CN101531439B - Integrative three-bent tridimensional cyclic oxidation ditch - Google Patents
Integrative three-bent tridimensional cyclic oxidation ditch Download PDFInfo
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- CN101531439B CN101531439B CN2009100310897A CN200910031089A CN101531439B CN 101531439 B CN101531439 B CN 101531439B CN 2009100310897 A CN2009100310897 A CN 2009100310897A CN 200910031089 A CN200910031089 A CN 200910031089A CN 101531439 B CN101531439 B CN 101531439B
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- oxidation ditch
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- 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
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Abstract
The invention relates to an integrative three-bent tridimensional cyclic oxidation ditch, which comprises an oxidation ditch, a solid-liquid separator and an aeration rotary brush. The upper part of the oxidation ditch is provided with a water inlet, and the aeration rotary brush is arranged in front of the water inlet. The integrative three-bent tridimensional cyclic oxidation ditch is characterized in that the solid-liquid separator is arranged at the side of the oxidation ditch; two partition boards are arranged in the oxidation ditch to divide the oxidation ditch into an upper aerobic zone, a middle anoxic zone and a lower anaerobic zone as three communicated chambers; and the bottom of the solid-liquid separator is communicated with the lower anaerobic zone, and the upper part of the solid-liquid separator is provided with a water outlet. The ditch has the advantages of compact structure, simple construction and stable and reliable treating effect; compared with the prior oxidation ditch, the occupied area can be reduced by 66 percent; and the ditch is particular suitable for domestic sewage treatment for countryside scattered residential areas, army camps, docks, and the like.
Description
Technical field
The present invention relates to a kind of equipment that utilizes biochemical technology to dispose of sewage, specifically a kind of integrative three-bent tridimensional cyclic oxidation ditch.
Background technology
Known a kind of oxidation ditch sewage disposal technology is the twentieth century exploitation fifties at present, belongs to a kind of deformation technique of active sludge treatment process, mainly is made up of oxidation ditch, second pond and mud return-flow system.Oxidation ditch process is since being born, and its evolution can be divided into three phases: first-generation oxidation ditch is Paasche Wei Er (Pasveer) oxidation ditch (see figure 3), and with aeration rotary brush and vertical aerator.The s-generation is Caro plug (carrousel) oxidation ditch (see figure 4) and opel (orbar) oxidation ditch (see figure 5).
The common feature of these oxidation ditch devices is: oxidation ditch is the plane enclosed irrigation canals and ditches that circulate, and using changes brush (or plate-spinning) and promote mixed solution (sewage and active sludge composition) along continuous straight runs and in covered canal, circulate continuously.This oxidation ditch hydraulic detention time is long, and the load of organic pollutant is low, and settling tank and oxidation ditch branch are built, and through sludge pump precipitating sludge are back in the oxidation ditch.Though this oxidation ditch can effectively be removed organic pollutant, its main drawback is that the degree of depth of oxidation ditch is more shallow because the aerator ability is limit, and the depth of water is 1-3 rice usually, and floor space is big.Therefore, be restricted in land resources area use in short supply.
Later 1980s, the U.S. has developed another kind of known oxidation ditch sewage treatment-integrated oxidation ditch (Integral Oxidation Ditch is called for short I.O.D, sees Fig. 6).It is that a kind of sewage aeration with conventional oxidation ditch device purifies and the precipitate and separate of mixed solution merge into a single whole (settling tank is directly arranged in the oxidation ditch raceway groove); To realize the no blowback stream of mud; This method is compared with the used method of conventional oxidation ditch device, has saved the mud return-flow system.Its shortcoming is: second pond is built in the recirculation channel, has increased flow resistance, to the requirement raising of aerator.Because still circulation continuously in horizontal direction of mixed solution receives the restriction of aeration ability in the reaction tank, the depth of water generally is no more than 3 meters, therefore, still has the excessive problem of floor space.
Earlier 2000s; Oxidation ditch device in Ecotope Centre, Chinese Academy of Sciences's invention " incorporated double settling zone tridimensional circulating oxidation ditch facility and working method thereof "; Its principal character is: this oxidation ditch is the tridimensional circulation type oxidation ditch; It is by dividing plate oxidation ditch to be divided into two portions up and down, and top is aerobic zone, and the bottom is the oxygen-starved area.Two ends are separately installed with two solid-liquid precipitate and separate devices in the tridimensional circulation type oxidation ditch.This separator suitably highly locates to have the mud refluxing opening in the middle part of being positioned at tridimensional circulating oxidation ditch; By mixed solution in the oxidation ditch to hydrodynamic characteristic dirty or that produce when circulating; Mud is back in the oxidation ditch automatically, realizes the non-power consumption that mud refluxes.But this tridimensional circulating oxidation ditch has only a dividing plate to be divided into up and down two portions, and top is aerobic zone, and the bottom is the oxygen-starved area, can only realize nitration denitrification and can not realize dephosphorization.And because ditch depth is limited, the utilization ratio of oxygen is still lower, and floor space can also further reduce.
Summary of the invention
The object of the invention is exactly the deficiency to above-mentioned prior art, provide on a kind of fluidised form mode upgrade, floor space is littler, the sewage treatment process aspect is more advanced, further saves the integrative three-bent tridimensional cyclic oxidation ditch of energy consumption.
The technical scheme that the present invention adopts is following:
A kind of integrative three-bent tridimensional cyclic oxidation ditch; It includes oxidation ditch, solid-liquid separator and aeration rotary brush; Have water-in on oxidation ditch top, aeration rotary brush is installed in the place ahead of water-in, it is characterized in that said solid-liquid separator is installed in the sidepiece of oxidation ditch; Laterally be provided with two dividing plates in the said oxidation ditch; Oxidation ditch is separated into upper strata aerobic zone, oxygen-starved area, middle level and three plenum chambers of lower floor's anaerobic zone that are connected, and solid-liquid separator bottom is communicated with the lower floor anaerobic zone, and the top of solid-liquid separator is provided with water outlet.
The both sides of said oxidation ditch are equipped with solid-liquid separator; Solid-liquid separator is the non-rectangle container; The mixed solution admission port that its bottom is communicated with the lower floor anaerobic zone is diagonal cut joint; Side wall upper part in stationary separator is provided with overflow weir and water outlet, on the sidewall that joins with oxidation ditch, is provided with the mud refluxing opening, and the mud refluxing opening is communicated to the upper strata aerobic zone.
The said mud refluxing opening that is positioned at one of them solid-liquid separator of oxidation ditch both sides is opened below the upside dividing plate and is no more than 0.8 meter, and the mud refluxing opening of another solid-liquid separator is opened more than the upside dividing plate and is no more than 0.8 meter.
Beneficial effect of the present invention has:
1, system architecture is compact, and structure is succinct, can realize automated operation.
2, in municipal effluent and Industrial Wastewater Treatment, can effectively reach denitrogenation, the purpose of dephosphorization.Go up the chamber mixed solution in the three-dimensional circulation oxygen ditch and be in oxygen condition, effectively degradation of organic substances and ammonia nitrogen is oxidized to nitric nitrogen (nitrate nitrogen and nitrite nitrogen).Being anoxic condition in middle chamber, is nitrogen and from sewage, removing with nitrate-nitrogen reduction under the effect of denitrifying bacteria.Denitrification is carbon source with the organism, therefore can simultaneously partial organic substances be removed.
3, lower floor's anaerobic zone of oxidation ditch and air are isolated, are in anaerobic state, and the phosphorus of dephosphorization bacterial excess ingestion in the aerobic compartment in upper strata can obtain discharging, and are back to the upper strata aerobic zone through the solid-liquid separator precipitate and separate and inhale phosphorus once again.Through the mode of spoil disposal, with the mud that forms high phosphorus, the discharge system is to reach the purpose of dephosphorization from waste water thus.
4, this equipment is in municipal effluent and trade effluent; Have that water quality of processed water is good, characteristics such as reduced investment, energy consumption are low, save working cost and running, convenient management, be particularly useful for the rural area and disperse sanitary sewage disposals such as Residential areas, army's barracks, harbour.
5, floor space is little, compares floor space with existing oxidation ditch and can reduce 66%.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of solid-liquid separator of the present invention.
Fig. 3 is existing Paasche Wei Er groove structure synoptic diagram.
Fig. 4 is existing Caro plug oxidation ditch synoptic diagram.
Fig. 5 is existing opel oxidation synoptic diagram.
Fig. 6 is existing one oxidation ditch structural representation.
Embodiment
Below in conjunction with accompanying drawing the present invention is done explanation further:
As shown in Figure 1, be provided with the dividing plate 1 of two levels in the oxidation ditch of the present invention, oxidation ditch is separated into upper strata aerobic zone 2, oxygen-starved area, middle level 3 and 4 three plenum chambers of lower floor's anaerobic zone of connection.Have water-in 5 on oxidation ditch top, aeration rotary brush 6 is installed, sewage is arranged in the oxidation ditch with convenient in the place ahead of water-in 5.In the both sides of oxidation ditch two solid-liquid separators 7 have been installed simultaneously; Two above-mentioned dividing plate 1 two ends are installed in respectively on the inner side-wall of two solid-liquid separators 7; Leave the raceway groove 8 that makes the unimpeded round-robin of sewage relative separately between the inner side-wall of they and solid-liquid separator 7; Or with the airtight connection of solid-liquid separator 7 inner side-walls of dividing plate 1 selective oxidation ditch both sides; Offer the hole of supplying water and circulating at the two ends of dividing plate 1, upper strata aerobic zone 2, oxygen-starved area, middle level 3 and 4 three plenum chambers of lower floor's anaerobic zone are exactly to realize mutual connection through raceway groove on the dividing plate 18 or hole.
As shown in Figure 2; The solid-liquid separator 7 that is positioned at the oxidation ditch both sides among the present invention is the non-rectangle container; The mixed solution admission port 9 that its bottom is communicated with the lower floor anaerobic zone is diagonal cut joint; Be provided with overflow weir 10 and water outlet 11 in a side wall upper part of stationary separator, on the sidewall that joins with oxidation ditch, be provided with mud refluxing opening 12, mud refluxing opening 12 is communicated to the upper strata aerobic zone.Being positioned at mud refluxing opening that mud refluxing opening 12 on the solid-liquid separator 7 of oxidation ditch both sides is set as one of them solid-liquid separator opens below the upside dividing plate and is no more than 0.8 meter; The mud refluxing opening of another solid-liquid separator is opened more than the upside dividing plate and is no more than 0.8 meter; Guarantee mud and the circulating effect of sewage in device, be specially the mud refluxing opening position that is provided with on the dividing plate that is positioned at downside in the oxidation ditch on that relative side solid-liquid separator sidewall of raceway groove one end and lean on time.
Working process of the present invention is following:
Sewage is got into the upper strata aerobic zone 2 of the tridimensional circulating oxidation ditch that two settling regions are arranged that microbial population is housed by admission port 5; Through aeration rotary brush 6 stirring-up sewages and microbial population thorough mixing; Owing in the upper strata aerobic zone 2 sufficient dissolved oxygen is arranged, makes mixed solution be oxygen condition.Mixed solution flow into oxygen-starved area, middle level 3 downwards through the raceway groove or the hole of upside dividing plate side then, and 3 molecular oxygens that have trace in oxygen-starved area, middle level make that again mixed solution is anoxic condition; Mixed solution flow into lower floor's anaerobic zone 4 downwards through the raceway groove or the hole of downside dividing plate side again; In lower floor's anaerobic zone 4 zones, promptly do not have molecular oxygen, do not have chemical combination attitude oxygen yet, make mixed solution be anaerobic state; The last mixed solution solid-liquid separator 7 of flowing through; The clear water of separator well is discharged from solid-liquid separator 7 top water outlets 11, and unsegregated mud is back to upper strata aerobic zone 2 automatically along mud refluxing opening 12, gets into circulation next time.
The undeclared part of other that the present invention relates to is identical with prior art.
Claims (1)
1. integrative three-bent tridimensional cyclic oxidation ditch, it includes oxidation ditch, solid-liquid separator and aeration rotary brush, has water-in on oxidation ditch top; Aeration rotary brush is installed in the place ahead of water-in; It is characterized in that said solid-liquid separator is installed in the sidepiece of oxidation ditch, be provided with two dividing plates in the said oxidation ditch, oxidation ditch is separated into upper strata aerobic zone, oxygen-starved area, middle level and three plenum chambers of lower floor's anaerobic zone of connection; Solid-liquid separator bottom is communicated with the lower floor anaerobic zone; The top of solid-liquid separator is provided with water outlet, and the both sides of said oxidation ditch are equipped with solid-liquid separator, and solid-liquid separator is the non-rectangle container; The mixed solution admission port that its bottom is communicated with the lower floor anaerobic zone is diagonal cut joint; Side wall upper part in stationary separator is provided with overflow weir and water outlet, on the sidewall that joins with oxidation ditch, is provided with the mud refluxing opening, and the mud refluxing opening is communicated to the upper strata aerobic zone; The said mud refluxing opening that is positioned at one of them solid-liquid separator of oxidation ditch both sides is opened below the upside dividing plate and is no more than 0.8 meter; The mud refluxing opening of another solid-liquid separator is opened more than the upside dividing plate and is no more than 0.8 meter, is positioned at the mud refluxing opening position that is provided with on the dividing plate of downside on that relative side solid-liquid separator sidewall of raceway groove one end in the said oxidation ditch by down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100310897A CN101531439B (en) | 2009-04-27 | 2009-04-27 | Integrative three-bent tridimensional cyclic oxidation ditch |
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| CN2009100310897A CN101531439B (en) | 2009-04-27 | 2009-04-27 | Integrative three-bent tridimensional cyclic oxidation ditch |
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| CN101531439A CN101531439A (en) | 2009-09-16 |
| CN101531439B true CN101531439B (en) | 2012-07-11 |
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| CN110182951B (en) * | 2019-05-31 | 2024-02-27 | 凌志环保股份有限公司 | Horizontal integrated A/O oxidation ditch tank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2415029Y (en) * | 2000-04-13 | 2001-01-17 | 广东省环境工程装备总公司 | Sewage treating device |
| CN1376642A (en) * | 2001-03-27 | 2002-10-30 | 中国科学院生态环境研究中心 | Equipment and process for treating sewage by integrated oxidizing ditch with 3D circulation |
| CN1463933A (en) * | 2002-06-04 | 2003-12-31 | 中国科学院生态环境研究中心 | Incorporated double settling zone tridimensional circulating oxidation ditch facility and method of operating thereof |
| CN101269880A (en) * | 2008-05-07 | 2008-09-24 | 天津市天水环保设计工程有限公司 | Zanjon type gas-lift stream-pull tridimensional circulation type integral co-construction oxidation ditch |
| CN201400621Y (en) * | 2009-04-27 | 2010-02-10 | 江苏金山环保工程集团有限公司 | Integrated three-folded type three-dimensional cyclic oxidation ditch |
-
2009
- 2009-04-27 CN CN2009100310897A patent/CN101531439B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2415029Y (en) * | 2000-04-13 | 2001-01-17 | 广东省环境工程装备总公司 | Sewage treating device |
| CN1376642A (en) * | 2001-03-27 | 2002-10-30 | 中国科学院生态环境研究中心 | Equipment and process for treating sewage by integrated oxidizing ditch with 3D circulation |
| CN1463933A (en) * | 2002-06-04 | 2003-12-31 | 中国科学院生态环境研究中心 | Incorporated double settling zone tridimensional circulating oxidation ditch facility and method of operating thereof |
| CN101269880A (en) * | 2008-05-07 | 2008-09-24 | 天津市天水环保设计工程有限公司 | Zanjon type gas-lift stream-pull tridimensional circulation type integral co-construction oxidation ditch |
| CN201400621Y (en) * | 2009-04-27 | 2010-02-10 | 江苏金山环保工程集团有限公司 | Integrated three-folded type three-dimensional cyclic oxidation ditch |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-36517A 2008.02.21 |
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Owner name: JIANGSU JINSHAN ENVIRONMENTAL PROTECTION TECHNOLOG Free format text: FORMER OWNER: JIANGSU JINSHAN ENVIRONMENTAL PROTECTION ENGINEERING GROUP CO., LTD. Effective date: 20150702 |
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Effective date of registration: 20150702 Address after: 214212 Wuxi, Jiangsu Province, Yixing City Industrial Zone, Wan Zhen Patentee after: Jiangsu Jinshan Environmental Protection Technology Co.,Ltd. Address before: 214212, Jiangsu, Yixing Province Stone Town Industrial Park Patentee before: Jiangsu Jinshan Environmental Protection Engineering Group Co., Ltd. |