CN101327989A - Tandem type two-stage three-segment aerating biological filter - Google Patents
Tandem type two-stage three-segment aerating biological filter Download PDFInfo
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- CN101327989A CN101327989A CNA2008101175455A CN200810117545A CN101327989A CN 101327989 A CN101327989 A CN 101327989A CN A2008101175455 A CNA2008101175455 A CN A2008101175455A CN 200810117545 A CN200810117545 A CN 200810117545A CN 101327989 A CN101327989 A CN 101327989A
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- aerated conduit
- filter
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- biologic packing
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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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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a series-type two-stage three-section aeration biofilter comprising an influent distributor pipe, an air input distributor pipe, an effluent pipe and filter materials in the cell body of the filter characerized in that the filter mainbody consists of a waste water pool, filters I, II and a back washing system, wherein a supporting layer 1 is arranged in the filter I as the bottom, a bio-filler layer 2 is arranged on the supporting layer 1, an aerated conduit 4 is arranged in the bio-filler layer 2; another supporting layer 1 is arranged in the filter II as the bottom, a bio-filler layer 3 is arranged on the supporting layer 1, an aerated conduit 5 is arranged in the bio-filler layer 3, and is branched to three section aerated conduits 6, 7, 8; the back washing system consists of an air compressor, a back washing drainage pipe 9 and a drainage pipe 10 after the waste water treatment. The device of the invention can improve the removal performance of the COD and ammonia nitrogen of the system using a lower running cost.
Description
Technical field
The invention belongs to the environmental engineering technical field of sewage.Relate to a kind of tandem type two-stage three-segment aerating biological filter,, improve the efficient that BAF is removed COD and biological denitrificaion by improvement to traditional BAF structure formation.
Background technology
At present, water environment pollution and shortage of water resources have become the subject matter of the further Sustainable development of restriction Chinese national economy, have caused showing great attention to of various circles of society.BAF is a kind of novel dirty water living creature processing technique with simple and easy, efficient and low consumption feature, is one of the research focus in biological sewage treatment field in recent years.This technology has stable effluent quality, processing efficiency height, handle that the water yield is big, floor space is little, compact equipment, convenient operation and management, be easy to realize automatic control, characteristics such as applied widely.At present be widely used in the municipal sewage treatment of China, the processing of community life sewage and the pre-treatment of reuse, Industrial Wastewater Treatment and micro-polluted source water, become one of China's a kind of important techniques means in biological sewage treatment field just gradually.
For traditional concurrent BAF, water inlet is mobile from bottom to top, gas also be by the bottom of biological filter from bottom to top with current and to and go.Because at the direct aeration aerating in packing layer bottom, BAF filter material layer and taking place easily in operational process because filtrate blocking aeration pipeline has caused the contact efficiency of microorganism, sewage and air that filter material surface adheres to low, thereby cause the generation of anaerobic environment, make wastewater treatment inhomogeneous, anti-nitration reaction takes place in part, the phenomenon that nitration reaction takes place part occurs, and makes NO in the final outflow water water
2 -Content increase, the generation of secondary pollution appears.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of tandem type two-stage three-segment aerating biological filter is provided, improve the performance that removes of the COD of system and ammonia nitrogen with lower running cost.
For realizing this purpose, the tandem type two-stage three-segment aerating biological filter that the present invention's design provides mainly comprises the design of the aerating pipelines among filter tank I and the filter tank II.
The top of the present invention in the I filler of filter tank is provided with an aerating apparatus, during aeration, aeration gas is because effect downwards, after water flow mixes under the water inlet flow action from top to bottom by the biologic packing material district, the anaerobic denitrifying effect can be finished by each quasi-microorganism at filling surface because therefore aeration gas can't arrive in the packing area below aerated conduit, and the top, packing area is by finish aerobic de-carbon attached to each quasi-microorganism of filling surface, effects such as aerobic nitrification, organism that contains in the water inlet and ammonia nitrogen class material enter among the II of biological filter after handling through one-level.
The present invention is provided with three aerating apparatuss in the II filler of filter tank, during aeration, the pipe tunnel by the center is to 3 interconnection air feed.The filling surface microorganism of bottom is with the further anaerobism nitrification of the waste water among the I of filter tank, because the ammonia nitrogen among the I of filter tank has obtained most processing, therefore the effect of filter tank II is the effect of aerobic de-carbon substantially, 3 passage aerating apparatuss are set help improving dissolved oxygen in the water, thereby the microorganism that filter material surface adheres to, air, the triphasic contact efficiency of sewage have been improved, can increase substantially organic removal efficient, improve nitrification efficiency simultaneously.Compare with existing technology at the direct aeration in biologic packing material bottom, avoided the direct impact of air scour effect to bio-carrier, the microbial film that helps packing layer adheres to, and has alleviated filler blocking aeration head simultaneously, cause aeration inhomogeneous, thereby the unsettled situation of effluent quality take place.
The present invention is a kind of tandem type two-stage three-segment aerating biological filter, Chi Tizhong in the filter tank, water inlet distribution pipe, air inlet distribution pipe, rising pipe, filtrate are arranged, it is characterized in that: the filter tank main body is made up of wastewater disposal basin, filter tank I, II and back-purge system, supporting layer 1 wherein is set in the I of filter tank constitutes bottom, biologic packing material layer 2 places on the supporting layer 1, and aerated conduit 4 is set in biologic packing material layer 2; Supporting layer 1 is set in the II of filter tank constitutes bottom, biologic packing material layer 3 places on the supporting layer 1, aerated conduit 5 in the middle of in biologic packing material layer 3, being provided with, and branch in the three-segment aerating pipeline 6,7,8; Back-purge system by air compressor, back flushing water shoot 9 and wastewater treatment after water shoot 10 form.
Tandem type two-stage three-segment aerating biological filter of the present invention is characterized in that the composition in supporting layer district 1 is made up of even matter quartz sand.
Tandem type two-stage three-segment aerating biological filter of the present invention, the composition that it is characterized in that biologic packing material layer 2 among the BAF I is by the even matter volcanics granulometric composition of porous; The composition of the biologic packing material layer 3 among the BAF II is by the even matter volcanics granulometric composition of porous; This volcanics particulate tap density is 750~780Kg/m
3, porosity is 82%~88%.
Tandem type two-stage three-segment aerating biological filter of the present invention is characterized in that putting 5~10 holes bottom aerated conduit 4 aerated conduits, and the built-in screen cloth of aerated conduit, guarantees that the filler in the biologic packing material layer 2 can not enter aerated conduit with blocking pipe.
Tandem type two-stage three-segment aerating biological filter of the present invention is characterized in that aerated conduit aerated conduit 6 bottoms put 3~5 holes; 5~10 holes are put in aerated conduit 7 bottoms; 10~15 holes are put in aerated conduit 8 bottoms; All built-in screen cloth in the aerated conduit 6,7,8 guarantees that the filler in the biologic packing material layer 3 can not enter aerated conduit with blocking pipe simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among Fig. 1,1 is the supporting layer of BAF, and 2,3 are respectively the biologic packing material layer of BAF I, II, 4 is the aerated conduit of BAF, 5,6,7,8 is the aerated conduit of BAF, and 9 are back flushing water shoot, water shoot after 10 wastewater treatments.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
Biological filter result of the present invention mainly comprises pond, filter tank body I, II two portions as shown in Figure 1.Wherein pond, filter tank body is again by supporting layer 1; Biologic packing material layer 2,3; Aerated conduit 5,6,7,8 and back flushing pipeline 9 are formed.Wherein supporting layer is made up of even matter quartz sand, biologic packing material is placed on the supporting layer 1, BAF is advanced upper outlet type under adopting, I lower end, waste water filter tank enters, aerating system among the I of filter tank is opened, from bottom to top by biologic packing material district 2, in the biologic packing material district 2 that flows through, the organism that contains in the water inlet, ammonia nitrogen class material were partly removed after water flow mixed.The slow overflow of water after the processing is gone among the II of filter tank, and when flowing through biologic packing material district 3, organism that contains in the water inlet and ammonia nitrogen class material are removed gradually, and the water after finally finishing dealing with is by water shoot 10 dischargings.
The biological filter is after operation for some time, microbial film thickness increases, need carry out back flushing, close aerating system this moment, allow back flushing wash steam water interface and enter the bottom, biological filter by eyelet, become flexible flushing via supporting layer and bio-filter stuffing layer again, the microbial film that back flushing comes off is discharged by top back flushing water shoot 9.
Set up a tandem type two-stage three-segment aerating biological filter pilot plant in certain factory, material adopts synthetic glass.BAF internal diameter 50cm, thickness 5cm, whole height 250cm; Bottom support floor height 50cm is that the even matter quartz sand of 20cm is formed by particle diameter; Filler floor height 100cm among the BAF I, filler floor height 150cm among the BAF II is the even matter volcanics granulometric composition of porous of 3~5cm by particle diameter, this volcanics particulate tap density is 750-780Kg/m
3, porosity is about 82%.Be that one diameter is set is 10cm at the 60cm place apart from the supporting layer height among the aerating filter I, the aerated conduit that it is the 5cm solarization air cap that 5 internal diameters are put in the bottom, and wherein built-in stainless steel mesh stop filler to enter.Aerating filter II middle distance supporting layer 40cm, 80cm, it is 10cm that the 120cm place is provided with three diameters respectively, it is 10cm that the bottom is equipped with 3 hole internal diameters respectively, 5 hole internal diameters are 5cm, 10 hole internal diameters are the aerated conduit of 2.5cm solarization air cap, and built-in stainless steel mesh stops filler can not enter aerated conduit with blocking pipe simultaneously.
The traditional C of a tandem type two-stage three-segment aerating biological filter pilot plant of the present invention and a same size/N pond concurrent BAF is moved half a year at sewage contrast in the laboratory in the institute, to COD, and NH
4 +-N, the average removal rate of SS is respectively 98.4%, 82.6%, and 97.5% and 63.7%, 72.5%, 94.3%.As can be seen, both are close to the clearance of SS, and tandem type two-stage three-segment aerating biological filter of the present invention has increased by 34.7% for the removal efficient of COD, and the removal efficient of ammonia nitrogen has increased by 10.1%, has therefore that higher COD removes and the performance of biological denitrificaion.
Claims (5)
1, a kind of tandem type two-stage three-segment aerating biological filter, Chi Tizhong in the filter tank, water inlet distribution pipe, air inlet distribution pipe, rising pipe, filtrate are arranged, it is characterized in that: the filter tank main body is made up of wastewater disposal basin, filter tank I, II and back-purge system, supporting layer (1) wherein is set in the I of filter tank constitutes bottom, biologic packing material layer (2) places on the supporting layer (1), and aerated conduit (4) is set in biologic packing material layer (2); Supporting layer (1) is set in the II of filter tank constitutes bottom, biologic packing material layer (3) places on the supporting layer (1), aerated conduit (5) in the middle of in biologic packing material layer (3), being provided with, and branch in the three-segment aerating pipeline (6) (7) (8); Back-purge system by air compressor, back flushing water shoot (9) and wastewater treatment after water shoot (10) form.
2,, it is characterized in that the composition in supporting layer district (1) is made up of even matter quartz sand according to the tandem type two-stage three-segment aerating biological filter of claim 1.
3, according to the tandem type two-stage three-segment aerating biological filter of claim 1, the composition that it is characterized in that biologic packing material layer (2) among the BAF I is by the even matter volcanics granulometric composition of porous; The composition of the biologic packing material layer (3) among the BAF II is by the even matter volcanics granulometric composition of porous; This volcanics particulate tap density is 750~780Kg/m
3, porosity is 82%~88%.
4, according to the tandem type two-stage three-segment aerating biological filter of claim 1, it is characterized in that putting 5~10 holes bottom aerated conduit (4) aerated conduit, and the built-in screen cloth of aerated conduit guarantees that the filler in the biologic packing material layer (2) can not enter aerated conduit with blocking pipe.
5,, it is characterized in that putting 3~5 holes bottom the aerated conduit aerated conduit (6) according to the tandem type two-stage three-segment aerating biological filter of claim 1; 5~10 holes are put in aerated conduit (7) bottom; 10~15 holes are put in aerated conduit (8) bottom; All built-in screen cloth in the aerated conduit (6) (7) (8) guarantees that the filler in the biologic packing material layer (3) can not enter aerated conduit with blocking pipe simultaneously.
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CNA2008101175455A CN101327989A (en) | 2008-08-01 | 2008-08-01 | Tandem type two-stage three-segment aerating biological filter |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101830607A (en) * | 2010-05-24 | 2010-09-15 | 哈尔滨工程大学 | Alternate two-stage aerobic membrane bioreactor |
CN102198971A (en) * | 2011-04-18 | 2011-09-28 | 哈尔滨工业大学深圳研究生院 | Upward flow biological aerated filter and aeration method thereof |
CN102297489A (en) * | 2011-06-08 | 2011-12-28 | 中北大学 | Air disinfection and humidification integrating device |
CN102666407A (en) * | 2009-12-01 | 2012-09-12 | 艾美特股份有限公司 | Method and apparatus for the bio-remediation of aqueous waste compositions |
CN102674616A (en) * | 2011-03-10 | 2012-09-19 | 苏州波塞顿节能环保工程有限公司 | Device for removing chlorine smell of swimming pool |
CN101698557B (en) * | 2009-11-09 | 2012-09-26 | 中国海洋石油总公司 | Combination treatment method of high-carbon high-nitrogen waste water |
CN107459152A (en) * | 2017-09-30 | 2017-12-12 | 邱学尧 | A kind of bio-contact oxidation filtering settling pond |
CN109665632A (en) * | 2019-02-25 | 2019-04-23 | 张强 | A kind of technique of fast degradation high concentration eutrophic sewage |
CN111056627A (en) * | 2018-10-17 | 2020-04-24 | 中电建生态环境集团有限公司 | Use method of biological aerated filter system for purifying black and odorous water body water quality |
-
2008
- 2008-08-01 CN CNA2008101175455A patent/CN101327989A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101698557B (en) * | 2009-11-09 | 2012-09-26 | 中国海洋石油总公司 | Combination treatment method of high-carbon high-nitrogen waste water |
CN102666407A (en) * | 2009-12-01 | 2012-09-12 | 艾美特股份有限公司 | Method and apparatus for the bio-remediation of aqueous waste compositions |
CN102666407B (en) * | 2009-12-01 | 2015-12-02 | 艾美特股份有限公司 | The bioremediation technique of liquid waste constituent and equipment thereof |
CN101830607A (en) * | 2010-05-24 | 2010-09-15 | 哈尔滨工程大学 | Alternate two-stage aerobic membrane bioreactor |
CN102674616A (en) * | 2011-03-10 | 2012-09-19 | 苏州波塞顿节能环保工程有限公司 | Device for removing chlorine smell of swimming pool |
CN102198971A (en) * | 2011-04-18 | 2011-09-28 | 哈尔滨工业大学深圳研究生院 | Upward flow biological aerated filter and aeration method thereof |
CN102198971B (en) * | 2011-04-18 | 2013-08-14 | 哈尔滨工业大学深圳研究生院 | Upward flow biological aerated filter and aeration method thereof |
CN102297489A (en) * | 2011-06-08 | 2011-12-28 | 中北大学 | Air disinfection and humidification integrating device |
CN107459152A (en) * | 2017-09-30 | 2017-12-12 | 邱学尧 | A kind of bio-contact oxidation filtering settling pond |
CN111056627A (en) * | 2018-10-17 | 2020-04-24 | 中电建生态环境集团有限公司 | Use method of biological aerated filter system for purifying black and odorous water body water quality |
CN109665632A (en) * | 2019-02-25 | 2019-04-23 | 张强 | A kind of technique of fast degradation high concentration eutrophic sewage |
CN109665632B (en) * | 2019-02-25 | 2021-08-10 | 张强 | Process for rapidly degrading high-concentration eutrophic sewage |
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