CN102557244A - Biological aerated filter - Google Patents
Biological aerated filter Download PDFInfo
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- CN102557244A CN102557244A CN2010106031363A CN201010603136A CN102557244A CN 102557244 A CN102557244 A CN 102557244A CN 2010106031363 A CN2010106031363 A CN 2010106031363A CN 201010603136 A CN201010603136 A CN 201010603136A CN 102557244 A CN102557244 A CN 102557244A
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- inlet pipe
- water
- water inlet
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- distributing area
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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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- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a biological aerated filter. The biological aerated filter is divided into a water distribution zone and a water inlet zone, wherein the water distribution zone and the water inlet zone are arranged at intervals by virtue of a partition plate; the bottom of the water distribution zone is provided with an aeration pipe, and the aeration pipe releases oxygen to the water distribution zone; the partition plate is provided with a filter head which causes the water distribution zone and the water inlet zone to be communicated; the water inlet zone is also connected with a backwash water inlet pipe and a backwash air inlet pipe, and the backwash water inlet pipe and the backwash air inlet pipe are respectively used for water injection and air injection on the water inlet zone by virtue of valves; and a branch pipeline is arranged between the backwash water inlet pipe and the valves of the backwash water inlet pipe, and the branch pipeline is also provided with a sludge discharge pump. By applying the technical scheme of the invention, complete biological treatment can be completely achieved in one biological aerated filter while no secondary sedimentation tank used for sludge sedimentation is required to be arranged downstream; meanwhile, valves of the backwash water inlet pipe and the valves of the backwash air inlet pipe are closed, the sludge discharge pump is started, sludge gathered at the water distribution zone is reversely and forcibly discharged, then backwashing is carried out, time of the backwashing is shortened, and water yield is increased.
Description
Technical field
The present invention relates to a kind of BAF.
Background technology
BAF is called for short BAF, is a kind of new bio embrane method sewage treatment process that grows up the America and Europe end of the eighties, and this technology has the effect of removing SS, COD, BOD, nitrated, denitrogenation, dephosphorization, removal AOX (objectionable impurities).BAF collection bio-oxidation with hold back the suspended solids one, saved post precipitation pond (second pond), have volumetric loading, hydraulic load is big; Hydraulic detention time is short; Required initial cost is few, and effluent quality is good: operation energy consumption is low, the characteristics that working cost is few.Yet BAF of the prior art is when operation, and water inlet reduces sharply at the water distributing area flow velocity, causes the big quantity set mud of water distributing area, and when the BAF back flushing, collection mud is dashed floating by backwashing water, cause the backwash overlong time.Influence effluent quality, the processing water yield is reduced in a large number, therefore, need a kind of BAF that can get rid of water distributing area collection mud.
Summary of the invention
The embodiment of the invention provides a kind of BAF to BAF water distributing area collection mud problem in the above-mentioned prior art, and this invention concrete grammar is following:
Said BAF is divided into the water distributing area that is positioned at said BAF space top and the inhalant region of said water distributing area below, and said water distributing area and inhalant region are set in distance through dividing plate;
Said water distributing area bottom is provided with aerating pipe, and said aerating pipe is to the water distributing area release of oxygen;
Said dividing plate is provided with the filter that water distributing area and inhalant region are communicated with;
Said inhalant region also is connected with back flushing water inlet pipe and back flushing inlet pipe, and said back flushing water inlet pipe and back flushing inlet pipe are respectively through water filling and the gas injection of valve control to inhalant region;
Between the valve of back flushing water inlet pipe and back flushing water inlet pipe, also be provided with branch line, said branch line is provided with sludge pump.
Preferably, said inhalant region has the moisturizing groove through pipe connection, and said moisturizing groove level height is higher than water distributing area.
Use technical scheme of the present invention, can make sewage pass through the oxygen degraded and the oxidation of interior biofilter material of water distributing area and aerating pipe release, the mud that is produced is retained in water distributing area and deposition; And only let the water that purifies pass through, can in a BAF, reach biological treatment completely like this and do not need second pond to be set and carry out sludge settling in downstream, and; Through the sludge pump on the back flushing water inlet pipe, when the water distributing area throw out is too much, close the valve of back flushing water inlet pipe and back flushing inlet pipe; Start sludge pump, behind the mud that reverse pressure discharge water distributing area gathers, carry out back flushing again; Shorten backwashing time, increase aquifer yield.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute to improper qualification of the present invention, in the accompanying drawings:
Fig. 1 constitutes synoptic diagram for embodiment of the invention system.
Embodiment
To combine specific embodiment to specify the present invention below, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as to qualification of the present invention.
As shown in Figure 1, BAF integral body is structure up and down, and upper space is the water distributing area 1 of WWT, and water distributing area 1 below is an inhalant region 2, passes through dividing plate 3 between water distributing area 1 and the inhalant region 2 at interval; Being provided with the aerating pipe of introducing from the outside 4 in water distributing area 1 bottom, is oxygen in this aerating pipe 4, and the part that aerating pipe 4 is positioned at water distributing area 1 is provided with five air diffusers 5;
Be positioned at inhalant region 2 outsides of water distributing area 1 below, be connected with back flushing water inlet pipe 6 and back flushing inlet pipe 7 respectively through valve control; Between the valve on back flushing water inlet pipe 6 and the back flushing water inlet pipe 6, also be connected with a branch line, on this branch line, be provided with sludge pump 8; On the dividing plate 3 between water distributing area 1 and the inhalant region 2, be provided with filter 9, water distributing area 1 is communicated with through filter 9 with inhalant region 2.
The enforcement principle of above-mentioned BAF is: sewage is through water distributing area 1; The pollutent that water body contains is held back by biofilter material 10; And the biological degradation conversion of being adhered on the dioxygen oxidation of aerating pipe 4 releases and the biofilter material 10; Simultaneously, the organism and the predetermined substance of dissolved state also are removed, and the mud that is produced is retained in water distributing area 1 and deposition; And only let the water that purifies pass through, can in a BAF, reach biological treatment completely like this and do not need second pond to be set and carry out sludge settling in downstream;
For preventing that throw out from causing filter 9 to stop up in water distributing area 1 deposition, open the valve on back flushing water inlet pipe 6 and the back flushing inlet pipe 7, current and air-flow flow to water distributing area 1 from inhalant region 2 through filter 9; And filter 9 washed away, can avoid filter 9 to stop up, and; Through the sludge pump on the back flushing water inlet pipe 68, when water distributing area 1 throw out is too much, close the valve of back flushing water inlet pipe 6 and back flushing inlet pipe 7; Start sludge pump 8, behind the mud that reverse pressure discharge water distributing area 1 gathers, carry out back flushing again; Shorten backwashing time, increase aquifer yield.
Further; As the improvement of the foregoing description scheme, also be connected with moisturizing groove 11 in inhalant region 2 outsides, said moisturizing groove 11 level heights are higher than water distributing area 1; Make 2 one-tenth communicating vessels structures of moisturizing groove 11 and inhalant region, can avoid sewage backflow to inhalant region 2 in the water distributing area 1.
More than the technical scheme that the embodiment of the invention provided has been carried out detailed introduction; Used concrete example among this paper the principle and the embodiment of the embodiment of the invention are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1. BAF is characterized in that:
Said BAF is divided into the water distributing area that is positioned at said BAF space top and the inhalant region of said water distributing area below, and said water distributing area and inhalant region are set in distance through dividing plate;
Said water distributing area bottom is provided with aerating pipe, and said aerating pipe is to the water distributing area release of oxygen;
Said dividing plate is provided with the filter that water distributing area and inhalant region are communicated with;
Said inhalant region also is connected with back flushing water inlet pipe and back flushing inlet pipe, and said back flushing water inlet pipe and back flushing inlet pipe are respectively through water filling and the gas injection of valve control to inhalant region;
Between the valve of back flushing water inlet pipe and back flushing water inlet pipe, also be provided with branch line, said branch line is provided with sludge pump.
2. like the described BAF of claims, it is characterized in that:
Said inhalant region has the moisturizing groove through pipe connection, and said moisturizing groove level height is higher than water distributing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010603136.3A CN102557244B (en) | 2010-12-23 | 2010-12-23 | Biological aerated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010603136.3A CN102557244B (en) | 2010-12-23 | 2010-12-23 | Biological aerated filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102557244A true CN102557244A (en) | 2012-07-11 |
| CN102557244B CN102557244B (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010603136.3A Expired - Fee Related CN102557244B (en) | 2010-12-23 | 2010-12-23 | Biological aerated filter |
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| Country | Link |
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| CN (1) | CN102557244B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668939A (en) * | 2016-03-30 | 2016-06-15 | 内蒙古工业大学 | Combined biofilter device and method for treating papermaking wastewater |
| CN106865745A (en) * | 2017-04-24 | 2017-06-20 | 湖南北控威保特环境科技股份有限公司 | A kind of biological contact oxidation pond |
| CN109020048A (en) * | 2018-07-09 | 2018-12-18 | 中国航空规划设计研究总院有限公司 | A kind of lithium battery waste water initial stage processing integrated apparatus |
| CN115974305A (en) * | 2022-12-09 | 2023-04-18 | 山东中欧膜技术研究有限公司 | Integrated membrane method water treatment system and treatment method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1009892C2 (en) * | 1998-08-18 | 2000-02-21 | Watec B V | Biological treatment plant for purifying water, contains closed system formed by a sealed reactor tank and a gas recirculation means |
| GB0229360D0 (en) * | 2002-12-17 | 2003-01-22 | Sev Trent Water Purification L | Biological aerated filter |
| CN101172699A (en) * | 2007-10-19 | 2008-05-07 | 东华大学 | Improved structure for gas and water mix backwash of aerating biological filter |
-
2010
- 2010-12-23 CN CN201010603136.3A patent/CN102557244B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1009892C2 (en) * | 1998-08-18 | 2000-02-21 | Watec B V | Biological treatment plant for purifying water, contains closed system formed by a sealed reactor tank and a gas recirculation means |
| GB0229360D0 (en) * | 2002-12-17 | 2003-01-22 | Sev Trent Water Purification L | Biological aerated filter |
| GB2396312A (en) * | 2002-12-17 | 2004-06-23 | Sev Trent Water Purification L | A biological filter with backwash means |
| CN101172699A (en) * | 2007-10-19 | 2008-05-07 | 东华大学 | Improved structure for gas and water mix backwash of aerating biological filter |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105668939A (en) * | 2016-03-30 | 2016-06-15 | 内蒙古工业大学 | Combined biofilter device and method for treating papermaking wastewater |
| CN106865745A (en) * | 2017-04-24 | 2017-06-20 | 湖南北控威保特环境科技股份有限公司 | A kind of biological contact oxidation pond |
| CN106865745B (en) * | 2017-04-24 | 2022-11-11 | 湖南北控威保特环境科技股份有限公司 | Biological contact oxidation pond |
| CN109020048A (en) * | 2018-07-09 | 2018-12-18 | 中国航空规划设计研究总院有限公司 | A kind of lithium battery waste water initial stage processing integrated apparatus |
| CN115974305A (en) * | 2022-12-09 | 2023-04-18 | 山东中欧膜技术研究有限公司 | Integrated membrane method water treatment system and treatment method |
| CN115974305B (en) * | 2022-12-09 | 2023-09-12 | 山东中欧膜技术研究有限公司 | Integrated membrane method water treatment system and treatment method |
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| Publication number | Publication date |
|---|---|
| CN102557244B (en) | 2014-02-12 |
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