JP4575270B2 - Excess sludge reduction equipment - Google Patents

Excess sludge reduction equipment Download PDF

Info

Publication number
JP4575270B2
JP4575270B2 JP2005309614A JP2005309614A JP4575270B2 JP 4575270 B2 JP4575270 B2 JP 4575270B2 JP 2005309614 A JP2005309614 A JP 2005309614A JP 2005309614 A JP2005309614 A JP 2005309614A JP 4575270 B2 JP4575270 B2 JP 4575270B2
Authority
JP
Japan
Prior art keywords
sludge
ozone
filtration membrane
digestion
decomposition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2005309614A
Other languages
Japanese (ja)
Other versions
JP2007117796A5 (en
JP2007117796A (en
Inventor
静都 石木
Original Assignee
日成プラント株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 日成プラント株式会社 filed Critical 日成プラント株式会社
Priority to JP2005309614A priority Critical patent/JP4575270B2/en
Publication of JP2007117796A publication Critical patent/JP2007117796A/en
Publication of JP2007117796A5 publication Critical patent/JP2007117796A5/ja
Application granted granted Critical
Publication of JP4575270B2 publication Critical patent/JP4575270B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Sludge (AREA)

Description

本発明は、生活排水や産業排水を排水処理設備で処理した際に発生する余剰汚泥を効率的に減量化すると共に、より清浄化した処理水を放流することのできる余剰汚泥減量化設備に関するものである。   The present invention relates to a facility for reducing excess sludge that can efficiently reduce excess sludge generated when wastewater and industrial wastewater are treated with wastewater treatment equipment, and can discharge more purified treated water. It is.

生活排水や産業排水は、通常、標準活性汚泥法や膜分離活性汚泥法によって処理されるが、その際、主として汚泥微生物からなる余剰汚泥が発生する。近年、この余剰汚泥の最終処分場が減少しており、その分、処分費用が高騰し、企業などにとって大きな負担となっている。   Domestic wastewater and industrial wastewater are usually treated by a standard activated sludge method or a membrane-separated activated sludge method. At this time, surplus sludge mainly composed of sludge microorganisms is generated. In recent years, the final disposal site for surplus sludge has decreased, and the disposal cost has soared, which has become a heavy burden on companies.

これまで、この余剰汚泥を減量化する装置が種々創案され使用されているが、減量化効率などの点でさらなる改善が望まれている。また、従来は、余剰汚泥を処理するための脱水機、乾燥機、焼却機などの設備を必要とするので、こうした設備を不要とすることも望まれる。また、余剰汚泥を減量化した後の処理水を、さらに清浄化して放流することも望まれる。   Until now, various devices for reducing the excess sludge have been created and used, but further improvements are desired in terms of reduction efficiency. In addition, conventionally, since facilities such as a dehydrator, a dryer, and an incinerator for treating excess sludge are required, it is also desired that such facilities be unnecessary. Moreover, it is also desired that the treated water after reducing the excess sludge is further purified and discharged.

本発明はこうした問題に鑑み創案されたもので、余剰汚泥をより効率的に減量化し、かつ、より清浄化した処理水を放流することのできる余剰汚泥減量化設備を提供することを課題とする。   The present invention was devised in view of these problems, and it is an object of the present invention to provide a surplus sludge reduction facility that can reduce excess sludge more efficiently and discharge more purified treated water. .

図１および図２を参照して説明する。請求項１に記載の余剰汚泥減量化設備１は、生活排水や産業排水を排水処理設備で処理した際に発生する余剰汚泥Ｓを連続的に処理する設備であって、少なくとも、余剰汚泥Ｓを一時的に貯留し、内部に、散気装置１１およびタイマー１３で作動する送入ポンプ１２を備える汚泥貯留槽１０と、前記汚泥貯留槽１０の余剰汚泥Ｓが、前記送入ポンプ１２によって自動的に供給され、内部である消化分解槽２１に、濾過膜群２２と上昇気泡の一部が該濾過膜群に接触する超微細気泡装置２３を備えた消化分解装置２０と、前記消化分解装置２０の消化分解槽２１にオゾンを、ブロワー３２から供給される空気と共に供給するオゾン発生機３０と、前記濾過膜群２２を通過した処理水Ｗを、内部に設けた殺菌処理装置４１を通して一時的に貯留した後、放流する処理水貯留槽４０と、前記消化分解槽２１で溶解しなかった排オゾンを、規定濃度以下に処理して放出する排オゾン除去装置５０と、を備えてなるものである。   This will be described with reference to FIGS. The surplus sludge reduction facility 1 according to claim 1 is a facility for continuously processing surplus sludge S generated when domestic wastewater or industrial wastewater is treated with a wastewater treatment facility, and at least the surplus sludge S is removed. The sludge storage tank 10 provided with a feed pump 12 that is temporarily stored and operated by the air diffuser 11 and the timer 13 and the excess sludge S in the sludge storage tank 10 are automatically fed by the feed pump 12. The digestion / decomposition apparatus 20 is provided with an ultrafine bubble device 23 in which the filtration membrane group 22 and a part of the rising bubbles are in contact with the filtration membrane group. The ozone generator 30 that supplies ozone to the digestion / decomposition tank 21 together with the air supplied from the blower 32 and the treated water W that has passed through the filter membrane group 22 are temporarily passed through the sterilization treatment device 41 provided inside. Storage After, the treated water storage tank 40 to discharge, a discharge ozone that has not dissolved in the digestive decomposition bath 21, a discharging ozone removal device 50 to release by treatment below the specified concentration, it is made comprises a.

請求項２に記載の余剰汚泥減量化設備１は、生活排水や産業排水を排水処理設備で処理した際に発生する余剰汚泥Ｓを連続的に処理する設備であって、少なくとも、余剰汚泥Ｓを一時的に貯留し、内部に、散気装置１１およびタイマー１３で作動する送入ポンプ１２を備える汚泥貯留槽１０と、前記汚泥貯留槽１０の余剰汚泥Ｓが、前記送入ポンプ１２によって自動的に供給され、内部である消化分解槽２１に、濾過膜群２２と上昇気泡の一部が該濾過膜群に接触する超微細気泡装置２３を備えた消化分解装置２０と、前記消化分解装置２０の消化分解槽２１にオゾンを、ブロワー３２から供給される空気と共に供給するオゾン発生機３０と、前記濾過膜群２２を通過した処理水Ｗを、内部に設けた殺菌処理装置４１を通して一時的に貯留した後、放流する処理水貯留槽４０と、前記消化分解槽２１で溶解しなかった排オゾンを、規定濃度以下に処理して放出する排オゾン除去装置５０と、前記濾過膜群２２閉塞時に該濾過群に強力洗浄用次亜塩素を供給する膜洗浄管６０と、を備えてなるものである。   The surplus sludge reduction facility 1 according to claim 2 is a facility for continuously treating surplus sludge S generated when domestic wastewater or industrial wastewater is treated with a wastewater treatment facility, and at least the surplus sludge S is removed. The sludge storage tank 10 provided with a feed pump 12 that is temporarily stored and operated by the air diffuser 11 and the timer 13 and the excess sludge S in the sludge storage tank 10 are automatically fed by the feed pump 12. The digestion / decomposition apparatus 20 is provided with an ultrafine bubble device 23 in which a filtration membrane group 22 and a part of the rising bubbles are in contact with the filtration membrane group. The ozone generator 30 that supplies ozone to the digestion / decomposition tank 21 together with the air supplied from the blower 32, and the treated water W that has passed through the filtration membrane group 22 are temporarily passed through the sterilization treatment device 41 provided inside. Storage Thereafter, the treated water storage tank 40 to be discharged, the exhausted ozone removal apparatus 50 that processes and discharges the exhausted ozone not dissolved in the digestion / decomposition tank 21 to a specified concentration or less, and the filtration membrane group 22 when the filtration is performed. And a membrane cleaning pipe 60 for supplying hypochlorine for powerful cleaning to the group.

請求項３に記載の余剰汚泥減量化設備１は、請求項１および２に記載の発明において、濾過膜群２２を、ゼノン膜，浸漬型平膜、エレメント型セラミック膜、および浸漬型セラミック膜中の少なくともいずれか１つを含む膜で構成してなるものである。   A surplus sludge reduction facility 1 according to claim 3 is the invention according to claims 1 and 2, wherein the filtration membrane group 22 is arranged in a Zenon membrane, an immersion flat membrane, an element type ceramic membrane, and an immersion type ceramic membrane. It is comprised by the film | membrane containing at least any one of these.

請求項１に記載の余剰汚泥減量化設備１は、余剰汚泥Ｓをオゾンなどの働きによって効率的に減量化することができると共に、濾過膜群２２などの働きによって、その後の処理水Ｗをより清浄化して放流することができる。   The surplus sludge reduction facility 1 according to claim 1 can efficiently reduce the surplus sludge S by the action of ozone and the like, and further treat the treated water W by the action of the filtration membrane group 22 and the like. It can be cleaned and released.

すなわち、余剰汚泥Ｓが供給された消化分解槽２１に、オゾン発生機３０によって発生させたオゾンを供給するので、余剰汚泥Ｓは当該オゾンに接触することによって酸化して生物分解し易い有機物へ変化し、さらに、接触を続けることによって炭酸ガスと水（処理水Ｗ）に分解される。従って、余剰汚泥Ｓは効率的に減量化される。   That is, since the ozone generated by the ozone generator 30 is supplied to the digestion / decomposition tank 21 to which the excess sludge S is supplied, the excess sludge S is oxidized to come into an organic substance that is easily biodegraded by contact with the ozone. Furthermore, by continuing the contact, it is decomposed into carbon dioxide gas and water (treated water W). Therefore, the excess sludge S is efficiently reduced.

また、処理水Ｗは、濾過膜群を通過して濾過された後、殺菌処理処理装置で殺菌処理され、放流されるので、より浄化した処理水Ｗを放流することができる。   Moreover, since the treated water W is filtered through the filtration membrane group and then sterilized by the sterilization treatment apparatus and discharged, the purified treated water W can be discharged.

なお、汚泥貯留槽１０では、散気装置１１によって空気を供給し、余剰汚泥Ｓを曝気するので当該余剰汚泥Ｓを構成する汚泥微生物を活性化させ、消化分解槽２１での効率的な減量化に寄与する。また、汚泥貯留槽１０に設けたタイマー１３によって作動する送入ポンプ１２によって、余剰汚泥Ｓを連続的（定期的）に消化分解槽２１に供給するので、余剰汚泥Ｓの減量化を、効率良く行うことができる。   In the sludge storage tank 10, air is supplied by the air diffuser 11 and the surplus sludge S is aerated, so that sludge microorganisms constituting the surplus sludge S are activated and efficient reduction in the digestion / decomposition tank 21 is achieved. Contribute to. Moreover, since the surplus sludge S is continuously (periodically) supplied to the digestion / decomposition tank 21 by the infeed pump 12 that is operated by the timer 13 provided in the sludge storage tank 10, the amount of surplus sludge S can be reduced efficiently. It can be carried out.

なお、消化分解槽２１で溶解しなかった排オゾンは、排オゾン除去装置５０によって規定濃度例えば０．１ｐｐｍ以下に処理されて放出されるので、環境汚染などの問題は発生しない。   In addition, since the exhaust ozone which did not melt | dissolve in the digestive decomposition tank 21 is processed and discharged | emitted by the exhaust ozone removal apparatus 50 by the regular density | concentration, for example, 0.1 ppm or less, problems, such as environmental pollution, do not generate | occur | produce.

また、この発明によると、余剰汚泥Ｓの減量化、ひいてはその全てを消滅させることができるので、従来、余剰汚泥Ｓを処理するために必要であった脱水機、乾燥機、焼却機などの設備を不要とすることができる。さらに、オゾンによって減量化を図るので、高濃度余剰汚泥Ｓの放つ悪臭もなくすことができる。   In addition, according to the present invention, the amount of excess sludge S can be reduced, and eventually all of it can be eliminated. Therefore, facilities such as dehydrators, dryers, incinerators, etc., which have been conventionally required for treating excess sludge S. Can be made unnecessary. Further, since the amount is reduced by ozone, the bad odor emitted by the high concentration excess sludge S can be eliminated.

請求項２に記載の余剰汚泥減量化設備１は、請求項１に記載の発明と同様に、余剰汚泥Ｓを効率的に減量化することができると共に、その後の処理水Ｗをより浄化した状態で放流することができる。   The surplus sludge reduction facility 1 according to claim 2 can efficiently reduce surplus sludge S and further purify the treated water W thereafter, as in the invention according to claim 1. Can be released.

また、この設備は、濾過膜群２２に、強力洗浄用次亜塩素を供給するための膜洗浄管６０を設けているので、超微細気泡装置から上昇するオゾン含有空気の超微細によって洗浄されずに閉塞した当該濾過膜群２２を確実に洗浄することができる。この次亜塩素は、汚泥微生物の細胞の核まで溶かして殺菌する能力を有するので、濾過膜群２２の目詰まりの原因となる汚泥微生物を全て除去することができる。   Moreover, since this equipment is provided with a membrane cleaning pipe 60 for supplying hypochlorite for strong cleaning to the filtration membrane group 22, it is not cleaned by the ultrafineness of the ozone-containing air rising from the ultrafine bubble device. Thus, the filtration membrane group 22 that is blocked can be reliably washed. Since this hypochlorous acid has the ability to dissolve and sterilize the cell nucleus of sludge microorganisms, all the sludge microorganisms that cause clogging of the filtration membrane group 22 can be removed.

請求項３に記載の余剰汚泥減量化設備１は、請求項１および２に記載の発明と同様に、余剰汚泥Ｓを効率的に減量化し、その後の処理水Ｗをより浄化した状態で放流することができる。   The surplus sludge reduction facility 1 according to claim 3, similarly to the inventions according to claims 1 and 2, efficiently reduces the surplus sludge S and discharges the treated water W in a purified state thereafter. be able to.

また、濾過膜群２２を、ゼノン膜，浸漬型平膜、エレメント型セラミック膜、および浸漬型セラミック膜の４つの内少なくとも１つ以上の膜によって構成しているので、濾過能力に優れ、より清浄化した処理水Ｗを放流することができる。   Further, the filtration membrane group 22 is composed of at least one of the four membranes of Zenon membrane, submerged flat membrane, element type ceramic membrane, and submerged ceramic membrane. The treated water W can be discharged.

本発明に係る余剰汚泥減量化設備１の実施形態を、図１および図２に示す。これは、生活排水や産業排水を排水処理設備で処理した際に発生する高濃度の余剰汚泥Ｓを連続的に処理する設備であり、汚泥貯留槽１０、消化分解装置２０、オゾン発生機３０、処理水貯留槽４０、排オゾン除去装置５０、および膜洗浄管６０を備えている。   Embodiments of the excess sludge reduction facility 1 according to the present invention are shown in FIGS. 1 and 2. This is a facility that continuously treats high-concentration surplus sludge S that is generated when domestic wastewater and industrial wastewater are treated with a wastewater treatment facility. The sludge storage tank 10, the digestion / decomposition device 20, the ozone generator 30, A treated water storage tank 40, a waste ozone removing device 50, and a membrane cleaning pipe 60 are provided.

汚泥貯留槽１０は、搬送されてきた余剰汚泥Ｓを投入Ｙとして一時的に貯留するもので、内部に、散気装置１１、およびタイマー１３で作動する送入ポンプ１２を備えている。この散気装置１１には、送風機１４から空気が供給される。   The sludge storage tank 10 temporarily stores surplus sludge S that has been transported as input Y, and includes an aeration device 11 and a feed pump 12 that is operated by a timer 13 inside. Air is supplied from the blower 14 to the air diffuser 11.

消化分解装置２０は、汚泥貯留槽１０の余剰汚泥Ｓが、タイマー１３によって作動する送入ポンプ１２により自動的（定期的）に供給される。また、その内部である消化分解槽２１に、濾過膜群２２と該濾過膜群２２に上昇気泡の一部が接触する超微細気泡装置２３を備えている。濾過膜群２２は、直列的に通過するゼノン膜，浸漬型平膜、エレメント型セラミック膜、および浸漬型セラミック膜の三種類の濾過膜の内の少なくとも１つの膜で構成されている。   In the digestion / decomposition apparatus 20, the excess sludge S in the sludge storage tank 10 is automatically (periodically) supplied by the feed pump 12 that is operated by the timer 13. Further, the digestion / decomposition tank 21 inside thereof is provided with a filtration membrane group 22 and an ultrafine bubble device 23 in which a part of the rising bubbles contacts the filtration membrane group 22. The filtration membrane group 22 is composed of at least one of three types of filtration membranes: a Zenon membrane, an immersion flat membrane, an element ceramic membrane, and an immersion ceramic membrane that pass in series.

オゾン発生機３０は、高濃度のオゾンを発生させ、消化分解槽２１に供給する。なお、このオゾンは、ブロワー３２から供給される空気と混合され、混合管３１を通して超微細気泡装置２３に供給され、そこで超微細な気泡とされて消化分解槽２１の下位に供給され、余剰汚泥Ｓに効果的に接触する。   The ozone generator 30 generates high-concentration ozone and supplies it to the digestion / decomposition tank 21. This ozone is mixed with the air supplied from the blower 32 and supplied to the ultrafine bubble device 23 through the mixing tube 31, where it is converted into ultrafine bubbles and supplied to the lower part of the digestion / decomposition tank 21, and surplus sludge. Effective contact with S.

処理水貯留槽４０は、濾過膜群２２を通過してＢＯＤ５ｍｇ／リットル以下の清浄化された処理水Ｗを、内部に設けた殺菌処理装置４１によって殺菌した後、一時的に貯留し、その後、処理水Ｗとして放流するものである。   The treated water storage tank 40 passes through the filtration membrane group 22 and sterilizes the purified treated water W having a BOD of 5 mg / liter or less by the sterilization treatment device 41 provided therein, and then temporarily stores the treated water W, The treated water W is discharged.

排オゾン除去装置５０は、消化分解槽２１で溶解しなかった排オゾン（２０００〜３０００ｐｐｍ）を、労働衛生基準で定められた濃度である規定値即ち０．１ｐｐｍ以下に処理して放出する。また、膜洗浄管６０は、濾過膜群２２閉塞時に該濾過膜群２２に次亜塩素を供給して、当該濾過膜群２２を洗浄するものである。   The exhaust ozone removal device 50 treats and releases exhaust ozone (2000 to 3000 ppm) that has not been dissolved in the digestion / decomposition tank 21 to a specified value that is a concentration defined by the occupational health standards, that is, 0.1 ppm or less. The membrane cleaning tube 60 supplies hypochlorous acid to the filtration membrane group 22 when the filtration membrane group 22 is closed to wash the filtration membrane group 22.

本実施形態に係る余剰汚泥減量化設備１の作用について説明する。まず、汚泥貯留槽１０に貯留された余剰汚泥Ｓを、タイマー１３で定期的に作動する送入ポンプ１２によって消化分解装置２０の消化分解槽２１に供給する。なお、汚泥貯留槽１０では、送風機１４から散気装置１１に空気を送り、当該空気を散気して余剰汚泥Ｓに接触させ、その活性化を図る。   The effect | action of the excess sludge reduction | decrease equipment 1 which concerns on this embodiment is demonstrated. First, surplus sludge S stored in the sludge storage tank 10 is supplied to the digestion / decomposition tank 21 of the digestion / decomposition apparatus 20 by the feed pump 12 that is periodically operated by the timer 13. In the sludge storage tank 10, air is sent from the blower 14 to the air diffuser 11, and the air is diffused and brought into contact with the excess sludge S to activate the air.

次に、オゾン発生機３０で発生させたオゾンと、ブロワー３２からの空気を混合管３１で混合させた後、消化分解槽２１に設けた超微細気泡装置２３に供給し、そこで超微細の気泡を発生させ、消化分解槽２１に散気して余剰汚泥Ｓに接触させる。これにより、余剰汚泥Ｓはオゾンと接触して有機物へと変化し、さらにオゾンと長く接触することにより炭酸ガスと水（処理水Ｗ）に分解される。従って、余剰汚泥Ｓは効率的に減量化される。なお、ブロワー３２からの空気は、空気移送管３３を通して供給し、当該空気移送管３３には、余剰の空気を放出するための空気逃がし管３４を設けている。   Next, the ozone generated by the ozone generator 30 and the air from the blower 32 are mixed in the mixing tube 31 and then supplied to the ultrafine bubble device 23 provided in the digestion / decomposition tank 21 where the ultrafine bubbles are supplied. Is generated and diffused into the digestion / decomposition tank 21 to contact the excess sludge S. Thereby, surplus sludge S changes to organic matter in contact with ozone, and further decomposes into carbon dioxide gas and water (treated water W) by coming into contact with ozone for a long time. Therefore, the excess sludge S is efficiently reduced. Note that air from the blower 32 is supplied through an air transfer pipe 33, and the air transfer pipe 33 is provided with an air escape pipe 34 for discharging excess air.

その後、処理水Ｗは、濾過膜群２２で濾過された後、殺菌処理装置４１で殺菌処理され処理水貯留槽４０に一時的に貯留され、その後、放流される。この処理水Ｗは、濾過群で濾過され、さらに殺菌処理装置４１で殺菌処理されているので、清浄である。なお、処理水Ｗは、消化分解槽２１内における水頭圧Ｈによって濾過膜群２２を通過し、殺菌処理装置４１に送られる。   Thereafter, the treated water W is filtered by the filtration membrane group 22, sterilized by the sterilization treatment device 41, temporarily stored in the treated water storage tank 40, and then discharged. Since this treated water W is filtered by the filtration group and further sterilized by the sterilizing apparatus 41, it is clean. The treated water W passes through the filtration membrane group 22 by the water head pressure H in the digestion / decomposition tank 21 and is sent to the sterilization treatment apparatus 41.

また、消化分解槽２１に残存したオゾン（排オゾン）は、排オゾン移送管５１を通って排オゾン除去装置５０に達し、そこで０．１ｐｐｍ以下の濃度に処理され、排出される。この排出は、圧送ファン５２、ダンパー５３、排オゾン排出管５４によって行われる。なお、排オゾン除去装置５０には、高濃度オゾン分解触媒材５５を設けている。   The ozone (exhaust ozone) remaining in the digestion / decomposition tank 21 reaches the exhaust ozone removal device 50 through the exhaust ozone transfer pipe 51, where it is processed to a concentration of 0.1 ppm or less and discharged. This discharge is performed by the pressure feeding fan 52, the damper 53, and the exhaust ozone discharge pipe. The exhaust ozone removal device 50 is provided with a high concentration ozone decomposition catalyst material 55.

また、本実施形態では、濾過膜群２２の閉塞時に該濾過膜群を浄化するために、次亜塩素を供給するための膜洗浄管６０を設けている。この膜洗浄管６０は、処理水Ｗを殺菌処理装置４１に供給するための処理水管４２に連通させている。処理水管４２にはタイマー１３によって定期的に作動する電磁弁４３を設けており、この電磁弁４３の開閉により処理水Ｗを８分間流した後、２分間停止し、その間、超微細気泡装置２３から供給される上昇気泡により濾過膜群２２を洗浄する。それでもなお且つ濾過膜群２２の閉塞が起きたときには、電磁弁４３を閉じ、膜洗浄管６０から次亜塩素を供給して、濾過膜群２２を洗浄する。   In the present embodiment, a membrane cleaning pipe 60 for supplying hypochlorous acid is provided to purify the filtration membrane group when the filtration membrane group 22 is closed. The membrane cleaning pipe 60 communicates with the treated water pipe 42 for supplying the treated water W to the sterilization treatment apparatus 41. The treated water pipe 42 is provided with an electromagnetic valve 43 that is periodically operated by the timer 13, and the treated water W is allowed to flow for 8 minutes by opening and closing the electromagnetic valve 43 and then stopped for 2 minutes. The filtration membrane group 22 is washed by the rising bubbles supplied from. Nevertheless, when the filtration membrane group 22 is blocked, the electromagnetic valve 43 is closed, and hypochlorous acid is supplied from the membrane washing tube 60 to wash the filtration membrane group 22.

こうした構成の余剰汚泥減量化設備１は、余剰汚泥Ｓをオゾンなどの働きによって効率的に減量化することができる。また、濾過膜群２２などの働きによって、その後の処理水Ｗをより清浄化して放流することができる。   The surplus sludge reduction facility 1 having such a configuration can efficiently reduce the excess sludge S by the action of ozone or the like. Further, the treated water W can be further purified and discharged by the action of the filtration membrane group 22 and the like.

なお、本実施形態では、消化分解装置２０と汚泥貯留槽１０との間に逆送管２５を設け、消化分解槽２１でオーバーフローした余剰汚泥Ｓを、汚泥貯留槽１０に戻している。また、消化分解装置２０に点検キャップ２４を設けた点検口を形成し、余剰汚泥Ｓの濃度を測定するようにしている。   In the present embodiment, a reverse feed pipe 25 is provided between the digestion / decomposition device 20 and the sludge storage tank 10, and the excess sludge S overflowed in the digestion / decomposition tank 21 is returned to the sludge storage tank 10. Further, an inspection port provided with an inspection cap 24 is formed in the digestion / decomposition apparatus 20 so that the concentration of excess sludge S is measured.

なお、図３に示す如く、消化分解槽２１内の水頭圧Ｈにより吐出した処理水を、送出ポンプ４４で更に加圧して排水するようにすると共に、タイマー１３により送出ポンプ４４と送入ポンプ１２とを交互に作動するようにしてもよい。６１，６２は開閉弁及び開閉バルブで、それぞれ処理水管４２中の送出ポンプ４４より上流側と、膜洗浄管６０中に配置されている。   As shown in FIG. 3, the treated water discharged by the head pressure H in the digestion / decomposition tank 21 is further pressurized and discharged by the delivery pump 44, and the delivery pump 44 and the delivery pump 12 are discharged by the timer 13. And may be operated alternately. 61 and 62 are on-off valves and on-off valves, which are arranged upstream of the delivery pump 44 in the treated water pipe 42 and in the membrane cleaning pipe 60, respectively.

本発明に係る余剰汚泥減量化設備の実施形態を示す一部断面側面構成図である。It is a partial section side view lineblock diagram showing an embodiment of surplus sludge reduction equipment concerning the present invention. 図１に示す余剰汚泥減量化設備の一部断面平面構成図である。It is a partial cross section plane block diagram of the excess sludge reduction | decrease installation shown in FIG. 図２の一部変形図である。FIG. 3 is a partially modified view of FIG. 2.

符号の説明Explanation of symbols

１ 余剰汚泥減量化設備
１０ 汚泥貯留槽
１１ 散気装置
１２ 送入ポンプ
１３ タイマー
１４ 送風機
２０ 消化分解装置
２１ 消化分解槽
２２ 濾過膜群
２３ 超微細気泡装置
２４ 点検キャップ
２５ 逆送管
３０ オゾン発生機
３１ 混合管
３２ ブロワー
３３ 空気移送管
３４ 空気逃がし管
４０ 処理水貯留槽
４１ 殺菌処理装置
４２ 処理水管
４３ 電磁弁
４４ 送出ポンプ
５０ 排オゾン除去装置
５１ 排オゾン移送管
５２ 圧送ファン
５３ ダンパー
５４ 排オゾン排出管
５５ 高濃度オゾン分解触媒材
６０ 膜洗浄管
６１ 開閉弁
６２ 開閉バルブ
Ｈ 水頭圧
Ｓ 余剰汚泥
Ｖ バルブ
Ｗ 処理水
Ｙ 投入 DESCRIPTION OF SYMBOLS 1 Surplus sludge reduction | decrease equipment 10 Sludge storage tank 11 Aeration apparatus 12 Inflow pump 13 Timer 14 Blower 20 Digestion decomposition apparatus 21 Digestion decomposition tank 22 Filtration membrane group 23 Ultrafine bubble apparatus 24 Inspection cap 25 Reverse feed pipe 30 Ozone generator 31 Mixing pipe 32 Blower 33 Air transfer pipe 34 Air escape pipe 40 Treated water storage tank 41 Sterilization treatment device 42 Treated water pipe 43 Solenoid valve 44 Delivery pump 50 Waste ozone removal device 51 Waste ozone transfer pipe 52 Pumping fan 53 Damper 54 Waste ozone discharge Pipe 55 High-concentration ozone decomposition catalyst material 60 Membrane cleaning pipe 61 On-off valve 62 On-off valve H Water head pressure S Excess sludge V Valve W Treated water Y Input

Claims (3)

生活排水や産業排水を排水処理設備で処理した際に発生する余剰汚泥（Ｓ）を連続的に処理する設備であって、少なくとも、余剰汚泥を一時的に貯留し，内部に，散気装置（１１）およびタイマー（１３）で作動する送入ポンプ（１２）を備える汚泥貯留槽（１０）と、前記汚泥貯留槽の余剰汚泥が，前記送入ポンプによって自動的に供給され，内部である消化分解槽（２１）に，濾過膜群（２２）と上昇気泡の一部が該濾過膜群に接触する超微細気泡装置（２３）を備えた消化分解装置（２０）と、前記消化分解装置の消化分解槽にオゾンを，ブロワー（３２）から供給される空気と共に供給するオゾン発生機（３０）と、前記濾過膜群を通過した処理水（Ｗ）を，内部に設けた殺菌処理装置（４１）を通して一時的に貯留した後，放流する処理水貯留槽（４０）と、前記消化分解槽で溶解しなかった排オゾンを，規定濃度以下に処理して放出する排オゾン除去装置（５０）と、を備えてなる余剰汚泥減量化設備。   A facility for continuously treating surplus sludge (S) generated when wastewater and industrial wastewater are treated with wastewater treatment equipment, and at least temporarily store surplus sludge, and a diffuser ( 11) and a sludge storage tank (10) provided with a feed pump (12) operated by a timer (13), and excess sludge in the sludge storage tank is automatically supplied by the feed pump and digested inside A digestion / decomposition apparatus (20) provided with an ultrafine bubble device (23) in which a filtration membrane group (22) and a part of the rising bubbles are in contact with the filtration membrane group in the decomposition tank (21); An ozone generator (30) that supplies ozone to the digestion / decomposition tank together with the air supplied from the blower (32), and a sterilization treatment device (41) provided internally with treated water (W) that has passed through the filtration membrane group. ) To temporarily store and then release Treated water storage tank (40), the digested decomposition exhaust ozone undissolved in tanks, normal concentration processes below discharge ozone removing device to be released (50), excess sludge volume reduction facility consisting comprise. 生活排水や産業排水を排水処理設備で処理した際に発生する余剰汚泥（Ｓ）を連続的に処理する設備であって、少なくとも、余剰汚泥を一時的に貯留し，内部に，散気装置（１１）およびタイマー（１３）で作動する送入ポンプ（１２）を備える汚泥貯留槽（１０）と、前記汚泥貯留槽の余剰汚泥が，前記送入ポンプによって自動的に供給され，内部である消化分解槽（２１）に，濾過膜群（２２）と上昇気泡の一部が該濾過膜群に接触する超微細気泡装置（２３）を備えた消化分解装置（２０）と、前記消化分解装置の消化分解槽にオゾンを，ブロワー（３２）から供給される空気と共に供給するオゾン発生機（３０）と、前記濾過膜群を通過した処理水（Ｗ）を，内部に設けた殺菌処理装置（４１）を通して一時的に貯留した後，放流する処理水貯留槽（４０）と、前記消化分解槽で溶解しなかった排オゾンを，規定濃度以下に処理して放出する排オゾン除去装置（５０）と、前記濾過膜群閉塞時に、該濾過膜群に強力洗浄用次亜塩素を供給する膜洗浄管（６０）と、を備えてなる余剰汚泥減量化設備。 A facility for continuously treating surplus sludge (S) generated when wastewater and industrial wastewater are treated with wastewater treatment equipment, and at least temporarily store surplus sludge, and a diffuser ( 11) and a sludge storage tank (10) provided with a feed pump (12) operated by a timer (13), and excess sludge in the sludge storage tank is automatically supplied by the feed pump and digested inside A digestion / decomposition apparatus (20) provided with an ultrafine bubble device (23) in which a filtration membrane group (22) and a part of the rising bubbles are in contact with the filtration membrane group in the decomposition tank (21), An ozone generator (30) for supplying ozone to the digestion / decomposition tank together with the air supplied from the blower (32), and a sterilization treatment apparatus (41) provided internally with treated water (W) that has passed through the filtration membrane group. ) Through temporary storage and then release A treated water storage tank (40), a waste ozone removal apparatus (50) that discharges exhaust ozone that has not been dissolved in the digestion / decomposition tank to a specified concentration or less, and the filtration membrane when the filtration membrane group is closed A membrane cleaning pipe ( 60 ) for supplying hypochlorine for powerful cleaning to the group, and an excess sludge reduction facility. 濾過膜群（２２）を、ゼノン膜，浸漬型平膜、エレメント型セラミック膜、および浸漬型セラミック膜中の少なくともいずれか１つを含む膜で構成してなる請求項１または２に記載の余剰汚泥減量化設備

The surplus according to claim 1 or 2, wherein the filtration membrane group ( 22 ) is constituted by a membrane containing at least one of a Zenon membrane, a submerged flat membrane, an element type ceramic membrane, and a submerged ceramic membrane. Sludge reduction equipment

JP2005309614A 2005-10-25 2005-10-25 Excess sludge reduction equipment Expired - Fee Related JP4575270B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005309614A JP4575270B2 (en) 2005-10-25 2005-10-25 Excess sludge reduction equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005309614A JP4575270B2 (en) 2005-10-25 2005-10-25 Excess sludge reduction equipment

Publications (3)

Publication Number Publication Date
JP2007117796A JP2007117796A (en) 2007-05-17
JP2007117796A5 JP2007117796A5 (en) 2007-10-25
JP4575270B2 true JP4575270B2 (en) 2010-11-04

Family

ID=38142222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005309614A Expired - Fee Related JP4575270B2 (en) 2005-10-25 2005-10-25 Excess sludge reduction equipment

Country Status (1)

Country Link
JP (1) JP4575270B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5106315B2 (en) * 2008-08-20 2012-12-26 日成プラント株式会社 Excess sludge reduction equipment
JP5183538B2 (en) * 2009-03-19 2013-04-17 日成プラント株式会社 Surplus sludge reduction device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09174098A (en) * 1995-12-28 1997-07-08 Ebara Corp Weight reducing method for organic sludge
JPH11277095A (en) * 1998-03-27 1999-10-12 Kurita Water Ind Ltd Biological treatment of organic waste solution
JP2001062493A (en) * 1999-08-24 2001-03-13 Ishikawajima Harima Heavy Ind Co Ltd Sludge treating tank
JP2002177981A (en) * 2000-12-13 2002-06-25 Sumitomo Heavy Ind Ltd Waste water treatment method and equipment
JP2003275787A (en) * 2002-03-20 2003-09-30 Kurita Water Ind Ltd Biological treatment device
JP2004141865A (en) * 2002-09-30 2004-05-20 Denim:Kk Ozone treatment method of surplus sludge, treatment apparatus for surplus sludge, and sludge-ozone mixer
JP2005254079A (en) * 2004-03-10 2005-09-22 Hitachi Maxell Ltd Ozone oxidation system for sewage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09174098A (en) * 1995-12-28 1997-07-08 Ebara Corp Weight reducing method for organic sludge
JPH11277095A (en) * 1998-03-27 1999-10-12 Kurita Water Ind Ltd Biological treatment of organic waste solution
JP2001062493A (en) * 1999-08-24 2001-03-13 Ishikawajima Harima Heavy Ind Co Ltd Sludge treating tank
JP2002177981A (en) * 2000-12-13 2002-06-25 Sumitomo Heavy Ind Ltd Waste water treatment method and equipment
JP2003275787A (en) * 2002-03-20 2003-09-30 Kurita Water Ind Ltd Biological treatment device
JP2004141865A (en) * 2002-09-30 2004-05-20 Denim:Kk Ozone treatment method of surplus sludge, treatment apparatus for surplus sludge, and sludge-ozone mixer
JP2005254079A (en) * 2004-03-10 2005-09-22 Hitachi Maxell Ltd Ozone oxidation system for sewage

Also Published As

Publication number Publication date
JP2007117796A (en) 2007-05-17

Similar Documents

Publication Publication Date Title
EP2217534B1 (en) Water treatment apparatus
KR100864806B1 (en) Advanced watertreatment system which maximizes treatment efficiency
JP3440313B2 (en) Method and apparatus for treating contaminated water
WO1999033552A1 (en) Vapor/liquid mixer and polluted water purification apparatus using the mixer
KR101858028B1 (en) Rapid complex water treatment system
KR102054625B1 (en) Waste water treatment apparatus
KR20090107468A (en) A treatment apparatus of bankfiltered water by use of oxidation basin and bio activated carbon filter
KR101062388B1 (en) Water system of toilet
JP4787814B2 (en) Organic wastewater purification method and apparatus
JP4575270B2 (en) Excess sludge reduction equipment
JP4671888B2 (en) Sewage treatment equipment
JP2009082784A (en) Equipment for volume-reducing waste sludge
KR200407311Y1 (en) Dirty Water Purification Apparatus By Using Circulation Method
JP5106315B2 (en) Excess sludge reduction equipment
JP4144394B2 (en) Membrane cleaning device for membrane filter
KR100430071B1 (en) Facility supplying extinguish water and living water by recycling waste water
JP2006035138A (en) Activated sludge processing equipment
JP3547573B2 (en) Water treatment method
JP2007117796A5 (en)
JPH11207393A (en) Treatment of organic sewage
KR102473760B1 (en) Deodorization apparatus using wet scrubber
JP3556515B2 (en) Wastewater treatment method using ozone and hydrogen peroxide
JP2007000781A (en) Waste water treatment method and device
RU38337U1 (en) CONTACT COLUMN FOR SEWAGE TREATMENT
KR200241576Y1 (en) Recycling treatment device of sewage, dirty and waste water

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070620

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20070910

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20081121

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100525

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

R155 Notification before disposition of declining of application

Free format text: JAPANESE INTERMEDIATE CODE: R155

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100819

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130827

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees