CN101580297A - Method for hanging membrane in sludge internal circulation biological filter - Google Patents
Method for hanging membrane in sludge internal circulation biological filter Download PDFInfo
- Publication number
- CN101580297A CN101580297A CNA2009100164284A CN200910016428A CN101580297A CN 101580297 A CN101580297 A CN 101580297A CN A2009100164284 A CNA2009100164284 A CN A2009100164284A CN 200910016428 A CN200910016428 A CN 200910016428A CN 101580297 A CN101580297 A CN 101580297A
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- filter
- sludge
- membrane
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- compressor machine
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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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- Activated Sludge Processes (AREA)
- Biological Treatment Of Waste Water (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a method for hanging a membrane in a sludge internal circulation biological filter. The method comprises the following steps: mixing acclimated sludge and wastewater, adding nutrition, and injecting into the biological filter for aeration; at the same time, stepwise starting internal circulation from bottom to top along the height direction of the filter, and making microorganisms fully contacted with a filter material and attached to the filter material for growth; after a period of culture, discharging mixed liquor, adding high concentration wastewater to continue aeration culture, and exciting the activity of the attached microorganisms; and after a membrane is formed, discharging the high concentration wastewater, continuously introducing water, and making the hydraulic load from low to high until forming a stable biological membrane. The method utilizes current disturbance action formed by the internal circulation of the sludge and water mixed liquor in the biological filter to overcome sludge deposition, strengthens the adhesive ability of the microorganisms on the surface of the filter material, improves local membrane hanging effect, and improves the whole membrane hanging efficiency of the filter and the shock load resistance of the biological membrane.
Description
One, technical field
The invention belongs to the environmental engineering water-treatment technology field, be applicable to various biological filters water technology.
Two, background technology
Biofilm is the key link that the biomembrance process treatment process starts fast, and efficient biofilm can shorten the start-up period of technology greatly.At present, the bibliographical information about biological filter bio-film colonization method research mainly contains " sealing and circulating method " and " the vexed method of exposing to the sun ".Publish thesis in " environmental engineering " magazine of 2003 the 21st the 2nd phases of volume and point out in " the novel colonization method of BAF reactor ", sealing and circulating method biofilm generally needs the time in 2-3 week just can finish, time-consuming length and circulatory pool need be set, operation inconvenience.The vexed method of exposing to the sun can make the biofilm time shorten to 3-4 days, and the microbial film adhere firmly, is difficult for being destroyed by recoil.Yet, in the vexed operating process of exposing to the sun of reality, because there is the sludgd deposition problem in the mobile interference that is subjected to the filler resistance of mud in the filter tank.Sludgd deposition causes the liquid phase biomass to reduce, and has influenced the whole biofilm efficient in filter tank.Simultaneously, bottom, middle part, the uneven biomass in top distribute and have formed different biofilm speed and microbial film distribution characteristics again, and this has direct influence for performance and the follow-up stability that technology starts the back overall performance.Improve aeration intensity and can play the effect of controlling sludgd deposition to a certain extent, but the high-solubility oxygen environment of supervening is bigger to the sludge characteristics influence, and inapplicable for being subjected to strict biological filtering tank process of controlling of dissolved oxygen such as short distance nitration and anaerobic technique.China's invention disclosed is applied for a patent " colonization method of filler in the biological contact oxidation pond ", publication number: CN 101041507A, disclose a kind of with the vexed bio-film colonization method of exposing to the sun and combining with the circulation cultivation, solved the microbial film skewness effectively, the technical problem of degree of fixation difference, but equally circulatory pool need be set.
For biological filtering tank process, on the vexed biofilm basis of exposing to the sun, study a kind of reinforcement sludge round-robin new bio colonization method and be significant.
Three, summary of the invention
The objective of the invention is to propose a kind of method of setting up internal recycle, improve the biofilm efficient of biological filter at technical problems such as sludgd deposition that occurs in the vexed biofilm process of exposing to the sun in biological filter and microbial film skewness.
The present invention mixes acclimation sludge and adds nutrition with waste water after, inject the filter tank and carry out vexed exposing to the sun, progressively start internal recycle from bottom to top, muddy water mixed solution is formed in the filter tank circulate along the filter tank short transverse.The present invention sets up auxiliary line between buffer layer zone, filter tank and filtrate different heights position, by the conveying realization closed cycle of pump.Mud mixed liquid is flowed out by the buffer zone arm, is transported to the different heights filter material layer through topping-up pump.Mixed solution the filter post in behind circular perforations pipe water distribution, bottom-up circulating.Perforated pipe is inboard to become the position of miter angle to open diameter 2-3mm circular hole with the outside with level.On the different filtrate height location auxiliary branch lines under meter and valve are installed.Mixed solution flow adjustable size, and along filter post short transverse reduces gradually from the bottom to top internal recycle flow.
The inventive method step is as follows:
(1) with acclimation sludge with to handle waste water and mixed in 1: 4 by volume, add 1-2% volume nutritive medium, final bacteria suspension sludge concentration is controlled at 3000mg/L;
(2) bacteria suspension that configures is injected the filter tank and guarantees that liquid level surpasses more than the buffer zone arm die 30cm, open air compressor machine and carry out aeration, short distance nitration technology dissolved oxygen concentration is controlled at 0.5-2mg/L, and common aerobic biofilter dissolved oxygen is controlled at 2.5-4.5mg/L;
(3) open buffer zone arm valve and filler bottom valve, the mixed solution outflow is also filled with auxiliary line.The operation topping-up pump, the circulation biofilm formally starts, and circular flow is controlled at 1.5m
3/ h;
(4) circulation was opened the filler middle valve after 2 hours, adjusted bottom and middle part circular flow and was respectively 1.0 and 0.5m
3/ h;
(5) circulated once more 2 hours after, open the filler upper valve, adjust bottom, middle part and top circular flow and be respectively 0.8,0.4 and 0.2m
3/ h;
(6) move 48 hours continuously after, suspend topping-up pump and air compressor machine, bacteria suspension is discharged;
(7) inject and to handle waste water and flood filter material layer and surpass 20cm, add the 6-8% nutritive medium, open air compressor machine once again continuously after vexed the exposing to the sun 48 hours, suspend air compressor machine, nutritive medium is discharged, at this moment the existing set attitude microorganisms of filter material surface;
(8) open air compressor machine once again, continuously water inlet, hydraulic load 30% during by normal operation increases at full capacity gradually, forms the stabilate film until filter material surface, and biofilm is finished.
Characteristics of the present invention are that the current perturbation action that utilizes internal recycle to form overcomes sludgd deposition and the enhancement microbiological adhesive ability at filter material surface, improve local biofilm effect by setting up return line, improve whole biofilm efficient of filter post and microbial film anti impulsion load performance thereby reach at different filtrate height place.
Four, description of drawings
Fig. 1 is a biological filter of the present invention biofilm process flow diagram.Wherein
1 is the ceramic grain filter layer; 2 is the cobble supporting layer; 3 are the buffering water layer; 4 is impeller pump; 5 is topping-up pump; 6 is air compressor machine; 7,8,9,10,11,12,13,14,15 is ball valve; 16,17,18,19,20 is under meter; 21,22,23 are tubular perforation water distributor; 24 is boring aeration pipe.
Five, embodiment
It is 4.55m that volume is adopted in test
3Pilot scale upflowing BAF Treating Municipal Sewage secondary effluent.Experimental installation is filtered column diameter 1.0m as shown in Figure 1, and high 6.5m, filler are haydite, and loading height 4.0m divides into 30cm cobble supporting layer.40cm highly locates to set out water pipe apart from the packing layer top, and pipeline links to each other with topping-up pump.The topping-up pump export pipeline is divided into 3 branch roads and leads to different filtrate height aspects respectively, water distributor 21,22, and 23 respectively apart from packing layer top 1.0,2.2 and 3.5m (from up to down).Under meter and ball valve all are housed on three road arms, and temperature of reaction is 16.7-26.5 ℃, waste water ph 7.0 ± 0.1.
Get one week of activated sludge acclimatization from the aeration tank, municipal sewage plant, sludge concentration is controlled at 6000-8000mg/L.Acclimation sludge and municipal effluent secondary effluent were mixed in 1: 4 by volume, and add the nutritive medium of 1-2% volume, nutrient composition is respectively: ammonium sulfate 36g/L, sodium bicarbonate 80g/L, dipotassium hydrogen phosphate 2.5g/L, micro-0.1mL/L.By impeller pump 4 mud mixed liquid is injected the filter tank, valve-off 7.Open air compressor machine, air flow quantity is adjusted into 0.8m
3/ h, dissolved oxygen is controlled at about 2-3mg/L.After opening valve 9,12, the operation topping-up pump, mud mixed liquid is flowed out by the buffer zone arm, carries through topping-up pump, goes into the filter tank by water distributor 23 foldbacks, and the water flow of water distributor 23 is controlled at 1.5m
3/ h.Continue circulation after 2 hours, open valve 11, water distributor 22 and 23 water flow adjustment are respectively 0.5 and 1.0m
3/ h.After circulating once more 2 hours, open valve 10, adjust water distributor 21,22,23 water flows and be respectively 0.2,0.4 and 0.8m
3/ h.Operation suspended topping-up pump and air compressor machine after 48 hours continuously, opened valve 13, and mud mixed liquid is emitted.Valve-off 10,11,12 and 13, re-inject secondary effluent to flooding filtrate and exceeding 20cm by impeller pump 4, add the 6-8% nutritive medium, open air compressor machine once more, continuously vexed exposing to the sun 48 hours.Stop air compressor machine, open valve 13#, nutritive medium is emitted.Valve-off 13 is opened valve 14 and 15, with 0.6m
3/ h feeds secondary effluent continuously, increases flooding velocity after 1 day to 1.2m
3/ h through after 1 day, increases to 2m again
3/ h.Water inlet COD concentration is 20.2-31.4mg/L, and ammonia nitrogen concentration is 9.0-25.4mg/L.
Waste water begins to handle the same day, ammonia nitrogen removal frank 〉=90%, and the COD clearance reaches about 30%.After 3 days, ammonia nitrogen removal frank reaches more than 95%, and the COD clearance is about 40%.The bottom, middle part and top haydite surface biological film microscopy are observed flagellate, ciliate, campanularian and a small amount of wheel animalcule etc. illustrate that biofilm development is perfect.Subsequently, this technology is 0.8m at aeration rate
3/ h (dissolved oxygen concentration 2-3mg/L), flooding velocity is 2m
3/ h, steady running is 335 days under the condition in 1 time/48 hours recoil cycle, and average ammonia nitrogen goes out water concentration≤1.5mg/L, COD≤15mg/L, biofilm development is firm and biomass stable.
Claims (1)
1, a kind of method for hanging membrane in sludge internal circulation biological filter, after acclimation sludge mixed with waste water and adding nutrition, inject the filter tank and carry out vexed exposing to the sun, it is characterized in that being provided with return line and progressively starting internal recycle from bottom to top along the filter tank short transverse at different filtrate height place, strengthen muddy water mixed solution and circulate, its method steps is as follows:
(1) with acclimation sludge with to handle waste water and mixed in 1: 4 by volume, add 1-2% volume nutritive medium, final bacteria suspension sludge concentration is controlled at 3000mg/L;
(2) bacteria suspension that configures is injected the filter tank and guarantees that liquid level surpasses more than the buffer zone arm die 30cm, open air compressor machine and carry out aeration, short distance nitration technology dissolved oxygen concentration is controlled at 0.5-2mg/L, and common aerobic biofilter dissolved oxygen is controlled at 2.5-4.5mg/L;
(3) open buffer zone arm valve and filtrate bottom valve, the mixed solution outflow is also filled with auxiliary line.The operation topping-up pump, the circulation biofilm formally starts, and circular flow is controlled at 1.5m3/h;
(4) circulation was opened the filtrate middle valve after 2 hours, adjusted bottom and middle part circular flow and was respectively 1.0 and 0.5m
3/ h;
(5) circulated once more 2 hours after, open the filtrate upper valve, adjust bottom, middle part and top circular flow and be respectively 0.8,0.4 and 0.2m
3/ h;
(6) move 48 hours continuously after, suspend topping-up pump and air compressor machine, bacteria suspension is discharged;
(7) inject and to handle waste water and flood filter material layer and surpass 20cm, add the 6-8% nutritive medium, open air compressor machine once again continuously after vexed the exposing to the sun 48 hours, suspend air compressor machine, nutritive medium is discharged; At this moment filter material surface has set attitude microorganisms;
(8) open air compressor machine once again, continuously water inlet, hydraulic load 30% during by normal operation increases at full capacity gradually, forms the stabilate film until filter material surface, and biofilm is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009100164284A CN101580297B (en) | 2009-06-26 | 2009-06-26 | Method for hanging membrane in sludge internal circulation biological filter |
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|---|---|---|---|
| CN2009100164284A CN101580297B (en) | 2009-06-26 | 2009-06-26 | Method for hanging membrane in sludge internal circulation biological filter |
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| CN101580297A true CN101580297A (en) | 2009-11-18 |
| CN101580297B CN101580297B (en) | 2010-12-01 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870516A (en) * | 2010-06-01 | 2010-10-27 | 浙江大学 | Quick starting process of biofilm reactor in oligotrophic habitat |
| CN101913710A (en) * | 2010-08-04 | 2010-12-15 | 中国海洋大学 | Suspended packing microbial quick film forming method |
| CN102502955A (en) * | 2011-12-26 | 2012-06-20 | 唐山海港开发区污水处理有限公司 | Activated sludge culture method suitable for high-salt sewage |
| CN103472217A (en) * | 2013-09-10 | 2013-12-25 | 金贝尔(福建)水环境工程有限公司 | Quick evaluation method and quick evaluation device for ammonia nitrogen removal characteristics of different biological fillings |
| CN104671409A (en) * | 2014-12-31 | 2015-06-03 | 浙江至美环境科技有限公司 | Method for treating sewage by using biological fluidized bed |
| CN104973683A (en) * | 2015-04-01 | 2015-10-14 | 浙江海拓环境技术有限公司 | Filler film formation method of electroplating wastewater MBBR treatment process |
| CN106145349A (en) * | 2016-04-21 | 2016-11-23 | 内蒙古科技大学 | The method that calcium silicates improves wastewater treatment efficiency is added in A A O system |
| CN112429848A (en) * | 2020-12-04 | 2021-03-02 | 安徽中环环保科技股份有限公司 | Dredged sediment quick start A2Method for O system and method for judging successful start |
| CN112441662A (en) * | 2020-12-04 | 2021-03-05 | 安徽中环环保科技股份有限公司 | Method for quickly starting SBR bioreactor and method for judging successful starting |
| CN112897823A (en) * | 2021-04-25 | 2021-06-04 | 上海市环境科学研究院 | Biogas slurry biological trickling ammonia nitrogen nitration treatment device and method adopting micro-foam filler |
| CN113274873A (en) * | 2021-05-31 | 2021-08-20 | 上海市环境科学研究院 | Livestock and poultry field ammonia control deodorization device and method adopting low-pressure-drop micro-foam composite filler |
| US11168012B2 (en) | 2019-01-21 | 2021-11-09 | Nanjing University | Method for realizing rapid startup of denitrification biofilter |
| CN113772805A (en) * | 2021-09-17 | 2021-12-10 | 海口永祺环保设备技术有限公司 | Biological biofilm culturing device for rural sewage treatment tank |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100478287C (en) * | 2007-03-09 | 2009-04-15 | 山西大学 | Film coating method of filling material in biological contact oxidation pond |
| CN101077472A (en) * | 2007-06-16 | 2007-11-28 | 中国矿业大学 | Biological dripping and filtering system for purifying organic waste gases and method quick-speed preparing mvcoderm |
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2009
- 2009-06-26 CN CN2009100164284A patent/CN101580297B/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870516A (en) * | 2010-06-01 | 2010-10-27 | 浙江大学 | Quick starting process of biofilm reactor in oligotrophic habitat |
| CN101913710A (en) * | 2010-08-04 | 2010-12-15 | 中国海洋大学 | Suspended packing microbial quick film forming method |
| CN101913710B (en) * | 2010-08-04 | 2011-10-05 | 中国海洋大学 | Suspended packing microbial quick film forming method |
| CN102502955A (en) * | 2011-12-26 | 2012-06-20 | 唐山海港开发区污水处理有限公司 | Activated sludge culture method suitable for high-salt sewage |
| CN103472217A (en) * | 2013-09-10 | 2013-12-25 | 金贝尔(福建)水环境工程有限公司 | Quick evaluation method and quick evaluation device for ammonia nitrogen removal characteristics of different biological fillings |
| CN104671409A (en) * | 2014-12-31 | 2015-06-03 | 浙江至美环境科技有限公司 | Method for treating sewage by using biological fluidized bed |
| CN104973683A (en) * | 2015-04-01 | 2015-10-14 | 浙江海拓环境技术有限公司 | Filler film formation method of electroplating wastewater MBBR treatment process |
| CN106145349B (en) * | 2016-04-21 | 2019-04-05 | 内蒙古科技大学 | Calcium silicates is added into A-A-O system improves the method for wastewater treatment efficiency |
| CN106145349A (en) * | 2016-04-21 | 2016-11-23 | 内蒙古科技大学 | The method that calcium silicates improves wastewater treatment efficiency is added in A A O system |
| US11168012B2 (en) | 2019-01-21 | 2021-11-09 | Nanjing University | Method for realizing rapid startup of denitrification biofilter |
| CN112429848A (en) * | 2020-12-04 | 2021-03-02 | 安徽中环环保科技股份有限公司 | Dredged sediment quick start A2Method for O system and method for judging successful start |
| CN112441662A (en) * | 2020-12-04 | 2021-03-05 | 安徽中环环保科技股份有限公司 | Method for quickly starting SBR bioreactor and method for judging successful starting |
| CN112897823A (en) * | 2021-04-25 | 2021-06-04 | 上海市环境科学研究院 | Biogas slurry biological trickling ammonia nitrogen nitration treatment device and method adopting micro-foam filler |
| CN113274873A (en) * | 2021-05-31 | 2021-08-20 | 上海市环境科学研究院 | Livestock and poultry field ammonia control deodorization device and method adopting low-pressure-drop micro-foam composite filler |
| CN113772805A (en) * | 2021-09-17 | 2021-12-10 | 海口永祺环保设备技术有限公司 | Biological biofilm culturing device for rural sewage treatment tank |
| CN113772805B (en) * | 2021-09-17 | 2023-04-25 | 海口永祺环保设备技术有限公司 | Biological film hanging device for rural sewage treatment tank |
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| CN101580297B (en) | 2010-12-01 |
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