JPH04104895A - Biological treating device for organic sewage - Google Patents
Biological treating device for organic sewageInfo
- Publication number
- JPH04104895A JPH04104895A JP2222393A JP22239390A JPH04104895A JP H04104895 A JPH04104895 A JP H04104895A JP 2222393 A JP2222393 A JP 2222393A JP 22239390 A JP22239390 A JP 22239390A JP H04104895 A JPH04104895 A JP H04104895A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- ultrafiltration
- activated sludge
- biological treatment
- membrane
- 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
- 239000010865 sewage Substances 0.000 title description 5
- 239000012528 membrane Substances 0.000 claims abstract description 62
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 49
- 239000010802 sludge Substances 0.000 claims abstract description 42
- 239000002002 slurry Substances 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005273 aeration Methods 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 5
- 239000002351 wastewater Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005406 washing Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000012459 cleaning agent Substances 0.000 abstract description 3
- 239000013505 freshwater Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 abstract description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 239000012510 hollow fiber Substances 0.000 description 11
- 239000000919 ceramic Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は有機性汚水を活性汚泥処理し、活性汚泥スラリ
ーを限外濾過膜で固液分離する生物処理装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a biological treatment device that performs activated sludge treatment on organic wastewater and separates the activated sludge slurry into solid and liquid using an ultrafiltration membrane.
従来、活性汚泥法のエアレーションタンク（Ａｅｒａｔ
ｉｏｎ Ｔａｎｋ） 内にセラミックス膜又は中空系膜
モジュールを直接曝気槽に浸漬し、曝気空気の乱流によ
って、中空糸膜モジユール表面に剪断流を与えつつ、活
性汚泥を処理水と固形分に膜分離する装置が公知である
。Conventionally, activated sludge method aeration tanks (Aerat
ion tank), the ceramic membrane or hollow membrane module is directly immersed in the aeration tank, and the activated sludge is membrane-separated into treated water and solids while applying a shear flow to the surface of the hollow fiber membrane module using the turbulent flow of aeration air. Devices for doing so are known.
しかし、本発す者がこの従来装置を追試したところ曝気
空気によって引き起こされる乱流だけでは、膜汚染を充
分防止することができず、次第にｆｌｕｘ （膜透過流
束）が低下してしまうことが肋らかとなった。However, when the author of the present invention tried this conventional device, it was found that the turbulent flow caused by the aeration air alone was not sufficient to prevent membrane contamination, and the flux (membrane permeation flux) gradually decreased. It became clear.
膜汚染を効果的に防止するためには、定期的にＮａＣｌ
２（次亜塩素酸ソーダ）等の薬剤により、中空糸膜又は
セラミックス膜の表面を洗浄する必要があることが認め
られた。To effectively prevent membrane contamination, it is necessary to periodically
It was recognized that it was necessary to clean the surface of the hollow fiber membrane or ceramic membrane with a chemical such as No. 2 (sodium hypochlorite).
しかし、従来装置は膜モジュールを直接、曝気槽に浸漬
しているので、薬品洗浄を行うためには、膜モジュール
を曝気槽から取り出さなければならない。なぜなら、も
し、膜モジュールを曝気槽に浸漬させたまま薬剤を添加
してその洗浄を行うと洗浄薬剤が活住汚泥により分解さ
れたり、処理水の水質および生物処理槽の微生物の生育
等の生物処理条件に悪影響を与えたりするからである。However, in the conventional apparatus, the membrane module is directly immersed in the aeration tank, so the membrane module must be taken out from the aeration tank in order to perform chemical cleaning. This is because if you add chemicals to the membrane module while it is immersed in the aeration tank and then clean it, the cleaning chemicals may be decomposed by active sludge, and the quality of the treated water and the growth of microorganisms in the biological treatment tank may be affected. This is because it may adversely affect the processing conditions.
従って、膜モジュールを槽から取り出す作業を必要とし
、かつ別途これを薬剤溶液に浸漬しなければならず、維
持管理性が非常に悪く、実装置規模のケースではこの様
な従来装置は実用不能であった。Therefore, it is necessary to take out the membrane module from the tank, and it must also be separately immersed in a chemical solution, making maintenance and management very difficult, making such conventional equipment impractical in the case of actual equipment scale. there were.
本発明は、従来装置の欠点を解決することを課題とする
もので、具体的には中空糸又はセラミックス膜限外濾過
膜モジュールを曝気槽から取り出さず、簡単かつ効果的
に薬品洗浄が行えるようにした新規生物処理装置を提供
することを課題とするものである。The purpose of the present invention is to solve the drawbacks of conventional devices. Specifically, it is possible to easily and effectively perform chemical cleaning of hollow fiber or ceramic membrane ultrafiltration membrane modules without taking them out of the aeration tank. The purpose of this project is to provide a novel biological treatment device that has the following characteristics.
本発明は、限外濾過膜が浸漬された限外濾過槽を有する
有機性汚水の生物処理装置において、少なくとも限外濾
過槽に空気等を供給するための散気装置、該限外濾過膜
の洗浄時に該限外濾過槽内の活性汚泥スラリーを生物処
理槽または任意の槽に移送する装置、限外濾過槽に薬剤
および洗浄水を添加するための装置、および該限外濾過
膜の洗浄廃液を該生物処理装置外に排出する装置を設け
たことを特徴とする有機性汚水の生物処理装置であり、
これにより上記課題を解決できる。The present invention provides a biological treatment system for organic sewage having an ultrafiltration tank in which an ultrafiltration membrane is immersed. A device for transferring the activated sludge slurry in the ultrafiltration tank to a biological treatment tank or any tank during cleaning, a device for adding chemicals and washing water to the ultrafiltration tank, and a washing waste liquid for the ultrafiltration membrane. A biological treatment device for organic wastewater, characterized in that it is equipped with a device for discharging the organic wastewater to the outside of the biological treatment device,
This makes it possible to solve the above problem.
本発明は、生物処理装置内に限外濾過膜を有する限外濾
過槽を少なくとも含む有機性汚水の生物処理装置に関し
、生物処理された処理水を含む活性汚泥スラリーから処
理水のみを装置系外に排出し、活性汚泥はそのまま限外
濾過槽に残留させると共に生物処理槽内および／または
他の任意の槽に移送残留させて循環使用する方式の装置
であって、生物処理装置の運転継続により、限外濾過膜
の透過特件が膜の目詰まり等により、設計値以下に劣化
し、限外濾過膜の洗浄を行う必要が生じた時、限外濾過
膜を装置系外に取り出して、該限外濾過膜の洗浄を行う
必要のないように構成したことを最大の特徴としている
。The present invention relates to a biological treatment device for organic sewage that includes at least an ultrafiltration tank having an ultrafiltration membrane in the biological treatment device, and in which only treated water is removed from an activated sludge slurry containing biologically treated treated water outside the device system. The activated sludge is left in the ultrafiltration tank, transferred to the biological treatment tank and/or any other tank, and used for circulation. When the permeation characteristics of the ultrafiltration membrane deteriorate below the designed value due to membrane clogging, etc., and it becomes necessary to clean the ultrafiltration membrane, take the ultrafiltration membrane out of the equipment system, The main feature is that the ultrafiltration membrane does not need to be washed.
本発明は、該限外濾過膜に汚泥が付着・滞留することを
防止するため、および膜洗浄時に使用するた綽の散気装
置を該限外濾過槽に設けているため、該限外濾過槽は限
外濾過を行うと共に一種の好気性生物処理槽として機能
する。In order to prevent sludge from adhering to and staying in the ultrafiltration membrane, and because the ultrafiltration tank is provided with a gas diffuser for use in cleaning the membrane, the ultrafiltration The tank performs ultrafiltration and also functions as a type of aerobic biological treatment tank.
従って、本発馴においては該限外濾過槽に導入されて、
好気外生物処理され得る有機性汚水の水質の種類、程度
は特に限定されない。この場合、該有機性汚水は、生物
処理されていないものでも生物処理された活性汚泥を含
むものでもよい。そのため本発明は生物処理槽として限
外濾過槽単独でもよいが、その前段および／または後段
に任意の生物処理槽または生物処理槽以外の公知の処理
槽を包含することができる。そしてこれら処理槽には限
外濾過槽て好気条件で処理された処理水を含む活性汚泥
スラリーおよび／または限外濾過水を導入することがで
きる。これう処理槽が生物処理槽の場合、生物処理条件
は好気的条件でも嫌気的条件でもよい。そして該活性汚
泥スラリーは、それら処理槽と限外濾過槽とを循環利用
することができる。該活性汚泥スラリーの循環利用のだ
約に限外濾過槽と生物処理槽を連絡するたｔの活性汚泥
スラリーの各流出口、流入口を適宜設けることができる
が、その構成は特に制限されず、有機性汚水の処理目的
に応じて適宜選定できる。Therefore, in this invention, it is introduced into the ultrafiltration tank,
The type and degree of water quality of organic wastewater that can be subjected to aerobic biological treatment are not particularly limited. In this case, the organic wastewater may be one that has not been subjected to biological treatment or may contain activated sludge that has been subjected to biological treatment. Therefore, in the present invention, a single ultrafiltration tank may be used as the biological treatment tank, but any biological treatment tank or a known treatment tank other than the biological treatment tank may be included in the preceding and/or subsequent stages. Activated sludge slurry and/or ultrafiltrated water containing treated water treated under aerobic conditions in an ultrafiltration tank can be introduced into these treatment tanks. When this treatment tank is a biological treatment tank, the biological treatment conditions may be aerobic conditions or anaerobic conditions. The activated sludge slurry can be recycled between the treatment tank and the ultrafiltration tank. The outlet and inlet for activated sludge slurry can be provided as appropriate to connect the ultrafiltration tank and the biological treatment tank to the vessel for circulating the activated sludge slurry, but the configuration thereof is not particularly limited. , can be selected as appropriate depending on the purpose of treating organic wastewater.
また、限外濾過膜の洗浄前に限外濾過槽内の活性汚泥ス
ラリーが移送される槽は、生物処理槽てあっても単に貯
留するための槽であってもよいが、装置のコンパクト化
のためには前段の生物処理槽に移送し、これを循環利用
することが好ましい。In addition, the tank to which the activated sludge slurry in the ultrafiltration tank is transferred before cleaning the ultrafiltration membrane may be a biological treatment tank or a tank for simply storing it, but it is also possible to make the device more compact. For this purpose, it is preferable to transfer it to a biological treatment tank in the previous stage and recycle it.
本発明は、特に、限外濾過槽をアンモニア性窒素成分を
硝化する硝化部とし、該限外濾過槽の前段に生物処理槽
を設け、これを該硝化部で硝化されたＮｏＸＮ液をそれ
に流入させ脱窒素する脱窒素部とすることができる。In particular, the present invention includes an ultrafiltration tank as a nitrification unit that nitrifies ammonia nitrogen components, a biological treatment tank provided in the front stage of the ultrafiltration tank, and a NoXN solution nitrified in the nitrification unit flowing into the ultrafiltration tank. It can be used as a denitrification section for denitrification.
本発明において、限外濾過槽、その他生物処理槽で利用
された活性汚泥は、必要に応じて生物処理槽の系外に排
出することができ、そのための排出装置を具備できるこ
とは明らかである。そして、この排出装置は限外濾過膜
の洗浄排水の排出装置と兼用でき、また、洗浄時に限外
濾過槽の活性汚泥を移送する装置の一部として使用でき
る。In the present invention, it is clear that the activated sludge used in the ultrafiltration tank and other biological treatment tanks can be discharged outside the biological treatment tank as necessary, and that a discharge device for this purpose can be provided. This discharge device can also be used as a discharge device for cleaning waste water of the ultrafiltration membrane, and can also be used as part of a device for transferring activated sludge from the ultrafiltration tank during cleaning.
本発明において使用される限外濾過膜としては、特に制
限はな〈従来公知のものが使用できるが、外圧タイプが
好ましく、中空糸膜またはセラミック膜が挙げられる。The ultrafiltration membrane used in the present invention is not particularly limited; any conventionally known ultrafiltration membrane can be used, but an external pressure type is preferred, and examples include hollow fiber membranes and ceramic membranes.
以下、本発明の具体的実施例を説明するが、本発明はこ
れに限定されるものではない。Hereinafter, specific examples of the present invention will be described, but the present invention is not limited thereto.
第１Ｖを参照しながら、以下具体的に説明する。A detailed explanation will be given below with reference to the first V.
１は、原水（下水等の有機性汚水）流入管、２は、活性
汚泥処理槽、３は中空糸膜浸漬槽である。1 is a raw water (organic wastewater such as sewage) inflow pipe, 2 is an activated sludge treatment tank, and 3 is a hollow fiber membrane dipping tank.
４は中空系膜モジュールであり、５は中空系膜透過液を
吸引するポンプである。６は活性汚泥処理槽２への酸素
供給用と中空糸膜モジユール表面へ乱流を与えるための
空気等の散気装置である。4 is a hollow membrane module, and 5 is a pump that sucks the permeate through the hollow membrane. 6 is an air diffuser for supplying oxygen to the activated sludge treatment tank 2 and for providing turbulent flow to the surface of the hollow fiber membrane module.
７は、槽３への活性汚泥スラリー〇流入口で、弁８によ
り開閉できるようになっている。９は槽３からの活性汚
泥の流出口で、弁１０によって開閉可能となっている。7 is an inlet for activated sludge slurry into the tank 3, which can be opened and closed by a valve 8. Reference numeral 9 denotes an outlet for activated sludge from the tank 3, which can be opened and closed by a valve 10.
１１は槽３内の活性汚泥スラリー、洗浄廃液等のドレー
ン管、１２は清水の供給管である。１３はＮａ［ｌＨ，
）Ｉ［１，１、酵素洗剤、Ｎａ［１［］等の膜洗浄剤の
注入管である。また、１４は散気装置６からの酸素供給
だけでは活性汚泥処理のための酸素が不足するケースに
使用する散気装置である。そして、１６は、膜洗浄時に
該浸漬槽内の活性汚泥スラリーを処理槽２に移送するた
めの活性汚泥スラリー移送管である。11 is a drain pipe for activated sludge slurry, washing waste liquid, etc. in the tank 3, and 12 is a supply pipe for fresh water. 13 is Na[lH,
)I[1,1, enzyme detergent, Na[1[], and other membrane cleaner injection tubes. Further, 14 is an aeration device used in cases where oxygen supply from the aeration device 6 alone is insufficient for oxygen for activated sludge treatment. 16 is an activated sludge slurry transfer pipe for transferring the activated sludge slurry in the soaking tank to the treatment tank 2 during membrane cleaning.
次に本発馴の作用原理を述べる。Next, we will explain the working principle of this development.
下水等の有機性汚水１を活性汚泥処理槽２に供給し、生
物処理する。８口りが充分除去された活性汚泥スラリー
は流入ロアを通って中空糸膜モジュール４が設置された
槽３に流入し、中空糸膜によって、８Ｓが完全に膜分離
され、極めて／１″澄な処理水１５となる。Organic wastewater 1 such as sewage is supplied to an activated sludge treatment tank 2 and subjected to biological treatment. The activated sludge slurry from which the 8S has been sufficiently removed passes through the inflow lower and flows into the tank 3 in which the hollow fiber membrane module 4 is installed, where the 8S is completely separated by the hollow fiber membrane and becomes extremely clear. The result is treated water 15.
該膜モジュール４の膜表面にはポンプを具備した散気装
置６からのエアレーンヨンによって強い乱流が与えられ
、膜表面のゲル層の生成を防止する。槽３内の活性汚泥
スラリーは、エアーリフト（ａｉｒ−１ｉｆｔ）作用°
＝より流出口９を経由して、活性汚泥処理槽２にリサイ
クルされる。A strong turbulent flow is applied to the membrane surface of the membrane module 4 by an air lane from an air diffuser 6 equipped with a pump, thereby preventing the formation of a gel layer on the membrane surface. The activated sludge slurry in tank 3 is subjected to air lift (air-1ift)
= is recycled to the activated sludge treatment tank 2 via the outlet 9.
しかして、以上のような態様で長時間運転を継続するに
従って膜透過流束が設計値以下に減少してくるので、こ
の時点で次のような方法で薬品洗浄を実施する。However, as the operation continues for a long time in the above manner, the membrane permeation flux decreases below the designed value, so at this point, chemical cleaning is performed using the following method.
まず、バルブ８．１０を閉じ、ドレーン管〕１を開放し
、弁１７を閉め、弁１８を開きポンプ１９を稼働させて
槽３内の活性汚泥スラリーを活性汚泥スラリー移送管１
６により排出し、活性汚泥処理槽２に移す。次に清水（
生物処理水１５を使用するのがよい。）を供給管１２に
より槽内に満たしＮａＣ１０等の膜洗浄剤を注入管１３
より添加し、散気装置６から定常の処理より強くエア−
リフトし、乱流を発生させ、膜表面に付着した汚染物質
を除去する。First, close the valves 8 and 10, open the drain pipe] 1, close the valve 17, open the valve 18, and operate the pump 19 to transfer the activated sludge slurry in the tank 3 to the activated sludge slurry transfer pipe 1.
6 and transferred to activated sludge treatment tank 2. Next, Shimizu (
It is preferable to use biologically treated water 15. ) is filled into the tank through the supply pipe 12, and a membrane cleaning agent such as NaC10 is injected into the tank through the supply pipe 13.
The air diffuser 6 adds more air than in the steady process.
Lift and generate turbulent flow to remove contaminants attached to the membrane surface.
所定時間（１０分程度で充分である）エアレーンヨンを
続けた後、洗浄を終了する。洗浄廃液をドレーン管１１
より排出する。After continuing the air lane for a predetermined time (about 10 minutes is sufficient), the cleaning is completed. Drain the cleaning waste liquid into the drain pipe 11
Emit more.
・この後、バルブ８．９を開放し、再び定常処理に復帰
する。膜としてセラミンク膜を使用するケースも全く同
様に実施できる。- After this, valve 8.9 is opened and normal processing is resumed. The case where a ceramic membrane is used as the membrane can be carried out in exactly the same manner.
また、中空糸膜モジユール浸漬槽３をアンモニア性窒素
の硝化部とし、生物処理槽２を脱窒素部とすることによ
り合理的な硝化脱窒素を行う二とができる。この場合は
、散気装置１４の運転を中止すること、散気装置６から
の空気が処理槽２へ流入されないようにすることなど、
処理槽３を嫌気性槽とするために適宜必要な設計変更を
すればよい。Further, by using the hollow fiber membrane module dipping tank 3 as a nitrification part for ammonia nitrogen and the biological treatment tank 2 as a denitrification part, rational nitrification and denitrification can be performed. In this case, measures such as stopping the operation of the air diffuser 14 and preventing air from the air diffuser 6 from flowing into the treatment tank 2, etc.
In order to make the treatment tank 3 an anaerobic tank, necessary design changes may be made as appropriate.
■ 限外濾過膜を薬品洗浄する場合に、膜モジュールを
生物処理槽から取り出すという煩雑な作業が不要になり
、維持管理が極めて容易になる。■ When cleaning the ultrafiltration membrane with chemicals, the complicated work of taking out the membrane module from the biological treatment tank is no longer necessary, making maintenance and management extremely easy.
■ 薬品洗浄用水として、限外濾過膜透過水を利用でき
るので、用水の節約が可能である。■Ultrafiltration membrane permeation water can be used as water for cleaning chemicals, making it possible to save water.
■ 限外濾過膜モジュールを浸漬しである槽目体を生物
処理槽として機能させることができるので、生物処理槽
をコンパクト化できる。- Since the tank body in which the ultrafiltration membrane module is immersed can function as a biological treatment tank, the biological treatment tank can be made more compact.
■ 限外濾過膜設置槽を硝化部、生物処理槽を脱窒素部
として構成することにより、合理的な硝化脱窒素を行う
ことができる。- By configuring the ultrafiltration membrane installation tank as the nitrification section and the biological treatment tank as the denitrification section, rational nitrification and denitrification can be performed.
第１図は、本発胡の具体的例を説明するた緬の図である
。
１；原水流入管 ２：活性汚泥処理槽３：中空糸膜
浸漬槽 ４：中空糸膜モジュール５：ポンプ
６：散気装置
７：流入口 ８：弁
９：流出口 １０：弁
１１ニドレーン管 １２：清水の供給管１３：膜洗浄剤
の注入管
１４：散気装置 １５：処理水
１６：活性汚泥スラリー移送管
１７．
１８：弁
１９：ポンプFIG. 1 is a diagram of Burmese to explain a specific example of Honfahu. 1; Raw water inflow pipe 2: Activated sludge treatment tank 3: Hollow fiber membrane soaking tank 4: Hollow fiber membrane module 5: Pump
6: Diffuser 7: Inlet 8: Valve 9: Outlet 10: Valve 11 Nidrain pipe 12: Fresh water supply pipe 13: Membrane cleaning agent injection pipe 14: Diffuser 15: Treated water 16: Activated sludge slurry Transfer pipe 17. 18: Valve 19: Pump
Claims (3)
性汚水の生物処理装置において、少なくとも限外濾過槽
に空気等を供給するための散気装置、該限外濾過膜の洗
浄時に該限外濾過槽内の活性汚泥スラリーを生物処理槽
または任意の槽に移送する装置、限外濾過槽に薬剤およ
び洗浄水を添加するための装置、および該限外濾過膜の
洗浄廃液を該生物処理装置外に排出する装置を設けたこ
とを特徴とする有機性汚水の生物処理装置。(1) In a biological treatment system for organic wastewater having an ultrafiltration tank in which an ultrafiltration membrane is immersed, at least an aeration device for supplying air, etc. to the ultrafiltration tank, and cleaning of the ultrafiltration membrane. At the same time, a device for transferring the activated sludge slurry in the ultrafiltration tank to a biological treatment tank or any tank, a device for adding chemicals and washing water to the ultrafiltration tank, and a device for transferring the cleaning waste liquid of the ultrafiltration membrane. A biological treatment device for organic wastewater, characterized in that a device for discharging outside the biological treatment device is provided.
濾過槽に生物処理槽からの活性汚泥スラリーを流入させ
る流入口および限外濾過した活性汚泥スラリーを該生物
処理槽へ返送する流出口を設けたことを特徴とする請求
項１記載の有機性汚水の生物処理装置。(2) A biological treatment tank is provided upstream of the ultrafiltration tank, and an inlet for allowing the activated sludge slurry from the biological treatment tank to flow into the ultrafiltration tank and for returning the ultrafiltered activated sludge slurry to the biological treatment tank. 2. The biological treatment device for organic wastewater according to claim 1, further comprising an outflow port for discharging organic wastewater.
化部としたことを特徴とする請求項１または２記載の生
物処理装置。(3) The biological treatment apparatus according to claim 1 or 2, wherein the biological treatment tank is a denitrification section, and the ultrafiltration tank is a nitrification section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22239390A JPH0683838B2 (en) | 1990-08-27 | 1990-08-27 | Organic wastewater biological treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22239390A JPH0683838B2 (en) | 1990-08-27 | 1990-08-27 | Organic wastewater biological treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04104895A true JPH04104895A (en) | 1992-04-07 |
| JPH0683838B2 JPH0683838B2 (en) | 1994-10-26 |
Family
ID=16781667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22239390A Expired - Lifetime JPH0683838B2 (en) | 1990-08-27 | 1990-08-27 | Organic wastewater biological treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0683838B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2737202A1 (en) * | 1995-07-25 | 1997-01-31 | Omnium Traitement Valorisa | INSTALLATION FOR THE BIOLOGICAL TREATMENT OF WATERS FOR THEIR POTABILIZATION |
| US5932099A (en) * | 1995-07-25 | 1999-08-03 | Omnium De Traitements Et De Valorisation (Otv) | Installation for biological water treatment for the production of drinkable water |
| KR100344848B1 (en) * | 1998-11-21 | 2002-09-18 | 엘지건설 주식회사 | apparatus for preventing pollution using membrane of immersed type and method for cleaning membrane of immerced type |
| JP2009202146A (en) * | 2007-09-27 | 2009-09-10 | Kobelco Eco-Solutions Co Ltd | Water treatment equipment and method of water treatment |
| JP2009241058A (en) * | 2008-03-14 | 2009-10-22 | Toyo Eng Corp | Method of treating waste water and waste water treatment apparatus |
| JP2011000555A (en) * | 2009-06-19 | 2011-01-06 | Kubota Corp | Wastewater treatment facility and method of rebuilding the same |
| WO2011001803A1 (en) * | 2009-07-03 | 2011-01-06 | 株式会社明電舎 | Filtration membrane module cleaning method and cleaning device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008246424A (en) * | 2007-03-30 | 2008-10-16 | Kuraray Co Ltd | Cleaning method of hollow fiber membrane module and hollow fiber membrane filtering apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02293092A (en) * | 1989-05-02 | 1990-12-04 | Kubota Corp | Sewage treating device |
| JPH0356192A (en) * | 1989-07-21 | 1991-03-11 | Kubota Corp | Washing of membrane module with chemical |
-
1990
- 1990-08-27 JP JP22239390A patent/JPH0683838B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02293092A (en) * | 1989-05-02 | 1990-12-04 | Kubota Corp | Sewage treating device |
| JPH0356192A (en) * | 1989-07-21 | 1991-03-11 | Kubota Corp | Washing of membrane module with chemical |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2737202A1 (en) * | 1995-07-25 | 1997-01-31 | Omnium Traitement Valorisa | INSTALLATION FOR THE BIOLOGICAL TREATMENT OF WATERS FOR THEIR POTABILIZATION |
| WO1997005072A1 (en) * | 1995-07-25 | 1997-02-13 | Otv Omnium De Traitements Et De Valorisation | Biological water treatment plant for producing drinking water |
| US5932099A (en) * | 1995-07-25 | 1999-08-03 | Omnium De Traitements Et De Valorisation (Otv) | Installation for biological water treatment for the production of drinkable water |
| KR100344848B1 (en) * | 1998-11-21 | 2002-09-18 | 엘지건설 주식회사 | apparatus for preventing pollution using membrane of immersed type and method for cleaning membrane of immerced type |
| JP2009202146A (en) * | 2007-09-27 | 2009-09-10 | Kobelco Eco-Solutions Co Ltd | Water treatment equipment and method of water treatment |
| JP2009241058A (en) * | 2008-03-14 | 2009-10-22 | Toyo Eng Corp | Method of treating waste water and waste water treatment apparatus |
| JP2011000555A (en) * | 2009-06-19 | 2011-01-06 | Kubota Corp | Wastewater treatment facility and method of rebuilding the same |
| WO2011001803A1 (en) * | 2009-07-03 | 2011-01-06 | 株式会社明電舎 | Filtration membrane module cleaning method and cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0683838B2 (en) | 1994-10-26 |
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