JPH05317841A - Sewage treating facility - Google Patents
Sewage treating facilityInfo
- Publication number
- JPH05317841A JPH05317841A JP8900092A JP8900092A JPH05317841A JP H05317841 A JPH05317841 A JP H05317841A JP 8900092 A JP8900092 A JP 8900092A JP 8900092 A JP8900092 A JP 8900092A JP H05317841 A JPH05317841 A JP H05317841A
- Authority
- JP
- Japan
- Prior art keywords
- sewage
- sludge
- treatment
- station
- rainwater
- 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
Landscapes
- Treatment Of Sludge (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は下水処理施設に係り、特
に汚水と雨水との合流式下水道において雨天時下水処理
設備を備えた下水処理施設に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage treatment facility, and more particularly to a sewage treatment facility equipped with a rainwater sewage treatment facility in a combined sewer system of sewage and rainwater.
【０００２】[0002]
【従来の技術】汚水１と雨水２とが合流する合流式下水
道３を浄化処理する従来のこの種の下水処理施設のう
ち、雨天時下水処理設備を備えていない下水処理施設を
図２に示す。このような下水処理施設では、晴天時のよ
うに雨水２が下水道３に流れ込まなく下水量が多くなら
ない場合は、汚水１のみがポンプ場の第１の汚水沈砂池
４に送水される。そして、ポンプ場の第１の汚水ポンプ
５により処理場の第２の汚水沈砂池６に送られ第２の汚
水ポンプ７により最初沈澱池８、曝気槽９、最終沈澱池
１０を経て浄化処理されてから処理水１１として公共用
水域に放流される。また、最初沈澱池８で発生する汚泥
は初沈汚泥１２として引抜かれ汚泥総合処理設備１３に
送泥されて処分される。2. Description of the Related Art FIG. 2 shows a conventional sewage treatment facility for purifying a combined sewer system 3 in which sewage 1 and rainwater 2 join together, which is not equipped with a rainwater sewage treatment facility. .. In such a sewage treatment facility, when the rainwater 2 does not flow into the sewer 3 and the amount of sewage does not increase as in the case of fine weather, only the sewage 1 is sent to the first sewage sand basin 4 of the pump station. Then, the first sewage pump 5 at the pumping station sends it to the second sewage settling basin 6 at the treatment plant, and the second sewage pump 7 cleans it through the first settling basin 8, the aeration tank 9, and the final settling basin 10. After that, it is discharged to the public water area as treated water 11. Further, the sludge generated in the first settling basin 8 is extracted as the first settling sludge 12 and sent to the sludge integrated treatment facility 13 for disposal.
【０００３】しかし、雨天時、特に豪雨時には、汚水１
と共に大量の雨水２が下水道３に流れ込み、汚水１とし
てポンプ場から処理場に送水できる以上の水量になる。
このような雨天時下水の場合、ポンプ場に流入する下水
は、ポンプ場において第１の汚水沈砂池４と第１の雨水
沈砂池１４とに分流され、第１の汚水沈砂池４に分流さ
れる下水は第１の汚水ポンプ５により処理場に送られ
る。一方、第１の雨水沈砂池１４に分流される下水は第
１の雨水ポンプ１５により越流水１６として公共用水域
に放流される。However, when it rains, especially when it is a heavy rain, the sewage 1
At the same time, a large amount of rainwater 2 flows into the sewer 3, and the amount of sewage 1 becomes larger than that which can be sent from the pump station to the treatment plant.
In the case of such rainy sewage, the sewage flowing into the pumping station is diverted to the first sewage sedimentation basin 4 and the first rainwater sedimentation basin 14 and then to the first sewage sedimentation basin 4 at the pumping station. The sewage is sent to the treatment plant by the first sewage pump 5. On the other hand, the sewage diverted to the first rainwater sedimentation basin 14 is discharged by the first rainwater pump 15 into the public water area as overflow water 16.
【０００４】更に、各ポンプ場から処理場に送水される
水量が処理場で浄化処理できる能力以上の水量になる場
合は、処理場に設けられた第２の汚水沈砂池６と第２の
雨水沈砂池１７とに分流される。そして、第２の汚水沈
砂池６に分流された下水は、第２の汚水ポンプ７により
最初沈澱池８に送水され前記同様に浄化処理及び汚泥処
理される。一方、第２の雨水沈砂池１７に分流された下
水は、第２の雨水ポンプ１８により簡易処理池１９に送
水され簡易的に浄化処理されてから放流水１９として公
共用水域に放流される。また、前記簡易処理池１９で発
生した汚泥は汚泥総合処理設備１３に送泥され処分され
る。Further, when the amount of water sent from each pump station to the treatment plant exceeds the capacity for purification treatment at the treatment plant, the second wastewater sand basin 6 and the second rainwater provided at the treatment plant are provided. It is divided into the sand basin 17. Then, the sewage diverted to the second sewage sedimentation basin 6 is first sent to the sedimentation basin 8 by the second sewage pump 7 and is purified and sludge treated as described above. On the other hand, the sewage diverted to the second rainwater sedimentation basin 17 is sent to the simple treatment basin 19 by the second rainwater pump 18, is simply purified, and is then discharged to the public water area as discharge water 19. The sludge generated in the simple treatment pond 19 is sent to the sludge integrated treatment facility 13 for disposal.
【０００５】このように、雨天時下水に対処する設備を
有しない下水処理施設では一部の下水は浄化処理されず
に放流されてしまう。このことから、ポンプ所や処理場
に雨天時下水処理設備を設け、雨天時にも対処できるよ
うにした下水処理施設もあり、従来のこの種の下水処理
施設は、図３に示すように雨天時下水処理設備２１、２
８に汚泥処理設備２４、３１を併設した構成になってい
る。即ち、ポンプ場に流入した雨天時下水はポンプ場の
第１の汚水沈砂池４と第１の雨水沈砂池１４とに分流さ
れる。そして、第１の汚水沈砂池４に分流された下水
は、第１の汚水ポンプ５により処理場に送水される。一
方、第１の雨水沈砂池１４に分流された下水は、第１の
雨水ポンプ１５により第１の雨天時下水処理設備２１に
送水され浄化処理してから処理水２２として放流され
る。また、第１の雨天時下水処理設備２１で発生した汚
泥２３は第１の汚泥処理設備２４に送泥されて脱水さ
れ、脱水汚泥としてトラック等で汚泥総合処理設備１３
に搬送されて処分されると共に脱水濾液２６は下水道３
に戻される。As described above, in a sewage treatment facility that does not have a facility for dealing with sewage in rainy weather, some sewage is discharged without being purified. For this reason, there are sewage treatment facilities that are equipped with rainwater sewage treatment facilities at pump stations and treatment plants so that they can be dealt with even in the case of rain. Conventional sewage treatment facilities of this type are shown in Fig. 3. Sewage treatment equipment 21, 2
The sludge treatment equipment 24 and 31 are installed side by side with 8. That is, the sewage in rainy weather that has flowed into the pumping station is divided into the first wastewater sedimentation basin 4 and the first rainwater sedimentation basin 14 of the pumping station. Then, the sewage diverted to the first wastewater sedimentation basin 4 is sent to the treatment plant by the first wastewater pump 5. On the other hand, the sewage diverted to the first rainwater sedimentation basin 14 is sent to the first rainwater sewage treatment facility 21 by the first rainwater pump 15, is purified, and is then discharged as treated water 22. The sludge 23 generated in the first rainy day sewage treatment equipment 21 is sent to the first sludge treatment equipment 24 to be dehydrated, and the sludge comprehensive treatment equipment 13 is used as dehydrated sludge in a truck or the like.
Dewatered filtrate 26 is transported to and disposed of in the sewer 3
Returned to.
【０００６】更に、各ポンプ場から処理場に送水される
下水の水量が処理場で浄化処理できる能力以上の水量の
場合は、処理場に設けられた第２の汚水沈砂池６と第２
の雨水沈砂池１７とに分流される。そして、第２の汚水
沈砂池６に分流された下水は前記同様に浄化処理及び汚
泥処理される。一方、第２の雨水沈砂池１７に分流され
た下水は第２の雨天時下水処理設備２８に送水され浄化
処理してから処理水２９として放流される。また、第２
の雨天時下水処理設備２８で発生した汚泥３０は第２の
汚泥処理設備３１に送泥されて脱水され、脱水汚泥３２
として汚泥総合処理設備１３に搬送され処分されると共
に脱水濾液３３は管渠３４に戻される。Further, when the amount of sewage sent from each pumping station to the treatment plant is more than the capacity for purification treatment at the treatment plant, the second wastewater sand basin 6 and the second sewage sedimentation basin 6 provided at the treatment plant
It is diverted to the rainwater sand basin 17. Then, the sewage shunted to the second wastewater sedimentation basin 6 is subjected to purification treatment and sludge treatment in the same manner as described above. On the other hand, the sewage diverted to the second rainwater sedimentation basin 17 is sent to the second rainwater sewage treatment facility 28 for purification treatment and then discharged as treated water 29. Also, the second
The sludge 30 generated in the rainwater sewage treatment equipment 28 is sent to the second sludge treatment equipment 31 to be dehydrated, and the dehydrated sludge 32
As a result, it is transported to the sludge integrated treatment facility 13 and disposed of, and the dehydrated filtrate 33 is returned to the pipe 34.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、従来の
雨天時にも対処できる設備を備えた下水処理施設は、雨
天時下水処理設備２１、２８に汚泥処理設備２４、３１
を併設している為、以下に示すような欠点がある。 （１）雨天時下水処理設備２１、２８に併設する汚泥処
理設備２４、３１の設置面積は雨天時下水処理設備２
１、２８の設置面積の約２倍の面積を必要とする。ま
た、合流式下水道の多くは、都市部に採用されており、
雨天時下水処理設備２１、２８に汚泥処理設備２４、３
１を併設することは、土地の確保の点で問題があり、特
に大きな設置面積を要する汚泥処理設備２４、３１を併
設しなくてよい下水処理施設が要望されている。 （２）汚泥処理設備２４、３１の脱水汚泥２５をトラッ
ク等で搬送する為、長期間降雨が続いた場合、汚泥処理
設備２４、３１での汚泥貯蔵能力が不足する問題があ
る。この為、前記汚泥処理設備２４、３１から汚泥総合
処理設備１３まで汚泥配管を設けることも考えられる
が、長距離配管になると共に雨天時しか汚泥配管を使用
しないことから配管中での汚泥の詰まり等のトラブルが
発生し易く現実的でない。However, in the conventional sewage treatment facility equipped with facilities that can cope with rainy weather, the sewage treatment facilities 21 and 28 in the case of rainy weather are sludge treatment facilities 24 and 31.
Since it is installed side by side, it has the following drawbacks. (1) The installation area of the sludge treatment facilities 24 and 31 that are attached to the sewage treatment facilities 21 and 28 in the rain is 2
It requires an area about twice as large as the installation area of 1, 28. Most of the combined sewers are used in urban areas,
Sludge treatment equipment 24, 3 in sewage treatment equipment 21, 28 in rainy weather
There is a problem in securing the land if 1 is installed side by side, and there is a demand for a sewage treatment facility that does not need to install the sludge treatment facilities 24 and 31 that require a particularly large installation area. (2) Since the dehydrated sludge 25 of the sludge treatment facilities 24 and 31 is transported by a truck or the like, there is a problem that the sludge storage facilities 24 and 31 lack the sludge storage capacity when the rainfall continues for a long time. Therefore, it is conceivable to provide sludge pipes from the sludge treatment facilities 24 and 31 to the sludge integrated treatment facility 13, but the sludge pipes are clogged in the pipes because they become long-distance pipes and the sludge pipes are used only in rainy weather. It is not realistic because problems such as
【０００８】本発明はこのような事情に鑑みてなされた
もので、ポンプ所や処理場に設置する雨天時下水処理設
備に汚泥処理設備を併設する必要がなく、且つ雨天時下
水処理設備で発生する汚泥を容易に処理できる下水処理
施設を提供することを目的とする。The present invention has been made in view of the above circumstances, and it is not necessary to install a sludge treatment facility in the rainwater sewage treatment facility installed at a pump station or a treatment plant, and the sewage treatment facility in the rainy weather occurs. It is an object of the present invention to provide a sewage treatment facility that can easily treat sewage sludge.
【０００９】[0009]
【課題を解決する為の手段】本発明は、前記目的を達成
する為に、汚水と雨水との合流式下水が流入するポンプ
場と、前記ポンプ場から送水される下水を浄化処理する
処理場と、から成り、前記ポンプ場に流入する下水量が
通常水量時には全ての下水をポンプ場から処理場に送水
して浄化処理すると共に前記処理場の最初沈澱池で汚泥
を初沈汚泥として引抜いて汚泥処理し、異常増水量時に
は前記ポンプ場にて前記処理場に送水する下水とポンプ
場の雨天時下水処理設備に送水する下水とに分流して夫
々浄化処理する下水処理施設に於いて、前記ポンプ場の
雨天時下水処理設備で発生する汚泥を前記ポンプ場から
前記処理場に送水する下水に搬入する搬入手段を設けた
ことを特徴とする。In order to achieve the above-mentioned object, the present invention provides a pumping station into which sewage that merges sewage and rainwater flows, and a treatment plant that purifies sewage sent from the pumping station. When the amount of sewage flowing into the pumping station is a normal amount, all the sewage is sent from the pumping station to the treatment plant for purification treatment and the sludge is extracted as the first settling sludge in the first settling basin of the treatment plant. In the sewage treatment facility that performs sludge treatment and separates the sewage to be delivered to the treatment plant at the pump station and the sewage to be delivered to the rainwater sewage treatment facility at the pump station at the time of abnormally increased water volume, respectively, for purification treatment, It is characterized in that a carrying-in means is provided for carrying in sludge generated in the rainwater sewage treatment facility of the pumping station into the sewage sent from the pumping station to the treatment station.
【００１０】[0010]
【作用】本発明によれば、ポンプ場の雨天時下水処理設
備で発生する汚泥を、ポンプ場から処理場に送水する下
水に搬入する搬入手段を設けて搬入する。また、前記処
理場に送水する下水に搬入された汚泥は最初沈澱池で初
沈汚泥として引抜かれ処分されるので、本発明の下水処
理施設の浄化処理に悪影響を及ぼすことはない。これに
より、従来の下水処理施設のようにポンプ場の雨天時下
水処理設備に汚泥処理設備を併設する必要がない。According to the present invention, the sludge generated in the rainwater sewage treatment facility at the pumping station is carried in by providing the carrying-in means for carrying in the sewage sent from the pumping station to the treatment site. In addition, since the sludge carried into the sewage sent to the treatment plant is first extracted and disposed of in the settling basin as the first settling sludge, it does not adversely affect the purification treatment of the sewage treatment facility of the present invention. As a result, unlike the conventional sewage treatment facility, there is no need to install a sludge treatment facility in the rainwater sewage treatment facility at the pump station.
【００１１】また、処理場のポンプ所の雨天時下水処理
設備で発生する汚泥を、ポンプ所から最初沈澱池に送水
する下水に搬入する搬入手段を設けて搬入する。また、
前記最初沈澱池に送水する下水に搬入された汚泥は最初
沈澱池の初沈汚泥として引抜かれ処分されるので、本発
明の下水処理施設の浄化処理に悪影響を及ぼすことはな
い。これにより、従来の下水処理施設のように前記処理
場の雨天時下水処理設備に汚泥処理設備を併設する必要
がない。[0011] Further, the sludge generated in the rainwater sewage treatment facility of the pump station of the treatment plant is carried in by introducing means for carrying in the sewage that is first sent from the pump station to the settling basin. Also,
The sludge carried into the sewage sent to the first settling basin is withdrawn and disposed of as the first settling sludge in the first settling basin, and therefore does not adversely affect the purification treatment of the sewage treatment facility of the present invention. As a result, unlike the conventional sewage treatment facility, it is not necessary to additionally install a sludge treatment facility in the rainwater sewage treatment facility of the treatment plant.
【００１２】[0012]
【実施例】以下添付図面に従って本発明に係る下水処理
施設の好ましい実施例について詳説する。図１に示すよ
うに、本発明の下水処理施設は、３か所のポンプ場と、
前記各ポンプ場からの下水を浄化処理する処理場と、か
ら構成されている。前記各ポンプ場には第１の汚水沈砂
池４０と第１の汚水ポンプ４２及び第１の雨水沈砂池４
４と第１の雨水ポンプ４６が並列に配設され、汚水４８
と雨水５０とが合流する合流式下水道５２からの下水は
前記第１の汚水沈砂池４０と第１の雨水沈砂池４４とに
適宜分流されるようになっている。また、前記第１の汚
水ポンプ４２は第１の汚水沈砂池４０に流入した下水を
管渠５２を介して処理場に送水する。また、前記第１の
雨水ポンプ４６は第１の雨天時下水処理設備５４に配管
５６で接続され、前記第１の雨水沈砂池４４に流入した
下水を前記第１の雨天時下水処理設備５４に送水する。
また、前記第１の雨天時下水処理設備５４から前記第１
の汚水ポンプ４２の入口まで第１の汚泥配管５８が接続
され、前記第１の雨天時下水処理設備５４で発生する汚
泥を前記第１の汚泥配管５８を介して各ポンプ場から処
理場に送水する下水に搬入するようになっている。The preferred embodiments of the sewage treatment facility according to the present invention will be described in detail below with reference to the accompanying drawings. As shown in FIG. 1, the sewage treatment facility of the present invention comprises three pump stations,
It comprises a treatment plant for purifying sewage from each of the pump stations. At each pump station, a first wastewater sand basin 40, a first wastewater pump 42, and a first rainwater sand basin 4 are provided.
4 and the first rainwater pump 46 are arranged in parallel, and the wastewater 48
The sewage from the confluent sewer 52, where the rainwater 50 and the rainwater 50 merge, is appropriately divided into the first wastewater sand basin 40 and the first rainwater sand basin 44. The first sewage pump 42 sends the sewage flowing into the first sewage sedimentation basin 40 to the treatment plant through the pipe 52. Further, the first rainwater pump 46 is connected to the first rainwater sewage treatment equipment 54 by a pipe 56, and the sewage flowing into the first rainwater sedimentation basin 44 is supplied to the first rainwater sewage treatment equipment 54. Send water.
In addition, from the first rainwater sewage treatment facility 54 to the first
The first sludge pipe 58 is connected to the inlet of the sewage pump 42, and the sludge generated in the first rainy day sewage treatment facility 54 is sent from each pump station to the treatment plant through the first sludge pipe 58. It is designed to be carried into sewage.
【００１３】一方、処理場は、第２の汚水沈砂池６０と
第２の汚水ポンプ６２及び第２の雨水沈砂池６４と第２
の雨水ポンプ６６が並列に配設され、各ポンプ場から送
水される下水は第２の汚水沈砂池６０と第２の雨水沈砂
池６４とに適宜分流されるようになっている。また、前
記第２の汚水ポンプ６２は第２の汚水沈砂池６０に配管
７０で接続され、前記第２の雨水ポンプ６６は第２の雨
天時下水処理設備７２に配管７４で接続されている。ま
た、前記第２の雨天時下水処理設備７２から前記最初沈
澱池６８の入口まで第２の汚泥配管７６が接続され、前
記第２の雨天時下水処理設備７２で発生する汚泥は前記
第２の汚泥配管７６を介して第２の汚水沈砂池６０から
最初沈澱池６８に送水する下水に搬入するようになって
いる。また、第２の汚水沈砂池６０から最初沈澱池６８
に送水された下水は曝気槽７８、最終沈澱池８０を経て
浄化処理されてから処理水８２として放流される。ま
た、前記最初沈澱池６８で発生する汚泥は配管８４を介
して初沈汚泥として汚泥総合処理場８６に送泥されて処
分される。On the other hand, the treatment plant has a second sewage sedimentation basin 60, a second sewage pump 62, a second rainwater sedimentation basin 64, and a second sewage sedimentation basin 64.
The rainwater pumps 66 are arranged in parallel, and the sewage sent from each pumping station is appropriately divided into the second wastewater sedimentation basin 60 and the second rainwater sedimentation basin 64. The second sewage pump 62 is connected to the second sewage sedimentation basin 60 by a pipe 70, and the second rainwater pump 66 is connected to a second rainwater sewage treatment facility 72 by a pipe 74. A second sludge pipe 76 is connected from the second rainwater sewage treatment equipment 72 to the inlet of the first settling basin 68, and the sludge generated in the second rainy sewage treatment equipment 72 is the second sludge. The sludge pipe 76 is used to carry the sewage from the second sewage settling basin 60 into the sewage which is first sent to the settling basin 68. In addition, the second settling basin 60 to the first settling basin 68
The sewage sent to (1) is purified through the aeration tank 78 and the final settling tank 80, and then discharged as treated water 82. The sludge generated in the first settling basin 68 is sent to the sludge integrated treatment plant 86 as initial settled sludge through the pipe 84 and disposed of.
【００１４】次に、このように構成された本発明の下水
処理施設の作用を説明する。晴天時、即ち合流式下水道
に汚水４８のみが流れ込む場合、下水道５２からポンプ
場に流入する下水は全て第１の汚水沈砂池４０に流入
し、第１の汚水ポンプ４２により処理場の第２の汚水沈
砂池６０に送水される。そして、第２の汚水沈砂池６０
に送水された下水は最初沈澱池６８、曝気槽７８、最終
沈澱池８０を経て浄化処理されてから処理水８２放流さ
れる。また、最初沈澱池６８で発生する汚泥は初沈汚泥
として配管８４を介して汚泥総合処理設備８６に送泥さ
れ処分される。Next, the operation of the sewage treatment facility of the present invention thus constructed will be described. In fine weather, that is, when only the sewage 48 flows into the combined sewer, all the sewage flowing into the pump station from the sewer 52 flows into the first sewage sedimentation basin 40, and the first sewage pump 42 causes the second sewage of the treatment plant to flow. Water is sent to the sewage sedimentation basin 60. And the second sewage settling basin 60
The sewage sent to the water is first purified through the settling basin 68, the aeration tank 78, and the final settling basin 80, and then discharged to the treated water 82. Further, the sludge generated in the first settling basin 68 is sent to the sludge integrated treatment facility 86 via the pipe 84 as initial sludge and disposed of.
【００１５】雨天時、特に豪雨により汚水４８と共に大
量の雨水５０が下水道５２に流れ込む場合、各ポンプ場
に流入する下水は第１の汚水沈砂池４０と第１の雨水沈
砂池４４とに分流される。第１の汚水沈砂池４０に流入
した下水は第１の汚水ポンプ４２により処理場に送水さ
れる。前記第１の雨水沈砂池４４に流入した下水は第１
の雨水ポンプ４６により第１の雨天時下水処理設備５４
に送水され浄化処理されてから処理水５５として放流さ
れる。また、第１の雨天時下水処理設備５４で発生した
汚泥は第１の汚泥配管５８を介して第１の汚水ポンプ４
２の入口に搬入される。第１の雨天時下水処理設備５４
で発生した汚泥を搬入された下水は、第１の汚水ポンプ
４２により管渠５２を介して処理場に送水され、第２の
汚水沈砂池６０と第２の雨水沈砂池６４とに分流され
る。そして、第２の汚水沈砂池６０に分流された下水は
第２の汚水ポンプ６２により配管７０を介して最初沈澱
池６８に送水され前記同様に浄化処理及び汚泥処理され
る。一方、第２の雨水沈砂池６４に分流された下水は第
２の雨水ポンプにより配管７４を介して第２の雨天時下
水処理設備７２に送水され浄化処理されてから処理水７
５として放流される。また、前記第２の雨天時下水処理
設備で発生した汚泥は第２の汚泥配管７６を介して最初
沈澱池６８に搬入される。最初沈澱池６８に搬入された
汚泥は初沈汚泥として引抜かれ、配管８４を介して汚泥
総合処理設備８６に送泥されて処分される。In case of rain, especially when a large amount of rainwater 50 flows into the sewer 52 together with the wastewater 48 due to heavy rain, the sewage flowing into each pumping station is diverted into the first wastewater sedimentation basin 40 and the first rainwater sedimentation basin 44. It The sewage that has flowed into the first wastewater sand basin 40 is sent to the treatment plant by the first wastewater pump 42. The sewage flowing into the first rainwater sedimentation basin 44 is
The first rainwater sewage treatment facility 54 by the rainwater pump 46 of
To the treated water 55 and then purified and discharged as treated water 55. In addition, the sludge generated in the first rainwater sewage treatment facility 54 is passed through the first sludge pipe 58 to the first wastewater pump 4
It is carried in to the entrance of 2. First rainwater treatment facility 54
The sewage having the sludge generated in 1. is sent to the treatment plant by the first sewage pump 42 through the pipe 52, and is divided into the second sewage sedimentation basin 60 and the second rainwater sedimentation basin 64. .. Then, the sewage diverted to the second sewage sedimentation basin 60 is first sent to the sedimentation basin 68 by the second sewage pump 62 via the pipe 70 and is purified and sludge treated in the same manner as described above. On the other hand, the sewage diverted to the second rainwater sedimentation basin 64 is sent to the second rainwater sewage treatment facility 72 through the pipe 74 by the second rainwater pump, and is treated before being treated.
Released as 5. Further, the sludge generated in the second rainy day sewage treatment facility is first carried into the settling basin 68 through the second sludge pipe 76. The sludge first carried into the settling basin 68 is extracted as initial sludge and sent to the sludge integrated treatment facility 86 via the pipe 84 for disposal.
【００１６】上記した通り本発明の下水処理施設によれ
ば、ポンプ場の第１の雨天時下水処理設備５４で発生す
る汚泥を第１の汚泥配管５８を介して第１の汚水ポンプ
４２の入口に搬入する。また、前記第１の汚水ポンプ４
２の入口に搬入された汚泥は最初沈澱池６８で初沈汚泥
として引抜かれるので、本発明の下水処理施設の浄化処
理に悪影響を及ぼすことはない。これにより、従来の下
水処理施設のようにポンプ場の雨天時下水処理設備５４
に汚泥処理設備を併設する必要がない。As described above, according to the sewage treatment facility of the present invention, the sludge generated in the first rainwater sewage treatment facility 54 at the pumping station is fed through the first sludge pipe 58 to the inlet of the first sewage pump 42. Carry in. In addition, the first sewage pump 4
The sludge carried into the inlet of No. 2 is first withdrawn as the first sludge in the settling basin 68, so that it does not adversely affect the purification treatment of the sewage treatment facility of the present invention. As a result, the rainwater sewage treatment facility 54 at the pumping station can be used like a conventional sewage treatment facility.
There is no need to install a sludge treatment facility at the same time.
【００１７】また、処理場のポンプ所の第２の雨天時下
水処理設備７２で発生する汚泥は最初沈澱池６８に搬入
する。また、前記最初沈澱池６８に搬入された汚泥は最
初沈澱池６８の初沈汚泥として引抜かれるので、本発明
の下水処理施設の浄化処理に悪影響を及ぼすことはな
い。これにより、従来の下水処理施設のように前記ポン
プ所の雨天時下水処理設備７２に汚泥処理設備を併設す
る必要がない。The sludge generated in the second rainwater sewage treatment facility 72 at the pump station of the treatment plant is first carried into the settling basin 68. Further, since the sludge carried into the first settling basin 68 is extracted as the first settling sludge in the first settling basin 68, it does not adversely affect the purification treatment of the sewage treatment facility of the present invention. As a result, unlike the conventional sewage treatment facility, it is not necessary to install a sludge treatment facility in the rainwater sewage treatment facility 72 of the pump station.
【００１８】尚、本実施例では第１の雨天時下水処理設
備で発生する汚泥を第１の汚水ポンプの入口に搬入した
が、これに限られるものではなく第１の汚水沈砂池ある
いは管渠に送泥してもよい。また、第２の雨天時下水処
理設備で発生した汚泥を最初沈澱池に搬入したが、これ
に限られるものではなく第２の汚水ポンプの入口に搬入
してもよい。また、処理場の浄化処理工程として最初沈
澱池、曝気槽、最終沈澱池としたが、これに限ったもの
ではなく、他の浄化設備を付け加えてもよく、また省略
してもよい。また、最初沈澱池は重力式の沈澱に限られ
るものではなく、遠心分離、磁気分離、濾過分離による
処理でもよい。In this embodiment, the sludge generated in the first rainy day sewage treatment facility was carried into the inlet of the first sewage pump. However, the present invention is not limited to this, and the first sewage sand basin or pipe May be sent to the mud. Further, although the sludge generated in the second rainy-day sewage treatment facility was first carried into the settling basin, it is not limited to this and may be carried into the inlet of the second sewage pump. Further, although the first settling tank, the aeration tank, and the final settling tank were used as the purification treatment steps of the treatment plant, the present invention is not limited to this, and other purification equipment may be added or omitted. Further, the first settling tank is not limited to gravity type settling, but may be a treatment by centrifugation, magnetic separation, or filtration separation.
【００１９】[0019]
【発明の効果】以上、説明したように本発明に係る下水
処理装置によれば、ポンプ場の雨天時下水処理設備で発
生する汚泥を、ポンプ場から処理場に送水する下水に搬
入する搬入手段を設けて搬入する。また、前記処理場に
送水する下水に搬入された汚泥は最初沈澱池で初沈汚泥
として引抜かれ処分されるので、本発明の下水処理施設
の浄化処理に悪影響を及ぼすことはない。これにより、
従来の下水処理施設のようにポンプ場の雨天時下水処理
設備に汚泥処理設備を併設する必要がない。As described above, according to the sewage treatment apparatus of the present invention, the carrying-in means for carrying the sludge generated in the rainwater sewage treatment facility at the pumping station into the sewage sent from the pumping station to the treatment station. Install and carry in. In addition, since the sludge carried into the sewage sent to the treatment plant is first extracted and disposed of in the settling basin as the first settling sludge, it does not adversely affect the purification treatment of the sewage treatment facility of the present invention. This allows
Unlike conventional sewage treatment facilities, there is no need to install sludge treatment facilities in the rainwater sewage treatment facilities at pump stations.
【００２０】また、処理場のポンプ所の雨天時下水処理
設備で発生する汚泥を、ポンプ所から最初沈澱池に送水
する下水に搬入する搬入手段を設けて搬入する。また、
前記最初沈澱池に送水する下水に搬入された汚泥は最初
沈澱池の初沈汚泥として引抜かれ処分されるので、本発
明の下水処理施設の浄化処理に悪影響を及ぼすことはな
い。これにより、従来の下水処理施設のように前記処理
場の雨天時下水処理設備に汚泥処理設備を併設する必要
がない。In addition, the sludge generated in the rainwater sewage treatment facility at the pump station of the treatment plant is carried in by introducing means for carrying in the sewage that is first sent from the pump station to the settling basin. Also,
The sludge carried into the sewage sent to the first settling basin is withdrawn and disposed of as the first settling sludge in the first settling basin, and therefore does not adversely affect the purification treatment of the sewage treatment facility of the present invention. As a result, unlike the conventional sewage treatment facility, it is not necessary to additionally install a sludge treatment facility in the rainwater sewage treatment facility of the treatment plant.
【００２１】従って、本発明の下水処理施設では雨天時
下水処理設備に汚泥処理設備を併設する必要がないの
で、雨天時下水処理設備を備えた下水処理施設を新規に
建設する場合、従来の雨天時下水処理設備を備えた下水
処理施設に比べ設置面積を大幅に削減することができ
る。また、雨天時下水処理設備と汚泥処理設備の両方を
建設する設置面積を有しない既存の下水処理装置にも対
応することができる。Therefore, in the sewage treatment facility of the present invention, it is not necessary to install a sludge treatment facility in addition to the sewage treatment facility in the case of rain. Therefore, when a new sewage treatment facility equipped with the sewage treatment facility in the case of rain is newly constructed, The installation area can be significantly reduced compared to a sewage treatment facility equipped with a temporary sewage treatment facility. Further, it is possible to correspond to an existing sewage treatment device which does not have an installation area for constructing both sewage treatment equipment in rainy weather and sludge treatment equipment.
【図１】本発明に係る下水処理施設の工程図FIG. 1 is a process diagram of a sewage treatment facility according to the present invention
【図２】従来の雨天時下水処理設備を有しない下水処理
施設の工程図[Figure 2] Process diagram of a sewage treatment facility that does not have a conventional sewage treatment facility in case of rain
【図３】従来の雨天時下水処理設備を備えた下水処理施
設の工程図[Fig. 3] Process diagram of a conventional sewage treatment facility equipped with a rainwater sewage treatment facility
４８…汚水 ５０…雨水 ６８…最初沈澱池 ７２…雨天時下水処理設備 ７６…搬入手段 48 ... Sewage 50 ... Rainwater 68 ... First settling basin 72 ... Sewage treatment facility in rainy weather 76 ... Transportation means
───────────────────────────────────────────────────── フロントページの続き (72)発明者 船 越 泰 司 東京都新宿区西新宿２−８−１ 東京都下 水道局内 (72)発明者 宮 島 潔 東京都新宿区西新宿２−８−１ 東京都下 水道局内 (72)発明者 山 本 博 文 東京都千代田区内神田１丁目１番14号 日 立プラント建設株式会社内 (72)発明者 小 島 正 行 東京都千代田区内神田１丁目１番14号 日 立プラント建設株式会社内 (72)発明者 川 尻 斉 東京都千代田区内神田１丁目１番14号 日 立プラント建設株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yasushi Funakoshi 2-8-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Inside the Sewerage Bureau, Tokyo (72) Inventor Kiyoshi Miyajima 2-8, Nishi-Shinjuku, Shinjuku-ku, Tokyo 1 Tokyo Metropolitan Sewerage Bureau (72) Inventor Hirofumi Yamamoto 1-1-14 Kanda, Chiyoda-ku, Tokyo Hito Plant Construction Co., Ltd. (72) Inventor Masayuki Kojima 1 Uchikanda, Chiyoda-ku, Tokyo (1) 1-14, Nitta Plant Construction Co., Ltd. (72) Inventor, Hitoshi Kawajiri, 1-1-14, Kanda, Chiyoda-ku, Tokyo
Claims (2)
プ場と、前記ポンプ場から送水される下水を浄化処理す
る処理場と、から成り、前記ポンプ場に流入する下水量
が通常水量時には全ての下水をポンプ場から処理場に送
水して浄化処理すると共に前記処理場の最初沈澱池で汚
泥を初沈汚泥として引抜いて汚泥処理し、異常増水量時
には前記ポンプ場にて前記処理場に送水する下水とポン
プ場の雨天時下水処理設備に送水する下水とに分流して
夫々浄化処理する下水処理施設に於いて、 前記ポンプ場の雨天時下水処理設備で発生する汚泥を前
記ポンプ場から前記処理場に送水する下水に搬入する搬
入手段を設けたことを特徴とする下水処理施設。1. A pumping station into which combined sewage of sewage and rainwater flows, and a treatment station for purifying the sewage sent from the pumping station. The amount of sewage flowing into the pumping station is the normal amount of water. Sometimes all the sewage is sent from the pumping station to the treatment plant for purification treatment, and at the same time, the sludge is extracted as the first settling sludge in the first settling basin of the treatment plant to treat the sludge. In the sewage treatment facility that separates and separates the sewage sent to the sewage and the sewage sent to the rainwater sewage treatment facility at the pumping station, the sludge generated at the rainwater sewage treatment facility at the pumping station is separated from the pumping station. A sewage treatment facility, which is provided with a carry-in means for carrying in sewage sent from the above to the treatment plant.
プ場と、前記ポンプ場から送水される下水を浄化処理す
る処理場と、から成り、前記ポンプ場から前記処理場の
ポンプ所に送水される下水量が通常水量時には全ての下
水を処理場の最初沈澱池に送水して浄化すると共に前記
処理場の最初沈澱池で汚泥を初沈汚泥として引抜いて汚
泥処理し、異常増加水量時には前記処理場のポンプ所に
て前記最初沈澱池に送水する下水と前記ポンプ所の雨天
時下水処理設備に送水する下水とに分流して夫々浄化処
理する下水処理施設に於いて、 前記処理場の雨天時下水処理設備で発生する汚泥を前記
処理場のポンプ所から前記最初沈澱池に送水する下水に
搬入する搬入手段を設けたことを特徴とする下水処理施
設。2. A pumping station into which the combined sewage of sewage and rainwater flows, and a processing station for purifying the sewage sent from the pumping station. From the pumping station to the pumping station of the processing station. When the amount of sewage to be sent is normal, all sewage is sent to the first settling basin of the treatment plant to be purified, and sludge is extracted as first settling sludge at the first settling basin of the treatment plant to treat sludge. In the sewage treatment facility that separates the sewage sent to the first settling basin at the pump station of the treatment plant and the sewage sent to the rainwater sewage treatment facility of the pump station to purify them respectively, A sewage treatment facility provided with a carrying-in means for carrying sludge generated in a sewage treatment facility in rainy weather into a sewage for sending water from the pumping station of the treatment plant to the first settling basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08900092A JP3185811B2 (en) | 1992-04-09 | 1992-04-09 | Sewage treatment facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08900092A JP3185811B2 (en) | 1992-04-09 | 1992-04-09 | Sewage treatment facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05317841A true JPH05317841A (en) | 1993-12-03 |
| JP3185811B2 JP3185811B2 (en) | 2001-07-11 |
Family
ID=13958539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08900092A Expired - Lifetime JP3185811B2 (en) | 1992-04-09 | 1992-04-09 | Sewage treatment facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3185811B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001025606A (en) * | 1999-05-11 | 2001-01-30 | Tokyo Tone Kaihatsu Kk | Turbid water cleaning system and apparatus |
| WO2002081050A1 (en) * | 2001-04-04 | 2002-10-17 | Ngk Insulators, Ltd. | Rain water treating device in combined sewage, and backwashing method therefor |
| JP2005218991A (en) * | 2004-02-06 | 2005-08-18 | Unitika Ltd | Filtration treatment method in combined sewer system |
| CN106354168A (en) * | 2016-10-14 | 2017-01-25 | 江苏大学镇江流体工程装备技术研究院 | Feedback control system of water supply pump station with in-series same pumps |
-
1992
- 1992-04-09 JP JP08900092A patent/JP3185811B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001025606A (en) * | 1999-05-11 | 2001-01-30 | Tokyo Tone Kaihatsu Kk | Turbid water cleaning system and apparatus |
| JP4683356B2 (en) * | 1999-05-11 | 2011-05-18 | 東京利根開発株式会社 | Muddy water purification device |
| WO2002081050A1 (en) * | 2001-04-04 | 2002-10-17 | Ngk Insulators, Ltd. | Rain water treating device in combined sewage, and backwashing method therefor |
| US6821445B2 (en) | 2001-04-04 | 2004-11-23 | Ngk Insulators, Ltd. | Rainwater-treating apparatus in combined sewer system and backwashing method therefor |
| JP2005218991A (en) * | 2004-02-06 | 2005-08-18 | Unitika Ltd | Filtration treatment method in combined sewer system |
| CN106354168A (en) * | 2016-10-14 | 2017-01-25 | 江苏大学镇江流体工程装备技术研究院 | Feedback control system of water supply pump station with in-series same pumps |
| CN106354168B (en) * | 2016-10-14 | 2019-02-05 | 江苏大学镇江流体工程装备技术研究院 | A kind of concatenated water supply pump station feedback control system of same pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3185811B2 (en) | 2001-07-11 |
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