CN1769204A - Biochemical aeration tank with precipitation device - Google Patents
Biochemical aeration tank with precipitation device Download PDFInfo
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- CN1769204A CN1769204A CNA2005100372607A CN200510037260A CN1769204A CN 1769204 A CN1769204 A CN 1769204A CN A2005100372607 A CNA2005100372607 A CN A2005100372607A CN 200510037260 A CN200510037260 A CN 200510037260A CN 1769204 A CN1769204 A CN 1769204A
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- aeration tank
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- aeration
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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 discloses a biochemical aeration pool with deposition device and relates to a wastewater treatment utility. It contains: using one deposition device from inclined tube or inclined plate deposition, vertical flow or advection deposition to separate simply the pushing flow aeration pool into several sections, the deposition sludge in separate section flowing gravely or being gas-lifted into the section to circulate to dewater the high-effective predominant flora suitable for water quality of the section, degrading the organics in the water quality condition to make the predominant flora highly effective; the wastewater flowing into next section and being treated with predominant flora suitable for the next water quality, the residual sludge of separate section flowing gravely or being gas-lifted into next section or sludge well, and finally dewatering treatment. The invented device sets the merit of communal type and pushing flow type aeration poll and MBR, and it develops the function of biological selector to culture predominant flora, especially is suitable for treating industrial wastewater of high concentration and difficult for biodegradation and modifying the prior aeration pool and anaerobic biochemical pool. The device is characterized in that the structure is compact, the resistance to impact is strong, and the treatment effect is good.
Description
Affiliated technical field
The present invention relates to the sewage treatment facility of field of environment protection, especially a kind of biochemical aeration tank with settler.
Background technology
Aggravation along with development of modern industry and mankind's activity, the pollutent that produces is considerably beyond environmental self-purification capacity, and environmental pollution increases the weight of day by day, and people make great efforts to eliminate these pollutions by artificial environment, strengthened the dynamics of water prevention and cure of pollution, various water treatment method and technology are also arisen at the historic moment.
For the water body organic contamination, generally adopt biochemical method to administer, just activated sludge process and biomembrance process.Activated sludge process is to give organism to supply with oxygen for the inoculating microbe of food, and suspension growth in artificial environment is with inorganicization of organic pollutant, innoxious.The microorganic adhesion that different with it is in the biomembrance process is grown on biologic packing material, forms microbial film.Active sludge is also arranged, the two collaborative work, oxidation organic pollutant in the artificial environment of biomembrance process.The removal speed of pollutent and efficient and substrate concn and microbe species, population quantity and aeration rate have substantial connection in the artificial environment.
The aeration tank of common sewage biochemical treatment system and settling tank are separately to build, and the mud of settling tank arrives the aeration tank by the water pump partial reflux, to improve microbial population quantity, i.e. sludge concentration.
The complete mixing system of Round Sump the earliest is generally circular pond, and the centre in pond is complete blended aeration biochemical district, and the outside is water conservancy diversion district and settling region, and mud backflow seam is arranged at the bottom.This is a kind of mini-system, and its aeration zone Pollutant levels are suitable with the concentration of handling postprecipitation district's water outlet, and therefore, the complete mixing system efficient of Round Sump is low, weak effect, and floor space is big, uses the pulling flow type biomembrance process now instead more.
Microbial film and active sludge are arranged in the biomembrance process biochemical system simultaneously, and the microbial population amount increases, and processing efficiency improves.Pulling flow type system substrate concn progressively reduces from inlet water to outlet water, oxygen-consumption, processing speed and efficient also progressively reduce, and therefore, effect is also not ideal, can not adapt to the processing of the high-concentration industrial-water of bio-refractory, it is also big that aeration tank and settling tank are separately built floor space.
High-concentration industrial-water often contains the pollution substance of a lot of bio-refractories, and these materials often need multiple microorganism cooperation repeatedly to degrade and inorganicization of pollutent, innoxious particularly could be needed the participation of efficient flora.The pulling flow type system can not satisfy existence and the breeding of multiple microorganism, and efficient flora can not become dominant microflora, so treatment effect is undesirable.
For this reason, engineering technical personnel use two-part to handle, and take two sections placed in-line technologies of aeration tank-settling tank-aeration tank-settling tank, have obtained certain effect.But this method investment is big, equipment is many, occupation of land is big, and also there is certain difficulty in operational management.
Along with the film industrial expansion, the external-compression type hollow fiber microfiltration membrane also is applied to sewage treatment area, is called MBR.In some occasions, this external-compression type hollow fiber microfiltration membrane is installed in the aeration tank outlet, and by micro-filtrate membrane filtration clear water qualified discharge, mud is stayed the aeration tank and continued to use.This membrane filter appts investment is very big, and working cost is very high, applies being restricted.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of biochemical aeration tank with settler, with settler plug-flow aeration tank simply is separated into plurality of sections, the advantage of having gathered Round Sump and plug-flow aeration tank and MBR, brought into play the effect of the efficient flora of cultivation advantage of biological selector again, be particularly suitable for Industrial Wastewater Treatment and the existing aeration tank and the transformation of anaerobic biological pond of high density difficult for biological degradation, and system architecture compactness, reduced investment, occupation of land is little, treatment effect good.
The present invention solves the technical scheme that its technical problem takes:
A kind of biochemical aeration tank with settler, with settler plug-flow aeration tank simply is separated into plurality of sections, the precipitating sludge gravity flow or the gas of each section are mentioned this section circulation, the efficient dominant microflora that is suitable for this section sewage quality is concentrated, continuation is degradation of organic substances under this condition of water quality, settler plays the effect of biological selector, the efficient that the dominant microflora performance is higher; Sewage enters the dominant microflora processing that next section usefulness is fit to next section water quality; Every section excess sludge gravity flow or gas are mentioned next section or sewer catch basin, and final concentration is disposed.The biochemistry pool of this band settler also is applicable to the anaerobic biological pond.
The aeration tank of the biochemical aeration tank of described band settler is the active sludge aeration tank or fixing filler is housed or the biological contact oxidation pond of floating stuffing; Each that is separated section can be a pulling flow type, also can be hybrid-type fully; The hop count that is separated is relevant with sewage quality, the water yield and biodegradability, is generally more than two sections or two sections.
The settler of the biochemical aeration tank of described band settler is a kind of of tube settling, sloping plate deposition, perpendicular stream precipitation or advection sedimentation, and its precipitation is spissated to be active sludge in the aeration tank, and it is arranged and installation method has multiple.This settler is not pursued too high deposition efficiency, and suspended substance deposition rate 90～95% gets final product, and allows a small amount of mud to enter next section of aeration tank.Efficient sedimentation tank or MBR that final stage can use branch to build, up to standard to guarantee effluent quality.
The settler of the biochemical aeration tank of described band settler may comprise the known affiliated facilities such as grid of support, framework, flow deflector (tube), water leg and obstruct floating stuffing.
The invention has the beneficial effects as follows:
1. the biochemical aeration tank of band settler of the present invention adopts simple settler, reduced investment, takes up an area of for a short time, not only is suitable for new construction, also is suitable for existing aeration tank transformation;
2. the precipitated device of the biochemical aeration tank of band settler of the present invention is separated into plurality of sections, the water quality difference of each section, the efficient dominant microflora of Shi Yinging is also different with it, every section precipitate and separate active sludge, play the effect of biological selector, the advantage of various bacterial classifications is given full play to, and is particularly suitable for printing and dyeing, the processing of the trade effluent of high density difficult for biological degradation such as papermaking, chemical industry.
3. the biochemical aeration tank of band settler of the present invention is because the synergy of efficient dominant microflora, good sewage processing effect, and working cost is low.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the biochemical aeration tank plan view that band individual layer level is installed inclined tube (plate) settler.
Fig. 2 is the cross-sectional view of Fig. 1.
Fig. 3 is the biochemical aeration tank plan view that the band multilayer is vertically installed inclined tube (plate) settler.
Fig. 4 is the cross-sectional view of Fig. 3.
Fig. 5 is the biochemical aeration tank plan view that band multilayer level is installed inclined tube (plate) settler.
Fig. 6 is the cross-sectional view of Fig. 5.
Fig. 7 is the biochemical aeration tank plan view that another kind of band individual layer level is installed inclined tube (plate) settler.
Fig. 8 is the cross-sectional view of Fig. 7.
Fig. 9 is the biochemical aeration tank plan view of the perpendicular stream of band settler.
Figure 10 is the cross-sectional view of Fig. 9.
Figure 11 is the biochemical aeration tank plan view of band advection sedimentation device.
Figure 12 is the cross-sectional view of Figure 11.
Among the figure: 1, one section aeration tank, 2, two sections aeration tanks, 3, partition wall, 4, settler, 5, bucket, 6, stripping tube.
For respecting custom, precipitation inclined tube and swash plate are referred to as inclined tube among the figure; Be called one section aeration tank 1 the last period of the plurality of sections that precipitated device is separated, and back one section is called two sections aeration tanks 2.
The affiliated facilities such as grid of the support that may comprise among the figure, framework, flow deflector (tube), water leg and obstruct floating stuffing belong to known technology, do not describe here.
Embodiment
A kind of biochemical aeration tank with settler according to the difference of settler, has multiple layout and installation method.
As Fig. 1, band individual layer level shown in Figure 2 is installed the biochemical aeration tank of tube settling device, the precipitated device 4 of biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2, tube settling device 4 is near one section aeration tank 1 below the partition wall 3, on the close following partition wall 3 of two sections aeration tanks 2, the mud mixture of one section aeration tank 1 is separated when the bottom of tube settling device 4 enters, sewage enters two sections aeration tanks 2, precipitating sludge is deposited under 4 li in the tube settling device and slides into bucket 5, aeration tube or stripping tube 6 through 1 li of one section aeration tank are mentioned, and continue to dispose of sewage.Excess sludge is regularly mentioned sewer catch basin from stripping tube 6 gravity flows or gas, and final concentration is disposed.This mounting means is different from prior art, and inclined tube recedes, and has utilized the space of partition wall 3 up and down, saves aeration tank volume and occupation of land.
Band multilayer is as shown in Figure 3, Figure 4 vertically installed the biochemical aeration tank of tube settling device, biochemical aeration tank is vertically installed tube settling device 4 by multilayer and is separated into one section aeration tank 1 and two sections aeration tanks 2, tube settling device 4 plays the effect of partition wall 3 and bucket 5 simultaneously, the mud mixture of one section aeration tank 1 is separated when a side lower part of tube settling device 4 enters, sewage enters two sections aeration tanks 2, precipitating sludge is deposited under 4 li in the tube settling device and slides into one section aeration tank 1, continues to dispose of sewage.Excess sludge is regularly mentioned sewer catch basin from stripping tube 6 gravity flows or gas, and final concentration is disposed.This mounting means is different from prior art, and inclined tube extends to vertical direction, recedes, and plays the effect of partition wall 3, so saved aeration tank volume and occupation of land greatly.
As Fig. 5, band multilayer level shown in Figure 6 the biochemical aeration tank of tube settling device is installed, biochemical aeration tank is installed tube settling device 4 by the multilayer level and is separated into one section aeration tank 1 and two sections aeration tanks 2, tube settling device 4 plays the effect of partition wall 3 and bucket 5 simultaneously, the mud mixture of one section aeration tank 1 is separated when a side lower part of tube settling device 4 enters, sewage enters two sections aeration tanks 2, precipitating sludge is deposited under 4 li in the tube settling device and slides into one section aeration tank 1, continues to dispose of sewage.Excess sludge is regularly mentioned sewer catch basin from stripping tube 6 gravity flows or gas, and final concentration is disposed.This mounting means is different from prior art, and inclined tube recedes, and multilayer arranges, and plays the effect of partition wall 3, therefore takes up an area of very and economizes.
As Fig. 7, another kind band individual layer level shown in Figure 8 the biochemical aeration tank of tube settling device is installed, biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2 by partition wall 3, tube settling device 4 is installed in the top of one section aeration tank 1, the mud mixture of one section aeration tank 1 is separated when the bottom of tube settling device 4 enters, sewage enters two sections aeration tanks 2 through water leg, precipitating sludge is deposited under 4 li in the tube settling device and slides into one section aeration tank 1, continues to dispose of sewage.Excess sludge is regularly mentioned sewer catch basin from stripping tube 6 gravity flows or gas, and final concentration is disposed.
Erect the biochemical aeration tank of stream settler as Fig. 9, band shown in Figure 10, biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2 by partition wall 3, perpendicular stream settler 4 is installed in 1 li of one section aeration tank, it is separated when the mud mixture of one section aeration tank 1 enters from erecting the bottom of flowing settler 4, sewage enters two sections aeration tanks 2 through water leg, precipitating sludge is deposited on 5 li of the buckets of tube settling device 4, mentions through the aeration tube or the stripping tube 6 of 1 li of one section aeration tank, continues to dispose of sewage.Excess sludge is regularly mentioned sewer catch basin from stripping tube 6 gravity flows or gas, and final concentration is disposed.
Biochemical aeration tank as Figure 11, band advection sedimentation device shown in Figure 12, biochemical aeration tank is with advection sedimentation device 4 to be separated into one section aeration tank 1 and two sections aeration tanks 2, advection sedimentation device 4 is installed in the exit end of one section aeration tank 1, the mud mixture of one section aeration tank 1 enters also separated from the middle part of advection sedimentation device 4 one sides, sewage enters two sections aeration tanks 2 through water leg, precipitating sludge is deposited on 5 li of the buckets of tube settling device 4, aeration tube or stripping tube 6 through 1 li of one section aeration tank are mentioned, and continue to dispose of sewage.Excess sludge is regularly mentioned sewer catch basin from stripping tube 6 gravity flows or gas, and final concentration is disposed.
A kind of biochemical aeration tank with settler may comprise the affiliated facilities such as grid of support, framework, flow deflector (tube), water leg and obstruct floating stuffing, and these belong to known technology, do not set forth here.
Claims (9)
1. biochemical aeration tank with settler, with settler 4 plug-flow aeration tank simply is separated into plurality of sections, the precipitating sludge gravity flow or the gas of each section are mentioned this section circulation, the efficient dominant microflora that is suitable for this section sewage quality is concentrated, continuation is degradation of organic substances under this condition of water quality, settler plays the effect of biological selector, the efficient that the dominant microflora performance is higher; Sewage enters the dominant microflora processing that next section usefulness is fit to next section water quality; Every section excess sludge gravity flow or gas are mentioned next section or sewer catch basin, and final concentration is disposed.The biochemistry pool of this band settler also is applicable to the anaerobic biological pond.
2. biochemical aeration tank according to claim 1 is characterized in that, it is the active sludge aeration tank or fixing filler is housed or the biological contact oxidation pond of floating stuffing; The mud mixture of the one section aeration tank 1 that is separated enters also separated from the bottom of settler 4, sewage enters two sections aeration tanks 2, sludgd deposition slides into bucket 5 under 4 li of settlers, mention through the aeration tube or the stripping tube 6 of 1 li of one section aeration tank, continues to dispose of sewage.Excess sludge is regularly mentioned sewer catch basin from stripping tube 6 gravity flows or gas, and final concentration is disposed.Each that is separated section can be a pulling flow type, also can be hybrid-type fully; The hop count that is separated is relevant with sewage quality, the water yield and biodegradability, is generally more than two sections or two sections.
3. settler 4 according to claim 1 is characterized in that, it is a kind of of tube settling, sloping plate deposition, perpendicular stream precipitation or advection sedimentation, and its precipitation is spissated to be active sludge in the aeration tank, and it is arranged and installation method has multiple.Settler sludge settling rate 90～95% gets final product, and allows a small amount of mud to enter next section of aeration tank.Efficient sedimentation tank or MBR that final stage can use branch to build, up to standard to guarantee effluent quality.
4. according to claim 1 and 3 described settlers 4, its feature also is, a kind of level is installed inclined tube (plate) settler 4 biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2, inclined tube (plate) settler 4 is near one section aeration tank 1 below the partition wall 3, on the close following partition wall 3 of two sections aeration tanks 2, inclined tube (plate) tilts to two sections aeration tanks 2, has utilized the space of partition wall 3 up and down.
5. according to claim 1 and 3 described settlers 4, its feature also is, a kind of multilayer is vertically installed inclined tube (plate) settler 4 biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2, inclined tube (plate) extends to vertical direction, tilt to two sections aeration tanks 2, and play the effect of partition wall 3 and bucket 5.
6. according to claim 1 and 3 described settlers 4, its feature also is, a kind of multilayer level is installed inclined tube (plate) settler 4 biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2, tube settling device 4 inclined tubes tilt to two sections aeration tanks 2, multilayer is arranged, and is played the effect of partition wall 3 and bucket 5.
7. according to claim 1 and 3 described settlers 4, its feature is that also the settler 4 of a kind of band individual layer level installation inclined tube (plate) is installed in the top of one section aeration tank 1, and biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2 by partition wall 3.
8. according to claim 1 and 3 described settlers 4, its feature is that also the perpendicular stream of a kind of band settler 4 is installed in 1 li of one section aeration tank, and biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2 by partition wall 3.
9. according to claim 1 and 3 described settlers 4, its feature also is, a kind ofly is installed in the exit end of one section aeration tank 1 with advection sedimentation device 4, and the precipitated device 4 of biochemical aeration tank is separated into one section aeration tank 1 and two sections aeration tanks 2.This advection sedimentation device 4 width may be greater than length, similar radial-flow sedimentation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100372607A CN1769204A (en) | 2005-09-16 | 2005-09-16 | Biochemical aeration tank with precipitation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100372607A CN1769204A (en) | 2005-09-16 | 2005-09-16 | Biochemical aeration tank with precipitation device |
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| CN1769204A true CN1769204A (en) | 2006-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2005100372607A Pending CN1769204A (en) | 2005-09-16 | 2005-09-16 | Biochemical aeration tank with precipitation device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013007183A1 (en) * | 2011-07-14 | 2013-01-17 | Lo Limited | System for decomposition of organic compounds and method of operation thereof |
| CN103382074A (en) * | 2013-07-26 | 2013-11-06 | 东南大学 | Treatment system and process for removing wastewater COD of multistage domesticated yeast |
| CN105084550A (en) * | 2014-04-15 | 2015-11-25 | 中国石油化工股份有限公司 | Active sludge adsorption bed design method |
| CN105251266A (en) * | 2015-09-16 | 2016-01-20 | 中丹康灵（北京）生物技术有限公司 | Eastern flowing sand type sedimentation basin |
| CN106745747A (en) * | 2017-01-18 | 2017-05-31 | 海南天鸿市政设计股份有限公司 | Jet-flow aeration biomembrane reaction pond |
| CN107388647A (en) * | 2016-05-17 | 2017-11-24 | 万申迪环境科技有限公司 | A kind of sewage source heat pump system pump cheats science filtration |
-
2005
- 2005-09-16 CN CNA2005100372607A patent/CN1769204A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013007183A1 (en) * | 2011-07-14 | 2013-01-17 | Lo Limited | System for decomposition of organic compounds and method of operation thereof |
| RU2595670C2 (en) * | 2011-07-14 | 2016-08-27 | Квок Ки ЛО | System for decomposition of organic compounds and operating method thereof |
| RU2595670C9 (en) * | 2011-07-14 | 2017-02-03 | Квок Ки ЛО | System for decomposition of organic compounds and operating method thereof |
| US9845255B2 (en) | 2011-07-14 | 2017-12-19 | Kwok Ki Lo | System for decomposition of organic compounds and method of operation |
| CN103382074A (en) * | 2013-07-26 | 2013-11-06 | 东南大学 | Treatment system and process for removing wastewater COD of multistage domesticated yeast |
| CN103382074B (en) * | 2013-07-26 | 2015-04-29 | 东南大学 | Treatment system and process for removing wastewater COD of multistage domesticated yeast |
| CN105084550A (en) * | 2014-04-15 | 2015-11-25 | 中国石油化工股份有限公司 | Active sludge adsorption bed design method |
| CN105251266A (en) * | 2015-09-16 | 2016-01-20 | 中丹康灵（北京）生物技术有限公司 | Eastern flowing sand type sedimentation basin |
| CN107388647A (en) * | 2016-05-17 | 2017-11-24 | 万申迪环境科技有限公司 | A kind of sewage source heat pump system pump cheats science filtration |
| CN106745747A (en) * | 2017-01-18 | 2017-05-31 | 海南天鸿市政设计股份有限公司 | Jet-flow aeration biomembrane reaction pond |
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