JP2004306001A - Activated sludge apparatus and activated sludge method keeping excess sludge zero - Google Patents

Activated sludge apparatus and activated sludge method keeping excess sludge zero Download PDF

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JP2004306001A
JP2004306001A JP2003130888A JP2003130888A JP2004306001A JP 2004306001 A JP2004306001 A JP 2004306001A JP 2003130888 A JP2003130888 A JP 2003130888A JP 2003130888 A JP2003130888 A JP 2003130888A JP 2004306001 A JP2004306001 A JP 2004306001A
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activated sludge
coagulation
liquid
tube
separator
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Japanese (ja)
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Kazuji Fukunaga
和二 福永
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

<P>PROBLEM TO BE SOLVED: To provide an activated sludge apparatus keeping excess sludge zero. <P>SOLUTION: A flocculation separation device with high impact performance uses two liquids with different potentials of monovalent metal as a flocculant. The flocculation separation device performs following steps: (1) a flocculation solid of activated sludge by the monovalent metal is broken up at an aeration tank to continue and maintain a biological treatment capacity, (2) a flocculation device with high performance using 1/729 monovalent metal whose flocculation cohesion is trivalent as the flocculant is used for braking up the flocculation solid, (3) the total amount of sludge of the aeration tank is maintained 16-18 times of the BOD total amount Kg/day flown therein per day to continue and maintain the activated sludge at zero. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、活性汚泥施設の沈澱槽が、凝集機能を有しないため、広い水面積を要するので、沈澱槽に代わり水面積規模が1/(20〜100)の凝集機能の高い凝集分離器に代替することに関する。
【0002】
【従来の技術】
微細粒子の活性汚泥を、薬剤を使用せずに処理水と分離するには、巨大な水面積を必要とする沈澱槽以外に、安く分離する手段が無かった。
【0003】
【発明が解決しようとする課題】
従来の投棄を目的とする余剰汚泥(活性汚泥)は、凝集分離に3価の金属を使用しているが、活性汚泥法の循環システムに3価の凝集剤を使用すると、ばっ気槽、沈澱槽内に3価の金属と、活性汚泥との結合力の強い凝集固体が、槽内に堆積し、蓄積することになるから、3価の金属は使用出来ない。
曝気槽→沈殿槽→曝気槽への循環系において、活性汚泥が曝気槽内で解体して汚濁物質を吸着し、生物分解した後、沈澱槽内で活性汚泥は、数時間以上要して、フロックを形成して沈澱し、沈澱汚泥は返送ポンプで曝気槽内に送られて、循環システムが完了している。
【0004】
本発明の活性汚泥を凝集する凝集剤は、ばっ気槽内でフロックが強固な凝集固体を作らないで、解体の容易な1価の金属を凝集剤として使用する必要がある。
1価のNa+,K+等の金属の凝集力は、3価金属(鉄.アルミ)の1/729と小さいが、沈澱槽内の静置ゾーンにおいて、沈降分離が可能な大いさのフロックを、形成させることが出来るので、1価金属の凝集固体は静置沈澱槽内で分離ができて、結合力が小さく、しかも、ばっ気槽内では、活性汚泥の渦巻流で容易に解体するから、理想的な活性汚泥沈澱用の凝集剤であり、1価金属で凝集分離できる凝集装置を必要とした。
【0005】
【課題を解決するための手段】
上記目的を達成するためには、1)凝集装置は活性汚泥液中に溶解している1価の金属を凝集剤として利用すること、2)1価の金属の凝集力は3価の金属の1/729と低いが、凝集固体は曝気槽内の渦流で解体出来ること、3)1価の金属でも、凝集分離できる凝集性能の高い凝集分離器を、開発することが必要になった。
【0006】
凝集管の管軸は、地下水(水道水)の吐出管の中心軸と、合一した2重管として配置する。活性汚泥汚濁液は外側の管に、地下水(水道水)または活性汚泥汚濁液に、地下水(または水道水)を添加した活性汚泥汚濁液(外側の活性汚泥汚濁液と電位の異なる活性汚泥汚濁液)を、中心の管に、それぞれ送液する。地下水の吐出口は、凝集管内に開口し、活性汚泥汚濁液中に地下水(水道水)を供給することになる。電位の異なる2液を、層流の速度で供給すると、接触して下流に流れ、2液の層流接触界面における電位の差に対応して、それぞれの微細粒子間に、激しい衝突により、瞬時に凝集フロックを形成する。凝集フロックは、凝集管底を堆積移送中のフロック群との衝突により、更に巨大フロックへと成長凝集する。
【0007】
凝集装置を最終曝気槽の出口に設置して、凝集分離器をへて処理水は放流し、凝集分離器の底の巨大フロックを分離する凝集分離装置。
凝集分離器の器底の返送汚泥ポンプから返送する活性汚泥は、曝気槽に送られ、巨大フロックの凝集力は弱いから、槽内で容易に解体出来る理想の凝集装置である。
【0008】
上記のように、構成された活性汚泥に適した凝集分離器の凝集分離性能は、凝集機能をもたない沈澱槽の数倍以上の15〜16Kg/mの高濃度活性汚泥を、曝気槽内に返送汚泥として供給維持できる。その結果沈澱槽からの微細粒子の流出をほぼ完全にに抑え、曝気槽余剰汚泥の発生をゼロに維持できるから、凝集剤を使用せずに、瞬時に、微細粒子の活性汚泥を薬剤を使用しないで、凝集する本発明の凝集分離器の開発により、1)余剰汚泥を発生させない高濃度活性汚泥法と、2)a)巨大な沈澱槽を必要としない活性汚泥の凝集分離装置、2)b)凝集薬剤を必要としない、活性汚泥の凝集分離装置とが、同時に開発されたことになる。
活性汚泥装置が開発されて約100年をへて、人間が活性汚泥装置を管理する方法から微生物に管理を任せ、そのうえ余剰汚泥が発生しない活性汚泥(凝集分離)装置になった。
【0009】
活性汚泥法の曝気槽数は槽水面下で連通する2槽以上、望ましは3槽以上とし、曝気槽の最終槽出口に沈澱槽を代へて本発明の凝集管分離器を設ければ、活性汚泥装置の汚泥濃度が向上し、余剰汚泥を発生していた活性汚泥装置が余剰汚泥を発生しない活性汚泥装置に変貌します。
【0010】
従来活性汚泥装置に沈澱槽が必ず必要であったその理由は、増殖した汚泥を沈澱、濾過工程に必要とする強固なフロックを形成する3価の鉄、アルミが凝集分離に適していたからと考える。鉄、アルミの凝集剤で凝集した活性汚泥は、沈澱槽から曝気槽に返送したとしても、活性汚泥が鉄、アルミと強固に凝固したブロックはばっ気槽内で解体せず、活性汚泥としての機能を失ってしまっているから鉄、アルミを凝集剤には使用出来ない。
曝気槽内で返送汚泥が解体するには、1価の金属による凝集装置の開発が必要になる。
【0011】
【発明の実施の形態】
発明の実施形態を実施例に基づき図面を参照して説明する。
活性汚泥の凝集剤は、排水中に溶解する1価の金属Na+,K+‥等を、本発明の凝集装置2の凝集剤に使用する。活性汚泥のフロックは、曝気槽5に返送されて曝気槽内でフロックは、解体して曝気槽に供給された汚濁液1と曝気槽内で接触し、滞留時間内に汚濁液中の汚濁物を生物処理分解する。曝気槽の最終槽出口に到達した活性汚泥汚濁液6は、活性汚泥7と、処理水4とに分離する凝集管分離器3を経て、処理水は放流される。活性汚泥7は、凝集管分離器3の器底の返送汚泥ポンプ8により、曝気槽の第1槽に返送され、活性汚泥法の循環システムを構築することができた。
【0012】
図1において、従来活性汚泥は凝集能力は極めて低いために、巨大な沈澱槽が必要であったが、活性汚泥曝気槽5から処理水4と活性汚泥7とに分離するにあたり、活性汚泥を凝集機能の高い凝集管分離器3に代えて、高汚泥濃度の活性汚泥を曝気槽に返送しようとするものである。
凝集分離器の凝集機能は、被処理液6中の1価の金属により、凝集機能を発揮させるため、被処理液の微細粒子Aと水道水9(地下水、固形物の無い液)または、被処理液(汚濁物の少ない)に水道水(地下水)を添加した液、または、被処理液に電位の異なる液汚濁液を、添加した液の微細粒子Bとを、凝集管内で電位の異なるA,Bの2液を層流接触させて、AとBの微細粒子間の電位の差により衝突させてABフロックを形成させる凝集分離器3である。
【0013】
【発明の効果】
本発明は、以上説明したように構成されているので、以下に記載されたような効果を奏する。
【0014】
本発明の凝集汚泥分離器3を曝気槽最終槽の排出口に接続することにより、従来の巨大な沈澱槽は不要になる。
凝集分離器により、増殖した微細粒子は100%凝集分離するから、曝気槽の汚泥濃度が余剰汚泥を発生しなくなるまで、ばっ気槽内に堆積貯蔵する。その堆積汚泥量は、流入BOD総量Kg/日の16〜20倍量Kgになるまで増殖するが、以後は、完全に増殖はストップし、処理水質は流入負荷が減れば、ばっ気槽内に堆積している汚泥量は、負荷の減量に対応して減少する。
【0015】
該凝集汚泥分離器3は、従来の沈澱槽の1/(50〜200)の容積ですべての微細粒子を100%凝集するから、BOD負荷量Kg/日の変動に注意を払う必要が無く、微生物が水質管理していることを知ることができる。
【0016】
活性汚泥法が開発されて100年を経過してはじめて、微生物を凝集剤を使用せずに、100%凝集分離する本凝集汚泥分離器を開発したことにより、沈澱槽は不要になり、微生物がBOD負荷量Kg/日に対応して、曝気槽内汚泥量を管理しているのであって、当然余剰汚泥を発生しなくするのも、微生物であることを教わった。
【図面の簡単な説明】
【図1】活性汚泥施設に凝集汚泥分離器を設置した図である。
【符号の説明】
1 被処理液
2 凝集装置
3 凝集汚泥分離器
4 処理水
5 活性汚泥曝気槽
6 活性汚泥処理液
7 活性汚泥
8 返送汚泥ポンプ
9 水道水
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a flocculation separator having a high flocculation function with a water area scale of 1 / (20 to 100) instead of the precipitation tank because the sedimentation tank of the activated sludge facility does not have a coagulation function and requires a large water area. About alternatives.
[0002]
[Prior art]
In order to separate the activated sludge of fine particles from the treated water without using a chemical, there was no means for separating the activated sludge at low cost other than a sedimentation tank requiring a huge water area.
[0003]
[Problems to be solved by the invention]
Conventionally, excess sludge for the purpose of dumping (activated sludge) uses a trivalent metal for coagulation and separation. However, if a trivalent flocculant is used in the circulation system of the activated sludge method, an aeration tank and a sediment The coagulated solid having a strong binding force between the trivalent metal and the activated sludge is deposited and accumulated in the tank, so that the trivalent metal cannot be used.
In the circulation system from the aeration tank to the sedimentation tank to the aeration tank, the activated sludge is disassembled in the aeration tank to adsorb pollutants, and biodegraded. Flocs are formed and settled, and the settled sludge is sent into the aeration tank by the return pump, and the circulation system is completed.
[0004]
The flocculant for flocculating activated sludge of the present invention requires the use of a monovalent metal that is easily dismantled as a flocculant without causing floc to form a flocculent solid in an aeration tank.
The cohesion of metals such as monovalent Na + and K + is as small as 1/729 of trivalent metals (iron and aluminum), but in the stationary zone in the sedimentation tank, large flocs capable of sedimentation and separation are formed. Since it can be formed, the coagulated solid of the monovalent metal can be separated in the stationary sedimentation tank, the binding force is small, and in the aeration tank, it is easily disintegrated by the swirling flow of activated sludge. It is an ideal flocculant for activated sludge sedimentation, and requires a coagulation device capable of coagulation and separation with a monovalent metal.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, 1) the coagulation device uses a monovalent metal dissolved in the activated sludge liquid as a coagulant, and 2) the coagulation force of the monovalent metal is equal to that of the trivalent metal. Although it is as low as 1/729, the flocculated solids can be dismantled by the vortex in the aeration tank. 3) It is necessary to develop a flocculation separator with high flocculation performance that can flocculate and separate even monovalent metals.
[0006]
The pipe axis of the coagulation pipe is arranged as a double pipe united with the central axis of the discharge pipe for groundwater (tap water). Activated sludge is the outer sludge, groundwater (tap water) or activated sludge with the addition of groundwater (or tap water) to the activated sludge (the activated sludge having a different potential from the outer activated sludge. ) To each of the central tubes. The outlet of the groundwater is opened in the coagulation pipe, and supplies groundwater (tap water) into the activated sludge contaminated liquid. When two liquids with different potentials are supplied at the speed of laminar flow, they contact and flow downstream, corresponding to the difference in potential at the interface between the two liquids at the laminar flow contact. Form flocculated floc. The flocculated floc grows and flocculates into a huge floc by the collision with the floc group during the sediment transfer of the flocculated tube bottom.
[0007]
An aggregating device that installs an aggregating device at the outlet of the final aeration tank, discharges treated water through the aggregating separator, and separates a huge floc at the bottom of the aggregating separator.
The activated sludge returned from the return sludge pump at the bottom of the flocculation separator is sent to the aeration tank, and since the flocculence of the huge floc is weak, it is an ideal flocculation apparatus that can be easily dismantled in the tank.
[0008]
As described above, the coagulation / separation performance of the coagulation separator suitable for the constituted activated sludge is such that the high-concentration activated sludge of 15 to 16 kg / m 3 , which is several times or more than that of the sedimentation tank having no coagulation function, is supplied to the aeration tank. The sludge can be supplied and maintained inside. As a result, the outflow of fine particles from the sedimentation tank is almost completely suppressed, and the generation of excess sludge in the aeration tank can be maintained at zero. With the development of the coagulation separator of the present invention that does not coagulate, 1) a high-concentration activated sludge method that does not generate excess sludge, 2) a) a coagulation separation device for activated sludge that does not require a huge sedimentation tank, 2) b) A coagulation separation apparatus for activated sludge which does not require a coagulation agent has been developed at the same time.
About 100 years after the development of the activated sludge apparatus, it has become an activated sludge (coagulation / separation) apparatus in which humans manage the activated sludge apparatus instead of the method of managing the activated sludge apparatus and generate no excess sludge.
[0009]
The number of aeration tanks in the activated sludge process is two or more tanks communicating below the tank surface, preferably three or more tanks, and the coagulation tube separator of the present invention is provided at the outlet of the final tank of the aeration tank instead of the sedimentation tank. As a result, the sludge concentration of the activated sludge is improved, and the activated sludge that generated excess sludge is transformed into an activated sludge that does not generate excess sludge.
[0010]
The reason why the activated sludge apparatus has always required a settling tank is considered to be that trivalent iron and aluminum, which form the strong flocs required for the sedimentation and filtration steps of the grown sludge, were suitable for coagulation and separation. Activated sludge flocculated by iron and aluminum coagulant is returned to the aeration tank from the settling tank, but the block in which the activated sludge solidified with iron and aluminum is not dismantled in the aeration tank. Iron and aluminum cannot be used as flocculants because they have lost their function.
In order to disassemble the returned sludge in the aeration tank, it is necessary to develop a coagulation device using a monovalent metal.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described based on examples with reference to the drawings.
As the flocculant of the activated sludge, monovalent metals Na +, K + ‥ dissolved in the wastewater are used as the flocculant of the flocculation apparatus 2 of the present invention. The floc of the activated sludge is returned to the aeration tank 5 where the floc is disassembled and comes into contact with the contaminated liquid 1 supplied to the aeration tank in the aeration tank. Is biodegraded. The activated sludge contaminated liquid 6 that has reached the final tank outlet of the aeration tank passes through the flocculation tube separator 3 that separates the activated sludge 7 and the treated water 4, and the treated water is discharged. The activated sludge 7 was returned to the first tank of the aeration tank by the return sludge pump 8 at the bottom of the flocculation tube separator 3, and a circulation system of the activated sludge method could be constructed.
[0012]
In FIG. 1, the activated sludge conventionally required a huge sedimentation tank because of its extremely low coagulation ability. However, when the activated sludge was separated into treated water 4 and activated sludge 7 from the activated sludge aeration tank 5, the activated sludge was coagulated. Instead of the high-performance coagulation tube separator 3, activated sludge having a high sludge concentration is to be returned to the aeration tank.
The coagulation function of the coagulation separator is performed by using the monovalent metal in the liquid 6 to be treated, so that the fine particles A of the liquid to be treated and the tap water 9 (groundwater, liquid without solid matter) or A liquid obtained by adding tap water (groundwater) to a treatment liquid (less contaminants), or a liquid contaminated liquid having a different electric potential to a liquid to be treated, and fine particles B of the added liquid, and an A having a different electric potential in an aggregation tube. , B are brought into laminar flow contact and collided by the potential difference between the fine particles of A and B to form an AB floc.
[0013]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
[0014]
By connecting the coagulated sludge separator 3 of the present invention to the outlet of the final tank of the aeration tank, a conventional huge sedimentation tank becomes unnecessary.
Since the grown fine particles are 100% coagulated and separated by the coagulation separator, the accumulated fine particles are accumulated and stored in the aeration tank until the sludge concentration in the aeration tank does not generate excess sludge. The accumulated sludge grows until the inflow BOD total amount Kg / day becomes 16 to 20 times the amount of Kg, but after that, the growth stops completely and the treated water quality is reduced into the aeration tank if the inflow load decreases. The amount of accumulated sludge decreases in response to the reduction in load.
[0015]
Since the coagulated sludge separator 3 coagulates 100% of all the fine particles in a volume of 1 / (50 to 200) of the conventional settling tank, it is not necessary to pay attention to the fluctuation of the BOD load Kg / day. We can know that microorganisms control water quality.
[0016]
Only 100 years after the development of the activated sludge process, this coagulated sludge separator was developed to coagulate and separate microorganisms 100% without using a coagulant. It was learned that microorganisms also control the amount of sludge in the aeration tank in accordance with the BOD load Kg / day, and of course eliminate excess sludge.
[Brief description of the drawings]
FIG. 1 is a diagram in which a coagulated sludge separator is installed in an activated sludge facility.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 To-be-processed liquid 2 Agglomeration apparatus 3 Agglomeration sludge separator 4 Treated water 5 Activated sludge aeration tank 6 Activated sludge treatment liquid 7 Activated sludge 8 Return sludge pump 9 Tap water

Claims (6)

活性汚泥処理施設の最終ばっ気槽(5−3)の出口に、被処理液中の1価の金属を凝集剤として、凝集沈澱した活性汚泥7と処理水4とに、分離する凝集分離器2を備えた活性汚泥装置と活性汚泥法。At the outlet of the final aeration tank (5-3) of the activated sludge treatment facility, a coagulation separator for separating coagulated and precipitated activated sludge 7 and treated water 4 using a monovalent metal in the liquid to be treated as a flocculant. Activated sludge equipment and activated sludge method equipped with the two. 1価の金属を凝集剤として活性汚泥を凝集分離する凝集分離器2の反応管を横(縦)に設置した反応管の管軸は、地下水(水道水)の吐出管の管軸と合一した2重管として配置し、活性汚泥処理液または0.1ミクロン以上の微細粒子含有液は外側の管に、該活性汚泥処理液または0.1ミクロン以上の微細粒子含有液と、電位の異なる活性汚泥処理液または活性汚泥処理液以外のすべての液として、該活性汚泥処理液に地下水を添加した混合液を2重管の中心の管に送液して、地下水添加の混合液の吐出口は、凝集分離器の反応管内に開口し、2液を層流接触させて、電位の異なる2液の界面で、巨大な凝集フロックを形成させ、凝集フロックは凝集管の管底に堆積移動させて、凝集分離する活性汚装置と活性汚泥法。The tube axis of the reaction tube in which the reaction tube of the coagulation separator 2 for coagulating and separating activated sludge using a monovalent metal as a coagulant is aligned with the tube axis of the discharge tube of groundwater (tap water). The activated sludge treatment liquid or the liquid containing fine particles of 0.1 micron or more has an electric potential different from that of the activated sludge treatment liquid or the liquid containing fine particles of 0.1 micron or more in the outer tube. As an activated sludge treatment liquid or a liquid other than the activated sludge treatment liquid, a mixed liquid obtained by adding groundwater to the activated sludge treatment liquid is sent to a central pipe of a double pipe, and a discharge port of the mixed liquid added with the groundwater is supplied. Is opened in the reaction tube of the coagulation separator, and the two liquids are brought into laminar flow contact to form a huge coagulation floc at the interface between the two liquids having different potentials, and the coagulation floc is deposited and moved to the bottom of the coagulation tube. Activated sludge and activated sludge method for coagulation and separation. 請求項2の凝集分離器は直管の2重管を横、または縦に設置しても、スパイラル管の2重管を縦に設置しても、各2重管の各中心軸を合一して配置する凝集分離性能の変わらない凝集分離器を備えた活性汚泥装置。In the coagulation separator according to claim 2, the central axis of each double pipe is united even if the double pipe of the straight pipe is installed horizontally or vertically or the double pipe of the spiral pipe is installed vertically. Activated sludge apparatus equipped with a coagulation separator having the same coagulation / separation performance. 2重管の外管に地下水を添加した活性汚泥液(微細粒子を含む汚濁液)、内管に活性汚泥液(微細粒子を含む汚濁液)をそれぞれ供給して、電位の異なる2液を層流接触させて凝集分離する凝集分離器を備えた活性汚泥装置。Activated sludge liquid (polluted liquid containing fine particles) with groundwater added to the outer pipe of the double pipe, and activated sludge liquid (polluted liquid containing fine particles) are supplied to the inner pipe to form two liquids with different potentials. An activated sludge device provided with a flocculation separator for flocculating and separating by flowing contact. 4項の微細粒子凝集装置内で形成した凝集フロック1量に対し、10〜60倍量の汚濁液とを接触衝突することにより、巨大な凝集フロックを形成する凝集分離器を備えた活性汚泥装置。An activated sludge device provided with an aggregating separator for forming a huge agglomerated floc by contacting and colliding 10 to 60 times the amount of a contaminated liquid with respect to one amount of the agglomerated floc formed in the fine particle aggregating device of Item 4. . 0.1〜500ミクロン微細粒子の1500ppm以上の汚濁2液において、電位の異なる2液を、管軸が合一した2重管の外管が、内管より長い2重管の内外に、それぞれに供給し、内管の吐出口が外管内に開口する凝集分離器を備えた活性汚泥装置。Among two contaminated liquids of 1500 ppm or more of fine particles of 0.1 to 500 microns, two liquids having different electric potentials are respectively transferred to the inside and outside of a double tube whose tube axes are united, where the outer tube is longer than the inner tube. Activated sludge apparatus provided with a coagulation separator in which the discharge port of the inner pipe is opened in the outer pipe.
JP2003130888A 2003-04-01 2003-04-01 Activated sludge apparatus and activated sludge method keeping excess sludge zero Pending JP2004306001A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114751512A (en) * 2022-03-24 2022-07-15 重庆天星环保工程有限公司 Microbial carbon sequestration reaction system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114751512A (en) * 2022-03-24 2022-07-15 重庆天星环保工程有限公司 Microbial carbon sequestration reaction system
CN114751512B (en) * 2022-03-24 2023-07-07 重庆天星环保工程有限公司 Microorganism carbon fixation reaction system

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