JP2007296466A - Sludge discharge apparatus and operation method thereof - Google Patents
Sludge discharge apparatus and operation method thereof Download PDFInfo
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Abstract
Description
本発明は、浄水場等や製紙工場等の水処理設備に用いられ、被処理水から汚泥等を固液分離する処理槽の集泥部に沈降した汚泥を排出する排泥装置に関する。 TECHNICAL FIELD The present invention relates to a mud discharging apparatus that is used in water treatment facilities such as water purification plants and paper mills and discharges sludge settled in a mud collecting portion of a treatment tank that separates sludge and the like from treated water.
一般に、水源から取水され着水井に流入された原水は、急速攪拌機が設置された混和池で苛性ソーダ等のアルカリ剤やＰＡＣ（ポリ塩化アルミニウム）等の凝集剤が添加攪拌され、フロキュレータが設置されたフロック形成池で緩速攪拌することにより、浮遊物質等の凝集フロックを塊状に成長させ、本発明の対象とする処理槽の一例である沈殿池でフロックを沈殿処理した後に後段の浄水処理設備によりさらに浄化処理される。 In general, raw water taken from a water source and flowing into a landing well is added and stirred with an alkali agent such as caustic soda and PAC (polyaluminum chloride) in a mixing pond equipped with a rapid stirrer, and a flocculator is installed. The agglomeration flocs such as suspended solids are grown in a lump by slowly stirring in the floc formation pond, and after the flocs are settled in the sedimentation basin which is an example of the treatment tank targeted by the present invention, the subsequent water purification treatment equipment Is further purified.
図８に示すように、前記処理槽２４の底部基端側には集泥部２５が形成され、傾斜板沈降装置２７により底部に沈殿したフロックが汚泥掻き寄せ機２６で集泥部２５に集泥され、集泥部２５に設けられた排泥管３０により集泥部で濃縮された汚泥を吸引するように構成されている。しかし、前記集泥部２５に沈降した汚泥に架橋が形成されると効率的に吸引できないという問題や、吸引時に水みちＡが発生して濃縮汚泥の上方から上澄水が混入して希釈されるという問題があった。 As shown in FIG. 8, a mud collecting portion 25 is formed on the bottom base end side of the treatment tank 24, and flocs settled on the bottom by the inclined plate settling device 27 are collected in the mud collecting portion 25 by the sludge scraper 26. The sludge that has been mud and concentrated in the mud collecting portion is sucked by the mud discharge pipe 30 provided in the mud collecting portion 25. However, when the sludge settled in the mud collecting section 25 is formed with a bridge, it cannot be sucked efficiently, and a water channel A is generated at the time of suction, so that supernatant water is mixed from above the concentrated sludge and diluted. There was a problem.
そこで、特許文献１には、濃縮汚泥引抜時に微小な水みちの発生を防止するため、引抜濃縮汚泥の一部を槽底部に戻して沈殿した濃縮汚泥を撹拌して汚泥の均質化を行って汚泥界面上の上澄水の侵入の防止を図りつつ、濃縮汚泥を効率的に引き抜くようにした汚泥濃縮槽における濃縮汚泥の引抜装置として、図９に示すように、槽底部に濃縮汚泥を引き抜くようにした引抜管１００を配設するとともに、引抜管１００の上部を分岐してバイパス管１１０を接続し、バイパス管１１０の吐出口を槽底部に導き、濃縮汚泥引き抜き時に吸引した汚泥の一部を槽底部に戻して沈殿した濃縮汚泥を撹拌するようバイパス管１１０を配設した汚泥濃縮槽における濃縮汚泥の引抜装置が提案されている。 Therefore, in Patent Document 1, in order to prevent generation of a minute water channel during extraction of concentrated sludge, a part of the extracted concentrated sludge is returned to the bottom of the tank and the precipitated concentrated sludge is stirred to homogenize the sludge. As shown in FIG. 9, the concentrated sludge is drawn out from the bottom of the tank as an apparatus for drawing out the concentrated sludge in the sludge concentration tank that efficiently draws out the concentrated sludge while preventing intrusion of the supernatant water on the sludge interface. And a bypass pipe 110 is connected by branching the upper part of the extraction pipe 100, the discharge port of the bypass pipe 110 is guided to the bottom of the tank, and a part of the sludge sucked when the concentrated sludge is drawn is removed. An apparatus for extracting concentrated sludge in a sludge concentration tank in which a bypass pipe 110 is provided so as to stir the concentrated sludge that has been returned to the tank bottom and precipitated is proposed.
しかし、上述の処理槽では、沈殿した汚泥が集泥部に集泥されるだけで、濃縮促進効果が期待されず、排泥管により吸引された濃縮汚泥をさらに脱水処理する必要があり、特に汚泥濃縮性の低い冬場は低濃度状態で吸引せざるを得ず、大型の加圧脱水機が必要とされていた。 However, in the above-described treatment tank, the precipitated sludge is only collected in the mud collecting section, and the concentration promoting effect is not expected, and it is necessary to further dehydrate the concentrated sludge sucked by the sludge pipe, In winter, when the sludge concentration is low, it has to be sucked in a low concentration state, and a large pressure dehydrator is required.
さらに、近年、浄水設備ではクリプトスポリジウムのような病原性原虫を除去することを目的として、混和池で多量の凝集剤を投入して原水の浮遊物質を十分に除去する必要性が高まっているが、上述したＰＡＣ等のアルミ系の凝集剤によるフロックは非常に軽く且つ弾性に富むものであり、従来の沈殿池では十分に濃縮することができないという問題もあった。 Furthermore, in recent years, there is an increasing need to remove a large amount of flocculant in a mixing pond to sufficiently remove floating substances in raw water for the purpose of removing pathogenic protozoa such as Cryptosporidium in water purification facilities. The flocs produced by the above-described aluminum-based flocculants such as PAC are extremely light and elastic and have a problem that they cannot be sufficiently concentrated in a conventional sedimentation basin.
本発明の目的は、上述した従来の問題点に鑑み、沈殿池のような処理槽で汚泥を十分に濃縮して沈殿させ、濃縮された汚泥を効率的に排泥することにより後段の汚泥脱水の負荷を軽減することのできる排泥装置及び排泥装置の運転方法を提供する点にある。 In view of the above-described conventional problems, the object of the present invention is to sufficiently concentrate sludge in a treatment tank such as a sedimentation basin and precipitate it, and efficiently drain the concentrated sludge to remove the sludge in the subsequent stage. It is in the point which provides the operating method of the mud drainage apparatus and the mud drainage apparatus which can reduce the load of sewage.
上述の目的を達成するため、本発明による排泥装置の第一の特徴構成は、特許請求の範囲の書類の請求項１に記載した通り、処理槽の集泥部に沈降した汚泥を排出する排泥装置であって、前記集泥部から汚泥を流入させる開口部が形成され、前記集泥部に立設した濃縮促進管と、前記濃縮促進管の水位を前記処理槽の水位より上昇させて汚泥の濃縮を促進するように管内圧力を調整する圧力調整機構と、前記濃縮促進管に導かれた汚泥の上澄水を排水する排水機構と、前記濃縮促進管で濃縮された汚泥を排出する排泥管とを備えてなる点にある。 In order to achieve the above-mentioned object, the first characteristic configuration of the mud discharge device according to the present invention discharges the sludge that has settled in the mud collecting portion of the treatment tank as described in claim 1 of the document of the claims. It is a mud draining device, an opening for allowing sludge to flow from the mud collecting part is formed, and the concentration promoting pipe standing on the mud collecting part and the water level of the concentration promoting pipe are raised from the water level of the treatment tank. A pressure adjusting mechanism for adjusting the pressure in the pipe so as to promote the concentration of sludge, a drainage mechanism for draining the supernatant water of the sludge guided to the concentration promoting pipe, and discharging the sludge concentrated in the concentration promoting pipe It is in the point which comprises a drainage pipe.
上述の構成によると、前記処理槽の水位より前記濃縮促進管の水位を上昇させることで、前記濃縮促進管内では重力沈降作用が促進され、汚泥を効率よく濃縮させることができる。つまり、処理槽よりも濃縮促進管内の水位の方が高くなるため、濃縮促進管下部の汚泥は他の処理槽下部の汚泥よりも受ける水圧が高くなる。このため汚泥の圧密化が促進され、濃縮促進管内の下部に濃度の高い汚泥が蓄積されるようになり、引抜きを行なったときの汚泥濃度を高めることができ、効率の良い汚泥引抜きが行なえる。その際に排水機構により濃縮促進管から上澄水を排水することにより、新たな汚泥が濃縮促進管に導かれ、汚泥がより一層濃縮されるようになる。さらに、前記濃縮促進管内の濃縮された汚泥を前記排泥管から排出するため、排出時に汚泥の水みちが発生することなく安定的に濃縮汚泥を排出することができる。 According to the above configuration, by raising the water level of the concentration promoting tube from the water level of the treatment tank, gravity sedimentation action is promoted in the concentration promoting tube, and sludge can be concentrated efficiently. That is, since the water level in the concentration promoting pipe is higher than that in the treatment tank, the sludge in the lower part of the concentration promoting pipe has a higher water pressure than the sludge in the lower part of the other treatment tanks. For this reason, consolidation of sludge is promoted, and high-concentration sludge is accumulated in the lower part of the concentration accelerating tube, so that the sludge concentration can be increased when extraction is performed, and efficient sludge extraction can be performed. . At that time, by draining the supernatant water from the concentration promoting pipe by the drainage mechanism, new sludge is guided to the concentration promoting pipe, and the sludge is further concentrated. Furthermore, since the concentrated sludge in the said concentration promotion pipe | tube is discharged | emitted from the said sludge pipe | tube, a concentrated sludge can be discharged | emitted stably, without generating the water path of sludge at the time of discharge | emission.
同第二の特徴構成は、同請求項２に記載した通り、上述の第一特徴構成に加えて、前記排水機構が、前記濃縮促進管に接続され前記処理槽の水位より上方から上澄水を排水するサイホン管で構成され、前記サイホン管から上澄水を排水しながら濃縮促進する点にある。 In the second feature configuration, as described in claim 2, in addition to the first feature configuration described above, the drainage mechanism is connected to the concentration accelerating pipe, and the supernatant water is supplied from above the water level of the treatment tank. It consists of a siphon tube that drains, and the concentration is promoted while draining the supernatant water from the siphon tube.
前記サイホン管から前記濃縮促進管の上澄水を排水することにより、ポンプ等の別途の動力源を用いずに排水することができ、上述と同様に、前記集泥部に集泥された新たな汚泥が前記開口部から管内に流入するようになり、前記濃縮促進管内の汚泥の濃縮を促進することができ、前記排泥管より濃度の高い汚泥を排出することができる。 By draining the supernatant water of the concentration promoting tube from the siphon tube, it can be drained without using a separate power source such as a pump. Similarly to the above, new mud collected in the mud collecting portion The sludge flows into the pipe from the opening, can promote the concentration of the sludge in the concentration promoting pipe, and can discharge the sludge having a higher concentration than the drainage pipe.
同第三の特徴構成は、同請求項３に記載した通り、上述の第一または第二の特徴構成に加えて、前記濃縮促進管の開口部を濃縮促進時に開放し、排泥時に閉塞する開閉機構を備えている点にある。 In addition to the first or second characteristic configuration described above, the third characteristic configuration is opened at the time of concentration promotion and closed at the time of mud discharge, in addition to the first or second characteristic configuration described above. It is in the point of having an opening and closing mechanism.
排泥時に前記開口部を閉塞することにより、前記集泥部の汚泥水が前記濃縮促進管に流入することがないため、前記排泥管より、濃縮促進された前記濃縮促進管内の濃縮された汚泥のみを排出することができる。 By closing the opening at the time of mud discharge, the sludge water in the mud collection portion does not flow into the concentration promoting pipe, so that the concentration inside the concentration promoting pipe that has been promoted for concentration from the mud pipe is concentrated. Only sludge can be discharged.
本発明による排泥装置の運転方法の第一の特徴構成は、特許請求の範囲の書類の請求項４に記載した通り、集泥部から汚泥を流入させる開口部が形成され、前記集泥部に立設した濃縮促進管と、前記濃縮促進管の水位を前記処理槽の水位より上昇させて汚泥の濃縮を促進するように管内圧力を調整する圧力調整機構と、前記濃縮促進管に導かれた汚泥の上澄水を排水する排水機構と、前記濃縮促進管で濃縮された汚泥を排出する排泥管とを備えてなる排泥装置に対して、前記圧力調整機構により前記濃縮促進管の水位を前記処理槽の水位より上昇させ、前記排水機構により上澄水を排水しながら管内の汚泥を濃縮する濃縮処理工程と、前記上澄水の排水を停止させ、管内の汚泥を濃縮沈殿する沈殿処理工程と、濃縮沈殿した汚泥を排泥管から排泥する排泥工程とを有する点にある。 According to the first characteristic configuration of the method of operating the mud discharge apparatus according to the present invention, as described in claim 4 of the claims, an opening for allowing sludge to flow from the mud collecting part is formed, and the mud collecting part A concentration promoting pipe installed upright, a pressure adjusting mechanism for adjusting the pressure in the pipe so as to promote the concentration of sludge by raising the water level of the concentration promoting pipe above the water level of the treatment tank, and led to the concentration promoting pipe The drainage mechanism comprising a drainage mechanism for draining the supernatant water of the sludge and a drainage pipe for discharging the sludge concentrated in the concentration promotion pipe, the water level of the concentration promotion pipe by the pressure adjustment mechanism The concentration process step of concentrating sludge in the pipe while draining the supernatant water by the drainage mechanism, and the precipitation process step of concentrating and precipitating the sludge in the pipe by stopping the drainage of the supernatant water And the concentrated sludge from the sludge pipe. In that it has a waste sludge process of mud.
上述した構成によれば、沈殿工程で沈殿処理される汚泥量が濃縮処理工程で増量されるので、より一層濃縮沈殿効果が高まるのである。 According to the above-described configuration, the amount of sludge that is precipitated in the precipitation step is increased in the concentration treatment step, so that the concentration and precipitation effect is further enhanced.
同第二の特徴構成は、同請求項５に記載した通り、上述の第一特徴構成に加えて、前記排泥工程において、前記圧力調整機構は管内圧力を大気圧力に開放する点にある。 As described in the fifth aspect, the second characteristic configuration is that, in addition to the first characteristic configuration described above, in the mud discharging step, the pressure adjusting mechanism releases the pressure in the pipe to the atmospheric pressure.
減圧された前記濃縮促進管内の圧力を大気圧に開放すると、上昇した水位が、前記処理槽と同じ水位になるために、前記濃縮促進管内の汚泥水は、前記開口部より排出されようとする。排出されようとする汚泥水を前記排泥管より排出することにより、前記集泥部の汚泥水が前記開口部より前記濃縮促進管に流入することが無いため、前記濃縮促進管内の濃縮された汚泥を効率よく排出することができる。 When the decompressed pressure in the concentration promoting pipe is released to atmospheric pressure, the increased water level becomes the same level as that in the treatment tank, so that the sludge water in the concentration promoting pipe tends to be discharged from the opening. . By discharging the sludge water that is about to be discharged from the sludge pipe, the sludge water in the mud collection portion does not flow into the concentration promotion pipe from the opening, so that the concentrated inside of the concentration promotion pipe is concentrated. Sludge can be discharged efficiently.
同第三の特徴構成は、同請求項６に記載した通り、集泥部から汚泥を流入させる開口部が形成され、前記集泥部に立設した濃縮促進管と、前記濃縮促進管の水位を前記処理槽の水位より上昇させて汚泥の濃縮を促進するように管内圧力を調整する圧力調整機構と、前記濃縮促進管に導かれた汚泥の上澄水を排水する排水機構と、前記濃縮促進管に形成される汚泥濃縮領域の上端領域に前記濃縮促進管で濃縮された汚泥を排出する排泥管とを備えてなる排泥装置に対して、前記圧力調整機構により前記濃縮促進管の水位を前記処理槽の水位より上昇させ、前記排水機構により上澄水を排水しながら管内の汚泥を濃縮する濃縮処理工程と、濃縮沈殿した汚泥を排泥管から排泥する排泥工程とを有する点にある。 As described in the sixth aspect of the present invention, the third characteristic configuration is formed with an opening for allowing sludge to flow in from the mud collecting part, and a concentration promoting pipe standing on the mud collecting part, and a water level of the concentration promoting pipe A pressure adjusting mechanism for adjusting the pressure in the pipe so as to promote the concentration of sludge by raising the water level from the treatment tank, a drainage mechanism for draining the supernatant water of the sludge guided to the concentration promoting pipe, and the concentration promotion For the sludge discharge device comprising a sludge pipe for discharging the sludge concentrated in the concentration promotion pipe at the upper end region of the sludge concentration area formed in the pipe, the water level of the concentration promotion pipe by the pressure adjustment mechanism A concentration treatment step of concentrating sludge in the pipe while draining the supernatant water by the drainage mechanism, and a drainage step of draining the concentrated and precipitated sludge from the sludge pipe. It is in.
前記圧力調整機構により、前記濃縮促進管の水位を調節することで、上方に設けられたサイホン管から上澄水を排水しながら、前記濃縮領域の上端領域に設けられた前記排泥管から汚泥を排出することができるため連続運転が可能となる。 By adjusting the water level of the concentration promoting tube by the pressure adjusting mechanism, while draining the supernatant water from the siphon tube provided above, sludge is discharged from the drainage tube provided in the upper end region of the concentration region. Since it can be discharged, continuous operation is possible.
以上説明した通り、本発明によれば、沈殿池のような処理槽で汚泥を十分に濃縮して沈殿させ、濃縮された汚泥を効率的に排泥することにより後段の汚泥脱水の負荷を軽減することのできる排泥装置及び排泥装置の運転方法を提供することができるようになった。 As described above, according to the present invention, sludge is sufficiently concentrated and precipitated in a treatment tank such as a sedimentation basin, and the concentrated sludge is efficiently discharged to reduce the load of subsequent sludge dewatering. It is now possible to provide a mud discharger that can be used and a method of operating the mud discharger.
以下に本発明の実施形態を説明する。図１に示すように、浄水処理場等に設置される浄水処理設備１は、取水源３から取水された原水を被処理水として貯留する着水井４と、モータ７に接続された攪拌機８を備え、前記被処理水にアルカリ剤貯留槽５から供給されるアルカリ剤と凝集剤貯留槽６から供給されるＰＡＣ等の凝集剤とを混和する混和池９と、薬剤が混和された被処理水を後段ほど回転速度が遅くなるよう設定されたフロッキュレータ１０を備えたフロック形成池１１と、前記フロック形成地１１で形成されたフロックを汚泥として沈殿除去する薬品沈殿池１２と、前記薬品沈殿池１２の上澄水を濾過する濾過池１６と、前記濾過池１６で濾過された濾過水を貯留する浄水池１７等を備えている。 Embodiments of the present invention will be described below. As shown in FIG. 1, a water treatment facility 1 installed in a water treatment plant or the like includes a landing well 4 that stores raw water taken from a water intake source 3 as treated water, and a stirrer 8 connected to a motor 7. A mixing basin 9 for mixing the alkali agent supplied from the alkaline agent storage tank 5 and the coagulant such as PAC supplied from the coagulant storage tank 6 to the water to be treated; The floc formation pond 11 provided with the flocculator 10 set so that the rotational speed becomes slower in the latter stage, the chemical precipitation basin 12 for removing the floc formed in the flock formation site 11 as sludge, and the chemical precipitation pond 12 is provided with a filtration basin 16 for filtering the supernatant water, a water purification basin 17 for storing the filtrate filtered by the filtration basin 16 and the like.
さらに、前記薬品沈殿池１２で回収された汚泥を貯留する排泥池１８と、前記排泥池１８の汚泥を濃縮する濃縮槽１９と、前記濃縮槽１９で濃縮された汚泥を脱水させる脱水機２０と、前記脱水機２０で脱水された汚泥を回収するホッパ２１とからなる排泥脱水機構と、前記濾過池１６に設けられた濾材２２の洗浄に用いられた洗浄水を排水池２３で回収し、再度浄水処理を行う再浄水処理機構を備えている。 Further, a drainage pond 18 for storing the sludge collected in the chemical sedimentation basin 12, a concentration tank 19 for concentrating the sludge in the waste mud pond 18, and a dehydrator for dewatering the sludge concentrated in the concentration tank 19 20 and a hopper 21 that collects the sludge dehydrated by the dehydrator 20, and the washing water used for washing the filter medium 22 provided in the filtration basin 16 is collected by the drainage basin 23. In addition, a repurification water treatment mechanism for performing water purification treatment again is provided.
以下に被処理水の浄水処理工程を説明する。前記取水源３から取水される原水は、除じん機２により夾雑物が取り除かれた後に被処理水として前記着水井４へ貯留され、消毒剤貯留槽４５から消毒剤である次亜塩素酸ソーダが加えられる。前記着水井４の被処理水は前記混和池９に送られ、アルカリ剤である苛性ソーダ、凝集剤であるＰＡＣ等が各薬剤貯留槽５，６より供給され、前記混和池９に備え付けられた攪拌機８により混和される。 The water purification process of to-be-processed water is demonstrated below. Raw water taken from the water intake source 3 is stored in the landing well 4 as treated water after impurities are removed by the dust remover 2, and sodium hypochlorite as a disinfectant from the disinfectant storage tank 45. Is added. The water to be treated in the landing well 4 is sent to the mixing basin 9, and caustic soda as an alkaline agent, PAC as a flocculant, etc. are supplied from the respective chemical reservoirs 5 and 6, and a stirrer provided in the mixing basin 9. 8 to mix.
前記混和池９で各薬剤が攪拌された前記被処理水は前記フロッキュレータ１０を備えた前記フロック形成池１１へ送られる。前記フロック形成池１１は、各々フロッキュレータ１０を備えた第一室４６、第二室４７、第三室４８からなり、各フロッキュレータ１０の回転速度は後段になるほど遅くなる。前記混和池９で攪拌機８により生成した微小フロックを徐々にゆっくり撹拌することで、前記フロックはフロック粒径を成長させ、薬品沈殿池１２で沈殿分離しやすくなる。 The water to be treated in which the respective chemicals are stirred in the mixing basin 9 is sent to the flock formation pond 11 provided with the flocculator 10. The flocculation pond 11 includes a first chamber 46, a second chamber 47, and a third chamber 48 each having a flocculator 10, and the rotational speed of each flocculator 10 becomes slower as it goes downstream. By gradually stirring the fine flocs generated by the stirrer 8 in the mixing basin 9, the flocs grow in floc particle size and are easily precipitated and separated in the chemical precipitation basin 12.
フロックが形成された前記被処理水は汚泥水として前記薬品沈殿池１２に送られて汚泥が沈殿除去される。前記薬品沈殿池１２の上澄水が回収槽４９へ貯水された後に前記濾過池１６に送られる。前記濾過池１６は、上部から下部に水を通過させることで水に含まれる浮遊物を除去する濾材２２と、前記濾材２２の下部に濾材２２の洗浄を行う下部集水装置４３と、洗浄する場合に前記下部集水装置４３へ空気を送るブロア４４とで構成され、前記濾材２２を通過した濾過水が前記浄水池１７へ送られる。 The treated water in which the floc is formed is sent to the chemical sedimentation basin 12 as sludge water, and the sludge is removed by sedimentation. The supernatant water of the chemical sedimentation basin 12 is stored in the collection tank 49 and then sent to the filtration basin 16. The filtration basin 16 is washed with a filter medium 22 that removes floating substances contained in water by passing water from the upper part to the lower part, and a lower water collecting device 43 that cleans the filter medium 22 at the lower part of the filter medium 22. In some cases, the blower 44 sends air to the lower water collecting device 43, and the filtered water that has passed through the filter medium 22 is sent to the water purification basin 17.
尚、前記濾材２２には、目詰まりが生じないよう、上部には粒径が大きく比重が小さい砂利、下部には粒径が小さく比重が大きい砂等のフィルタ部材が用いられている。目詰まりが起きた場合は、前記ブロア４４から下部集水装置４３へ空気を送り、前記浄水池１７から前記濾過池１６の下から上へ水を流し、目詰まりを起こしたものを取り除くよう構成され、洗浄に利用された浄水は前記排水池２３に送られ再度浄水処理が行われる。 In order to prevent clogging, the filter medium 22 is made of gravel having a large particle size and a small specific gravity at the upper part, and sand having a small particle diameter and a large specific gravity at the lower part. In the case where clogging occurs, air is sent from the blower 44 to the lower water collecting device 43 so that water flows from the bottom of the filtration basin 16 to the top of the filtering basin 16 to remove the clogging. Then, the purified water used for the cleaning is sent to the drainage basin 23 and the purified water treatment is performed again.
以下、本発明による排泥装置及び排泥装置の運転方法について詳述する。前記薬品沈殿池１２は、図２に示すように、基端側に集泥部２５が形成された処理槽２４と、前記処理槽２４に流入した被処理水から浮遊するフロック等の汚泥を沈降させる傾斜板２７と、前記処理槽２４の底部に沈殿した汚泥を前記集泥部２５に掻き集める掻き寄せ機２６と、前記集泥部２５に沈降した汚泥を排出する排泥装置５０を備えて構成されている。 Hereinafter, the mud draining apparatus and the method for operating the mud draining apparatus according to the present invention will be described in detail. As shown in FIG. 2, the chemical sedimentation basin 12 sinks sludge such as floc floating from the treatment tank 24 in which the mud collecting portion 25 is formed on the base end side and the water to be treated that has flowed into the treatment tank 24. An inclined plate 27 to be collected, a scraper 26 for collecting sludge settled on the bottom of the treatment tank 24 to the mud collecting unit 25, and a mud discharging device 50 for discharging the sludge settled on the mud collecting unit 25. It is configured.
前記排泥装置５０は、下端側が次第に拡径するように形成されるとともに、下端に前記集泥部２５から汚泥を流入させる開口部２８が形成され、前記集泥部２５に立設した濃縮促進管２９と、前記濃縮促進管２９の水位を前記処理槽２４の水位より上昇させて汚泥の濃縮を促進するように管内圧力を調整する圧力調整機構Ｐと、前記濃縮促進管２９で濃縮された汚泥を排出する排泥管３０と、前記処理槽２４の水位より上方から汚泥水の上澄水を排水しながら濃縮促進するサイホン管３１，３２とで構成され、前記サイホン管３２からの排水は、上澄排水槽３３を介して前記着水井４もしくは排水池２３に戻される。尚、前記濃縮促進管２９内で前記排泥管３０の開口が下方を向く姿勢で配置されているが、上方を向く姿勢で配置することにより、前記濃縮促進管２９内に濃縮沈殿された汚泥を効率的に排泥することができる。 The drainage device 50 is formed so that the lower end side gradually expands in diameter, and an opening 28 for allowing sludge to flow from the mud collection portion 25 is formed at the lower end, and the concentration promotion is erected on the mud collection portion 25. Concentrated in the tube 29, the pressure adjusting mechanism P for adjusting the pressure in the tube so as to promote the concentration of sludge by raising the water level of the concentration promoting tube 29 from the water level of the treatment tank 24, and the concentration promoting tube 29. The sludge discharge pipe 30 for discharging sludge and the siphon pipes 31 and 32 for promoting concentration while draining the supernatant water of the sludge water from above the water level of the treatment tank 24, the drainage from the siphon pipe 32, The water is returned to the landing well 4 or the drainage basin 23 through the supernatant drainage tank 33. In addition, although the opening of the sludge pipe 30 is arranged in a posture facing downward in the concentration promoting pipe 29, the sludge concentrated and precipitated in the concentration promoting pipe 29 by being arranged in a posture facing upward. Can be efficiently drained.
前記圧力調整機構Ｐは、前記濃縮促進管２９と前記サイホン管３１，３２に連通した圧力調整管路３６と、前記圧力調整管路３６の一端側に接続された真空ポンプ３４と、前記圧力調整管路３６の連通部と前記真空ポンプ３４との間に設けられた真空バルブ３５と、前記連通部と前記圧力調整管路３６の大気開放された開放端３８との間に設けられた大気開放バルブ３７を備えて構成されている。 The pressure adjustment mechanism P includes a pressure adjustment pipe 36 communicating with the concentration promoting pipe 29 and the siphon pipes 31 and 32, a vacuum pump 34 connected to one end side of the pressure adjustment pipe 36, and the pressure adjustment. A vacuum valve 35 provided between the communicating portion of the pipe line 36 and the vacuum pump 34, and an open air atmosphere provided between the communicating part and the open end 38 of the pressure adjusting pipe line 36 opened to the atmosphere. A valve 37 is provided.
前記処理槽２４では、汚泥水に含まれるフロック等が重力沈降作用により前記処理槽２４の槽底へ蓄積する。また、浮遊するフロックは傾斜板２７により上方へ浮遊することなく槽底へ沈められる。槽底へ蓄積したフロック等は掻き寄せ機２６に設けられた掻き寄せ板２６ａにより前記集泥部２５へと集められる。 In the treatment tank 24, flocs and the like contained in the sludge water accumulate on the bottom of the treatment tank 24 due to gravity sedimentation. Further, the floating flock is sunk to the bottom of the tank without floating upward by the inclined plate 27. The flocs and the like accumulated in the bottom of the tank are collected to the mud collecting unit 25 by a scraping plate 26a provided in the scraper 26.
前記大気開放バルブ３７が開放された状態で、前記開口部２８から前記濃縮促進管２９に流入する汚泥が混入した被処理水は前記処理槽２４と同水位になるが、この状態で前記大気開放バルブ３７を閉塞し、且つ、前記真空バルブ３５を開放するとともに前記真空ポンプ３４を作動させることにより、図３に示すように、前記濃縮促進管２９の水位が前記処理槽２４の水位より高さ（ｈ）の水位、つまり、前記サイホン管３１の接続レベルよりやや下方位置となるように調整した後に前記真空バルブ３５を閉塞する。 In the state where the air release valve 37 is opened, the water to be treated mixed with the sludge flowing into the concentration promoting pipe 29 from the opening 28 is at the same water level as the treatment tank 24. By closing the valve 37 and opening the vacuum valve 35 and operating the vacuum pump 34, the water level of the concentration promoting tube 29 is higher than the water level of the treatment tank 24 as shown in FIG. After adjusting the water level in (h), that is, slightly below the connection level of the siphon tube 31, the vacuum valve 35 is closed.
前記濃縮促進管２９の水位を前記処理槽２４の水位より高さ（ｈ）に上昇させることで、前記集泥部２５に比べて重力沈降作用が促進され、汚泥が効率よく濃縮される沈殿処理工程が実行される。 By raising the water level of the concentration promoting pipe 29 to a height (h) higher than the water level of the treatment tank 24, the sedimentation process is promoted by gravity settling compared to the mud collecting section 25, and sludge is efficiently concentrated. The process is executed.
ある程度沈降処理工程が進むと、図４に示すように、前記真空バルブ３５を開放して、前記真空ポンプ３４により前記濃縮促進管２９の内部水位を前記サイホン管３１の接続部より高い高さ（ｈ＋ａ）の位置まで上昇させた後に前記真空バルブ３５を閉塞する。 When the sedimentation process proceeds to some extent, as shown in FIG. 4, the vacuum valve 35 is opened, and the vacuum pump 34 causes the internal water level of the concentration promoting pipe 29 to be higher than the connection part of the siphon pipe 31 ( After raising to the position h + a), the vacuum valve 35 is closed.
前記濃縮促進管２９内の水位が高さ（ｈ＋ａ）の位置まで上昇すると、前記フロックが含まれない上澄水が前記サイホン管３１を介して前記上澄排水槽３３へ排水される。上澄水が前記サイホン管３１を介して排水されるにつれて前記集泥部２５から新たな汚泥が流入し、前記濃縮促進管２９の汚泥水はさらに濃縮される濃縮処理工程が実行される。 When the water level in the concentration promoting pipe 29 rises to a position of height (h + a), the supernatant water not containing the floc is drained to the supernatant drainage tank 33 through the siphon pipe 31. As the supernatant water is drained through the siphon pipe 31, new sludge flows from the mud collecting section 25, and a concentration treatment step is performed in which the sludge water in the concentration promoting pipe 29 is further concentrated.
所定時間または所定量の上澄水が排水されると、前記大気開放バルブ３７を調整して、前記濃縮促進管２９及び前記上澄管３２内の水位が高さ（ｈ）となるように圧力を調整し前記大気開放バルブ３７を閉の状態とする。 When the supernatant water is drained for a predetermined time or a predetermined amount, the air release valve 37 is adjusted so that the water level in the concentration promoting tube 29 and the supernatant tube 32 becomes a height (h). The atmospheric release valve 37 is closed by adjusting.
前記沈殿処理工程と濃縮処理工程が繰り返され、前記濃縮促進管２９に汚泥が十分に濃縮されると、図５に示すように、前記大気開放バルブ３７を開の状態にして、前記排泥管３０より前記濃縮促進管２９内の濃縮された汚泥水をポンプ（図示せず）により吸引排出する。 When the precipitation treatment step and the concentration treatment step are repeated and the sludge is sufficiently concentrated in the concentration promoting tube 29, as shown in FIG. 5, the air release valve 37 is opened, and the waste mud tube From 30, the concentrated sludge water in the concentration promoting pipe 29 is sucked and discharged by a pump (not shown).
尚、前記沈殿処理工程と濃縮処理工程の繰り返し回数は、汚泥の特性や季節により適宜設定すればよく、冬季は夏季より回数を多く設定することにより効果的に濃縮処理される。尚、前記沈殿処理工程と濃縮処理工程は必ずしも繰り返す必要は無い。 The number of repetitions of the precipitation treatment step and the concentration treatment step may be set as appropriate depending on the characteristics and season of the sludge, and the concentration treatment is effectively performed in winter by setting the number more times than in summer. Note that the precipitation treatment step and the concentration treatment step are not necessarily repeated.
前記排泥管３０より吸引回収された汚泥は前記排泥地１８へ送られる。所定の量排泥を行うと、前記大気バルブ３７を閉の状態にして、前記沈殿処理工程に戻り、上述の作業を繰り返し行いながら前記排泥管３０より濃縮された排泥を排出する。 The sludge sucked and collected from the mud pipe 30 is sent to the mud drain 18. When a predetermined amount of mud is discharged, the atmospheric valve 37 is closed, the process returns to the sedimentation process, and the concentrated mud is discharged from the mud pipe 30 while repeating the above operation.
このような排泥装置は、既存の薬品沈殿池であっても容易に施工でき、設備コストをかけずに汚水処理ポンプ設備等の各種の水処理設備に適用することができる。 Such a mud discharge device can be easily constructed even in an existing chemical sedimentation basin, and can be applied to various water treatment facilities such as a sewage treatment pump facility without incurring equipment costs.
以下、本発明の別実施形態を説明する。上述した実施形態では、前記集泥部２５から汚泥を流入させる開口部２８が、前記濃縮促進管２９の下端部に前記集泥部２５の底面に対向するように形成されたものを説明したが、前記開口部２８は、前記集泥部２５から汚泥を流入させることのできる位置であればその形状や位置は特に制限されるものではない。 Hereinafter, another embodiment of the present invention will be described. In the above-described embodiment, the description has been given of the case where the opening 28 through which the sludge flows from the mud collecting portion 25 is formed at the lower end portion of the concentration promoting pipe 29 so as to face the bottom surface of the mud collecting portion 25. The shape and position of the opening 28 are not particularly limited as long as sludge can be introduced from the mud collecting portion 25.
上述の実施形態では、濃縮促進管２９は、下端側が次第に拡径するように形成されたものを説明したが、前記濃縮促進管の形状はこれに限るものではなく、断面が同じ形状で構成される円筒や角筒等であってもよい。 In the above-described embodiment, the concentration promoting tube 29 has been described so that the lower end side is gradually expanded in diameter. However, the shape of the concentration promoting tube is not limited to this, and the cross section is configured in the same shape. It may be a cylinder or a square tube.
上述の実施形態では、前記排泥管３０を前記濃縮促進管２９の下部に設けたものを説明したが、図６に示すように、前記排泥管３０を前記濃縮促進管２９に形成される汚泥濃縮領域の上端領域に設けてもよい。汚泥濃縮領域の上端領域に前記排泥管３０を設けることで、上方に設けられたサイホン管３１から上澄水を排水しながら、前記集泥部２５から新たな汚泥を流入させて、前記濃縮促進管２９内で汚泥を濃縮し、同時に前記濃縮領域の上端領域に設けられた前記排泥管３０から汚泥を排出することができ、効率的な連続運転ができるようになる。 In the above-described embodiment, the drainage pipe 30 provided in the lower part of the concentration promoting pipe 29 has been described. However, as shown in FIG. 6, the drainage pipe 30 is formed in the concentration promoting pipe 29. You may provide in the upper end area | region of a sludge concentration area | region. By providing the drainage pipe 30 in the upper end area of the sludge concentration area, new sludge is allowed to flow from the mud collection part 25 while draining the supernatant water from the siphon pipe 31 provided above, thereby promoting the concentration. The sludge can be concentrated in the pipe 29, and at the same time, the sludge can be discharged from the exhaust pipe 30 provided in the upper end region of the concentration region, so that efficient continuous operation can be performed.
上述した実施形態では、濃縮促進管２９内の水位を調整することにより、サイホン管３１から上澄水を排水しながら汚泥を濃縮処理工程と、上澄水の排水を停止させ、管内の汚泥を濃縮沈殿する沈殿処理工程を実行するものを説明したが、サイホン管３１にバルブを設けて、バルブの開放時に濃縮処理工程が実行され、バルブの閉塞時に沈殿処理工程が実行されるように切り替えることにより、濃縮促進管２９内の水位の調整を行なわずに濃縮処理工程と沈殿処理工程を切り替えることができるようになる。 In the embodiment described above, by adjusting the water level in the concentration promoting pipe 29, the sludge is concentrated while the supernatant water is drained from the siphon pipe 31, the drainage of the supernatant water is stopped, and the sludge in the pipe is concentrated and precipitated. However, by providing a valve in the siphon tube 31, the concentration process is performed when the valve is opened, and the precipitation process is performed when the valve is closed. It becomes possible to switch between the concentration treatment step and the precipitation treatment step without adjusting the water level in the concentration promotion tube 29.
上述した実施形態では、前記濃縮促進管２９の上澄水を排水するためにサイホン管３１を用いたものを説明したが、前記濃縮促進管２９内の水位の上下により上澄水を排出する構成であればこれに限るものではなく、ポンプ等により吸引排水するものであってもよい。 In the embodiment described above, the siphon pipe 31 is used to drain the supernatant water of the concentration promoting pipe 29. However, the supernatant water may be discharged depending on the level of water in the concentration promoting pipe 29. However, the present invention is not limited to this, and suction drainage may be performed by a pump or the like.
上述した実施形態では、前記濃縮促進管２９に前記処理槽２４の水位より上方から上澄水を排水するサイホン管３１を設けたものを説明したが、サイホン管３１設けずに排泥装置を構成するものであってもよい。つまり、集泥部から汚泥を流入させる開口部が形成され、前記集泥部に立設した濃縮促進管と、前記濃縮促進管の水位を前記処理槽の水位より上昇させて汚泥の濃縮を促進するように管内圧力を調整する圧力調整機構と、前記濃縮促進管で濃縮された汚泥を排出する排泥管とを備えて排泥装置を構成することができる。 In the above-described embodiment, the concentration promoting pipe 29 is provided with the siphon pipe 31 for draining the supernatant water from above the water level of the treatment tank 24. However, the mud discharge device is configured without the siphon pipe 31 provided. It may be a thing. In other words, an opening for allowing sludge to flow from the mud collection part is formed, and the concentration promoting pipe standing in the mud collecting part and the water level of the concentration promoting pipe are raised from the water level of the treatment tank to promote the concentration of sludge. Thus, the sludge discharge device can be configured by including a pressure adjusting mechanism for adjusting the pressure in the pipe and a sludge pipe for discharging the sludge concentrated in the concentration promoting pipe.
この場合、前記圧力調整機構により前記濃縮促進管の水位を前記処理槽の水位より上昇させ、管内の汚泥を濃縮沈殿する沈殿処理工程と、濃縮沈殿した汚泥を排泥管から排泥する排泥工程とを繰り返すことにより汚泥の濃縮処理が実行される。 In this case, the pressure adjusting mechanism raises the water level of the concentration promoting pipe from the water level of the treatment tank, concentrates and precipitates sludge in the pipe, and waste mud discharges the concentrated and precipitated sludge from the sludge pipe. The sludge concentration process is executed by repeating the steps.
上述した実施形態では、圧力調整機構を、真空ポンプ３４と、前記濃縮促進管２９と前記サイホン管３１，３２とを前記真空ポンプ３４に接続する真空バルブ３５を備えた圧力調整管路３６と、前記圧力調整管路３６に備えられた大気開放バルブ３７とで構成されるものを説明したが、圧力調整機構としては、前記濃縮促進管２９の水位を調節することが可能な機構であればこのような構成に限定されるものではなく、例えば、前記濃縮促進管２９の軸心方向長さが変更調節できるような多重管で構成し、管の上端に開閉自在なバルブを設け、当該バルブを閉塞した状態で前記濃縮促進管２９を伸張させることにより水位を上昇させる等の機構を採用することも可能である。 In the above-described embodiment, the pressure adjustment mechanism includes the vacuum pump 34, the pressure adjustment pipe line 36 including the vacuum valve 35 that connects the concentration promoting pipe 29 and the siphon pipes 31 and 32 to the vacuum pump 34, and Although what was comprised with the atmospheric | air release valve | bulb 37 provided in the said pressure regulation pipe line 36 was demonstrated, as a pressure regulation mechanism, if this is a mechanism which can adjust the water level of the said concentration promotion pipe | tube 29, this will be It is not limited to such a configuration, for example, it is composed of a multiple tube whose length in the axial center direction of the concentration promoting tube 29 can be changed and adjusted, and a valve that can be opened and closed is provided at the upper end of the tube. It is also possible to employ a mechanism such as raising the water level by extending the concentration promoting tube 29 in the closed state.
上述した実施形態に加え、前記濃縮促進管２９の開口部２８を濃縮促進時に開放し、排泥時に閉塞する開閉機構を備えることにより、排泥時に集泥部からのさほど濃縮処理されていない汚泥の吸引を回避することも可能である。 In addition to the embodiment described above, the opening 28 of the concentration promoting pipe 29 is opened at the time of concentration promotion, and provided with an opening and closing mechanism that closes at the time of mud discharge, so that the sludge that has not been concentrated so much from the mud collecting portion at the time of mud discharge. It is also possible to avoid suction.
具体的には、図７に示すように、前記開閉機構は、前記開口部２８を閉塞させる開閉蓋４２と、前記開閉蓋４２に設けられた取付部４０に接続された支持部材４１と、前記支持部材４１を介して接続された油圧シリンダ３９で構成され、前記油圧シリンダ３９を駆動させることで、前記開閉蓋４２を上下させ、前記開口部２８を閉塞、開放するように構成することができる。 Specifically, as shown in FIG. 7, the opening / closing mechanism includes an opening / closing lid 42 that closes the opening 28, a support member 41 connected to an attachment portion 40 provided on the opening / closing lid 42, The hydraulic cylinder 39 is connected via a support member 41. By driving the hydraulic cylinder 39, the opening / closing lid 42 can be moved up and down, and the opening 28 can be closed and opened. .
前記開閉機構として、前記開口部２８を閉塞、開放する機構であれば、前記濃縮促進管２９にスライド式やカメラの絞り機構に用いられるような絞り羽根機構で開閉蓋を開閉作動させるように構成するもの等、適宜構成することができる。 If the opening / closing mechanism is a mechanism that closes and opens the opening 28, the concentration promoting tube 29 is configured to open / close the opening / closing lid with a sliding blade mechanism or a diaphragm blade mechanism used for a diaphragm mechanism of a camera. It can be configured as appropriate.
上述した実施形態では、本発明による排泥装置及び排泥装置の運転方法を浄水処理場等に設置される浄水処理設備に適用したものを説明したが、本発明による灰泥装置等は浄水処理設備に適用される以外に、集泥部に集泥された汚泥を濃縮処理する必要のある任意の設備に適用することが可能であり、例えば、製紙工場における製紙スラッジの濃縮回収等、各種の水処理設備に適用することができる。 In the above-described embodiment, the mud draining apparatus and the method of operating the mud draining apparatus according to the present invention have been described as applied to a water purification treatment facility installed in a water purification plant or the like. In addition to being applied to equipment, it can be applied to any equipment that needs to concentrate sludge collected in the mud collection section. It can be applied to water treatment facilities.
上述した実施形態は何れも本発明の一例に過ぎず、各部の具体的構成は、本発明による作用効果を奏する範囲において適宜変更設計することができることはいうまでもない。 Any of the above-described embodiments is merely an example of the present invention, and it is needless to say that the specific configuration of each part can be appropriately modified and designed within the scope of the effects of the present invention.
１：浄水処理設備
２：除じん機
３：取水源
４：着水井
５：アルカリ剤貯留槽
６：凝集貯留槽
７：モータ
８：攪拌機
９：混和池
１０：フロッキュレータ
１１：フロック形成池
１２：薬品沈殿池
１６：濾過池
１７：浄水池
１８：排泥池
１９：濃縮槽
２０：脱水機
２１：ホッパ
２２：濾材
２３：排水池
２４：処理槽
２５：集泥部
２６：掻き寄せ機
２６ａ：掻き寄せ板
２７：傾斜板
２８：開口部
２９：濃縮促進管
３０：排泥管
３１：サイホン管
３２：サイホン管
３３：上澄排水槽
３４：真空ポンプ
３５：真空バルブ
３６：圧力調整管路
３７：大気開放バルブ
３８：開放端
３９：油圧シリンダ
４０：取付部
４１：支持部材
４２：閉塞蓋
４３：下部集水装置
４４：ブロア
４５：消毒剤貯留槽
４６：第一室
４７：第二室
４８：第三室
４９：回収槽
５０：排泥装置
1: Water treatment facility 2: Dust remover 3: Intake source 4: Intake well 5: Alkaline agent storage tank 6: Coagulation storage tank 7: Motor 8: Stirrer 9: Mixing pond 10: Flocculator 11: Flock formation pond 12: Chemical sedimentation basin 16: Filtration basin 17: Water purification basin 18: Waste mud basin 19: Concentration tank 20: Dehydrator 21: Hopper 22: Filter medium 23: Drainage pond 24: Treatment tank 25: Mud collector 26: Scraper 26a: Scraping plate 27: Inclined plate 28: Opening 29: Concentration promoting pipe 30: Mud pipe 31: Siphon pipe 32: Siphon pipe 33: Supernatant drain 34: Vacuum pump 35: Vacuum valve 36: Pressure adjusting line 37 : Air release valve 38: Open end 39: Hydraulic cylinder 40: Mounting portion 41: Support member 42: Blocking lid 43: Lower water collecting device 44: Blower 45: Disinfectant reservoir 46: First chamber 47: Second chamber 48 : Third chamber 49: Recovery tank 50: Waste mud Location
Claims (6)
前記圧力調整機構により前記濃縮促進管の水位を前記処理槽の水位より上昇させ、前記排水機構により上澄水を排水しながら管内の汚泥を濃縮する濃縮処理工程と、前記上澄水の排水を停止させ、管内の汚泥を濃縮沈殿する沈殿処理工程と、濃縮沈殿した汚泥を排泥管から排泥する排泥工程とを有する排泥装置の運転方法。 An opening for allowing the sludge to flow from the mud collecting part is formed, and the concentration promoting pipe standing in the mud collecting part and the water level of the concentration promoting pipe are raised from the water level of the treatment tank so as to promote the concentration of sludge A pressure adjusting mechanism for adjusting the pressure in the pipe, a drainage mechanism for draining the supernatant water of the sludge guided to the concentration promoting pipe, and a drainage pipe for discharging the sludge concentrated in the concentration promoting pipe. For the mud drainer
The concentration control step of raising the water level of the concentration promoting pipe by the pressure adjusting mechanism from the water level of the treatment tank, and concentrating sludge in the pipe while draining the supernatant water by the drainage mechanism, and stopping the drainage of the supernatant water. An operation method of a sludge discharger comprising a precipitation treatment step for concentrating and precipitating sludge in a pipe, and a waste mud step for discharging sludge that has been concentrated and precipitated from a sludge pipe.
前記圧力調整機構により前記濃縮促進管の水位を前記処理槽の水位より上昇させ、前記排水機構により上澄水を排水しながら管内の汚泥を濃縮する濃縮処理工程と、濃縮沈殿した汚泥を排泥管から排泥する排泥工程とを有する排泥装置の運転方法。 An opening for allowing the sludge to flow from the mud collecting part is formed, and the concentration promoting pipe standing in the mud collecting part and the water level of the concentration promoting pipe are raised from the water level of the treatment tank so as to promote the concentration of sludge A pressure adjusting mechanism for adjusting the pressure in the pipe, a drainage mechanism for draining the supernatant water of the sludge guided to the concentration promoting pipe, and the concentration promoting pipe at the upper end region of the sludge concentration area formed in the concentration promoting pipe. For a sludge discharger equipped with a sludge pipe that discharges concentrated sludge,
A concentration treatment step of concentrating sludge in the pipe while raising the water level of the concentration promoting pipe by the pressure adjusting mechanism from the water level of the treatment tank and draining the supernatant water by the drainage mechanism, and the sludge that has concentrated and settled A method for operating a mud draining device having a mud draining process for draining mud from the waste water.
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|---|---|---|---|
| JP2006126164A JP2007296466A (en) | 2006-04-28 | 2006-04-28 | Sludge discharge apparatus and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006126164A JP2007296466A (en) | 2006-04-28 | 2006-04-28 | Sludge discharge apparatus and operation method thereof |
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|---|---|
| JP2007296466A true JP2007296466A (en) | 2007-11-15 |
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|---|---|---|---|
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| JP2013132570A (en) * | 2011-12-26 | 2013-07-08 | Swing Corp | Sand pumping and transporting apparatus |
| CN104023806A (en) * | 2011-12-08 | 2014-09-03 | 英文特环境及工艺股份公司 | Decanter |
| CN107648947A (en) * | 2017-11-10 | 2018-02-02 | 重庆林德科技发展有限公司 | High temperature dust waste gas treatment device |
| CN107648891A (en) * | 2017-11-10 | 2018-02-02 | 重庆林德科技发展有限公司 | The settling tank administered for sulphur-containing exhaust gas |
| CN113877252A (en) * | 2021-10-29 | 2022-01-04 | 成都源蓉科技有限公司 | Concentrated sludge discharge method and application and magnetic sedimentation tank |
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2006
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104023806A (en) * | 2011-12-08 | 2014-09-03 | 英文特环境及工艺股份公司 | Decanter |
| CN104023806B (en) * | 2011-12-08 | 2016-03-16 | 英文特环境及工艺股份公司 | Decanter |
| TWI586418B (en) * | 2011-12-08 | 2017-06-11 | 因文特環境及生產工藝技術有限公司 | Decanter |
| JP2013132570A (en) * | 2011-12-26 | 2013-07-08 | Swing Corp | Sand pumping and transporting apparatus |
| CN107648947A (en) * | 2017-11-10 | 2018-02-02 | 重庆林德科技发展有限公司 | High temperature dust waste gas treatment device |
| CN107648891A (en) * | 2017-11-10 | 2018-02-02 | 重庆林德科技发展有限公司 | The settling tank administered for sulphur-containing exhaust gas |
| CN113877252A (en) * | 2021-10-29 | 2022-01-04 | 成都源蓉科技有限公司 | Concentrated sludge discharge method and application and magnetic sedimentation tank |
| CN114349274A (en) * | 2021-12-28 | 2022-04-15 | 张家港市清源水处理有限公司 | Biochemical method sewage treatment system and sewage treatment method thereof |
| CN114349274B (en) * | 2021-12-28 | 2024-03-19 | 张家港市清源水处理有限公司 | Biochemical sewage treatment system and sewage treatment method thereof |
| JP7246800B1 (en) * | 2022-10-28 | 2023-03-28 | 龍 静観 | sedimentation tank |
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