JP4747331B2 - Upflow type tilting device in wastewater treatment equipment - Google Patents
Upflow type tilting device in wastewater treatment equipment Download PDFInfo
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- JP4747331B2 JP4747331B2 JP2000375265A JP2000375265A JP4747331B2 JP 4747331 B2 JP4747331 B2 JP 4747331B2 JP 2000375265 A JP2000375265 A JP 2000375265A JP 2000375265 A JP2000375265 A JP 2000375265A JP 4747331 B2 JP4747331 B2 JP 4747331B2
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Description
【０００１】
【発明の属する技術】
本発明は、廃水処理装置における上向流式傾斜板装置である。発明の詳細を図１に示す。
上向流式傾斜板装置は、沈殿池（７）、排水トラフ（１）、傾斜板（２）、上澄水トラフ（３）、集水ノズル（４）、水ノズル（５）、排水弁（８）、給水弁（９）、により構成される。
図１に示す通り、傾斜板（２）は、沈殿池（７）の中に設置される。傾斜板（２）の上部は、水面Ｌ−１より上部に設置する。傾斜板（２）の処理水を集水するために上澄水トラフ（３）がある。上澄水トラフ（３）内の水面Ｌ−３は、水面Ｌ−１より下部にある。又、上澄水トラフ（３）には集水ノズル（４）が付いている。
集水ノズル（４）の上澄水トラフ（３）への取り付け位置は、横、底、両側面、とある。又、取り付けレベルもＬ−３の上部、下部のケースがある。
原水は、傾斜板（２）の下部より流入し傾斜板（２）の間を上方向へ流出する。原水中の固形物は、傾斜板（２）の表面に沈殿する。傾斜板（２）の表面に沈殿した固形物は傾斜板（２）の表面をずり落ち、沈殿池の底へ沈殿する。傾斜板（２）の間を通過した処理水は上澄水トラフ（３）に設置された集水ノズル（４）より上澄水トラフ（３）内へ流出し、沈殿池（７）外へ流出する。
排水トラフ（１）は傾斜板（２）の直角方向の側面に隣接し設置され、傾斜板（２）の間の処理水を越流させ流入させる構造とする。図１は側面に排水トラフ（１）を設置した例を示している。排水トラフ（１）の排水を沈殿池（７）の外へ排水する配管の途中に排水弁（８）を設置する。
排水弁（８）を開くと排水トラフ（１）内の水位のレベルＬ−２がレベルＬ−１より低下し、傾斜板を通過した原水の多くは傾斜板の洗浄水となり、処理水の多くは、上澄水トラフ（３）から排水トラフ（１）へ切り替わる。排水トラフ（１）への洗浄水（排水水量）は集水ノズル（４）の通過量より多い。その為、急に傾斜板（２）間の流速が増大し傾斜板（２）に付着した固形物が剥離する。この事により傾斜板（２）に付着している固形物は、剥離し洗浄水と共に排水トラフ（１）へ除去される。
傾斜板（２）の間の水面に浮遊している浮遊物（６）は、排水トラフ（１）に設置した排水弁（８）を開けることにより、傾斜板と直角方向の排水トラフ（１）方向への流れが発生するので、処理水と共に排水トラフ（１）に排出、除去できる。この時、排水トラフ（１）越流部の上面は傾斜板（２）の上部より下にあるが、
排水弁（８）の型式は、処理水の流出を開閉出来れば良く、ゲート、サイホン装置でも良い。
排水トラフ（１）排水量は越流部の上部とレベルＬ−１よりの深さにより決定される。通常、この排水トラフ（１）への排水量を越流負荷と言う。固形物の除去に必要な水量は、排水の種類により異なる。排水の種類が下水の場合、必要な越流負荷は５００ｍ３／ｍ日以上である。
傾斜板（２）の間の水面上、出来るだけ排水トラフと離れた反対方向に水ノズル（４）を設置する。
給水弁（９）を開き、水ノズル（４）より圧力水を排水トラフ（１）の方向に噴射する事により、傾斜板（２）間の表面水は排水トラフ（１）への流れを生じ、浮遊物（６）が排水トラフ（１）へ流出する効果を促進させる。尚、水ノズル（５）への給水は給水弁（９）を開閉して行う。給水弁の開閉は排水弁（８）の開閉に連動させる。
尚、上澄水トラフ（３）と排水トラフ（１）は必ずしも沈殿池（７）と一体にする必要はない。又、排水トラフ（１）の上部位置は、水面Ｌ−１が傾斜板（２）の上部にある場合、傾斜板（２）の上部よりより上部にある。そして、排水トラフ（１）の上部位置は、可変式としても良い。
沈殿池（７）の池幅が広い場合は、傾斜板（２）上部の上澄水トラフ（３）と排水トラフ（１）は交互に複数設置して対応する。
【０００２】
【従来の技術】
従来の技術を図２に示す。従来の技術は排水トラフ（１）が無いので傾斜板（２）の間に浮遊した浮遊物（６）や、傾斜板（２）に付着した固形物は、沈殿池（７）を空にし、傾斜板（２）を圧力水等で洗浄し、固形物を除去する必要があり、維持管理が困難であり又、多くの時間がかかった。
【０００３】
【発明が解決しようとする課題】
従来の技術では、傾斜板（２）の表面に付着した固形物の除去、又、傾斜板（２）の間に浮遊した浮遊物（６）の除去を行う時、沈殿池を空にし、洗浄していた。
本発明は、排水トラフ（１）、排水弁（８）を上澄水トラフ（３）とは別に設置し、処理水の流出先を排水弁（８）を開とすることにより、処理水トラフ（３）から排水トラフ（１）へ切り替えるえることにある。
排水弁（８）を開とすると、処理水は排水トラフ（１）へ流出する。この時、処理水量は増大する。その結果、傾斜板（２）の間を通過する処理水の流速を急に上げることが出来る。傾斜板（２）の間の流速を急に上げることにより傾斜板（２）に付着した固形物を傾斜板（２）より剥離させ、傾斜板（２）の付着汚泥が除去出来ることになる。又、傾斜板（２）間の表面水は排水トラフ（１）に引かれる。この事により浮遊物（６）を排水トラフ（１）へ排出除去出来る。又、水ノズル（５）を設置することにより、浮遊物（６）の破砕ができ、浮遊物（６）の流出効果が促進できる。
以上により沈殿池を空にせず傾斜板（２）の洗浄が出来る
【０００４】
【課題を解決するための手段】
本発明は、上向流傾斜板装置に排水トラフ（１）と水ノズル（５）を設置する事にある。
【０００５】
【発明の実施形態】
次に本発明の実施形態について説明する
第Ｉ例
図１にその実施したときの平面、及びＣ−Ｃ断面の状態を示す。図３は、図１のＡ−Ａ断面、Ｂ−Ｂ断面、を示す。
第２例
浮遊物（６）の排出促進用に水ノズル（５）を設置した場合の実施例の平面図を図４に示す。
【０００６】
【発明の効果】
上向流傾斜板装置に排水トラフ（１）、排水弁（８）、水ノズル（５）、給水弁（９）を設置することにより、傾斜板（２）の表面に付着した固形物の除去、及び、傾斜板（２）の間に浮遊した浮遊物（６）の除去が排水弁（８）の開閉だけで可能になり、沈殿池（７）を空にして、掃除する必要が無くなる。
【図面の簡単な説明】
【図１】本発明の実施形態…上向流傾斜板装置の平面図及びＣ−Ｃ断面図
【図２】従来の技術
【図３】本発明の実施形態…上向流傾斜板装置の図１における、Ａ−Ａ断面図、Ｂ−Ｂ断面図
【図４】水ノズルを設置した場合の実施形態…平面図及びＣ−Ｃ断面図
【符号の説明】
（１）は排水トラフ （２）は傾斜板 （３）は上澄水トラフ
（４）は集水ノズル （５）は水ノズル （６）は浮遊物
（７）は沈殿池 （８）は排水弁 （９）は給水弁[0001]
[Technology to which the invention belongs]
The present invention is an upward flow type inclined plate device in a wastewater treatment apparatus. Details of the invention are shown in FIG.
The upflow type inclined plate device consists of a settling basin (7), a drainage trough (1) , an inclined plate (2), a supernatant water trough (3), a water collection nozzle (4), a water nozzle (5), a drainage valve ( 8) and a water supply valve (9).
As shown in FIG. 1, the inclined plate (2) is installed in a settling basin (7). The upper part of the inclined plate (2) is installed above the water surface L-1. There is a supernatant trough (3) to collect the treated water of the inclined plate (2). The water surface L-3 in the supernatant water trough (3) is below the water surface L-1. The supernatant trough (3) has a water collection nozzle (4).
The attachment positions of the water collecting nozzle (4) to the supernatant trough (3) are the side, the bottom, and both sides. Also, there are upper and lower cases for the mounting level of L-3.
Raw water flows in from the lower part of the inclined plate (2) and flows out upward between the inclined plates (2) . Solid matter in the raw water settles on the surface of the inclined plate (2). The solid matter precipitated on the surface of the inclined plate (2) slides down the surface of the inclined plate (2) and settles to the bottom of the settling basin. Treated water passing between the inclined plates (2) flows out to the upper supernatant water trough (3) to be installed a water collecting nozzle (4) from the upper supernatant water trough (3) in and out to the sedimentation tank (7) outside .
The drainage trough (1) is installed adjacent to the side surface in the perpendicular direction of the inclined plate (2), and has a structure in which the treated water between the inclined plates (2) is allowed to overflow. FIG. 1 shows an example in which a drainage trough (1) is installed on the side surface. A drainage valve (8) is installed in the middle of the pipe for draining the drainage of the drainage trough (1) to the outside of the settling basin (7).
When the drain valve (8) is opened, the level L-2 of the water level in the drain trough (1) falls below the level L-1 , and much of the raw water that has passed through the inclined plate becomes washing water for the inclined plate, and much of the treated water. is switched from the upper supernatant water trough (3) into the drainage trough (1). The washing water (drainage water amount) to the drainage trough (1) is larger than the passing amount of the water collection nozzle (4). Therefore, the flow rate between the inclined plates (2) suddenly increases and the solid matter attached to the inclined plates (2) peels off. Solids adhering to the inclined plate (2) by This is removed detached with wash water to the drainage trough (1).
The suspended matter (6) floating on the water surface between the inclined plates (2) opens the drainage valve (8) installed on the drainage trough (1), thereby draining the trough (1) perpendicular to the inclined plate. Since the flow in the direction is generated, it can be discharged and removed together with the treated water to the drainage trough (1). At this time, the upper surface of the drain trough (1) overflow part is below the upper part of the inclined plate (2),
The type of the drain valve (8) only needs to be able to open and close the outflow of treated water, and may be a gate or a siphon device.
Drainage trough (1) The amount of drainage is determined by the upper part of the overflow section and the depth from level L-1. Usually, this drainage trough (1) is called the overflow load. The amount of water required to remove the solid matter varies depending on the type of drainage. When the type of drainage is sewage, the necessary overflow load is 500 m 3 / m day or more.
A water nozzle (4) is installed on the water surface between the inclined plates (2) in the opposite direction away from the drainage trough as much as possible.
By opening the water supply valve (9) and injecting the pressure water from the water nozzle (4) in the direction of the drainage trough (1), the surface water between the inclined plates (2) flows into the drainage trough (1). , Promoting the effect of floating material (6) flowing out into the drainage trough (1). Water supply to the water nozzle (5) is performed by opening and closing the water supply valve (9). The opening and closing of the water supply valve is linked to the opening and closing of the drain valve (8).
The supernatant trough (3) and the drainage trough (1) are not necessarily integrated with the settling basin (7). Further, when the water surface L-1 is above the inclined plate (2), the upper position of the drainage trough (1) is higher than the upper portion of the inclined plate (2). The upper position of the drainage trough (1) may be variable.
When the pond width of the sedimentation basin (7) is wide, a plurality of supernatant troughs (3) and drain troughs (1) on the inclined plate (2) are installed alternately.
[0002]
[Prior art]
A conventional technique is shown in FIG. Since there is no drainage trough (1) in the prior art, suspended solids (6) floating between the inclined plates (2) and solid matter attached to the inclined plates (2) empty the sedimentation basin (7), It was necessary to wash the inclined plate (2) with pressure water or the like to remove the solids, and it was difficult to maintain and took a long time.
[0003]
[Problems to be solved by the invention]
In the prior art, when removing the solid matter adhering to the surface of the inclined plate (2) and removing the suspended matter (6) floating between the inclined plates (2), the sedimentation basin is emptied and washed. Was.
In the present invention, the drainage trough (1) and the drainage valve (8) are installed separately from the supernatant water trough (3), and the drainage valve (8) is opened as the outflow destination of the treated water. 3) to switch from the drainage trough (1).
When the drain valve (8) is opened, the treated water flows out into the drain trough (1). At this time, the amount of treated water increases. As a result, the flow rate of the treated water passing between the inclined plates (2) can be increased rapidly. By rapidly increasing the flow velocity between the inclined plates (2), the solid matter attached to the inclined plates (2) is peeled off from the inclined plates (2), and the attached sludge on the inclined plates (2) can be removed. The surface water between the inclined plates (2) is drawn by the drainage trough (1). This allows the suspended matter (6) to be discharged and removed to the drainage trough (1). Moreover, by installing the water nozzle (5), the suspended matter (6) can be crushed, and the outflow effect of the suspended matter (6) can be promoted.
In this way, the inclined plate (2) can be cleaned without emptying the sedimentation basin [0004]
[Means for Solving the Problems]
The present invention resides in that a drain trough (1) and a water nozzle (5) are installed in an upward flow inclined plate device.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described. Example I FIG. 1 shows a plan view and a CC cross-section when the embodiment is implemented. 3 shows an AA cross section and a BB cross section of FIG.
Second Example FIG. 4 shows a plan view of an example in which a water nozzle (5) is installed for promoting the discharge of suspended matter (6).
[0006]
【The invention's effect】
By installing the drainage trough (1), drainage valve (8), water nozzle (5), and water supply valve (9) in the upward flow inclined plate device, removal of solid matter attached to the surface of the inclined plate (2) In addition, the floating substance (6) floating between the inclined plates (2) can be removed only by opening and closing the drain valve (8), and it is not necessary to empty the sedimentation basin (7) for cleaning.
[Brief description of the drawings]
FIG. 1 is a plan view and a cross-sectional view of a C-C cross section of an upward flow inclined plate device according to the present invention. FIG. 3 is a prior art. FIG. AA sectional view, BB sectional view in Fig. 1 [Fig. 4] Embodiment when water nozzle is installed ... Plan view and CC sectional view [Explanation of symbols]
(1) Drain trough (2) Inclined plate (3) Supernatant trough (4) Water collection nozzle (5) Water nozzle (6) Floating matter (7) Settling basin (8) Drain valve (9) is the water supply valve
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000375265A JP4747331B2 (en) | 2000-11-02 | 2000-11-02 | Upflow type tilting device in wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000375265A JP4747331B2 (en) | 2000-11-02 | 2000-11-02 | Upflow type tilting device in wastewater treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002136808A JP2002136808A (en) | 2002-05-14 |
| JP4747331B2 true JP4747331B2 (en) | 2011-08-17 |
Family
ID=18844299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000375265A Expired - Fee Related JP4747331B2 (en) | 2000-11-02 | 2000-11-02 | Upflow type tilting device in wastewater treatment equipment |
Country Status (1)
| Country | Link |
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| JP (1) | JP4747331B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108031151B (en) * | 2018-01-23 | 2019-11-05 | 叶长兵 | A kind of incorgruous flow inclined plate sedimentation system of segmentation mud-water separation layering |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49150848U (en) * | 1973-04-25 | 1974-12-27 | ||
| JPS50147161A (en) * | 1974-05-18 | 1975-11-26 | ||
| JPS51119167A (en) * | 1975-04-11 | 1976-10-19 | Nittetsu Kakoki Kk | Inclined film-system precipitation tank |
| JPS5290158A (en) * | 1976-01-22 | 1977-07-28 | Matsushita Electric Works Ltd | Scum blowing-collecting device |
| JPS567289Y2 (en) * | 1976-08-13 | 1981-02-18 | ||
| JPS5612971Y2 (en) * | 1979-09-04 | 1981-03-26 | ||
| JPS599686Y2 (en) * | 1980-03-17 | 1984-03-27 | ワセダ技研株式会社 | Upflow type inclined plate sedimentation device |
| JPS6013205U (en) * | 1983-07-07 | 1985-01-29 | 株式会社安川電機 | Sedimentation pond water collection gutter |
| JPS60238107A (en) * | 1984-05-14 | 1985-11-27 | Miura Eng Internatl Kk | Separation and removal of accumulated substance between inclined curtains of inclined curtain type thickener |
| JPS60251908A (en) * | 1984-05-25 | 1985-12-12 | Miura Eng Internatl Kk | Flocculate precipitating method generating no clogging on inclined curtain |
| JPH0213045Y2 (en) * | 1985-01-10 | 1990-04-11 | ||
| JPS6341053Y2 (en) * | 1985-04-15 | 1988-10-27 | ||
| JP2577754Y2 (en) * | 1991-12-17 | 1998-07-30 | 月島機械株式会社 | Sludge treatment equipment in sedimentation tanks |
| JP2521634Y2 (en) * | 1992-04-09 | 1996-12-25 | 株式会社西原環境衛生研究所 | Scum removal device for batch type activated sludge treatment tank |
| JPH078001Y2 (en) * | 1992-04-28 | 1995-03-01 | 株式会社西原環境衛生研究所 | Settling equipment for sludge treatment |
| JP3371270B2 (en) * | 1994-05-13 | 2003-01-27 | 財団法人埼玉県下水道公社 | Scum transfer collection device |
| JP3490177B2 (en) * | 1995-03-02 | 2004-01-26 | 旭テック株式会社 | Sedimentation basin |
| JP4766460B2 (en) * | 2000-01-05 | 2011-09-07 | 義司 酒本 | Solid-liquid separator in wastewater treatment equipment |
| JP2002085907A (en) * | 2000-09-14 | 2002-03-26 | Japan Organo Co Ltd | Flocculating and settling apparatus |
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2000
- 2000-11-02 JP JP2000375265A patent/JP4747331B2/en not_active Expired - Fee Related
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| JP2002136808A (en) | 2002-05-14 |
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