JP3272614B2 - Sewage treatment equipment - Google Patents
Sewage treatment equipmentInfo
- Publication number
- JP3272614B2 JP3272614B2 JP28261396A JP28261396A JP3272614B2 JP 3272614 B2 JP3272614 B2 JP 3272614B2 JP 28261396 A JP28261396 A JP 28261396A JP 28261396 A JP28261396 A JP 28261396A JP 3272614 B2 JP3272614 B2 JP 3272614B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- treatment
- ozone
- digestion
- sewage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y02W10/12—
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、消化処理槽、オゾ
ン処理槽、脱水機、沈澱処理槽を備えた汚水処理装置に
関する。The present invention relates to a sewage treatment apparatus provided with a digestion treatment tank, an ozone treatment tank, a dehydrator, and a sedimentation treatment tank.
【０００２】[0002]
【従来の技術】一般に汚水、特に食品加工工場等からの
有機性廃水は、嫌気・好気的消化法などの消化処理やオ
ゾン酸化処理により処理されている（例えば特開平７−
９６２８６号公報を参照）。図２はその一例であるが、
この例では、有機性廃水中の未分解・難生物分解性有機
物をオゾン発生機１０１で生成されたオゾンにより前段
オゾン処理槽１０３にてオゾン酸化し、その処理水を嫌
気性消化槽等の消化処理槽１０５にて発酵、ガス化す
る。そして、この消化処理槽１０５からの排出汚泥中に
残留する未分解・難生物分解性有機物を、再度オゾン発
生器１０１にて生成されたオゾンにより後段オゾン処理
槽１０７にて再度オゾン処理して無機化、排出してい
る。2. Description of the Related Art Generally, sewage, especially organic wastewater from food processing factories and the like, is treated by digestion treatment such as anaerobic / aerobic digestion or ozone oxidation treatment.
No. 96286). Figure 2 is an example,
In this example, undecomposed and hardly biodegradable organic matter in organic wastewater is ozone-oxidized in a pre-stage ozone treatment tank 103 by ozone generated by an ozone generator 101, and the treated water is digested in an anaerobic digestion tank or the like. Fermentation and gasification in the processing tank 105. Then, the undecomposed and hardly biodegradable organic matter remaining in the sludge discharged from the digestion treatment tank 105 is again subjected to ozone treatment in the latter-stage ozone treatment tank 107 with ozone generated by the ozone generator 101 to obtain an inorganic substance. And discharge.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
装置にあっては、未分解・難生物分解性有機物の分解に
あたり、汚水処理槽での処理前後にわたってオゾン酸化
処理しているため、２つのオゾン処理槽を必要とする。
そのため装置全体が大型化し、維持管理の手間およびコ
ストがかかるという問題があった。However, in the conventional apparatus, the ozone oxidation treatment is performed before and after the treatment in the sewage treatment tank when decomposing the undecomposed and hardly biodegradable organic matter, so that two ozone Requires a processing tank.
For this reason, there has been a problem that the entire apparatus becomes large, and labor and cost for maintenance are required.
【０００４】本発明は上記事情に鑑み、十分な汚水処理
機能を果たしながら、小型でかつ維持管理が容易な汚水
処理装置を提供することを目的とする。[0004] In view of the above circumstances, an object of the present invention is to provide a small-sized sewage treatment apparatus which is easy to maintain and maintain while performing a sufficient sewage treatment function.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
本発明においては、汚水を消化処理槽、オゾン処理槽に
て順に処理し、さらに脱水機、沈澱処理槽にて処理する
汚水処理装置であって、前記オゾン処理槽にて既に処理
された汚水の一部を前記消化処理槽へ返送するととも
に、前記脱水機から排出された脱離液または沈澱槽にて
抽出された余剰汚泥を再度前記オゾン処理槽に返送す
る。According to the present invention, there is provided a sewage treatment apparatus for treating sewage in a digestion tank and an ozone treatment tank in order, and further treating the sewage in a dehydrator and a sedimentation tank. And returning part of the sewage already treated in the ozone treatment tank to the digestion treatment tank.
In the desorbed liquid or settling tank discharged from the dehydrator,
Return the extracted excess sludge to the ozone treatment tank again
You .
【０００６】[0006]
【０００７】[0007]
【発明の実施の形態】以下、本発明を実施例に基づき詳
細に説明する。図１は本発明を適用した汚水処理装置の
概念図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments. FIG. 1 is a conceptual diagram of a sewage treatment apparatus to which the present invention is applied.
【０００８】本装置で処理される有機性廃水１は高濃度
原水槽３に貯留される。ここに貯留された有機性廃水
は、連続的に嫌気性消化槽５へと送られ、消化処理され
る。消化処理された有機性廃水は、一旦汚泥貯留槽７に
貯留された後、ここからオゾン処理槽９へ送られ酸化処
理される。酸化処理された有機性廃水の一部（例えば約
１／２）は脱水機１１へと送られ、他の一部１３は嫌気
性消化槽５の上流側へと返送される（図１中で白抜き矢
印図示）。返送された有機性廃水は高濃度原水槽３より
送られてくる未処理の有機性廃水と混合され、嫌気性消
化槽５、オゾン処理槽９により再度、消化・オゾン酸化
処理が施されることになる。[0008] Organic wastewater 1 to be treated by the present apparatus is stored in a high-concentration raw water tank 3. The organic wastewater stored here is continuously sent to the anaerobic digestion tank 5 and digested. The digested organic wastewater is temporarily stored in a sludge storage tank 7 and then sent to an ozone treatment tank 9 to be oxidized. A part (for example, about）) of the organic wastewater subjected to the oxidation treatment is sent to the dehydrator 11, and another part 13 is anaerobic.
It is returned to the upstream side of the sexual digester 5 (open arrows in FIG. 1). The returned organic wastewater is mixed with untreated organic wastewater sent from the high-concentration raw water tank 3, and is subjected to anaerobic consumption.
The digestion and ozone oxidation treatments are performed again by the gasification tank 5 and the ozone treatment tank 9.
【０００９】脱水機１１へ送られた処理水は脱水汚泥１
５と脱離液１７とに分離され、脱水汚泥１５は本装置か
ら排出されて焼却・埋め立て処理がなされる。また、脱
離液１７は原水調整槽１９、曝気槽２１、沈澱槽２３を
順に送られることにより処理水２５と余剰汚泥２７とに
分離され、最終処理水２５のみが本装置外へ排出される
が、この実施例では余剰汚泥２７が再び汚泥貯留槽７へ
と返送されている。The treated water sent to the dehydrator 11 is a dewatered sludge 1
The dewatered sludge 15 is separated from the dewatered sludge 15 and the desorbed liquid 17, and is incinerated and landfilled. Further, the desorbed liquid 17 is sent to the raw water adjusting tank 19, the aeration tank 21, and the sedimentation tank 23 in order to be separated into treated water 25 and excess sludge 27, and only the final treated water 25 is discharged out of the present apparatus. However, in this embodiment, the excess sludge 27 is returned to the sludge storage tank 7 again.
【００１０】上述したようにオゾン処理槽９にて処理さ
れた有機性廃水を再度嫌気性消化槽５へと返送している
が、一度オゾン酸化処理が施された有機性廃水中の未分
解・難分解性有機物はオゾン酸化処理前に比べて易分解
性となっているため、このように再度消化槽に返送する
ことにより消化処理が促進される。また、原水調整槽１
９・曝気槽２１・沈澱槽２３を通過させて抽出された余
剰汚泥２７を再度オゾン酸化槽９へ返送しているが、こ
の余剰汚泥２７中にも未分解・難分解性有機物が残留し
ているため、オゾン酸化槽９を再度通過させることで、
より確実に無機物への分解が行われる。なお、脱水機１
１から排出された脱水汚泥１５を同様に、オゾン酸化槽
９へ返送してもよい。[0010] As described above, the organic wastewater treated in the ozone treatment tank 9 is returned to the anaerobic digestion tank 5 again. Since the hardly decomposable organic matter is more easily decomposed than before the ozone oxidation treatment, the digestion treatment is promoted by returning it to the digestion tank again. In addition, raw water adjustment tank 1
The excess sludge 27 extracted by passing through the aeration tank 21 and the sedimentation tank 23 is returned to the ozone oxidation tank 9 again, but undegraded and hardly decomposable organic substances remain in the excess sludge 27. Therefore, by passing through the ozone oxidation tank 9 again,
Decomposition into inorganic substances is performed more reliably. In addition, dehydrator 1
The dewatered sludge 15 discharged from 1 may be similarly returned to the ozone oxidation tank 9.
【００１１】[0011]
【発明の効果】以上説明したように、本発明によれば、
オゾン処理槽にて処理された汚水の一部が消化処理槽へ
返送され、前回の消化オゾン酸化処理では十分に処理さ
れなかった残留未分解・難分解性有機物が再度消化処理
されるため、従来、消化槽の前後にあった二つのオゾン
酸化処理槽のうち前段の処理槽を省略することができる
ので、装置全体を小型化することができ、維持管理も容
易に行うことができる。As described above, according to the present invention,
A part of the wastewater treated in the ozone treatment tank is returned to the digestion treatment tank, and the remaining undecomposed and hardly decomposable organic substances that were not sufficiently treated in the previous digestion ozone oxidation treatment are digested again. In addition, since the preceding treatment tank of the two ozone oxidation treatment tanks before and after the digestion tank can be omitted, the entire apparatus can be reduced in size and maintenance can be easily performed.
【図１】本発明による汚水処理装置の構成図である。FIG. 1 is a configuration diagram of a sewage treatment apparatus according to the present invention.
【図２】従来における消化・オゾン酸化処理の構成図で
ある。FIG. 2 is a configuration diagram of a conventional digestion / ozone oxidation treatment.
１，１３ 有機性廃水 ３ 高濃度原水槽 ５ 嫌気性消化槽 ７ 汚泥貯留槽 ９ オゾン処理槽 １１ 脱水機 １５ 脱水汚泥 １９ 原水調整槽 ２１ 曝気槽 ２３ 沈澱槽1,13 Organic wastewater 3 High concentration raw water tank 5 Anaerobic digestion tank 7 Sludge storage tank 9 Ozone treatment tank 11 Dehydrator 15 Dewatered sludge 19 Raw water adjustment tank 21 Aeration tank 23 Precipitation tank
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｃ０２Ｆ 1/78 ＺＡＢ Ｃ０２Ｆ 1/78 ＺＡＢ 3/28 3/28 Ａ (72)発明者 加藤 顕 東京都清瀬市下清戸４丁目640番地 株 式会社大林組技術研究所内 (56)参考文献 特開 昭52−131644（ＪＰ，Ａ) 特開 平７−96286（ＪＰ，Ａ) 特開 平７−96287（ＪＰ，Ａ) 特開 平７−284799（ＪＰ，Ａ) 特開 平５−104094（ＪＰ，Ａ)──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification code FI C02F 1/78 ZAB C02F 1/78 ZAB 3/28 3/28 A (72) Inventor Akira Kato 4-640 Shimoseito, Kiyose-shi, Tokyo Address: Obayashi Technical Research Institute (56) Reference: JP-A-52-131644 (JP, A) JP-A-7-96286 (JP, A) JP-A-7-96287 (JP, A) JP-A-7 -284799 (JP, A) JP-A-5-104094 (JP, A)
Claims (1)
に処理し、さらに脱水機、沈澱処理槽にて処理する汚水
処理装置であって、 前記オゾン処理槽にて既に処理された汚水の一部を前記
消化処理槽へ返送するとともに、前記脱水機から排出さ
れた脱離液または沈澱槽にて抽出された余剰汚泥を再度
前記オゾン処理槽に返送することを特徴とする汚水処理
装置。1. A sewage treatment apparatus for treating sewage in a digestion treatment tank and an ozonation treatment tank in order, and further treating the sewage in a dehydrator and a sedimentation treatment tank. A part is returned to the digestion tank and discharged from the dehydrator.
The excess sludge extracted in the desorbed liquid or sedimentation tank
A sewage treatment apparatus, wherein the wastewater is returned to the ozone treatment tank .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28261396A JP3272614B2 (en) | 1996-10-24 | 1996-10-24 | Sewage treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28261396A JP3272614B2 (en) | 1996-10-24 | 1996-10-24 | Sewage treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10118695A JPH10118695A (en) | 1998-05-12 |
| JP3272614B2 true JP3272614B2 (en) | 2002-04-08 |
Family
ID=17654806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28261396A Expired - Fee Related JP3272614B2 (en) | 1996-10-24 | 1996-10-24 | Sewage treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3272614B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002336891A (en) * | 2001-05-17 | 2002-11-26 | Kurabo Ind Ltd | Decomposition system for hardly decomposable material |
| KR100413593B1 (en) * | 2001-06-11 | 2003-12-31 | 금호산업주식회사 | System and Process for Ozone-Enhanced Reduction and Recycling of Wastewater Sludge |
| KR20030074966A (en) * | 2002-03-15 | 2003-09-22 | 주식회사 태영 | Process For Sludge Treatment Using Sludge Pretreatment And Membrane Bioreactor |
| KR100462943B1 (en) * | 2002-10-07 | 2004-12-23 | 주식회사 아이이아이 | The Waste disposal system |
| EP1522528B1 (en) * | 2003-10-07 | 2015-05-20 | VA TECH WABAG GmbH | Disintegration of anaerobically digested sewage sludge |
| JP5002572B2 (en) * | 2008-11-04 | 2012-08-15 | 株式会社東芝 | Method and apparatus for treating wastewater containing organic solids |
| NO334703B1 (en) * | 2011-04-06 | 2014-05-12 | Yara Int Asa | Process for treating industrial wastewater |
-
1996
- 1996-10-24 JP JP28261396A patent/JP3272614B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10118695A (en) | 1998-05-12 |
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