CN2613483Y - Sewage treatment apparatus adopting A2/O oxidation channels process - Google Patents
Sewage treatment apparatus adopting A2/O oxidation channels process Download PDFInfo
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- CN2613483Y CN2613483Y CN 03223656 CN03223656U CN2613483Y CN 2613483 Y CN2613483 Y CN 2613483Y CN 03223656 CN03223656 CN 03223656 CN 03223656 U CN03223656 U CN 03223656U CN 2613483 Y CN2613483 Y CN 2613483Y
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- Prior art keywords
- oxidation ditch
- tank
- pond
- anaerobic
- anoxybiotic
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Abstract
A sewage treatment device adopting the oxidation ditch anaerobic-anoxybiotic-aerobic biology denitrification phosphorous-removal technology comprises an anaerobic tank 1, an anoxybiotic tank 2, an oxidation ditch 3, and a sedimentation tank 4. The sedimentation tank and the oxidation ditch are combined to form a tank body which is of a concentric double wall cylinder shape. The oxidation ditch is arranged outside with the sedimentation tank arranged inside. The anoxybiotic tank is arranged outside the oxidation ditch and partial walls of the oxidation ditch are commonly used with the anoxybiotic tank. The anaerobic tank is arranged closely outside the anoxybiotic tank and partial walls of the anaerobic tank are commonly used with the anoxybiotic tank. An underwater propeller 5 and an aeration micropore 6 are arranged inside the oxidation ditch and the sedimentation tank is provided with a mud scraper 7. A backflow sludge pipe 9 and a backflow pump 8 are arranged from the sedimentation tank to the anaerobic tank. Because the walls are used commonly, the civil investment and occupying area are reduced with cutting down the space between tanks. The inward-outward forced directions of the commonly used walls are balanced, which reduces the thickness of walls and construction difficulties with saving connecting pipes between tanks. The effects of saving investment and reducing occupying area are achieved.
Description
Affiliated technical field
The utility model relates to a kind of waste disposal plant, especially relates to a kind of employing oxidation ditch anaerobic-anoxic-aerobic biological denitrification dephosphorization process and (is called for short A
2/ O oxidation ditch process) waste disposal plant.
Background technology
The dominance technology of China municipal sewage plant is A at present
2/ O oxidation ditch process, A
2/ O is the english abbreviation of Anaerobic-Anoxic-Oxic, and it is the abbreviation of anaerobic-anoxic-aerobic biological denitrification dephosphorization process.This arts demand has anaerobic pond, anoxic pond, oxidation ditch and settling tank, and oxidation ditch is the reactor of " with neither head nor tail " of sealing, is characterized in increasing contacting of microorganism and pollutent by stirring.A
2/ O oxidation ditch process is used widely with stability is high, effluent quality is good with its serviceability.A
2The flow process of/O oxidation ditch process is: waste water-grid-anaerobic-anoxic-oxidation ditch-settling tank, its weak point are because each pond is built separately, have accounted for the part land used between the Chi Yuchi; And owing to there is not shared body of wall, body of wall need be considered bidirectional stress, and therefore increases the thickness of body of wall; Also have the per 25 meters bodies of wall in square shaped pond need stay the expansion joint, cost is increased.As Chinese patent communique invention disclosed patent " a kind of novel urban sewage treatment process " (99112061.2), it allows sewage by grid and settling pit, in oxidation ditch, carry out bio-oxidation, entering settling pit then precipitates, enter contact tank at last, and, before the oxidation ditch oxidation, also to handle through strengthening preliminary sedimentation tank to wherein adding sterilizing agent.The mud that avales in the second pond is back in the oxidation ditch; Residual sludge reflux is to strengthening preliminary sedimentation tank.
The utility model content
The purpose of this utility model just is to provide a kind of employing A
2/ O oxidation ditch process, floor space are little, the waste disposal plant of reduced investment.
For achieving the above object, waste disposal plant of the present utility model comprises anaerobic pond, anoxic pond, oxidation ditch and settling tank, it is characterized in that: settling tank and oxidation ditch close and are concentric bilayer wall pond cylindraceous body, oxidation ditch is in the outside, settling tank is in the inboard, and oxidation ditch is outward an anoxic pond, and the wall segment and the anoxic pond of oxidation ditch are shared, near anoxic pond outer be anaerobic pond, the wall segment and the anoxic pond of anaerobic pond are shared.
The beneficial effects of the utility model are: because body of wall is shared, reduced construction investment and occupation of land, saved the vacant lot between the Chi Yuchi; And owing to be shared body of wall, be subjected to the force direction equilibrium inside and outside the body of wall, reduced the thickness and the difficulty of construction of body of wall; And saved the pipe connecting between the Chi Yuchi.Under different discharge of sewage situations, with traditional A
2/ O oxidation ditch treatment process is compared, and Steel Concrete and the floor space that can save see the following form:
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the utility model structure schematic top plan view.
Among the figure: 1 anaerobic pond, 2 anoxic pond, 3 oxidation ditches, 4 settling tanks, 5 underwater propellers, 6 aerating pores, 7 settling tank mud scrapers, 8 reflux pumps, 9 reflux sludge tubes.
Embodiment
From accompanying drawing, can see, the waste disposal plant of the employing A2/O oxidation ditch process of the utility model embodiment, by anaerobic pond 1, anoxic pond 2, oxidation ditch 3, settling tank 4 is formed, settling tank and oxidation ditch close and are concentric bilayer wall pond cylindraceous body, oxidation ditch is in the outside, settling tank is in the inboard, the shared internal layer body of wall 11 of oxidation ditch and settling tank, the orthogonal anoxic pond is built in outside the oxidation ditch, the wall segment of oxidation ditch constitutes orthogonal on one side, near anoxic pond outer be anaerobic pond, the anoxic pond that this is routine and anaerobic pond are the separated rectangle in a centre, the shared separation orthogonal of anaerobic pond and anoxic pond body of wall 10.
Underwater propeller 5, aerating pore 6 are arranged in the oxidation ditch; Settling tank has mud scraper 7, and reflux sludge tube 9 and reflux pump 8 are arranged from the settling tank to the anaerobic pond.During work, anaerobic pond mainly carries out the release of phosphorus, and the concentration of the phosphorus in the sewage is raise, and dissolved organic matter is absorbed by cell and makes BOD density loss in the sewage, removes a part of ammonia nitrogen because of synthesizing of cell in addition.Flow automatically to anoxic pond through the waste water after the anaerobic pond processing, denitrifying bacterium utilizes the organism in the sewage to be carbon source in the anoxic pond, with NO
3-N and NO
2-N is reduced to N
2Be discharged in the air, BOD concentration further descends.Enter the waste water of oxidation ditch from anoxic pond, under the state of oxygenation, organism is degraded by microbial biochemical, and phosphorus descends with speed faster under the effect of polyP bacteria.The settled mud of settling tank is back to anaerobic pond by mud return line under the effect of mud scraper, anaerobic pond and oxidation ditch are united and finished phosphorus removal functional.By the sewage behind the integrated apparatus, finished and traditional A
2The denitrogenation dephosphorizing that/O oxidation ditch sewage treatment technology is identical, the process of degradation of organic substances realized the purpose of purification of waste water, but reached reduced investment, take up an area of few effect.
Claims (3)
1, a kind of employing A
2The waste disposal plant of/O oxidation ditch process, by anaerobic pond (1), anoxic pond (2), oxidation ditch (3), settling tank (4) is formed, it is characterized in that: described settling tank (4) closes with oxidation ditch (3) and is concentric bilayer wall pond cylindraceous body, oxidation ditch (3) is in the outside, settling tank (4) is in the inboard, oxidation ditch (3) and the shared internal layer body of wall of settling tank (4) (11), anoxic pond is outside oxidation ditch (3), the wall segment of oxidation ditch (3) and anoxic pond (2) are shared, near anoxic pond (2) outer be anaerobic pond (1), the wall segment of anaerobic pond (1) and anoxic pond (2) are shared.
2, employing A according to claim 1
2The waste disposal plant of/O oxidation ditch process, it is characterized in that: described anoxic pond (2) closes with anaerobic pond (1) and is a middle separated rectangle form pool body, the wall segment of oxidation ditch (3) constitutes one side of rectangle form pool body, near oxidation ditch (3) be anoxic pond (2), anaerobic pond (1) and anoxic pond (2) shared separation orthogonal body of wall (10).
3, employing A according to claim 1
2The waste disposal plant of/O oxidation ditch process is characterized in that: underwater propeller (5), aerating pore (6) are arranged in the described oxidation ditch (3); Settling tank (4) has mud scraper (7), and reflux sludge tube (9) and reflux pump (8) are arranged from settling tank (4) to anaerobic pond (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223656 CN2613483Y (en) | 2003-02-19 | 2003-02-19 | Sewage treatment apparatus adopting A2/O oxidation channels process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03223656 CN2613483Y (en) | 2003-02-19 | 2003-02-19 | Sewage treatment apparatus adopting A2/O oxidation channels process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613483Y true CN2613483Y (en) | 2004-04-28 |
Family
ID=34245484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03223656 Expired - Lifetime CN2613483Y (en) | 2003-02-19 | 2003-02-19 | Sewage treatment apparatus adopting A2/O oxidation channels process |
Country Status (1)
| Country | Link |
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| CN (1) | CN2613483Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085177A1 (en) * | 2006-01-26 | 2007-08-02 | Yixing Lingzhi Environmental Co., Ltd. | High denitrification shared type orbal oxidation ditch |
| WO2007085176A1 (en) * | 2006-01-26 | 2007-08-02 | Yixing Lingzhi Environmental Co., Ltd. | An integrated orbal oxidation ditch |
| CN100503483C (en) * | 2007-02-16 | 2009-06-24 | 无锡市政设计研究院有限公司 | Highly effective dephosphorizing denitrification combined type sewage treatment equipment |
| CN101041509B (en) * | 2007-04-24 | 2010-05-19 | 上海亚同环保实业有限公司 | Circulation flow ring-shaped biological denitrification phosphorous removal technique |
| CN101381162B (en) * | 2008-09-27 | 2010-06-02 | 江苏凌志环保工程有限公司 | Technology for treating alcohol waste water combining integrated reverse A<2>O oxidation ditch and combined Orbal oxidation ditch |
| CN101973680A (en) * | 2010-10-28 | 2011-02-16 | 中山市环保实业发展有限公司 | Integrated A2-O oxidation ditch |
| CN102010106A (en) * | 2010-12-02 | 2011-04-13 | 福州城建设计研究院 | Integrated high-efficiency oxidation ditch and sewage treatment process thereof |
| CN102344222A (en) * | 2010-07-29 | 2012-02-08 | 上海市政工程设计研究总院 | Oxidation ditch process with functions of preventing and controlling activated sludge bulking |
| CN102503068A (en) * | 2011-10-18 | 2012-06-20 | 广东省工程技术研究所 | Biological water reducing method for low-organic-content sludge |
| CN102849834A (en) * | 2012-10-15 | 2013-01-02 | 华东理工大学 | Chemical reaction-precipitation integrated treatment method and chemical reaction-precipitation integrated treatment device |
| CN104984567A (en) * | 2015-07-13 | 2015-10-21 | 广西华鸿环保设备有限公司 | Mud-scraping device for ring-shaped pond |
| CN110436628A (en) * | 2019-08-15 | 2019-11-12 | 浙江海牛环境科技股份有限公司 | A kind of improved oxidation ditch biochemical wastewater treatment system |
| CN111875173A (en) * | 2020-08-05 | 2020-11-03 | 生态环境部华南环境科学研究所 | Novel rural domestic sewage integration processing system is consumed to high efficiency |
-
2003
- 2003-02-19 CN CN 03223656 patent/CN2613483Y/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007085177A1 (en) * | 2006-01-26 | 2007-08-02 | Yixing Lingzhi Environmental Co., Ltd. | High denitrification shared type orbal oxidation ditch |
| WO2007085176A1 (en) * | 2006-01-26 | 2007-08-02 | Yixing Lingzhi Environmental Co., Ltd. | An integrated orbal oxidation ditch |
| CN100335425C (en) * | 2006-01-26 | 2007-09-05 | 宜兴市凌志环保有限公司 | High denitrification shared type oxidation ditch |
| CN100503483C (en) * | 2007-02-16 | 2009-06-24 | 无锡市政设计研究院有限公司 | Highly effective dephosphorizing denitrification combined type sewage treatment equipment |
| CN101041509B (en) * | 2007-04-24 | 2010-05-19 | 上海亚同环保实业有限公司 | Circulation flow ring-shaped biological denitrification phosphorous removal technique |
| CN101381162B (en) * | 2008-09-27 | 2010-06-02 | 江苏凌志环保工程有限公司 | Technology for treating alcohol waste water combining integrated reverse A<2>O oxidation ditch and combined Orbal oxidation ditch |
| CN102344222A (en) * | 2010-07-29 | 2012-02-08 | 上海市政工程设计研究总院 | Oxidation ditch process with functions of preventing and controlling activated sludge bulking |
| CN102344222B (en) * | 2010-07-29 | 2015-02-18 | 上海市政工程设计研究总院 | Oxidation ditch process with functions of preventing and controlling activated sludge bulking |
| CN101973680A (en) * | 2010-10-28 | 2011-02-16 | 中山市环保实业发展有限公司 | Integrated A2-O oxidation ditch |
| CN101973680B (en) * | 2010-10-28 | 2013-01-09 | 中山市环保实业发展有限公司 | Integrated A2-O oxidation ditch |
| CN102010106A (en) * | 2010-12-02 | 2011-04-13 | 福州城建设计研究院 | Integrated high-efficiency oxidation ditch and sewage treatment process thereof |
| CN102503068A (en) * | 2011-10-18 | 2012-06-20 | 广东省工程技术研究所 | Biological water reducing method for low-organic-content sludge |
| CN102503068B (en) * | 2011-10-18 | 2013-08-28 | 广东省工程技术研究所 | Biological water reducing method for low-organic-content sludge |
| CN102849834A (en) * | 2012-10-15 | 2013-01-02 | 华东理工大学 | Chemical reaction-precipitation integrated treatment method and chemical reaction-precipitation integrated treatment device |
| CN102849834B (en) * | 2012-10-15 | 2014-07-09 | 华东理工大学 | Chemical reaction-precipitation integrated treatment method and chemical reaction-precipitation integrated treatment device |
| CN104984567A (en) * | 2015-07-13 | 2015-10-21 | 广西华鸿环保设备有限公司 | Mud-scraping device for ring-shaped pond |
| CN110436628A (en) * | 2019-08-15 | 2019-11-12 | 浙江海牛环境科技股份有限公司 | A kind of improved oxidation ditch biochemical wastewater treatment system |
| CN111875173A (en) * | 2020-08-05 | 2020-11-03 | 生态环境部华南环境科学研究所 | Novel rural domestic sewage integration processing system is consumed to high efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130219 Granted publication date: 20040428 |