JP2995208B2 - Wastewater treatment equipment - Google Patents

Wastewater treatment equipment

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Publication number
JP2995208B2
JP2995208B2 JP18077197A JP18077197A JP2995208B2 JP 2995208 B2 JP2995208 B2 JP 2995208B2 JP 18077197 A JP18077197 A JP 18077197A JP 18077197 A JP18077197 A JP 18077197A JP 2995208 B2 JP2995208 B2 JP 2995208B2
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JP
Japan
Prior art keywords
water chamber
treated water
treated
wastewater
microorganisms
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 - Lifetime
Application number
JP18077197A
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Japanese (ja)
Other versions
JPH1110184A (en
Inventor
繁 佐藤
Original Assignee
有限会社エーダブルエンジニアリング
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Priority to JP18077197A priority Critical patent/JP2995208B2/en
Publication of JPH1110184A publication Critical patent/JPH1110184A/en
Application granted granted Critical
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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

  • Activated Sludge Processes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、廃水処理装置に関
し、更に詳しくは、難分解性有機物質を効率良く分解し
て処理水を効率良く分離することができる廃水処理装置
に関する。The present invention relates to a wastewater treatment apparatus, and more particularly, to a wastewater treatment apparatus capable of efficiently decomposing hardly decomposable organic substances and separating treated water efficiently.

【０００２】[0002]

【従来の技術】従来の廃水処理装置の場合には、処理槽
内で微生物を培養し、この処理槽内へ廃水を供給し、処
理槽内の微生物の作用により廃水中の有機汚染物質を分
解処理している。そして、廃水中の微生物は、有機汚染
物質を栄養源として増殖し、有機汚染物質を複数段階で
分解して最終的には二酸化炭素、エタンなどのガスにま
で分解する。2. Description of the Related Art In the case of a conventional wastewater treatment apparatus, microorganisms are cultured in a treatment tank, wastewater is supplied into the treatment tank, and organic pollutants in the wastewater are decomposed by the action of the microorganisms in the treatment tank. Processing. Then, the microorganisms in the wastewater multiply using the organic pollutant as a nutrient source, decompose the organic pollutant in a plurality of stages, and finally decompose it into a gas such as carbon dioxide or ethane.

【０００３】ところが、科学技術の急激な進展により多
くの有用な化学物質が合成されるに至り、自然界には存
在しない化学物質も沢山合成され、これらの物質は使用
後自然界へ放出されている。自然界から得られる動植物
等の有機物質はそれぞれを廃水として放出しても自然界
に存在する微生物の作用を受け、あるいはこのような微
生物を利用した廃水処理技術により短時間で分解処理さ
れる。また、自然界に存在しない合成物質の中にもこの
ような微生物により比較的短時間で分解処理されるもの
も多数ある。However, the rapid progress of science and technology has led to the synthesis of many useful chemical substances, and many non-natural chemical substances have also been synthesized. These substances have been released into the natural world after use. Even if organic substances such as animals and plants obtained from the natural world are released as wastewater, they are affected by microorganisms existing in the natural world, or are decomposed in a short time by a wastewater treatment technique using such microorganisms. In addition, many synthetic substances that do not exist in nature are decomposed by such microorganisms in a relatively short time.

【０００４】[0004]

【発明が解決しようとする課題】しかしながら、有機合
成物質の中でも例えばメチルナフタレン、イソプロピル
アルコール、テトライソプロピルアミン等のように微生
物だけでは短時間で分解できない、いわゆる難分解性物
質は、微生物を用いた従来の廃水処理装置を用いても短
時間の分解処理が難しいため、このような難分解性物質
の場合には微生物を利用するにしても微生物による複雑
な代謝経路を複数段階を経由させて多段階で分解せざる
を得ず、その分解処理には例えば１８００時間前後もの
長時間を要し、実際には難分解性物質を十分に分解する
ことなく、難分解性物質を含んだ処理水をそのまま排水
せざるを得ないという課題があった。However, among organic synthetic substances, so-called hardly decomposable substances such as methylnaphthalene, isopropyl alcohol, tetraisopropylamine and the like, which cannot be decomposed in a short time by microorganisms alone, use microorganisms. Even if a conventional wastewater treatment apparatus is used, it is difficult to perform a decomposition treatment in a short time. Therefore, in the case of such a hardly decomposable substance, even if a microorganism is used, a complicated metabolic pathway by the microorganism may be performed through multiple stages. It must be decomposed at the stage, and the decomposition treatment takes a long time, for example, about 1800 hours. In practice, the treated water containing the hardly decomposable substance is not sufficiently decomposed without sufficiently decomposing the hardly decomposable substance. There was a problem that water had to be drained as it was.

【０００５】本発明は、上記課題を解決するためになさ
れたもので、難分解性物質を効率良く短時間で分解処理
すると共に、処理水のみを効率良く分離することができ
る廃水処理装置を提供することを目的としている。The present invention has been made to solve the above problems, and provides a wastewater treatment apparatus capable of efficiently decomposing hardly decomposable substances in a short time and efficiently separating only treated water. It is intended to be.

【０００６】尚、本出願人は既に特開平７−２８４７９
２号公報においてこのような課題を解決する廃水処理方
法及び廃水処理装置を提案したが、本発明は特開平７−
２８４７９２号公報で提案した廃水処理装置を更に改良
したものである。Incidentally, the present applicant has already disclosed in Japanese Patent Application Laid-Open No. 7-28479.
Japanese Patent Laid-Open Publication No. Hei 7-1995 proposes a wastewater treatment method and a wastewater treatment apparatus which solve such problems.
This is a further improvement of the wastewater treatment apparatus proposed in Japanese Patent No. 284792.

【０００７】[0007]

【課題を解決するための手段】本発明の請求項１に記載
の廃水処理装置は、有機性汚染物質を含有する廃水を処
理槽内で微生物により分解処理する廃水処理装置におい
て、上記処理槽内を被処理水室と処理水室に区画する濾
過部材と、この濾過部材により区画された被処理水室に
挿入された陽極と、この陽極と対をなして上記処理水室
に挿入された陰極と、上記被処理水室を上記処理水室よ
り高い水圧下で上記被処理水室内の陽極と上記処理水室
の陰極間に電圧を印加し、上記被処理水室内で上記微生
物により処理された処理水を上記濾過部材による電気浸
透及び濾過により上記処理水室へ分離することを特徴と
するものである。According to a first aspect of the present invention, there is provided a wastewater treatment apparatus for decomposing wastewater containing organic pollutants by using microorganisms in a treatment tank. , A filtering member that partitions the treated water chamber into a treated water chamber, an anode inserted into the treated water chamber divided by the filtering member, and a cathode that is paired with the anode and inserted into the treated water chamber. And applying a voltage between the anode in the treated water chamber and the cathode of the treated water chamber under a higher water pressure than the treated water chamber, and the microorganism was treated in the treated water chamber. The treated water is separated into the treated water chamber by electroosmosis and filtration by the filtration member.

【０００８】また、本発明の請求項２に記載の廃水処理
装置は、請求項１に記載の発明において、上記被処理水
室内に加熱手段及び加圧手段をそれぞれ設けたことを特
徴とするものである。[0008] A wastewater treatment apparatus according to a second aspect of the present invention is the wastewater treatment apparatus according to the first aspect, wherein a heating means and a pressurizing means are provided in the water chamber to be treated. It is.

【０００９】また、本発明の請求項３に記載の廃水処理
装置は、請求項１または請求項２に記載の発明におい
て、上記被処理水室内に上記有機性汚染物質分解を促進
する触媒を配置したことを特徴とするものである。Further, in the wastewater treatment apparatus according to claim 3 of the present invention, in the invention according to claim 1 or 2, a catalyst for accelerating the decomposition of the organic pollutant is disposed in the water chamber to be treated. It is characterized by having done.

【００１０】[0010]

【発明の実施の形態】以下、図１〜図３に示す実施形態
に基づいて本発明を説明する。尚、各図中、図１は本発
明の廃水処理装置の一実施形態を示す構成図、図２は本
発明の廃水処理装置の他の実施形態を示す構成図、図３
は本発明の廃水処理装置の更に他の実施形態を示す構成
図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. In each of the drawings, FIG. 1 is a configuration diagram showing one embodiment of the wastewater treatment device of the present invention, FIG. 2 is a configuration diagram showing another embodiment of the wastewater treatment device of the present invention, and FIG.
FIG. 3 is a configuration diagram showing still another embodiment of the wastewater treatment apparatus of the present invention.

【００１１】本実施例の廃水処理装置は、例えば図１に
示すように、有機性汚染物質を含有する廃水１を電気的
に活性化した微生物（図では点で示してある）２により
処理槽内で分解処理するものである。この廃水処理装置
は、流入管３から流入した廃水１を処理する処理槽４
と、この処理槽４を被処理水室５と処理水室６に区画す
る濾過部材７と、この濾過部材７により区画された被処
理水室５に挿入された陽極８と、この陽極８と対をなし
て上記処理水室に挿入された陰極９と、両電極８、９間
に電圧を印加する電源１０とを備え、電源１０により陽
極８と陰極９との間に例えば５〜４０Ｖの電圧を印加し
て被処理水室５及び処理水室６内の廃水及び処理水を介
して両者８、９間で例えば４０〜８０ｍＡの微弱電流が
流れるようにしてある。この微弱電流により被処理水室
５内の微生物を活性化すると共に活性化した微生物２に
よる処理水１１を濾過部材７を介して電気浸透により処
理水室６で得るようにしてある。また、被処理水室５は
処理水室６より差圧ΔＰだけ高い圧力に設定され、この
圧力差ΔＰにより廃水１内で生成した処理水１１の濾過
部材７による濾過を促進するようにしてある。そして、
被処理水室５内の廃水１は水素イオン濃度を例えばｐＨ
＝７〜９.５に調整し、微生物２が繁殖し易い水質に保
持してある。尚、処理水室６には排水口１２が設けら
れ、この排水口１２から処理水１１を排出するようにし
てある。In the wastewater treatment apparatus of the present embodiment, for example, as shown in FIG. 1, a wastewater 1 containing an organic pollutant is treated by a microorganism (indicated by a dot in the figure) 2 which is electrically activated. It is to be decomposed within. The wastewater treatment apparatus includes a treatment tank 4 for treating wastewater 1 flowing from an inflow pipe 3.
A filtering member 7 for dividing the treatment tank 4 into a treated water chamber 5 and a treated water chamber 6; an anode 8 inserted into the treated water chamber 5 divided by the filtering member 7; A cathode 9 inserted into the treated water chamber in a pair, and a power supply 10 for applying a voltage between the electrodes 8 and 9 are provided. When a voltage is applied, a weak current of, for example, 40 to 80 mA flows between the both 8 and 9 through the wastewater and the treated water in the treated water chamber 5 and the treated water chamber 6. The microcurrent in the water chamber 5 to be treated is activated by the weak current, and the treated water 11 by the activated microorganisms 2 is obtained in the treated water chamber 6 by electroosmosis through the filter member 7. Further, the water chamber 5 to be treated is set to a pressure higher than the treated water chamber 6 by the differential pressure ΔP, and the pressure difference ΔP facilitates the filtration of the treated water 11 generated in the wastewater 1 by the filtration member 7. . And
The wastewater 1 in the treated water chamber 5 has a hydrogen ion concentration of, for example, pH.
= 7 to 9.5 and maintained at a water quality where microorganisms 2 can easily propagate. The treated water chamber 6 is provided with a drain port 12 from which the treated water 11 is discharged.

【００１２】また、上記廃水処理装置としては図１に示
す上記濾過部材７を隔壁として互いに離隔して２箇所に
設けて処理槽４内を三室に分割し、対向する濾過部材
７、７間に形成される一室内に陰極を挿入し、残余の二
室内に陽極をそれぞれ挿入したものであっても良く、ま
た、図２に示すように上記処理槽４内の中央部に濾過部
材７によって上端が開口して形成された容器を設置し、
濾過部材７からなる容器の外側が被処理水室５として形
成され、この被処理水室５に陽極８が挿入され、容器内
側の処理室６内に陰極９が挿入されたものであっても良
い。In the wastewater treatment apparatus, the filter member 7 shown in FIG. 1 is provided at two places as partitions and separated from each other to divide the inside of the treatment tank 4 into three chambers. A cathode may be inserted into one chamber to be formed, and an anode may be inserted into the remaining two chambers, respectively. Further, as shown in FIG. Install a container formed by opening,
The outside of the container formed of the filtering member 7 is formed as the water chamber 5 to be treated, the anode 8 is inserted into the water chamber 5, and the cathode 9 is inserted into the treatment chamber 6 inside the container. good.

【００１３】上記有機汚染物質としては、微生物２によ
り分解処理し易い物質と、微生物２により分解処理し難
い物質（例えば、メチルナフタレン、イソプロピルアル
コール、テトライソプロピルアミン等の有機合成物質）
の難分解性物質がある。本実施形態の廃水処理装置は難
分解性物質が有機汚染物質として含まれている廃水に対
して好適に用いることができる。また、本実施形態の廃
水処理装置に用いられる微生物２としては、好気性のも
のや嫌気性のもの、あるいはその中間的なものがあり、
本実施形態では一般的に活性汚泥法に採用されている好
気性の微生物が好ましく用いられる。また、本実施形態
では濾過部材７としては多孔性物質が用いられ、多孔性
物質としては無機物質、有機物質のいずれであっても良
い。As the organic contaminants, there are substances which are easily decomposed by the microorganism 2 and substances which are hard to be decomposed by the microorganism 2 (for example, organic synthetic substances such as methylnaphthalene, isopropyl alcohol, tetraisopropylamine and the like).
There are persistent substances. The wastewater treatment device of the present embodiment can be suitably used for wastewater containing a hardly decomposable substance as an organic pollutant. In addition, the microorganisms 2 used in the wastewater treatment apparatus of the present embodiment include aerobic and anaerobic microorganisms, and intermediates thereof.
In the present embodiment, aerobic microorganisms generally employed in the activated sludge method are preferably used. In the present embodiment, a porous material is used as the filtering member 7, and the porous material may be any of an inorganic material and an organic material.

【００１４】上述の条件下で、廃水１が流入管３から被
処理水室５内に流入すると、被処理水室５内の陽極８で
酸素が発生して微生物２に適した好気性環境を陽極８の
周辺に作ると共にこの微弱電流によって活性化された微
生物が廃水１中の有機汚染物質を活発に取り込んで消化
し最終的には二酸化炭素、メタン等のガスまで分解して
廃水１を浄化する。更に、この過程で被処理水室５内で
は微生物２や有機性汚染物質等の懸濁物質が電気泳動に
より図１の矢印Ａで示すように陽極８側へ徐々に移動し
て微生物２を好気性環境下に集める一方、処理水１１が
図１の矢印Ｂで示すように濾過部材７を電気透過して処
理水室６へ移動すると共に差圧ΔＰによって処理水１１
の濾過部材７による濾過を促進し、被処理水室５から処
理水室６へ処理水１１を分離する。Under the above-described conditions, when the wastewater 1 flows into the water chamber 5 through the inflow pipe 3, oxygen is generated at the anode 8 in the water chamber 5 to create an aerobic environment suitable for the microorganisms 2. Microorganisms formed around the anode 8 and activated by the weak current actively take up and digest organic contaminants in the wastewater 1 and eventually decompose it to gases such as carbon dioxide and methane to purify the wastewater 1. I do. Further, in this process, suspended substances such as microorganisms 2 and organic contaminants gradually move to the anode 8 side by electrophoresis as shown by arrow A in FIG. While being collected in a gaseous environment, the treated water 11 is electrically transmitted through the filter member 7 and moves to the treated water chamber 6 as shown by the arrow B in FIG.
Of the treated water chamber 5 is separated from the treated water chamber 5 into the treated water chamber 6.

【００１５】次に、動作について説明する。まず、処理
槽４の被処理水室５及び処理水室６内に所定水量ある状
態で電源１０を投入し、陽極８、陰極９間に電圧を印加
すると、廃水１、処理水１１において微弱電流が流れ
る。この状態で流入管３から難分解性有機物質等の有機
性汚染物質を含む廃水１が所定の流速で被処理水室５内
へ流入する。被処理水室５では陽極８表面で酸素が発生
して陽極８の周辺で好気性環境を作ると共に、微生物２
や有機性汚染物質等の懸濁物質の表面にマイナス電荷が
帯電して懸濁物質が陽極８側へ矢印Ａで示すように電気
泳動により移動する。これにより、処理対象物である有
機性汚染物質が陽極８周辺で濃縮され、好気性環境下で
微弱電流によって活性化された微生物２によって有機性
汚染物質が最終的には二酸化炭素、メタン等のガスまで
分解される。Next, the operation will be described. First, when a power source 10 is turned on while a predetermined amount of water is present in the treated water chamber 5 and the treated water chamber 6 of the treatment tank 4, and a voltage is applied between the anode 8 and the cathode 9, a weak current flows in the wastewater 1 and the treated water 11. Flows. In this state, the wastewater 1 containing an organic pollutant such as a hardly decomposable organic substance flows from the inflow pipe 3 into the water chamber 5 at a predetermined flow rate. In the water chamber 5 to be treated, oxygen is generated on the surface of the anode 8 to create an aerobic environment around the anode 8 and the microorganisms 2
A negative charge is charged on the surface of a suspended substance such as water or organic contaminants, and the suspended substance moves toward the anode 8 by electrophoresis as indicated by an arrow A. As a result, the organic contaminants to be treated are concentrated around the anode 8, and the organic contaminants finally become carbon dioxide, methane, etc. by the microorganisms 2 activated by the weak current in the aerobic environment. Decomposes to gas.

【００１６】つまり、陽極８と陰極９間を流れる微弱電
流により微生物２を活性化し、分解し易い有機汚染物質
を選択的に分解するという、微生物２の選択性を抑制
し、微生物２に対して難分解性物質をも分解する特性を
付与し、このような難分解性物質の分解に強い微生物２
として馴化培養して微生物２の難分解性物質に対する活
性を増強することができる。この現象は電流により微生
物２が刺激され、その呼吸性及び代謝性が活発になった
ために起きる現象と考えられる。そして、この現象によ
り微生物２の細胞内と細胞外との間で物質の輸送機能が
高まり、難分解性物質をそれ以外の有機汚染物質に匹敵
する速度で栄養源として細胞内に取り込み、難分解性物
質を短時間で速やかに分解処理することができる。そし
て、このように活性化した微生物２及び有機性汚染物質
が電気泳動により陽極８の周辺にそれぞれ集まって濃縮
され、陽極８周辺の好気性環境と相俟って微生物２は分
解し易い有機汚染物質を分解処理すると共に難分解性物
質をも他の分解し易い有機汚染物質と同様に短時間で分
解処理することができ、化学的酸素要求量がＣＯＤ＝３
０の廃水１であっても微生物２により分解処理すること
ができる。この際、難分解性物質の分解除去率は９９％
に達し、従来の処理方法が２０％前後であることと比較
すると本実施形態における分解除去率は格段に向上す
る。また、有機汚染物質の消化と相俟って陽極８表面で
生成する酸素ガスの溶解により微生物２が繁殖する。That is, the selectivity of the microorganisms 2 is suppressed by activating the microorganisms 2 by a weak current flowing between the anode 8 and the cathode 9 and selectively decomposing organic pollutants which are easily decomposed. Microorganisms 2 that have the property of decomposing even hardly decomposable substances and are strong in decomposing such hardly decomposable substances.
As a result, the activity of the microorganism 2 against the hardly decomposable substance can be enhanced. This phenomenon is considered to be a phenomenon that occurs because the microorganisms 2 are stimulated by the electric current and their respiratory and metabolic activities are activated. Due to this phenomenon, the function of transporting substances between the inside and outside of the cells of the microorganism 2 is enhanced, and the hardly decomposable substances are taken into the cells as nutrients at a rate comparable to that of other organic pollutants, and are hardly decomposed. The active substance can be quickly decomposed in a short time. The microorganisms 2 and organic contaminants thus activated are collected and concentrated around the anode 8 by electrophoresis, and the microorganisms 2 are easily decomposed in combination with the aerobic environment around the anode 8. The substance can be decomposed and the hardly decomposable substance can be decomposed in a short period of time in the same manner as other easily decomposable organic contaminants.
Even 0 wastewater 1 can be decomposed by microorganisms 2. At this time, the decomposition removal rate of the hardly decomposable substance is 99%.
, And the decomposition removal rate in the present embodiment is significantly improved as compared with the conventional processing method of about 20%. In addition, the microorganisms 2 propagate by dissolving the oxygen gas generated on the surface of the anode 8 in combination with the digestion of the organic pollutants.

【００１７】また、被処理水室５内で得られた処理水１
１は電気浸透により濾過部材７を透過して被処理水室５
から処理水室６へ移動する。しかも、被処理水室５の水
圧により濾過部材７による濾過が促進され、濾過部材７
によって処理水１１が濾過され処理水１１として処理水
室６に溜まる。そして、処理水室６内の処理水１１が所
定の水量を越えると、図１に示すように処理水１１がオ
ーバフローして排水口１２から排水される。The treated water 1 obtained in the treated water chamber 5
Numeral 1 designates a water chamber 5 to be permeated through the filtering member 7 by electroosmosis.
To the treated water chamber 6. Moreover, the filtration by the filtration member 7 is promoted by the water pressure of the water chamber 5 to be treated,
As a result, the treated water 11 is filtered and accumulated in the treated water chamber 6 as the treated water 11. When the amount of the treated water 11 in the treated water chamber 6 exceeds a predetermined amount, the treated water 11 overflows as shown in FIG.

【００１８】以上説明したように本実施形態によれば、
被処理水室５内に陽極８を挿入すると共に処理水室６内
に陰極９を挿入し、両者間に電圧を印加して被処理水室
５内の廃水１中で微弱電流が流れるようにしたため、廃
水１中の微生物２が微弱電流により活性化されると共に
微生物２や有機性汚染物質が電気泳動により陽極８周辺
に集まって濃縮され、更に陽極８表面で酸素が発生して
陽極８周辺で好気性環境を作るため、陽極８の周辺で難
分解性有機物質を他の有機性汚染物質と一緒に効率良く
分解処理することができ、しかも処理水１１の濾過部材
７による濾過を被処理水室５により促進すると共に処理
水１１の濾過部材７を介した電気浸透により、被処理水
室５から処理水室６へ処理水１１を効率良く分離するこ
とができる。更に、有機性汚染物質の分解処理効率を格
段に高めることができるため、廃水処理装置の設置容積
を格段に削減することができ、その設置面積を例えば従
来の設置容積の１／１０以下にすることができる。As described above, according to the present embodiment,
An anode 8 is inserted into the treated water chamber 5 and a cathode 9 is inserted into the treated water chamber 6, and a voltage is applied between the two so that a weak current flows in the wastewater 1 in the treated water chamber 5. As a result, the microorganisms 2 in the wastewater 1 are activated by the weak electric current, and the microorganisms 2 and organic contaminants are gathered and concentrated around the anode 8 by electrophoresis. In order to create an aerobic environment, it is possible to efficiently decompose the hardly decomposable organic substance together with other organic contaminants around the anode 8, and to filter the treated water 11 by the filtration member 7. The treated water 11 can be efficiently separated from the treated water chamber 5 into the treated water chamber 6 by the water chamber 5 and the electroosmosis of the treated water 11 through the filter member 7. Furthermore, since the efficiency of decomposition treatment of organic pollutants can be significantly improved, the installation volume of the wastewater treatment device can be significantly reduced, and the installation area can be reduced to, for example, 1/10 or less of the conventional installation volume. be able to.

【００１９】図３は本発明の他の実施形態の廃水処理装
置を示す図である。この廃水処理装置は、同図に示すよ
うに、密閉容器からなる処理槽１４と、この処理槽１４
内に設置された濾過部材１７により形成された容器とを
備え、容器の外側（濾過部材１７の外側）が被処理水室
１５として形成され、容器の内側が処理水室１６として
形成されている。被処理水室１５内には陽極１８が挿入
され、処理水室１６内には陰極１９が被処理水室１５を
経由して挿入されている。処理水室１６には流出管２３
が接続され、この流出管２３は処理槽１４を貫通し、処
理水室１６内で得られた処理水２１を外部へ排出するよ
うにしてある。また、処理槽１４の底部には空気流入管
２４挿入され、この空気流入管２４の先端には空気を多
数の気泡として廃水１中に分散させる分散器２４Ａが取
り付けられている。処理槽１４の上部には空気流出管２
５が接続され、この空気流出管２５から処理槽１４内に
供給された空気や、有機性汚染物質の分解ガスを排出す
るようにしてある。FIG. 3 is a view showing a wastewater treatment apparatus according to another embodiment of the present invention. As shown in FIG. 1, the wastewater treatment apparatus includes a treatment tank 14 composed of a closed container,
And a container formed by a filter member 17 installed therein. The outside of the container (outside of the filter member 17) is formed as a treated water chamber 15, and the inside of the container is formed as a treated water chamber 16. . An anode 18 is inserted into the water chamber 15, and a cathode 19 is inserted into the water chamber 16 via the water chamber 15. The treated water chamber 16 has an outflow pipe 23
The outlet pipe 23 penetrates the treatment tank 14 and discharges the treated water 21 obtained in the treated water chamber 16 to the outside. Further, an air inflow pipe 24 is inserted into the bottom of the treatment tank 14, and a disperser 24 </ b> A for dispersing air as a large number of bubbles in the wastewater 1 is attached to the tip of the air inflow pipe 24. The air outflow pipe 2 is located above the treatment tank 14.
5 is connected, and the air supplied into the processing tank 14 and the decomposition gas of organic pollutants are discharged from the air outflow pipe 25.

【００２０】また、上記陽極１８と陰極１９間には白
金、バナジウム、酸化チタン等を担持した酸化触媒２６
が触媒として配置され、酸化触媒２６表面で微生物２に
よる有機性汚染物質の分解を促進するようにしてある。
つまり、分散器２４Ａから浮上した空気中の酸素を酸化
触媒２６表面に化学吸着して活性化し、有機性汚染物質
の酸化を促進するようにしてある。触媒の形態は、粒子
状態、粉末状態で多孔質に形成されたものが好ましく、
特定の形態に制限されるものではない。更に、処理槽１
４内には廃水１を加熱する加熱コイル２７が挿入され、
この加熱コイル２７は熱媒体を加熱する熱交換器２８に
接続されている。そして、ポンプ２９を用いて熱媒体を
熱交換器２８と加熱コイル１７管を循環させて廃水１を
微生物２の活性温度、例えば４０〜６０℃に維持するよ
うにしてある。また、空気流出管２５にはバルブ２５Ａ
が取り付けられ、このバルブ２５Ａによって処理槽１４
の内圧を例えば２〜１０Ｋｇ／ｃｍ2の間で適宜設定
し、処理槽１４内を加圧できるようにしてある。その他
は上記実施形態に準じて構成されている。尚、図３にお
いて、１３は廃水１の流入管、１３Ａはバルブ、２０は
電源である。An oxidation catalyst 26 carrying platinum, vanadium, titanium oxide or the like is provided between the anode 18 and the cathode 19.
Are arranged as a catalyst to promote the decomposition of organic contaminants by the microorganisms 2 on the surface of the oxidation catalyst 26.
In other words, oxygen in the air floating from the disperser 24A is chemically adsorbed on the surface of the oxidation catalyst 26 and activated, thereby promoting the oxidation of organic pollutants. The form of the catalyst is preferably formed in a porous state in a particle state or a powder state,
It is not limited to a particular form. Furthermore, processing tank 1
4, a heating coil 27 for heating the wastewater 1 is inserted,
The heating coil 27 is connected to a heat exchanger 28 for heating the heat medium. The heat medium is circulated through the heat exchanger 28 and the heating coil 17 using a pump 29 so that the wastewater 1 is maintained at the activation temperature of the microorganisms 2, for example, 40 to 60 ° C. The air outlet pipe 25 has a valve 25A.
Is attached, and the processing tank 14 is
Is appropriately set, for example, between 2 and 10 kg / cm 2 so that the inside of the processing tank 14 can be pressurized. Others are configured according to the above embodiment. In FIG. 3, reference numeral 13 denotes an inflow pipe of the wastewater 1, 13A denotes a valve, and 20 denotes a power source.

【００２１】次に、動作について説明する。まず、処理
槽１４の被処理水室１５及び処理水室１６内に所定水量
ある状態で電源２０を投入し、陽極１８、陰極１９間に
電圧を印加すると共に加熱コイル２７に熱媒体を循環さ
せて廃水１を加熱して微生物２が活発に働く温度（例え
ば４０〜６０℃）に保つ。また、これと同時に空気流入
管２４から空気を供給すると共に空気流出管２５のバル
ブ２５Ａの開度を調整して処理槽１４の内圧を２〜１０
Ｋｇ／ｃｍ2に維持する。この状態でバルブ１３Ａを開
き、流入管１３から難分解性有機物質を含む有機性汚染
物質として廃水１が所定の流速で流入する。被処理水室
１５では陽極１８表面で生成する酸素及び分散器２４Ａ
からの空気の気泡により陽極８の周辺で好気性環境を作
ると共に、微生物２や有機性汚染物質等の懸濁物質の表
面にマイナス電荷が帯電して懸濁物質が陽極８側へ電気
泳動により移動する。これにより、処理対象物である有
機性汚染物質が陽極８周辺で濃縮され、好気性環境下で
微弱電流によって活性化された微生物２によって有機性
汚染物質を最終的には二酸化炭素、メタン等のガスまで
分解する。この時、微生物２の作用と酸化触媒２６の作
用とが相俟って難分解性有機物質を容易に分解する。分
解により生成したガス類は空気流出管２５から外部へ流
出し、処理水室１６内の処理水２１は流出管２３から外
部へ流出する。Next, the operation will be described. First, the power supply 20 is turned on with a predetermined amount of water in the water chamber 15 and the water chamber 16 of the processing tank 14, a voltage is applied between the anode 18 and the cathode 19, and the heat medium is circulated through the heating coil 27. The wastewater 1 is heated to maintain a temperature at which the microorganisms 2 actively work (for example, 40 to 60 ° C.). At the same time, air is supplied from the air inlet pipe 24 and the opening degree of the valve 25A of the air outlet pipe 25 is adjusted to adjust the internal pressure of the processing tank 14 to 2 to 10.
Kg / cm 2 is maintained. In this state, the valve 13A is opened, and the wastewater 1 flows at a predetermined flow rate from the inflow pipe 13 as an organic pollutant containing a hardly decomposable organic substance. In the treated water chamber 15, oxygen generated on the surface of the anode 18 and the disperser 24A
Creates an aerobic environment around the anode 8 due to air bubbles from the air, and negatively charges the surface of the suspended substance such as the microorganisms 2 and organic contaminants, causing the suspended substance to migrate toward the anode 8 by electrophoresis. Moving. As a result, the organic contaminants to be treated are concentrated around the anode 8, and the organic contaminants such as carbon dioxide and methane are finally removed by the microorganisms 2 activated by the weak current in the aerobic environment. Decomposes to gas. At this time, the action of the microorganism 2 and the action of the oxidation catalyst 26 combine to easily decompose the hardly decomposable organic substance. Gases generated by the decomposition flow out of the air outflow pipe 25 to the outside, and the treated water 21 in the treated water chamber 16 flows out of the outflow pipe 23 to the outside.

【００２２】以上説明したように本実施形態によれば、
被処理水室１５内の陽極１８と陰極１９間に酸化触媒２
６を設置すると共に加熱コイル２９を設置したため、微
弱電流により微生物２を活性化すると共に加熱コイル２
９により廃水１の温度を微生物２が最も活発に働く温度
に設定することができ、しかも酸化触媒２６により有機
性汚染物質を酸化して微生物２の負荷を軽減することが
できる。また、加圧手段（空気供給管２４）を取り付け
て処理槽１４内を加圧状態にすることができるため、被
処理水室１５から処理水室１６への処理水２１の濾過を
更に促進することができる。As described above, according to the present embodiment,
Oxidation catalyst 2 between anode 18 and cathode 19 in water chamber 15 to be treated
6 and the heating coil 29, the microorganisms 2 are activated by a weak current and the heating coil 2 is activated.
9, the temperature of the wastewater 1 can be set to a temperature at which the microorganisms 2 work most actively, and the load of the microorganisms 2 can be reduced by oxidizing organic pollutants by the oxidation catalyst 26. Further, since the inside of the treatment tank 14 can be pressurized by attaching a pressurizing means (air supply pipe 24), the filtration of the treated water 21 from the treated water chamber 15 to the treated water chamber 16 is further promoted. be able to.

【００２３】尚、本発明は上記各実施例に何等制限され
るものではない。例えば、図１、図３では被処理水室５
を大気に開放した状態にしたが、被処理水室５を密閉系
にし、廃水１を加圧し、濾過部材７による濾過を促進す
ることもできる。また、濾過部材による被処理水室と処
理水室の区画の仕方も必要に応じて適宜変更することが
できる。The present invention is not limited to the above embodiments. For example, in FIG. 1 and FIG.
Is open to the atmosphere, but the water chamber 5 to be treated can be made a closed system, the wastewater 1 can be pressurized, and the filtration by the filtration member 7 can be promoted. Further, the manner of dividing the treated water chamber and the treated water chamber by the filtering member can be appropriately changed as needed.

【００２４】[0024]

【発明の効果】以上説明したように本発明の請求項１〜
請求項３に記載の発明によれば、難分解性物質を効率良
く短時間で分解処理すると共に、処理水のみを効率良く
分離することができる廃水処理装置を提供することがき
る。According to the present invention, as described above,
According to the third aspect of the present invention, it is possible to provide a wastewater treatment apparatus capable of efficiently decomposing hardly decomposable substances in a short time and efficiently separating only treated water.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の廃水処理装置の一実施形態を示す構成
図である。FIG. 1 is a configuration diagram showing one embodiment of a wastewater treatment device of the present invention.

【図２】本発明の廃水処理装置の他の実施形態を示す構
成図である。FIG. 2 is a configuration diagram showing another embodiment of the wastewater treatment device of the present invention.

【図３】本発明の廃水処理装置の更に他の実施形態を示
す構成図である。FIG. 3 is a configuration diagram showing still another embodiment of the wastewater treatment apparatus of the present invention.

【符号の説明】[Explanation of symbols]

１ 廃水 ２ 微生物 ４、１４ 処理槽 ５、１５ 被処理水室 ６、１６ 処理水室 ７、１７ 濾過部材 ８、１８ 陽極 ９、１９ 陰極 １１、２１ 処理水 ２４ 空気流入管（加圧手段） ２６ 酸化触媒（触媒） ２７ 加熱コイル（加熱手段） DESCRIPTION OF SYMBOLS 1 Wastewater 2 Microorganism 4, 14 Treatment tank 5, 15 Treatment water chamber 6, 16 Treatment water chamber 7, 17 Filtration member 8, 18 Anode 9, 19 Cathode 11, 21 Treatment water 24 Air inflow pipe (pressurizing means) 26 Oxidation catalyst (catalyst) 27 Heating coil (heating means)

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) C02F 3/12 C02F 1/469 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) C02F 3/12 C02F 1/469

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 有機性汚染物質を含有する廃水を処理槽
内で微生物により分解処理する廃水処理装置において、
上記処理槽内を被処理水室と処理水室に区画する濾過部
材と、この濾過部材により区画された被処理水室に挿入
された陽極と、この陽極と対をなして上記処理水室に挿
入された陰極と、上記被処理水室を上記処理水室より高
い水圧下で上記被処理水室内の陽極と上記処理水室の陰
極間に電圧を印加し、上記被処理水室内で上記微生物に
より処理された処理水を上記濾過部材による電気浸透及
び濾過により上記処理水室へ分離することを特徴とする
廃水処理装置。1. A wastewater treatment apparatus for decomposing wastewater containing organic pollutants by microorganisms in a treatment tank,
A filtration member for partitioning the inside of the treatment tank into a treated water chamber and a treated water chamber, an anode inserted into the treated water chamber divided by the filtration member, and a pair with the anode, A voltage is applied between the inserted cathode and the treated water chamber under a higher water pressure than the treated water chamber, between the anode in the treated water chamber and the cathode in the treated water chamber, and the microorganisms are treated in the treated water chamber. A wastewater treatment apparatus, wherein the treated water treated by the filtration member is separated into the treated water chamber by electroosmosis and filtration by the filtration member. 【請求項２】 上記被処理水室内に加熱手段及び加圧手
段をそれぞれ設けたことを特徴とする請求項１に記載の
廃水処理装置。2. The wastewater treatment apparatus according to claim 1, wherein a heating unit and a pressurizing unit are provided in the water chamber to be treated. 【請求項３】 上記被処理水室内に上記有機性汚染物質
分解を促進する触媒を配置したことを特徴とする請求項
１または請求項２に記載の廃水処理装置。3. The wastewater treatment apparatus according to claim 1, wherein a catalyst that promotes decomposition of the organic pollutant is disposed in the water chamber to be treated.
JP18077197A 1997-06-20 1997-06-20 Wastewater treatment equipment Expired - Lifetime JP2995208B2 (en)

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JP2995208B2 true JP2995208B2 (en) 1999-12-27

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GB2351245B (en) * 1999-06-21 2003-07-16 Univ Hull Method of controlling liquid movement in a chemical device
JP4843265B2 (en) * 2005-06-15 2011-12-21 三菱重工印刷紙工機械株式会社 Waste liquid recycling device
EP3284829A1 (en) * 2009-06-16 2018-02-21 Cambrian Innovation, Inc. Systems and devices for treating and monitoring water, wastewater and other biodegradable matter
AU2010328173B9 (en) 2009-12-08 2015-07-23 Cambrian Innovation, Inc. Microbially-based sensors for environmental monitoring
US10099950B2 (en) 2010-07-21 2018-10-16 Cambrian Innovation Llc Bio-electrochemical system for treating wastewater
US10851003B2 (en) 2010-07-21 2020-12-01 Matthew Silver Denitrification and pH control using bio-electrochemical systems
WO2012054629A2 (en) 2010-10-19 2012-04-26 Cambrian Innovation Bio-electrochemical systems
DE102010049076A1 (en) * 2010-10-20 2012-04-26 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus for treating water by means of filtration or membrane separation processes
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