JP2000051894A - Sewage treatment apparatus - Google Patents

Sewage treatment apparatus

Info

Publication number
JP2000051894A
JP2000051894A JP22461898A JP22461898A JP2000051894A JP 2000051894 A JP2000051894 A JP 2000051894A JP 22461898 A JP22461898 A JP 22461898A JP 22461898 A JP22461898 A JP 22461898A JP 2000051894 A JP2000051894 A JP 2000051894A
Authority
JP
Japan
Prior art keywords
sewage
electrode
electrodes
storage tank
partition plate
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.)
Pending
Application number
JP22461898A
Other languages
Japanese (ja)
Inventor
Masaki Moriizumi
雅貴 森泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP22461898A priority Critical patent/JP2000051894A/en
Priority to TW88110211A priority patent/TW475921B/en
Priority to KR1019990027386A priority patent/KR100303234B1/en
Priority to CN99110550A priority patent/CN1096424C/en
Publication of JP2000051894A publication Critical patent/JP2000051894A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/10—Packings; Fillings; Grids
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
    • 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

Abstract

PROBLEM TO BE SOLVED: To provide a sewage treatment apparatus capable of removing both of phosphoric acid and nitrogen. SOLUTION: A sewage treatment apparatus is equipped with a sewage housing tank, electrodes 2 and 3, a DC power supply and a control part. The electrodes 2 and 3 comprise rectangular iron plates to elute iron ions removing phosphoric acid in sewage by electrolysis. The lower half parts of the electrodes 2 and 3 are covered with carriers 9, 10 comprising porous reticulated members made of a polypropylene resin. The carriers 9 and 10 allow microorganisms participated in denitrification reaction to live in sewage. When the control part reverses the polarities of the electrodes 2 and 3, phosphoric acid is removed by the flocculation reaction of iron ions and phosphate ions in sewage on the side of the electrodes 2 and 3 becoming anodic in polarity. Further, on the side of the electrodes 2 and 3 becoming cathodic in polarity, nitrogen is removed by denitrification reaction based on the microorganisms on the carriers 9 and 10.

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】本発明は汚水処理装置に関
し、さらに詳しくは、屎尿廃水や生活廃水などの汚水に
含まれるリン酸を、電気分解により溶出した金属イオン
と反応させて沈殿除去するための汚水処理装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sewage treatment apparatus, and more particularly, to a method for reacting phosphoric acid contained in sewage such as human wastewater or domestic wastewater with metal ions eluted by electrolysis to remove precipitates. The present invention relates to a sewage treatment apparatus.

【０００２】[0002]

【従来の技術】この種の汚水処理装置としては、従来、
次のようなものが知られている。2. Description of the Related Art Conventionally, this type of sewage treatment apparatus has
The following are known.

【０００３】すなわち、処理すべき汚水が収納される汚
水収納槽を設け、その槽内に水不溶性リン酸塩形成金属
からなる電極を一組以上配置しておき、これらの電極に
電流を供給して水不溶性リン酸塩形成金属イオンを電気
化学的に汚水中に溶出させることで、リン酸を水不溶性
塩にして沈殿除去するようにした装置である。That is, a sewage storage tank for storing sewage to be treated is provided, and one or more electrodes made of a water-insoluble phosphate-forming metal are arranged in the tank, and a current is supplied to these electrodes. This is an apparatus in which phosphoric acid forming a water-insoluble salt is electrochemically eluted into sewage water to convert phosphoric acid into a water-insoluble salt for precipitation and removal.

【０００４】[0004]

【発明が解決しようとする課題】このような汚水処理装
置では、電極から溶出した水不溶性リン酸塩形成金属イ
オンと汚水中のリン酸イオンとを凝集反応させてリン酸
除去を行うことができるが、汚水中の窒素を除去するこ
とはできないという問題点がある。In such a sewage treatment apparatus, phosphoric acid can be removed by causing an agglutination reaction between water-insoluble phosphate-forming metal ions eluted from the electrode and phosphate ions in the sewage. However, there is a problem that nitrogen in wastewater cannot be removed.

【０００５】本発明は、このような実情に鑑みてなされ
たものであり、リン酸除去と窒素除去とを併せて行うこ
とのできる汚水処理装置を提供することを課題とする。[0005] The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a sewage treatment apparatus capable of performing both phosphoric acid removal and nitrogen removal.

【０００６】[0006]

【課題を解決するための手段】本発明によれば、汚水収
納槽と、この汚水収納槽に収納される汚水に少なくとも
一部が浸漬するように配され、その汚水中のリン酸を沈
殿除去するための鉄イオンまたはアルミニウムイオンを
電気分解により溶出する少なくとも一組の電極と、これ
らの電極に電解用電流を供給するための電源と、この電
源を制御するための制御部とを備え、各電極の少なくと
も一部が、汚水中で脱窒反応に関与する微生物を生息さ
せるための担体で覆われており、制御部が定期的に電極
の極性を反転させることで、極性がアノードになった電
極側でリン酸の除去が行われ、極性がカソードになった
電極側でその担体における微生物に基づく脱窒反応によ
る窒素の除去が行われることを特徴とする汚水処理装置
が提供される。According to the present invention, a sewage storage tank and at least a part of the sewage stored in the sewage storage tank are arranged so as to be immersed therein, and phosphoric acid in the sewage is removed by precipitation. At least one set of electrodes for eluting iron ions or aluminum ions by electrolysis, a power supply for supplying a current for electrolysis to these electrodes, and a control unit for controlling the power supply. At least a part of the electrode is covered with a carrier for inhabiting microorganisms involved in the denitrification reaction in the sewage, and the polarity is changed to the anode by the control unit periodically inverting the polarity of the electrode. A sewage treatment apparatus is provided, wherein phosphoric acid is removed on the electrode side, and nitrogen is removed on the electrode side having a polarity as a cathode by a denitrification reaction based on microorganisms in the carrier.

【０００７】汚水処理槽は、電気分解処理に供される汚
水が収納される。電極は、例えば長方形板状のものが少
なくとも一組、配され、電気分解により鉄イオンまたは
アルミニウムイオンを汚水処理槽に溶出する。電源は、
これらの電極に電気分解のための電流を供給する。制御
部は電源を制御することで電気分解を制御する。[0007] The sewage treatment tank stores sewage to be subjected to electrolysis treatment. For example, at least one set of electrodes having a rectangular plate shape is disposed, and iron ions or aluminum ions are eluted into the sewage treatment tank by electrolysis. The power supply
A current for electrolysis is supplied to these electrodes. The control unit controls the electrolysis by controlling the power supply.

【０００８】一組の電極は例えば、両方とも鉄及びアル
ミニウムのうちの１つから、または一方が鉄及びアルミ
ニウムのうちの１つから他方が水不溶性金属から構成さ
れる。前者の場合は、所望により電極の極性反転を行う
ことで、電極からのイオン溶出が起こらなくなる電極の
不動態化を防止することができる。また、後者の場合
は、鉄及びアルミニウムのうちの１つから構成された電
極をアノード（陽極）とし、水不溶性金属から構成され
た電極をカソード（陰極）とする。[0008] The set of electrodes is, for example, both composed of one of iron and aluminum, or one composed of one of iron and aluminum and the other composed of a water-insoluble metal. In the former case, by inverting the polarity of the electrode as desired, it is possible to prevent passivation of the electrode where ion elution from the electrode does not occur. In the latter case, an electrode made of one of iron and aluminum is used as an anode, and an electrode made of a water-insoluble metal is used as a cathode.

【０００９】ここで、水不溶性金属から構成された電極
としては、例えば銀や白金などの電極がある。また、一
組の電極は例えば、把手部のある電気絶縁性スペーサな
どにより、それらの間隔が一定に保たれているのが好ま
しい。Here, as an electrode composed of a water-insoluble metal, for example, there is an electrode such as silver or platinum. Further, it is preferable that the distance between the pair of electrodes is kept constant by, for example, an electrically insulating spacer having a handle.

【００１０】汚水処理槽内に溶出した鉄イオンまたはア
ルミニウムイオンは、汚水中のリン酸（オルトリン酸）
と反応して、水不溶性リン化合物（Ｆｅ（ＯＨ）x （Ｐ
Ｏ4）y またはＡｌ（ＯＨ）x （ＰＯ4 ）y ）となって
凝集し、汚水処理槽内に沈殿する。The iron ions or aluminum ions eluted in the sewage treatment tank are converted to phosphoric acid (orthophosphoric acid) in the sewage.
And react with the water-insoluble phosphorus compound (Fe (OH) x (P
O 4 ) y or Al (OH) x (PO 4 ) y ) is aggregated and precipitated in the sewage treatment tank.

【００１１】各電極は、その少なくとも一部−汚水に浸
漬されるべき部分−が担体で覆われる。この担体は、汚
水中で脱窒反応に関与する微生物−例えば嫌気性微生物
の一種である脱窒素細菌など−を生息させるためのもの
である。[0011] At least a part of each electrode-a part to be immersed in sewage-is covered with a carrier. This carrier is for inhabiting microorganisms involved in the denitrification reaction in sewage such as denitrifying bacteria which are a kind of anaerobic microorganisms.

【００１２】担体の材質は、汚水中で脱窒反応に関与す
る微生物が生息するものであれば特に限定されない。例
えば、プラスチック製、炭素繊維製または焼結セラミッ
ク製の多孔質性網状体からなるものが用いられる。[0012] The material of the carrier is not particularly limited as long as microorganisms involved in the denitrification reaction inhabit the wastewater. For example, a porous network made of plastic, carbon fiber, or sintered ceramic is used.

【００１３】担体は例えば、各電極の上縁から吊り下げ
られ、または一組の電極を収納するための電極ケースの
底面に載置されて、各電極の少なくとも一部を覆うよう
に配設される。The carrier is, for example, suspended from the upper edge of each electrode, or placed on the bottom surface of an electrode case for accommodating a set of electrodes, and disposed so as to cover at least a part of each electrode. You.

【００１４】制御部は、例えば３０分〜１０日間（より
好ましくは１時間〜７日間、さらに好ましくは２日間〜
７日間）に１回の割合で、定期的に電極の極性を反転さ
せる。すると、極性がアノードになった電極側で、鉄イ
オンまたはアルミニウムイオンと汚水中のリン酸イオン
との凝集反応によるリン酸の除去が行われる。また、極
性がカソードになった電極側でその担体における微生物
に基づく脱窒反応−汚水中の硝酸イオンや亜硝酸イオン
が窒素ガスに還元される反応−による窒素の除去が行わ
れる。[0014] The control unit is, for example, 30 minutes to 10 days (more preferably 1 hour to 7 days, more preferably 2 days to
Once every seven days), the polarity of the electrode is periodically inverted. Then, phosphoric acid is removed by an agglutination reaction between iron ions or aluminum ions and phosphate ions in the sewage on the electrode side having the polarity of the anode. In addition, nitrogen is removed by a denitrification reaction based on microorganisms in the carrier-a reaction in which nitrate ions and nitrite ions in sewage are reduced to nitrogen gas-on the electrode side whose polarity is a cathode.

【００１５】本発明に係る汚水処理装置は好ましくは、
一組の電極どうしをアノード側とカソード側とに仕切る
ための仕切板と、各電極に曝気を施すための曝気装置と
をさらに備え、制御部がさらに、曝気装置を制御して、
極性がアノードになった電極にのみ曝気を施すように構
成される。The sewage treatment apparatus according to the present invention is preferably
A partition plate for separating one set of electrodes into an anode side and a cathode side, and an aeration device for applying aeration to each electrode, further comprising a control unit for controlling the aeration device,
It is configured to aerate only the electrode whose polarity is the anode.

【００１６】このように構成されている場合は、曝気装
置によりアノード側の電極にのみ曝気を施してアノード
側におけるリン酸除去反応を促進するとともにその電極
の洗浄を行い、一方、カソード側の電極を還元雰囲気に
置くことができる。In such a configuration, only the anode electrode is aerated by an aerator to promote the phosphoric acid removal reaction on the anode side and to clean the electrode, while the cathode side electrode is cleaned. Can be placed in a reducing atmosphere.

【００１７】仕切板としては例えば、セラミック製やイ
オン交換膜製であってその仕切板を通してイオンのみを
移動させるようにしたものや、イオンを通過させないプ
ラスチック製であってその仕切板の下方を通してイオン
を移動させるようにしたものなどが用いられる。The partition plate is made of, for example, a ceramic or an ion-exchange membrane, in which only ions are moved through the partition plate, or made of a plastic that does not allow the passage of ions, and the ion is passed through the lower portion of the partition plate. And the like are moved.

【００１８】また、曝気装置は例えば、汚水収納槽外に
設けられた給気用ブロアと、このブロアに接続されて槽
内へ延びる給気管と、この給気管に接続されて槽底部に
配された曝気管とを備えてなる。Further, the aeration device is provided, for example, with an air supply blower provided outside the sewage storage tank, an air supply pipe connected to the blower and extending into the tank, and an air supply pipe connected to the air supply pipe and disposed at the bottom of the tank. And an aeration tube.

【００１９】本発明に係る汚水処理装置は好ましくは、
汚水収納槽へ汚水を導入するための導入管をさらに備
え、汚水収納槽における仕切板が、導入管からの汚水を
仕切板の一端を経て汚水収納槽へ流入させ仕切板の一方
側面もしくは他方側面に沿って他端へ導き、次いで他端
を回ってその他方側面もしくは一方側面に沿って一端を
経て流出させるように配され、導入管と汚水収納槽との
間に、導入管からの汚水を仕切板の一方側面及び他方側
面のうちのいずれかに沿って導くように切り換える流路
切換バルブがさらに設けられ、制御部がさらに、流路切
換バルブを制御して、導入管からの汚水を極性がカソー
ドになった電極のある仕切板の側面へまず流入させるよ
うに構成される。The wastewater treatment apparatus according to the present invention is preferably
An inlet pipe for introducing sewage into the sewage storage tank is further provided, and a partition plate in the sewage storage tank allows sewage from the inlet pipe to flow into the sewage storage tank through one end of the partition plate, and one side or the other side of the partition plate. Along the other end, and then around the other end to flow out through one end along the other side or one side, between the introduction pipe and the sewage storage tank, the sewage from the introduction pipe There is further provided a flow path switching valve for switching so as to guide along one of the one side surface and the other side surface of the partition plate, and the control unit further controls the flow path switching valve to polarize sewage from the introduction pipe. Is configured to first flow into the side surface of the partition plate having the cathode electrode.

【００２０】このように構成されている場合は、制御部
が、流路切換バルブを制御して、導入管からの汚水を、
極性がカソードになった電極のある仕切板の側面の方へ
まず流入させる。すると、流入した汚水はその後、仕切
板の他端を回ってアノード電極のある仕切板の側面の方
へ進む。したがって、溶存酸素濃度の比較的少ないカソ
ード側で前記脱窒反応を充分に行った後に、曝気により
溶存酸素濃度の上昇したアノード側で前記凝集反応と電
極の洗浄とを行うことが可能になる。In such a configuration, the control unit controls the flow path switching valve to remove sewage from the introduction pipe.
First, it is made to flow toward the side of the partition plate having the electrode whose polarity is the cathode. Then, the inflowing sewage goes around the other end of the partition plate and proceeds toward the side surface of the partition plate having the anode electrode. Therefore, after the denitrification reaction is sufficiently performed on the cathode side where the dissolved oxygen concentration is relatively low, the agglutination reaction and the electrode cleaning can be performed on the anode side where the dissolved oxygen concentration is increased by aeration.

【００２１】[0021]

【発明の実施の形態】以下、本発明の２つの実施の形態
を図面に基づいて説明する。なお、これらによって本発
明が限定されるものではない。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Two embodiments of the present invention will be described below with reference to the drawings. The present invention is not limited by these.

【００２２】実施の形態１ 図１及び図２に示すように、本発明の実施の形態１に係
る汚水処理装置Ｄ1 は、１つの汚水収納槽１と、二組の
電極２・３と、各組の電極２・３に電流を供給するため
の直流電源１１と、この電源１１を制御するための制御
部（図示略）とを備えてなる。Embodiment 1 As shown in FIGS. 1 and 2, a sewage treatment apparatus D 1 according to Embodiment 1 of the present invention includes one sewage storage tank 1, two sets of electrodes 2 and 3, A DC power supply 11 for supplying a current to each pair of electrodes 2 and 3 and a control unit (not shown) for controlling the power supply 11 are provided.

【００２３】汚水収納槽１は、平面形状がほぼ長方形で
あってテーパ状の底壁を有する箱からなり、屎尿廃水や
生活廃水などの処理すべき汚水が収納される。汚水収納
槽１の一方端壁の上部には、汚水収納槽１へ汚水を導入
するための導入管４に接続される汚水導入口１ａが形成
されている。The sewage storage tank 1 is a box having a substantially rectangular planar shape and a tapered bottom wall, and stores sewage to be treated such as human wastewater or domestic wastewater. A sewage inlet 1 a connected to an introduction pipe 4 for introducing sewage into the sewage storage tank 1 is formed in an upper portion of one end wall of the sewage storage tank 1.

【００２４】図３に示すように、各組の電極２・３は、
いずれも長方形の鉄板からなり、汚水中のリン酸を除去
するための鉄イオンを電気分解により溶出する。また、
各組の電極２・３は、これらの上端に取り付けられた塩
化ビニル樹脂製の電気絶縁性スペーサ５により、それら
の間隔が一定に保たれている。スペーサ５には把手部５
ａが設けられている。As shown in FIG. 3, each set of electrodes 2 and 3
Each is made of a rectangular iron plate and elutes iron ions for removing phosphoric acid in wastewater by electrolysis. Also,
The distance between the electrodes 2 and 3 of each set is kept constant by an electrically insulating spacer 5 made of vinyl chloride resin attached to the upper end thereof. The spacer 5 has a handle 5
a is provided.

【００２５】電極２・３の上端には接続用端子６が設け
られている。これらの端子６はリード線７を介してコネ
クタ８に接続されている。コネクタ８は前記電源に接続
される。A connection terminal 6 is provided on the upper end of each of the electrodes 2 and 3. These terminals 6 are connected to a connector 8 via a lead wire 7. The connector 8 is connected to the power supply.

【００２６】電極２・３の下半部は、ポリプロピレン樹
脂製の多孔質性網状体からなる担体９・１０で覆われて
いる。これらの担体９・１０は、図示しないひもにより
各電極２・３の上縁から吊り下げられており、汚水中で
脱窒反応に関与する微生物を生息させる。The lower halves of the electrodes 2 and 3 are covered with carriers 9 and 10 made of a porous network made of polypropylene resin. These carriers 9 and 10 are suspended from the upper edges of the electrodes 2 and 3 by strings (not shown), and inhabit microorganisms involved in the denitrification reaction in the sewage.

【００２７】図１及び図２に示すように、二組の電極２
・３の直下には、これらに平行に２本の曝気管１２・１
３が水平に配されている。これらの曝気管１２・１３
は、汚水処理装置Ｄ1 が備える曝気装置の一部である。
すなわち、この曝気装置は、汚水収納槽１外に設けられ
た給気用ブロア１４と、このブロア１４に給気切換用バ
ルブ１５を介して接続されて槽内へ延びる２本の給気管
１６・１７と、これらの給気管１６・１７に接続されて
槽底部に配された曝気管１２・１３とを備えてなる。As shown in FIGS. 1 and 2, two sets of electrodes 2
・ Below immediately below 3, two aeration tubes 12 ・ 1 parallel to these
3 are arranged horizontally. These aeration tubes 12 and 13
Is part of the aeration device provided in the sewage treatment apparatus D 1.
That is, the aeration apparatus includes an air supply blower 14 provided outside the sewage storage tank 1 and two air supply pipes 16. Connected to the blower 14 via an air supply switching valve 15 and extending into the tank. 17 and aeration tubes 12 and 13 connected to these air supply tubes 16 and 17 and arranged at the bottom of the tank.

【００２８】制御部は、ここでは５日間に１回の割合で
電極２・３の極性を反転させるように構成されている。
制御部が電極２・３の極性を反転させると、極性がアノ
ードになった電極２・３側で、鉄イオンと汚水中のリン
酸イオンとの凝集反応によるリン酸の除去が行われる。
また、極性がカソードになった電極２・３側でその担体
９・１０における微生物に基づく脱窒反応−汚水中の硝
酸イオンや亜硝酸イオンが窒素ガスに還元される反応−
による窒素の除去が行われる。Here, the control unit is configured to reverse the polarity of the electrodes 2 and 3 once every five days.
When the control unit reverses the polarity of the electrodes 2 and 3, phosphoric acid is removed by an agglutination reaction between iron ions and phosphate ions in the wastewater on the electrodes 2.3 and 3 having the polarity of the anode.
In addition, the denitrification reaction based on the microorganisms in the carriers 9 and 10 at the electrodes 2 and 3 having the polarity of the cathode, the reaction in which nitrate ions and nitrite ions in wastewater are reduced to nitrogen gas,
To remove nitrogen.

【００２９】汚水処理装置Ｄ1 は、一組の電極２・３ど
うしをアノード側とカソード側とに仕切るための長方形
仕切板１８をさらに備えている。仕切板１８は、セラミ
ック製であってその仕切板１８を通してイオンのみを移
動させるようにしたものである。図２に示すように、こ
の仕切板１８は、導入管４からの汚水を仕切板１８の一
端（導入管４側の端）を経て汚水収納槽１へ流入させ、
仕切板１８の一方側面もしくは他方側面に沿って他端へ
導き、次いで他端を回ってその他方側面もしくは一方側
面に沿って一端を経て流出させるように配されている。The sewage treatment apparatus D 1 further includes a rectangular partition plate 18 for partitioning a pair of electrodes 2 and 3 into an anode side and a cathode side. The partition plate 18 is made of ceramic and allows only ions to move through the partition plate 18. As shown in FIG. 2, the partition plate 18 allows the sewage from the introduction pipe 4 to flow into the sewage storage tank 1 via one end (the end on the introduction pipe 4 side) of the partition plate 18.
The partition plate 18 is arranged to be guided to the other end along one side or the other side, and then to flow around the other end and to flow out through one end along the other side or one side.

【００３０】また、導入管４と汚水収納槽１との間には
流路切換バルブ１９が設けられている。流路切換バルブ
１９は、導入管４からの汚水を仕切板１８の一方側面及
び他方側面のうちのいずれかに沿って導くように、制御
部により切り換えられる。A flow path switching valve 19 is provided between the introduction pipe 4 and the wastewater storage tank 1. The flow path switching valve 19 is switched by the control unit so as to guide the sewage from the introduction pipe 4 along one of the one side surface and the other side surface of the partition plate 18.

【００３１】制御部はさらに、流路切換バルブ１９を制
御して、導入管４からの汚水を極性がカソードになった
電極２・３のある仕切板１８の側面へまず流入させるよ
うに構成されている。The control unit is further configured to control the flow path switching valve 19 so that sewage from the introduction pipe 4 first flows into the side surface of the partition plate 18 having the electrodes 2 and 3 whose polarity is a cathode. ing.

【００３２】このように構成されているので、図２で示
されるように、仕切板１８の一方側面にある電極３・３
の極性をカソードになるように制御するとともに、流路
切換バルブ１９を制御して、導入管４からの汚水を矢印
のように、極性がカソードになった電極３・３のある仕
切板１８の側面の方へ、流路切換バルブ１９の流入路１
９ａを介してまず流入させる。すると、流入した汚水は
その後、仕切板１８の他端を回って仕切板１８の他方側
面（アノード電極２・２のある側面）の方へ進み、矢印
のように流路切換バルブ１９の他方側の流出路１９ｂを
経て汚水収納槽１から流出する。With this configuration, as shown in FIG. 2, the electrodes 3.3 on one side of the partition plate 18 are provided.
And the flow path switching valve 19 is controlled so that the sewage from the introduction pipe 4 is removed from the partition plate 18 having the electrodes 3 and 3 whose polarity is the cathode as shown by the arrow. To the side, the inflow path 1 of the flow path switching valve 19
First flow through 9a. Then, the inflowing sewage goes around the other end of the partition plate 18 toward the other side surface (the side surface with the anode electrodes 2) of the partition plate 18, and as shown by the arrow, the other side of the flow path switching valve 19. Flows out of the wastewater storage tank 1 through the outflow path 19b.

【００３３】したがって、溶存酸素濃度の比較的少ない
カソード側で前記脱窒反応が充分に行われた後に、曝気
により溶存酸素濃度の上昇したアノード電極２・２で前
記凝集反応を行うことが可能になる。なお、流出路１９
ｂから流出した汚水は後述の第１嫌気濾床槽１０４へ流
入する。Therefore, after the denitrification reaction is sufficiently performed on the cathode side where the dissolved oxygen concentration is relatively low, it is possible to perform the agglutination reaction on the anode electrodes 2 having the dissolved oxygen concentration increased by aeration. Become. The outflow channel 19
The sewage flowing out of b flows into a first anaerobic filter bed tank 104 described later.

【００３４】その後に制御部により極性の反転が行われ
ると、それに連動して流路切換バルブ１９が切り換えら
れ、導入管４からの汚水は、極性がカソードになった電
極２・２のある仕切板１８の他方側面の方へ、流入路１
９ａを介して流入する。流入した汚水はその後、仕切板
１８の他端を回って仕切板１８の一方側面（アノード電
極３・３のある側面）の方へ進み、流路切換バルブ１９
の一方側の流出路１９ｃを経て汚水収納槽１から流出す
る。なお、図１において２０は汚泥引抜バルブである。
汚水収納槽１に溜まった汚泥は、汚泥引抜バルブ２０を
開放することにより引き抜かれる。この汚泥引抜バルブ
２０の開閉は、制御部によりまたは手動で操作される。After that, when the polarity is reversed by the control unit, the flow path switching valve 19 is switched in conjunction therewith, and the sewage from the introduction pipe 4 is separated from the electrode 2.2 having the cathode whose polarity is the cathode. Inflow channel 1 toward the other side of plate 18
9a. The inflowing sewage then goes around the other end of the partition plate 18 toward one side surface (the side surface with the anode electrodes 3) of the partition plate 18, and flows through the flow path switching valve 19.
Flows out of the sewage storage tank 1 through the outflow passage 19c on one side. In FIG. 1, reference numeral 20 denotes a sludge extraction valve.
The sludge accumulated in the sewage storage tank 1 is extracted by opening the sludge extraction valve 20. The opening and closing of the sludge extraction valve 20 is operated by a control unit or manually.

【００３５】図４に示すように、汚水処理装置Ｄ1 は小
型合併処理浄化槽１０１に組み込まれている。As shown in FIG. 4, the sewage treatment apparatus D 1 is incorporated in a small-sized combined treatment / purification tank 101.

【００３６】浄化槽１０１の内部は、屎尿廃水と生活廃
水との混合した汚水が流入する流入管１０２の側から、
汚水処理ずみの水を外部へ放流する放流管１０３の側に
かけて、汚水浄化処理の工程順に応じて複数の槽が区画
形成された槽構造にされている。The inside of the septic tank 101 is arranged from the side of an inflow pipe 102 into which sewage mixed with human wastewater and domestic wastewater flows.
A tank structure is formed in which a plurality of tanks are defined and formed in accordance with the order of the sewage purification process on the side of the discharge pipe 103 for discharging sewage treated water to the outside.

【００３７】１０４は流入管１０２側の最前部に区画形
成された第１嫌気濾床槽である。この第１嫌気濾床槽１
０４では、屎尿廃水や生活廃水の中に混入していて浄化
処理できない夾雑物を沈澱分離させて除去する。Reference numeral 104 denotes a first anaerobic filter tank formed at the forefront of the inflow pipe 102 side. This first anaerobic filter bed tank 1
In step 04, impurities that have been mixed in the human wastewater or domestic wastewater and cannot be purified are removed by sedimentation.

【００３８】第１嫌気濾床槽１０４には嫌気性微生物の
濾床である嫌気濾床１０５が設けられており、嫌気濾床
１０５に微生物を棲息させることで嫌気処理を行うよう
にされている。嫌気濾床１０５は、流入水や逆洗廃水が
一時的に流入した際の水流によって沈澱物が巻き上げら
れて浮遊物質となって次の槽へ流出するのを抑えて、次
の槽の負荷を下げることができる。An anaerobic filter bed 105, which is a filter bed for anaerobic microorganisms, is provided in the first anaerobic filter bed tank 104, and anaerobic treatment is performed by inhabiting the microorganisms in the anaerobic filter bed 105. . The anaerobic filter bed 105 suppresses the load on the next tank by preventing the sediment from being lifted up by the water flow when the inflow water or backwash wastewater temporarily flows in and becoming a suspended substance and flowing out to the next tank. Can be lowered.

【００３９】１０６は第１嫌気濾床槽１０４に隣接して
区画形成された次の第２嫌気濾床槽である。第２嫌気濾
床槽１０６では、嫌気濾床１０７に嫌気性微生物を棲息
させることで嫌気処理を行うようにされている。Reference numeral 106 denotes a next second anaerobic filter bed formed adjacent to the first anaerobic filter bed 104. In the second anaerobic filter bed tank 106, anaerobic microorganisms are made to inhabit the anaerobic filter bed 107 to perform anaerobic treatment.

【００４０】１０８は第２嫌気濾床槽１０６に隣接して
区画形成された次の生物膜濾過槽である。Reference numeral 108 denotes a next biofilm filtration tank which is formed adjacent to the second anaerobic filter bed tank 106.

【００４１】第１嫌気濾床槽１０４と第２嫌気濾床槽１
０６とは垂直な隔壁１０９で仕切られている。隔壁１０
９の上部には、隔壁１０９を貫通する移流口１１０が開
口形成されている。そして、移流口１１０に移流管１１
１が嵌められている。移流管１１１は、下端が第１嫌気
濾床槽１０４の嫌気濾床１０５の下部に位置しており、
清掃口を兼ねている。First anaerobic filter tank 104 and second anaerobic filter tank 1
06 is partitioned by a vertical partition wall 109. Partition wall 10
At the upper part of 9, an advection port 110 penetrating the partition wall 109 is formed. Then, the advection pipe 11 is connected to the advection port 110.
1 is fitted. The lower end of the advection tube 111 is located below the anaerobic filter bed 105 of the first anaerobic filter tank 104,
Also serves as a cleaning port.

【００４２】第２嫌気濾床槽１０６と次の生物膜濾過槽
１０８とは垂直な隔壁１１２で仕切られている。隔壁１
１２の上部には、隔壁１１２を貫通する移流口１１３が
開口形成されている。そして、移流口１１３に移流管１
１４が嵌められている。第１嫌気濾床槽１０４から移流
管１１１を通って第２嫌気濾床槽１０６へ移流してきた
汚水は、嫌気濾床１０７を下降流で通過した後、移流管
１１４を通って次の生物膜濾過槽１０８へ送り込まれ
る。The second anaerobic filter bed tank 106 and the next biofilm filtration tank 108 are separated by a vertical partition 112. Partition wall 1
In the upper part of 12, an advection port 113 penetrating the partition wall 112 is formed. Then, the convection pipe 1 is inserted into the convection port 113.
14 is fitted. The sewage that has been transferred from the first anaerobic filter bed tank 104 to the second anaerobic filter tank 106 through the advection tube 111 passes through the anaerobic filter bed 107 in a downward flow, and then passes through the advection tube 114 to the next biofilm. It is sent to the filtration tank 108.

【００４３】第２嫌気濾床槽１０６に設けられた嫌気濾
床１０７により、ある程度のＳＳが捕捉される。捕捉さ
れたＳＳは、徐々に嫌気分解されて溶解性のものになっ
ていったり、第２嫌気濾床槽１０６の底に汚泥として貯
留されたりする。また、嫌気濾床１０７では有機性の窒
素がアンモニア性の窒素に嫌気分解される。A certain amount of SS is captured by the anaerobic filter bed 107 provided in the second anaerobic filter tank 106. The trapped SS is gradually anaerobically decomposed and becomes soluble, or is stored as sludge at the bottom of the second anaerobic filter tank 106. In the anaerobic filter bed 107, organic nitrogen is anaerobically decomposed into ammonia nitrogen.

【００４４】生物膜濾過槽１０８には、好気性微生物の
濾床である好気濾床１１５が設けられており、好気濾床
１１５に好気性微生物を棲息させることで好気処理を行
うようにされている。生物膜濾過槽１０８の底部付近に
は、曝気装置の曝気管１１６が横設状態に配されてい
る。曝気装置は、曝気管１１６から空気を吹き出すこと
で、生物膜濾過槽１０８の好気濾床１１５に棲息する好
気性微生物に酸素を供給する。The biofilm filtration tank 108 is provided with an aerobic filter bed 115 which is a filter bed for aerobic microorganisms. The aerobic filter bed 115 is provided with aerobic microorganisms so that aerobic treatment is performed. Has been. In the vicinity of the bottom of the biofilm filtration tank 108, an aeration tube 116 of an aeration device is disposed in a horizontal state. The aeration apparatus supplies oxygen to the aerobic microorganisms living in the aerobic filter bed 115 of the biofilm filtration tank 108 by blowing out air from the aeration pipe 116.

【００４５】１１７は生物膜濾過槽１０８に隣接して区
画形成された次の処理水槽である。処理水槽１１７で
は、生物膜濾過槽１０８で好気処理され、濾過されて移
流してきた処理水を静置貯蔵する。Reference numeral 117 denotes a next treatment water tank formed adjacent to the biofilm filtration tank 108. In the treated water tank 117, the treated water that has undergone aerobic treatment in the biofilm filtration tank 108, and has been filtered and advected, is stored in a stationary state.

【００４６】１１８は処理水槽１１７の上部に区画形成
された消毒槽である。消毒槽１１８は、処理水槽１１７
で処理された後の上澄み水を消毒処理して、放流管１０
３から外部へ排出するようにされている。Reference numeral 118 denotes a disinfecting tank formed above the treated water tank 117. The disinfection tank 118 includes a treatment water tank 117.
The supernatant water after disinfection is disinfected, and discharged
3 to the outside.

【００４７】生物膜濾過槽１０８と次の処理水槽１１７
との間には垂直な隔壁１１９で仕切られている。隔壁１
１９の上部には、隔壁１１９を貫通する移流口１２０が
開口形成されている。そして、移流口１２０に移流管１
２１が嵌められている。第２嫌気濾床槽１０６から移流
管１１４を通って生物膜濾過槽１０８へ移流してきた汚
水は、好気濾床１１５を下降流で通過した後、移流管１
２１を通って次の処理水槽１１７へ送り込まれる。The biofilm filtration tank 108 and the next treatment water tank 117
Are separated by a vertical partition wall 119. Partition wall 1
At the upper part of 19, an advection port 120 penetrating the partition wall 119 is formed. Then, the convection pipe 1 is inserted into the convection port 120.
21 is fitted. The sewage that has flowed from the second anaerobic filter bed tank 106 to the biofilm filtration tank 108 through the advection tube 114 passes through the aerobic filter bed 115 in a descending flow, and then flows through the advection tube 1.
Through 21, it is sent to the next treated water tank 117.

【００４８】処理水槽１１７の上部から第１嫌気濾床槽
１０４の上部にかけて、処理水中の上澄み水を返送する
ための返送管１２２が配されている。返送管１２２は、
汚水処理装置Ｄ1 の導入管４に接続されている。そし
て、処理水槽１１７からリフト管１２３により汲み上げ
られた上澄み水は、返送管１２２を経て汚水処理装置Ｄ
1 に送られてリン除去及び窒素除去が施され後に、第１
嫌気濾床槽１０４へ戻される。From the upper part of the treatment water tank 117, a first anaerobic filter bed tank
Return the supernatant water of the treated water to the top of 104
Return pipe 122 is provided. The return pipe 122
Sewage treatment equipment D1Are connected to the introduction pipe 4. Soshi
And pumped up from the treated water tank 117 by the lift pipe 123
The obtained supernatant water is passed through a return pipe 122 to the sewage treatment apparatus D.
1After being subjected to phosphorus removal and nitrogen removal,
It is returned to the anaerobic filter tank 104.

【００４９】実施の形態２ 図５に示すように、本発明の実施の形態２に係る汚水処
理装置Ｄ2 は、１つの汚水収納槽３１と、四組の電極２
・３と、各組の電極２・３に電流を供給するための直流
電源１１と、この電源１１を制御するための制御部（図
示略）と、４個の電極ケース３２とを備えてなる。Embodiment 2 As shown in FIG. 5, a sewage treatment apparatus D 2 according to Embodiment 2 of the present invention includes one sewage storage tank 31 and four sets of electrodes 2.
3, a DC power supply 11 for supplying a current to each pair of electrodes 2.3, a control unit (not shown) for controlling the power supply 11, and four electrode cases 32. .

【００５０】電極２・３の下半部は、汚水処理装置Ｄ1
におけるのと同様に、ポリプロピレン樹脂製の多孔質性
網状体からなる担体９・１０で覆われている。これらの
担体９・１０は、汚水処理装置Ｄ1 におけるのとは異な
り、電極ケース３２の底面に載置されている。The lower half of the electrodes 2 and 3 is a sewage treatment device D 1
As in the case of the above, the carrier is covered with carriers 9 and 10 made of a porous network made of polypropylene resin. These carriers 9-10, unlike in the sewage treatment apparatus D 1, is mounted on the bottom surface of the electrode housing 32.

【００５１】汚水収納槽３１は、平面形状がほぼ長方形
であってテーパ状の底壁を有する箱からなり、屎尿廃水
や生活廃水などの処理すべき汚水が収納される。汚水収
納槽３１の一方側壁の上部には、汚水導入口３１ａ及び
汚水排出口３１ｂが形成されている。また、汚水収納槽
３１の底には、左右方向へ延びる２本の底部位置決め棒
３５が設けられている。そして、これらの底部位置決め
棒３５の内側には、縦方向に延びる合計６本の左右位置
決め棒３６が設けられている。The sewage storage tank 31 is formed of a box having a substantially rectangular planar shape and a tapered bottom wall, and stores sewage to be treated such as human wastewater or domestic wastewater. A sewage inlet 31a and a sewage outlet 31b are formed in an upper portion of one side wall of the sewage storage tank 31. Further, two bottom positioning rods 35 extending in the left-right direction are provided at the bottom of the sewage storage tank 31. A total of six left and right positioning bars 36 extending in the vertical direction are provided inside the bottom positioning bars 35.

【００５２】図６に示すように、電極ケース３２は、平
面形状が長方形の箱状のものであり、ポリプロピレン樹
脂製である。電極ケース３２の左右両側壁は、隣り合う
電極ケース３２どうしを仕切るための電気絶縁性仕切板
３２ａにされている。電極ケース３２の前後両端は、と
もに長方形の汚水流入口３２ｂ及び汚水流出口３２ｃに
されている。As shown in FIG. 6, the electrode case 32 has a rectangular box shape in plan view and is made of polypropylene resin. The left and right side walls of the electrode case 32 are formed as electrically insulating partition plates 32a for separating adjacent electrode cases 32 from each other. Both the front and rear ends of the electrode case 32 are rectangular sewage inlet 32b and sewage outlet 32c.

【００５３】また、電極ケース３２の上下両面は、周縁
部を残して中央が長方形に切り欠かれて、それぞれ電極
着脱口３２ｄ及び曝気口３２ｅにされている。さらに、
電極ケース３２の左右幅（２つの仕切板３２ａの外面ど
うしの間隔）は、汚水収納槽３１内における、隣り合う
２本の左右位置決め棒３６どうしの間隔にほぼ等しくさ
れている。なお、電極ケース３２の上面における２つの
円形孔３２ｆは、スペーサ５を電極ケース３２の上面に
ネジ止めするためのものである。The upper and lower surfaces of the electrode case 32 are notched in a rectangular shape at the center except for the peripheral portion, and are provided with an electrode attaching / detaching port 32d and an aeration port 32e, respectively. further,
The left and right width of the electrode case 32 (the interval between the outer surfaces of the two partition plates 32a) is substantially equal to the interval between two adjacent left and right positioning rods 36 in the sewage storage tank 31. The two circular holes 32f on the upper surface of the electrode case 32 are for screwing the spacer 5 to the upper surface of the electrode case 32.

【００５４】このように構成された電極ケース３２は、
汚水収納槽３１内に取り出し可能に配される。すなわ
ち、槽内に設けられた底部位置決め棒３５及び左右位置
決め棒３６により定位置にゆるやかに固定される。な
お、図５において３７は汚泥引抜バルブである。汚水収
納槽１に溜まった汚泥は、汚泥引抜バルブ３７を開放す
ることにより引き抜かれる。The electrode case 32 thus configured is
It is arranged so as to be able to be taken out in the sewage storage tank 31. That is, it is loosely fixed to a fixed position by the bottom positioning rod 35 and the left and right positioning rods 36 provided in the tank. In FIG. 5, reference numeral 37 denotes a sludge extraction valve. The sludge accumulated in the sewage storage tank 1 is extracted by opening the sludge extraction valve 37.

【００５５】この汚水処理装置Ｄ2 の他の部分（制御部
など）の構成は、汚水処理装置Ｄ1のそれと実質的に同
様であるので、詳細な説明は省略する。The other parts of the sewage treatment apparatus D 2 (such as a control section) are substantially the same as those of the sewage treatment apparatus D 1 , and a detailed description thereof will be omitted.

【００５６】図７に示すように、汚水処理装置Ｄ2 は前
記と同じ小型合併処理浄化槽１０１に組み込まれてい
る。As shown in FIG. 7, the sewage treatment apparatus D 2 is incorporated in the same small-sized combined treatment / purification tank 101 as described above.

【００５７】返送管１２２は、汚水処理装置Ｄ2 の汚水
導入口３１ａに接続されている。そして、処理水槽１１
７からリフト管１２３により汲み上げられた上澄み水
は、返送管１２２を経て汚水処理装置Ｄ2 に送られてリ
ン酸除去及び窒素除去が施され後に、第１嫌気濾床槽１
０４へ戻される。[0057] return pipe 122 is connected to the sewage inlet 31a of the sewage treatment apparatus D 2. And the treatment water tank 11
The supernatant water pumped up by the lift tube 123 to 7, after being sent to the sewage treatment apparatus D 2 via a return pipe 122 phosphate removal and nitrogen removal is performed, the first anaerobic filter bed tank 1
Returned to 04.

【００５８】[0058]

【発明の効果】請求項１記載の発明によれば、汚水収納
槽と、この汚水収納槽に収納される汚水に少なくとも一
部が浸漬するように配され、その汚水中のリン酸を沈殿
除去するための鉄イオンまたはアルミニウムイオンを電
気分解により溶出する少なくとも一組の電極と、これら
の電極に電解用電流を供給するための電源と、この電源
を制御するための制御部とを備え、各電極の少なくとも
一部が、汚水中で脱窒反応に関与する微生物を生息させ
るための担体で覆われており、制御部が定期的に電極の
極性を反転させることで、極性がアノードになった電極
側でリン酸の除去が行われ、極性がカソードになった電
極側でその担体における微生物に基づく脱窒反応による
窒素の除去が行われる。したがって、リン酸除去と窒素
除去とを併せて行うことができる。According to the first aspect of the present invention, the sewage storage tank and the sewage stored in the sewage storage tank are disposed so as to be at least partially immersed in the sewage, and phosphoric acid in the sewage is removed by precipitation. At least one set of electrodes for eluting iron ions or aluminum ions by electrolysis, a power supply for supplying a current for electrolysis to these electrodes, and a control unit for controlling the power supply. At least a part of the electrode is covered with a carrier for inhabiting microorganisms involved in the denitrification reaction in the sewage, and the polarity is changed to the anode by the control unit periodically inverting the polarity of the electrode. The removal of phosphoric acid is performed on the electrode side, and the removal of nitrogen is performed on the electrode side whose polarity has become the cathode by a denitrification reaction based on microorganisms in the carrier. Therefore, phosphoric acid removal and nitrogen removal can be performed simultaneously.

【００５９】請求項２記載の発明によれば、担体が、プ
ラスチック製、炭素繊維製または焼結セラミック製の多
孔質性網状体からなり、各電極の上縁から吊り下げら
れ、または一組の電極を収納するための電極ケースの底
面に載置されている。したがって、請求項１記載の発明
が奏する前記効果を簡単な構成により確実に確保するこ
とが可能になる。According to the second aspect of the present invention, the carrier is made of a porous mesh made of plastic, carbon fiber, or sintered ceramic, and is suspended from the upper edge of each electrode, or a set of It is placed on the bottom of the electrode case for storing the electrodes. Therefore, it is possible to reliably ensure the above-mentioned effects achieved by the first aspect of the invention with a simple configuration.

【００６０】請求項３記載の発明によれば、一組の電極
どうしをアノード側とカソード側とに仕切るための仕切
板と、各電極に曝気を施すための曝気装置とをさらに備
え、制御部がさらに、曝気装置を制御して、極性がアノ
ードになった電極にのみ曝気を施すように構成されてい
る。したがって、請求項１記載の発明が奏する前記効果
に加えて、曝気装置によりアノード側の電極にのみ曝気
を施してアノード側におけるリン酸除去反応を促進する
とともにその電極の洗浄を行い、一方、カソード側の電
極を還元雰囲気に置くことができる。According to the third aspect of the present invention, the control unit further comprises a partition plate for partitioning the set of electrodes into an anode side and a cathode side, and an aeration device for aerating each electrode. However, the aeration device is controlled so that aeration is performed only on the electrode whose polarity is the anode. Therefore, in addition to the effect of the invention as claimed in claim 1, in addition to the aeration device, only the anode-side electrode is aerated to promote the phosphoric acid removal reaction on the anode side and to clean the electrode, while the cathode is cleaned. Side electrode can be placed in a reducing atmosphere.

【００６１】請求項４記載の発明によれば、汚水収納槽
へ汚水を導入するための導入管をさらに備え、汚水収納
槽における仕切板が、導入管からの汚水を仕切板の一端
を経て汚水収納槽へ流入させ仕切板の一方側面もしくは
他方側面に沿って他端へ導き、次いで他端を回ってその
他方側面もしくは一方側面に沿って一端を経て流出させ
るように配され、導入管と汚水収納槽との間に、導入管
からの汚水を仕切板の一方側面及び他方側面のうちのい
ずれかに沿って導くように切り換える流路切換バルブが
さらに設けられ、制御部がさらに、流路切換バルブを制
御して、導入管からの汚水を極性がカソードになった電
極のある仕切板の側面へまず流入させるように構成され
ている。したがって、汚水収納槽へ流入した汚水はその
後、仕切板の他端を回ってアノード電極のある仕切板の
側面の方へ進むので、溶存酸素濃度の比較的少ないカソ
ード側で前記脱窒反応を充分に行った後に、曝気により
溶存酸素濃度の上昇したアノード側で前記凝集反応と電
極の洗浄とを行うことが可能になる。According to the fourth aspect of the present invention, the apparatus further includes an introduction pipe for introducing sewage into the sewage storage tank, and the partition plate in the sewage storage tank transfers sewage from the introduction pipe to the sewage through one end of the partition plate. It is arranged so as to flow into the storage tank, guide it to the other end along one side or the other side of the partition plate, and then flow around the other end and flow out through one end along the other side or the one side. A flow path switching valve is further provided between the storage tank and the storage tank so as to guide sewage from the introduction pipe along one of the one side surface and the other side surface of the partition plate. The valve is controlled so that sewage from the inlet pipe flows first into the side surface of the partition plate having the electrode whose polarity is the cathode. Therefore, since the sewage flowing into the sewage storage tank goes around the other end of the partition plate toward the side surface of the partition plate having the anode electrode, the denitrification reaction is sufficiently performed on the cathode side having a relatively low dissolved oxygen concentration. After the above, the agglutination reaction and the electrode washing can be performed on the anode side where the dissolved oxygen concentration is increased by aeration.

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

【図１】本発明の実施の形態１に係る汚水処理装置の内
部を側面から見た構成説明図である。FIG. 1 is a configuration explanatory view of the inside of a sewage treatment apparatus according to Embodiment 1 of the present invention as viewed from a side.

【図２】図１の汚水処理装置を上面から見た構成説明図
である。FIG. 2 is a configuration explanatory view of the sewage treatment apparatus of FIG. 1 as viewed from above.

【図３】図１の汚水処理装置の構成部材である電極及び
担体の斜視図である。FIG. 3 is a perspective view of an electrode and a carrier, which are components of the sewage treatment apparatus of FIG.

【図４】図１の汚水処理装置が組み込まれた合併処理浄
化槽の内部を正面から見た拡大構成説明図である。FIG. 4 is an enlarged configuration explanatory view of the inside of the merged treatment septic tank incorporating the sewage treatment apparatus of FIG. 1 as viewed from the front.

【図５】本発明の実施の形態２に係る汚水処理装置の分
解斜視図である。FIG. 5 is an exploded perspective view of a sewage treatment apparatus according to Embodiment 2 of the present invention.

【図６】図５の汚水処理装置の構成部材である電極及び
電極ケースの斜視図である。6 is a perspective view of an electrode and an electrode case, which are components of the sewage treatment apparatus of FIG.

【図７】図５の汚水処理装置が組み込まれた合併処理浄
化槽の内部を正面から見た拡大構成説明図である。FIG. 7 is an enlarged configuration explanatory view of the inside of a combined treatment septic tank incorporating the sewage treatment apparatus of FIG. 5 as viewed from the front.

【符号の説明】[Explanation of symbols]

１ 汚水収納槽 ２ 電極 ３ 電極 ４ 導入管 ９ 担体 １０ 担体 １１ 電源 １２ 曝気管 １３ 曝気管 １４ 給気用ブロア １５ 給気切換用バルブ １６ 給気管 １７ 給気管 １８ 仕切板 １９ 流路切換バルブ ３１ 汚水収納槽 ３２ 電極ケース Reference Signs List 1 sewage storage tank 2 electrode 3 electrode 4 introduction pipe 9 carrier 10 carrier 11 power supply 12 aeration pipe 13 aeration pipe 14 air supply blower 15 air supply switching valve 16 air supply pipe 17 air supply pipe 18 partition plate 19 flow path switching valve 31 sewage Storage tank 32 Electrode case

フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｃ０２Ｆ 1/58 Ｃ０２Ｆ 3/10 Ｚ ４Ｄ０６１ 3/00 1/46 １０２ ４Ｄ０６２ 3/10 Ｆターム(参考） 4D003 AA01 AA17 EA16 EA24 EA25 EA30 4D015 BA04 CA18 DA02 DA12 4D027 AB14 CA01 4D038 AA08 AB12 AB44 BB18 BB19 4D040 BB52 BB72 BB82 BB91 4D061 AA08 AB09 BA06 CA14 CA15 4D062 BA04 CA18 DA02 DA12 FA26Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) C02F 1/58 C02F 3/10 Z 4D061 3/00 1/46 102 4D062 3/10 F term (reference) 4D003 AA01 AA17 EA16 EA24 EA25 EA30 4D015 BA04 CA18 DA02 DA12 4D027 AB14 CA01 4D038 AA08 AB12 AB44 BB18 BB19 4D040 BB52 BB72 BB82 BB91 4D061 AA08 AB09 BA06 CA14 CA15 4D062 BA04 CA18 DA02 DA12 FA26

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 汚水収納槽と、この汚水収納槽に収納さ
れる汚水に少なくとも一部が浸漬するように配され、そ
の汚水中のリン酸を沈殿除去するための鉄イオンまたは
アルミニウムイオンを電気分解により溶出する少なくと
も一組の電極と、これらの電極に電解用電流を供給する
ための電源と、この電源を制御するための制御部とを備
え、 各電極の少なくとも一部が、汚水中で脱窒反応に関与す
る微生物を生息させるための担体で覆われており、 制御部が定期的に電極の極性を反転させることで、極性
がアノードになった電極側でリン酸の除去が行われ、極
性がカソードになった電極側でその担体における微生物
に基づく脱窒反応による窒素の除去が行われることを特
徴とする汚水処理装置。1. A sewage storage tank, and at least a part of the sewage stored in the sewage storage tank is immersed in the sewage storage tank. At least one set of electrodes eluted by decomposition, a power supply for supplying an electrolysis current to these electrodes, and a control unit for controlling this power supply, at least a part of each electrode, It is covered with a carrier for inhabiting microorganisms involved in the denitrification reaction, and the control unit periodically inverts the polarity of the electrode, so that phosphoric acid is removed on the side of the electrode whose polarity has become the anode. A sewage treatment apparatus, wherein nitrogen is removed by a denitrification reaction based on microorganisms in a carrier of the electrode whose polarity is a cathode. 【請求項２】 担体が、プラスチック製、炭素繊維製ま
たは焼結セラミック製の多孔質性網状体からなり、各電
極の上縁から吊り下げられ、または一組の電極を収納す
るための電極ケースの底面に載置されている請求項１記
載の汚水処理装置。2. An electrode case in which the carrier is made of a porous network made of plastic, carbon fiber or sintered ceramic, is suspended from the upper edge of each electrode, or accommodates a set of electrodes. The sewage treatment apparatus according to claim 1, which is mounted on a bottom surface of the sewage treatment apparatus. 【請求項３】 一組の電極どうしをアノード側とカソー
ド側とに仕切るための仕切板と、各電極に曝気を施すた
めの曝気装置とをさらに備え、 制御部がさらに、曝気装置を制御して、極性がアノード
になった電極にのみ曝気を施す請求項１または２記載の
汚水処理装置。3. The apparatus further comprises a partition plate for partitioning a pair of electrodes into an anode side and a cathode side, and an aerator for aerating each electrode, wherein the control unit further controls the aerator. The sewage treatment apparatus according to claim 1, wherein aeration is performed only on the electrode whose polarity is the anode. 【請求項４】 汚水収納槽へ汚水を導入するための導入
管をさらに備え、 汚水収納槽における仕切板が、導入管からの汚水を仕切
板の一端を経て汚水収納槽へ流入させ仕切板の一方側面
もしくは他方側面に沿って他端へ導き、次いで他端を回
ってその他方側面もしくは一方側面に沿って一端を経て
流出させるように配され、 導入管と汚水収納槽との間に、導入管からの汚水を仕切
板の一方側面及び他方側面のうちのいずれかに沿って導
くように切り換える流路切換バルブがさらに設けられ、 制御部がさらに、流路切換バルブを制御して、導入管か
らの汚水を極性がカソードになった電極のある仕切板の
側面へまず流入させる請求項３記載の汚水処理装置。4. A partition plate in the sewage storage tank further comprising an introduction pipe for introducing sewage into the sewage storage tank, wherein the partition plate in the sewage storage tank flows sewage from the introduction pipe into the sewage storage tank through one end of the partition plate. It is arranged to guide to the other end along one side or the other side, and then to flow around the other end and to flow out through one end along the other side or the one side. There is further provided a flow path switching valve for switching sewage from the pipe so as to be guided along one of the one side surface and the other side surface of the partition plate, and the control unit further controls the flow path switching valve so that the introduction pipe 4. The sewage treatment apparatus according to claim 3, wherein the sewage from the sewage is first introduced into the side surface of the partition plate having the electrode whose polarity is the cathode.
JP22461898A 1998-08-07 1998-08-07 Sewage treatment apparatus Pending JP2000051894A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP22461898A JP2000051894A (en) 1998-08-07 1998-08-07 Sewage treatment apparatus
TW88110211A TW475921B (en) 1998-08-07 1999-06-17 Sewage treatment apparatus
KR1019990027386A KR100303234B1 (en) 1998-08-07 1999-07-08 Sewage disposal appratus
CN99110550A CN1096424C (en) 1998-08-07 1999-07-29 Sewage treatment installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22461898A JP2000051894A (en) 1998-08-07 1998-08-07 Sewage treatment apparatus

Publications (1)

Publication Number Publication Date
JP2000051894A true JP2000051894A (en) 2000-02-22

Family

ID=16816542

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22461898A Pending JP2000051894A (en) 1998-08-07 1998-08-07 Sewage treatment apparatus

Country Status (4)

Country Link
JP (1) JP2000051894A (en)
KR (1) KR100303234B1 (en)
CN (1) CN1096424C (en)
TW (1) TW475921B (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010035183A (en) * 2001-01-12 2001-05-07 박덕영 Pathway circulating treatment system for waste water by electrocoagulation and biofilteration
EP1203753A1 (en) * 2000-11-01 2002-05-08 Sanyo Electric Co. Ltd Waste water treatment method and apparatus
JP2002273429A (en) * 2001-03-14 2002-09-24 Sanyo Electric Co Ltd Electrolytic cell for sewage treatment equipment
US7011750B2 (en) * 2001-09-04 2006-03-14 Sanyo Electric Co., Ltd. Water treatment device
CN100410187C (en) * 2006-10-23 2008-08-13 哈尔滨工业大学 Composite microelectrolytic/biomembrane reaction apparatus and its sewage treating method
WO2009104888A2 (en) * 2008-02-21 2009-08-27 재단법인서울대학교산학협력재단 Biocatalytic electrochemical three-dimensional electrode
US20100276363A1 (en) * 2007-11-16 2010-11-04 Garry Hoyland Wastewater treatment process and plant comprising controlling the dissolved oxygen concentration
DE102009026179A1 (en) * 2009-07-15 2011-01-27 Haas, Rüdiger, Dipl.-Geol. Bioelectrolytic denitrification
KR101125143B1 (en) * 2009-07-10 2012-03-19 주식회사 한국한신테크노 Industrial waste, waste water Sludge, Garbage disposal machine
KR101269662B1 (en) 2013-02-05 2013-05-30 주식회사 티피엘 Electrolysis equiqment for sewage treatment
JP2015033693A (en) * 2009-06-16 2015-02-19 カンブリアン イノベーションズ インコーポレイデッド Systems and devices for treating and monitoring water, wastewater and other biodegradable matter
US9551685B2 (en) 2009-12-08 2017-01-24 Cambrian Innovation Inc. Microbially-based sensors for environmental monitoring
US9963790B2 (en) 2010-10-19 2018-05-08 Matthew Silver Bio-electrochemical systems
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
CN112390471A (en) * 2020-11-17 2021-02-23 浙江工商大学 Dynamic membrane reactor with nitrogen and phosphorus removal function and operation method
US11150213B2 (en) 2011-06-14 2021-10-19 Cambrian Innovation Inc. Biological oxygen demand sensors

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100421515B1 (en) * 1999-08-25 2004-03-11 산요덴키가부시키가이샤 device for treatment of sewage
KR20020018572A (en) * 2000-09-02 2002-03-08 남기관 Electro coagulation and Bio-wrinkled circulation nutrients removal system
JP3563033B2 (en) * 2000-12-20 2004-09-08 日東工器株式会社 Septic tank blower
KR100456303B1 (en) * 2001-12-21 2004-11-09 주식회사 이바이오텍 Reactor for the treatment of dyeing waste water by electrochemical oxidation-reduction reaction and method for the treatment of dyeing waste water using the same
KR100481445B1 (en) * 2001-12-21 2005-04-07 주식회사 이바이오텍 Apparatus for treatment of waste water
CN100345775C (en) * 2005-10-13 2007-10-31 复旦大学 Urban sewage treatment of anaerobic biological-low voltage electric field oxidizing coupling system
EP2168921A1 (en) * 2008-09-30 2010-03-31 Sanyo Electric Co., Ltd. Water treatment apparatus
KR101232897B1 (en) * 2011-06-08 2013-02-13 (주)에이치앤텍 Method and apparatus of electrocoagulation treatment with porous partinoning plate for soluble phosphorus removal in sewage and wastewater
KR101258669B1 (en) * 2011-10-04 2013-04-26 정재영 Electrical coagulation unit with a structure of the protective cover non-consumable electrode plate
CN102417231B (en) * 2011-10-24 2013-06-05 沈阳建筑大学 Adjustable multi-electrode low-voltage electricity-organism reactor
CN111905884B (en) * 2018-08-28 2021-07-27 南京溧水高新产业股权投资有限公司 Shearing uncapping cleaning machine and method for uncapping three-year twenty-head pseudo-ginseng
CN110240354A (en) * 2019-05-28 2019-09-17 集美大学 A kind of intensive style modular combination aquaculture tail water treatment system
CN110240257A (en) * 2019-05-28 2019-09-17 集美大学 A kind of high-efficient denitrification and dephosphorization system handling aquaculture tail water
CN113121008A (en) * 2019-12-30 2021-07-16 吉林建筑大学 Tubular brush type biological filler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10192869A (en) * 1997-01-07 1998-07-28 Sanyo Electric Co Ltd Wastewater treatment apparatus
CN1188150A (en) * 1997-01-14 1998-07-22 筒中塑料工业股份公司 Microbial fixed carrier for fluidized bed

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1203753A1 (en) * 2000-11-01 2002-05-08 Sanyo Electric Co. Ltd Waste water treatment method and apparatus
US6645366B2 (en) 2000-11-01 2003-11-11 Sanyo Electric Co., Ltd. Waste water treatment device
KR20010035183A (en) * 2001-01-12 2001-05-07 박덕영 Pathway circulating treatment system for waste water by electrocoagulation and biofilteration
JP2002273429A (en) * 2001-03-14 2002-09-24 Sanyo Electric Co Ltd Electrolytic cell for sewage treatment equipment
JP4548955B2 (en) * 2001-03-14 2010-09-22 三洋電機株式会社 Electrolyzer for sewage treatment equipment
US7011750B2 (en) * 2001-09-04 2006-03-14 Sanyo Electric Co., Ltd. Water treatment device
CN100410187C (en) * 2006-10-23 2008-08-13 哈尔滨工业大学 Composite microelectrolytic/biomembrane reaction apparatus and its sewage treating method
US8784658B2 (en) * 2007-11-16 2014-07-22 Bluewater Bio Technologies Limited Wastewater treatment process and plant comprising controlling the dissolved oxygen concentration
US20100276363A1 (en) * 2007-11-16 2010-11-04 Garry Hoyland Wastewater treatment process and plant comprising controlling the dissolved oxygen concentration
WO2009104888A2 (en) * 2008-02-21 2009-08-27 재단법인서울대학교산학협력재단 Biocatalytic electrochemical three-dimensional electrode
WO2009104888A3 (en) * 2008-02-21 2009-12-10 재단법인서울대학교산학협력재단 Biocatalytic electrochemical three-dimensional electrode
KR100943892B1 (en) 2008-02-21 2010-02-24 재단법인서울대학교산학협력재단 3-Dimensional Bioelectrochemical Electrode
EP3284829A1 (en) * 2009-06-16 2018-02-21 Cambrian Innovation, Inc. Systems and devices for treating and monitoring water, wastewater and other biodegradable matter
JP2015033693A (en) * 2009-06-16 2015-02-19 カンブリアン イノベーションズ インコーポレイデッド Systems and devices for treating and monitoring water, wastewater and other biodegradable matter
US9776897B2 (en) 2009-06-16 2017-10-03 Matthew Silver Systems and devices for treating water, wastewater and other biodegradable matter
US11708284B2 (en) 2009-06-16 2023-07-25 Cambrian Innovation, Inc. Systems and devices for treating and monitoring water, wastewater and other biodegradable matter
KR101125143B1 (en) * 2009-07-10 2012-03-19 주식회사 한국한신테크노 Industrial waste, waste water Sludge, Garbage disposal machine
DE102009026179A1 (en) * 2009-07-15 2011-01-27 Haas, Rüdiger, Dipl.-Geol. Bioelectrolytic denitrification
US9551685B2 (en) 2009-12-08 2017-01-24 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
US9963790B2 (en) 2010-10-19 2018-05-08 Matthew Silver Bio-electrochemical systems
US11150213B2 (en) 2011-06-14 2021-10-19 Cambrian Innovation Inc. Biological oxygen demand sensors
KR101269662B1 (en) 2013-02-05 2013-05-30 주식회사 티피엘 Electrolysis equiqment for sewage treatment
CN112390471A (en) * 2020-11-17 2021-02-23 浙江工商大学 Dynamic membrane reactor with nitrogen and phosphorus removal function and operation method

Also Published As

Publication number Publication date
CN1096424C (en) 2002-12-18
CN1245779A (en) 2000-03-01
KR20000016909A (en) 2000-03-25
KR100303234B1 (en) 2001-09-24
TW475921B (en) 2002-02-11

Similar Documents

Publication Publication Date Title
JP2000051894A (en) Sewage treatment apparatus
KR100421515B1 (en) device for treatment of sewage
JP2000176455A (en) Treatment device and method for phosphate ion- containing water
JP3948779B2 (en) Sewage treatment equipment
JP2001062463A (en) Sewage treatment equipment
JP3268385B2 (en) Phosphorus-containing organic wastewater treatment equipment
JPH11128946A (en) Wastewater treatment apparatus
JP3796033B2 (en) Sewage treatment equipment
JP2000015266A (en) Sewage treatment apparatus
JP3796032B2 (en) Sewage treatment equipment
JP3948823B2 (en) Sewage treatment equipment
JP3802186B2 (en) Sewage treatment equipment
JPH10192869A (en) Wastewater treatment apparatus
JPH11267685A (en) Sewage treating device
JP2001047051A (en) Water treatment device
KR100309999B1 (en) Water purifying apparatus
JP4026920B2 (en) Sewage treatment equipment
JPH11128926A (en) Sewage treatment apparatus
JPH11104683A (en) Waste water treating apparatus
JP2001179260A (en) Water treatment apparatus
JP3895860B2 (en) Sewage treatment equipment
JPH1190466A (en) Sewage treatment apparatus
JP4424829B2 (en) Wastewater treatment electrode and method for treating phosphate ion-containing wastewater using the electrode
JP2001162281A (en) Water treatment apparatus
JPH10258283A (en) Waste water treatment device