bottom surface plate and uniformly laying circumferentially becomes higher such thickness than the diameter dimension, it covers the water inlet pipe and the sludge discharge pipe with unreinforced concrete, housing the water inlet pipe and the sludge discharge pipe to the inner bottom panel in A sedimentation basin facility characterized by having a configuration adapted to be made. 内底盤内への原水流入管及び汚泥排出管の収納を、内底盤に予め原水流入管汚泥排出管を収納できるスペースを有する配管収納用凹部をそれぞれ形成して、該配管収納用凹部内に原水流入管汚泥排出管を収納させ、且つ該配管収納用凹部内と原水流入管及び配管収納用凹部内と汚泥排出管との隙間に充填材を充填させると共に該充填材で原水流入管及び汚泥排出管の上面を覆うようにした請求項1記載の沈殿池槽設備。The housing of the water inlet pipe and the sludge discharge pipe to the inner bottom panel in advance water inlet pipe to the inner bottom plate, to form respectively a pipe accommodating recess having a space for accommodating the sludge discharge pipe, the respective pipes for housing the recess The raw water inflow pipe and the sludge discharge pipe are accommodated, and the gap between the pipe storage recess and the raw water inflow pipe and the pipe storage recess and the sludge discharge pipe is filled with the raw water inflow pipe with the filler. 2. The sedimentation tank apparatus according to claim 1, wherein the upper surface of the sludge discharge pipe is covered . 配管収納用凹部に充填材を充填することに代えて、配管収納用凹部に蓋を着脱自在に配置して該配管収納用凹部を塞ぐようにし、該配管収納用凹部と蓋との間に原水流入管及び汚泥排出管を収納させるようにした請求項2記載の沈殿池槽設備。Instead of filling the piping storage recess with a filler, a lid is detachably disposed in the piping storage recess so as to close the piping storage recess, and the raw water is provided between the piping storage recess and the lid. The sedimentation tank apparatus according to claim 2, wherein the inflow pipe and the sludge discharge pipe are accommodated.
JP35005198A 1998-12-09 1998-12-09 Sedimentation tank equipment Expired - Fee Related JP4092798B2 (en)

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JP35005198A JP4092798B2 (en) 1998-12-09 1998-12-09 Sedimentation tank equipment

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Application Number Priority Date Filing Date Title
JP35005198A JP4092798B2 (en) 1998-12-09 1998-12-09 Sedimentation tank equipment

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JP4092798B2 true JP4092798B2 (en) 2008-05-28

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EP2607236A3 (en) * 2011-12-23 2017-11-22 Dreamscience Propulsion Limited Apparatus and method for paragliders

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CN104174191B (en) * 2014-08-18 2017-04-12 南京工业大学 Integrated grit chamber for treating rainwater and treatment method
CN114259759A (en) * 2021-12-22 2022-04-01 北京城市排水集团有限责任公司 Sand removing device and sand removing method for aeration grit chamber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607236A3 (en) * 2011-12-23 2017-11-22 Dreamscience Propulsion Limited Apparatus and method for paragliders

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