CN103623692B - A kind of method of blanket waste gas biofiltration device and process waste gas thereof - Google Patents
A kind of method of blanket waste gas biofiltration device and process waste gas thereof Download PDFInfo
- Publication number
- CN103623692B CN103623692B CN201310633014.2A CN201310633014A CN103623692B CN 103623692 B CN103623692 B CN 103623692B CN 201310633014 A CN201310633014 A CN 201310633014A CN 103623692 B CN103623692 B CN 103623692B
- Authority
- CN
- China
- Prior art keywords
- nutrient solution
- blanket
- waste gas
- filler
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The invention discloses a kind of method of blanket waste gas biofiltration device and process waste water thereof, described filter comprises nutrient solution spray chamber, filler chamber, nutrient solution recovery room, air inlet, exhaust outlet, air-introduced machine, compression pump, nutrient solution entrance, nutrient solution outlet and nutrient solution collecting pit, the upper end of described blanket waste gas biofiltration device is nutrient solution spray chamber, the lower end of blanket waste gas biofiltration device is that nutrient solution reclaims room, and described filler chamber reclaims between room at nutrient solution spray chamber and nutrient solution; Described filler chamber vertical hanging some blocks of blanket porous aggregates, described filling surface inoculation of activated-sludge or exhaust-gas treatment are with microorganism, and described blanket porous aggregate thickness is 1 ~ 100mm, and described adjacent blanket porous aggregate level interval is 1 ~ 10mm; The present invention has simple to operate, the advantage that energy consumption is low, solves the filler blockage problem of traditional biological filtering technique, and when air speed is 0.07m/s, the Pressure Drop of unit packed height is stabilized within 400Pa/m always.
Description
(1) technical field
The present invention relates to a kind of method of emission-control equipment and process waste gas, in particular to a kind of blanket waste gas biofiltration device and the method processing waste gas thereof, the multiple pollutants such as hydrogen sulfide, ammonia and volatile organic matter can be removed, be applicable to process industrial waste gas, rubbish and sewage foul smell.
(2) background technology
Biological treatment technology for waste gas is because having the incomparable low cost of conventional method (as absorption and sorption, burning etc.), the advantage such as environmentally friendly, become a new and high technology promoted rapidly in waste gas purification field gradually, especially at low concentration, to administer compared with the organic exhaust gas of atm number and foul gas.Compared with more external developed countries, although China there has been certain Research foundation, its practical application is still in the junior stage.
At present, gaseous contaminant biologic treating technique Study and appliance type mainly contains three classes, i.e. zinc cation pond, biological filter and bio-trickling filter.These technology have respective feature, as good in zinc cation pond absorbability, but unit volume biomass is little, processing load is low, at present less application; Biological filter (being applied to pumping plant room foul smell, municipal sewage odor purification at present) does not need spraying nutrient solution, and equipment is simple, and treating capacity is comparatively large, management maintenance is convenient, but artificial control is poor, the pressure loss is large, life cycle is short; Bio-trickling filter (being generally applied to industrial waste gas purifying at present) can be circulated by nutrient solution and regulate nutrient in time, and controllability is strong, and processing load is high, is especially suitable for the volatile organic matter compared with difficult degradation, but there is the problem such as packed bed and circulatory system blocking.
Generally speaking, bio-filter technology packing layer Pressure Drop is main relevant with the air speed in waste gas again filter tank, and air speed is higher, and Pressure Drop is larger, and the air-introduced machine power of required like this air-supply is higher, and energy loss is also larger.Simultaneously along with the operation of biofilter, microbial adhesion forms biomembrane on filler, carries out metabolism and rise in value in microbial decomposition waste gas while pollutant.Now, biomembrane can be more and more thicker, causes air duct more and more narrow, and air velocity is along with rising, and the pressure loss is also corresponding to be increased.The aging death of meeting after growth of microorganism to certain hour, dead biomembrane can come off from filler.Filler due to traditional biological filtering technique is loose piling up in biofilter substantially, and space is smaller, causes the biomembrane come off to be accumulated in filler gap like this, thus blocking filler, cause gas passage further to diminish, the aggravation pressure loss increases.If come off, biomembrane does not process, and the gas flow designed can be caused cannot to meet the needs of design and actual treatment because packing layer Pressure Drop is too large like this.
How to overcome the defects such as traditional biological filtering technique bed blocking, explore the biologic treating technique of new generation of the advantage that has more, become and propose starting point of the present invention.
In the running of biological filter, filler blocking not only causes the filtering ponds pressure loss to increase, and the exhausted air quantity of actual treatment reduces, thus affects Practical Project operational effect.Biomembrane practical operation needing periodic cleaning filler or come off mechanically on filler, causes Engineering operation difficulty.The series of problems caused is blocked in order to solve filler, this invention exploits a kind of novel blanket biologic packing material that can solve filler blockage problem, air-flow not only can longitudinal diffusion mass transfer but also can horizontal proliferation mass transfer, the biomembrane that simultaneously comes off can be fallen into bottom filtering ponds from the gap between blanket filler, thus avoids biomembrane to be deposited on filler blocking filler.
(3) summary of the invention
The object of the invention is to provide a kind of method of blanket waste gas biofiltration device and process waste gas thereof, solves filler blocking in conventional exhaust bio-filter technology and causes the problems such as the pressure loss is large, fluctuation of service.
The technical solution used in the present invention is:
The invention provides a kind of blanket waste gas biofiltration device, described filter comprises nutrient solution spray chamber, filler chamber, nutrient solution recovery room, air inlet, exhaust outlet, air-introduced machine, compression pump, nutrient solution entrance, nutrient solution outlet and nutrient solution collecting pit, the upper end of described blanket waste gas biofiltration device is nutrient solution spray chamber, the lower end of blanket waste gas biofiltration device is that nutrient solution reclaims room, and described filler chamber reclaims between room at nutrient solution spray chamber and nutrient solution; Described nutrient solution spray chamber top is provided with exhaust outlet, and side is provided with nutrient solution entrance, and inside is provided with spray system; Described nutrient solution reclaims side, room and is provided with air inlet and nutrient solution outlet, described air inlet is communicated with air-introduced machine by pipeline, described nutrient solution outlet is communicated with nutrient solution collecting pit, described nutrient solution collecting pit is by compression pump and nutrient solution inlet communication, described nutrient solution import communicates with spray system, described filler chamber vertical hanging some blocks of blanket porous aggregates, described filling surface inoculation of activated-sludge or exhaust-gas treatment are with microorganism, described blanket porous aggregate thickness is 1 ~ 100mm, and described adjacent blanket porous aggregate level interval is 1 ~ 10mm.
Further, the aperture of described blanket porous aggregate is 2 ~ 10mm.
Further, described adjacent blanket porous aggregate level interval is 2 ~ 5mm.
Further, described blanket porous aggregate thickness is 10 ~ 20mm.
Further, described blanket porous aggregate is aperture is net (the netted blanket porous aggregate of preferred nylon or urethane knit) prepared by 2 ~ 10mm high-molecular organic material, and filler proportion is 0.65 ~ 1.28g/cm
3.
Further, described filler chamber ratio of height to diameter is (1 ~ 4): 1.
Further, the middle part that described filler chamber and nutrient solution spray chamber and nutrient solution reclaim contact position, room and filler chamber arranges crossbeam respectively, the top of described blanket filler is fixed on the crossbeam of filler chamber and nutrient solution spray chamber contact position, the bottom of described blanket filler is fixed on filler chamber and nutrient solution reclaims on the crossbeam of contact position, room, and the centre of described blanket filler is fixed on the crossbeam of filler chamber middle part.
Further, described air inlet is positioned at nutrient solution and reclaims top, room, and distance nutrient solution reclaims bottom, room 0.2 ~ 2m, and described nutrient solution outlet distance nutrient solution reclaims bottom, room 0 ~ 0.5m, described nutrient solution entrance distance nutrient solution spray chamber top 0.3 ~ 1.5m.
The present invention also provides a kind of method utilizing described blanket waste gas biofiltration device process waste gas, and described method is: open air-introduced machine, and (preferably containing the waste gas of dimethylbenzene, xylene concentration is 1500 ~ 2000mg/m to waste gas
3) enter blanket waste gas biofiltration device by air-introduced machine, flow through filler chamber and discharged by exhaust outlet, nutrient solution in nutrient solution collecting pit is sprayed onto filled chamber by nutrient solution spray system by opening pressure pump simultaneously, the nutrient solution of nutrient solution through filler chamber's inflow exhaust gas biofiltration device lower end reclaims indoor, then enters nutrient solution collecting pit by nutrient solution outlet; The ratio of described nutrient solution spray flow and exhaust gas flow is (1 ~ 30): 10000, and described nutrient solution contains the inorganic compound of N, P and the mixing liquid containing C, H, O organic compound.Preferably, nutrient solution of the present invention adopts the configuration of starch, ammonium chloride, potassium hydrogen phosphate to form, and starch concentration is 800mg/L, total phosphorus is 6.8mg/L, ammonia nitrogen concentration is 90mg/L, pH5.6 ~ 6.0.
Further, the ratio of described nutrient solution spray flow and exhaust gas flow is (5 ~ 10): 10000.
Waste gas of the present invention can enter and be discharged by top bottom filter, also can enter from side, filter lower end and be discharged by the opposite side upper end of symmetry, in described waste gas, pollutant is by being attached to the microbial decomposition hung on blanket porous aggregate, simultaneously from filter top spraying nutrient solution, supply bacteria metabolism is used.Described spraying nutrient solution flows through filler chamber and together enters nutrient solution recovery room together with the microorganism sludge that filler comes off, nutrient solution collecting pit is entered again by nutrient solution outlet, microorganism sludge in nutrient solution collecting pit needs periodic cleaning, and nutrient solution needs regular update.
The microorganism that described filler adheres to, come from the activated sludge of biological filter initial operating stage inoculation, this activated sludge derives from the microorganism sludge of municipal sewage plant or industrial wastewater biostation or the microorganism of pure culture.
Compared with prior art, beneficial effect of the present invention is mainly reflected in: because the filler in traditional biological filter tank falls apart to pile up in filter tank, aging biomembrane is from can from the filler below filler space falls to after filler comes off, and be deposited in filler top and roll up larger mud group gradually, finally cause filler interstitial channels to narrow to arrange and block completely.The blanket porous aggregate level interval that blanket biofiltration device internal vertical of the present invention hangs is larger, the biomembrane come off directly falls to bottom biofiltration device and exports discharge by absorbing liquid from filler space, can not be accumulated on filler and block filler space or air duct.Therefore, the present invention has simple to operate, the advantage that energy consumption is low, solve the filler blockage problem of traditional biological filtering technique, when air speed is 0.07m/s, the Pressure Drop of unit packed height is stabilized within 400Pa/m always, be equivalent to even lower than the normal operating pressure of current traditional biological filtering technique, and traditional biological filtering technique is when occurring that filler blocks, Pressure Drop can reach more than 4000pa/m (bibliography 1-3, document 1: Zhou Weilie, Wang Jiade, Zheng Rongqin, Chen Jianmeng. the biological film-forming process of tower packing and characterisitic parameter research thereof. Zhejiang Polytechnical University's journal, 1999, 27 (4): 300 ~ 305.
Document 2: Guo Bingbing, Wang Yuren, He Fengyou, Mu Guizhi. the medium-sized test of Bio-deodorization of Waste Gas Escaping From Wastewater Treatment In Refinery. petroleum refining and chemical industry, 2005,36(5): 66 ~ 70.
Document 3: Gai Lina. the research of styrene organic exhaust gas bio-trickling purification method. Qingdao Technological University's academic dissertation, 2006.）。
(4) accompanying drawing explanation
Fig. 1 is blanket waste gas biofiltration device structural representation: 1-nutrient solution spray chamber, 2-filler chamber, and 3-nutrient solution reclaims room, 4-air inlet, 5-exhaust outlet, the import of 6-nutrient solution, 7-nutrient solution outlet, 8-blanket filler, 9-spray system, 10-nutrient solution collecting pit, 11-air-introduced machine, 12-compression pump.
(5) detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in this:
Embodiment 1:
With reference to Fig. 1, described blanket waste gas biofiltration device comprises nutrient solution spray chamber 1, filler chamber 2, nutrient solution recovery room 3, air inlet 4, exhaust outlet 5, nutrient solution entrance 6, nutrient solution outlet 7 and nutrient solution collecting pit 10, the upper end of described blanket waste gas biofiltration device is nutrient solution spray chamber 1, the lower end of blanket waste gas biofiltration device is that nutrient solution reclaims room 3, and described filler chamber 2 reclaims between room at nutrient solution spray chamber and nutrient solution, described nutrient solution spray chamber 1 top is provided with exhaust outlet 5, and side is provided with nutrient solution entrance 6, and inside is provided with spray system 9, described nutrient solution reclaims side, room 3 and is provided with air inlet 4 and nutrient solution outlet 7, described air inlet 4 is communicated with air-introduced machine 11 by pipeline, described nutrient solution outlet 7 is communicated with nutrient solution collecting pit 10, described nutrient solution collecting pit 10 is communicated with nutrient solution import 6 by compression pump 12, described nutrient solution import 6 communicates with spray system 9, described filler chamber 2 vertical hanging 2 blocks of blanket porous aggregates 8, material is Polyurethane, described filling surface inoculation of activated-sludge or exhaust-gas treatment are with microorganism, described inoculation method is: after pouring microorganism to be seeded or municipal wastewater treatment plant activated sludge into nutrient solution collecting pit with the inoculum concentration of 2g/L packing volume, by elevator pump, the microorganism in nutrient solution collecting pit and nutrient solution are together fed biofiltration device.The middle part that described filler chamber and nutrient solution spray chamber and nutrient solution reclaim contact position, room and filler chamber arranges stainless steel crossbeam respectively, the top of described blanket filler is fixed on the crossbeam of filler chamber and nutrient solution spray chamber contact position, the bottom of described blanket filler is fixed on filler chamber and nutrient solution reclaims on the crossbeam of contact position, room, and the centre of described blanket filler is fixed on the crossbeam of filler chamber middle part.
Described blanket biofiltration device filler chamber dischargeable capacity is 20L, and described blanket porous aggregate thickness is 50mm, and vertical length is 1m, and lateral length is 0.2m, and described adjacent blanket porous aggregate level interval is 2mm; Described air inlet is positioned at nutrient solution and reclaims top, room, and distance nutrient solution reclaims bottom, room 0.2m, and described nutrient solution outlet distance nutrient solution reclaims bottom, room 0.02m, described nutrient solution entrance distance nutrient solution spray chamber top 0.3m; Described spray system is made up of pipeline and shower nozzle, and shower nozzle is the DN15 perforated pipe of polypropylene material, distance filler chamber top 0.2m.Nutrient solution collecting pit is long × wide × high: 0.3m × 0.3m × 0.4m.
The method of process waste gas: open air-introduced machine, waste gas enters blanket waste gas biofiltration device by air-introduced machine, flow through filler chamber and discharged by exhaust outlet, nutrient solution in nutrient solution collecting pit is sprayed onto filled chamber by nutrient solution spray system by opening pressure pump simultaneously, the nutrient solution of nutrient solution through filler chamber's inflow exhaust gas biofiltration device lower end reclaims indoor, then enters nutrient solution collecting pit by nutrient solution outlet; The ratio of described nutrient solution spray flow and exhaust gas flow is 3:10000, described nutrient solution adopts the configuration of starch, ammonium chloride, potassium hydrogen phosphate to form, starch concentration is 800mg/L, total phosphorus is 6.8mg/L, ammonia nitrogen concentration is 90mg/L, pH5.6 ~ 6.0, and the nutrient solution in nutrient solution collecting pit upgrades 2000ml every day.
The waste gas object of test purification is the waste gas containing dimethylbenzene, and xylene concentration is 1500 ~ 2000mg/m
3, result of the test is in table 1.In blanket biofiltration device running, improve charge flow rate and processing load according to dimethylbenzene treatment effeciency, initial start stage dimethylbenzene processing load controls as 20g/ (m
3h), nutrient solution spray flow is 0.26L/h, and the ratio of nutrient solution spray flow and exhaust gas flow is 1:1000, and when dimethylbenzene clearance reaches more than 90%, gas flow improves 50%(and gas flow 390L/h, and nutrient solution spray flow is 0.39L/h); When dimethylbenzene processing load reaches 40g/ (m
3h) time, gas flow reaches 90% along with dimethylbenzene clearance and improves 30%(and gas flow 520L/h, and nutrient solution spray flow is 0.52L/h); When dimethylbenzene processing load reaches 60 ~ 75g/ (m
3h), time, start normally to run, now, gas flow 780L/h, nutrient solution spray flow is 0.78L/h, and evaluates its runnability.Through the Start-up and operating performance of 6 months, dimethylbenzene clearance was stabilized in 90% ~ 92%, and within pressure differential is stabilized in 220pa, now in emission gases, xylene concentration is 120 ~ 200mg/m
3.
Above result of study is compared with existing bio-filter technology, and under identical air speed, equal removal efficiency and processing load, the pressure differential of biofiltration device is stabilized within 220pa/m substantially, lower than traditional biological filtering technique, does not occur filler clogging.
Table 1 experimental test data
Claims (7)
1. a blanket waste gas biofiltration device, described filter comprises nutrient solution spray chamber, filler chamber, nutrient solution recovery room, air inlet, exhaust outlet, nutrient solution entrance, air-introduced machine, compression pump, nutrient solution outlet and nutrient solution collecting pit, the upper end of described blanket waste gas biofiltration device is nutrient solution spray chamber, the lower end of blanket waste gas biofiltration device is that nutrient solution reclaims room, and described filler chamber reclaims between room at nutrient solution spray chamber and nutrient solution, described nutrient solution spray chamber top is provided with exhaust outlet, and side is provided with nutrient solution entrance, and inside is provided with spray system, described nutrient solution reclaims side, room and is provided with air inlet and nutrient solution outlet, described air inlet is communicated with air-introduced machine by pipeline, described nutrient solution outlet is communicated with nutrient solution collecting pit, described nutrient solution collecting pit is by compression pump and nutrient solution inlet communication, described nutrient solution import communicates with spray system, it is characterized in that described filler chamber vertical hanging some blocks of blanket porous aggregates, described filling surface inoculation of activated-sludge or exhaust-gas treatment are with microorganism, described blanket porous aggregate is aperture is net prepared by 2 ~ 10mm high-molecular organic material, filler proportion is 0.65 ~ 1.28g/cm
3, described blanket porous aggregate thickness is 1 ~ 100mm, and described adjacent blanket porous aggregate level interval is 1 ~ 10mm.
2. blanket waste gas biofiltration device as claimed in claim 1, is characterized in that described adjacent blanket porous aggregate level interval is 2 ~ 5mm.
3. blanket waste gas biofiltration device as claimed in claim 1, is characterized in that described blanket porous aggregate thickness is 10 ~ 20mm.
4. blanket waste gas biofiltration device as claimed in claim 1, it is characterized in that the middle part that described filler chamber and nutrient solution spray chamber and nutrient solution reclaim contact position, room and filler chamber arranges crossbeam respectively, the top of described blanket filler is fixed on the crossbeam of filler chamber and nutrient solution spray chamber contact position, the bottom of described blanket filler is fixed on filler chamber and nutrient solution reclaims on the crossbeam of contact position, room, and the centre of described blanket filler is fixed on the crossbeam of filler chamber middle part.
5. blanket waste gas biofiltration device as claimed in claim 1, it is characterized in that described air inlet is positioned at nutrient solution and reclaims top, room, distance nutrient solution reclaims bottom, room 0.2 ~ 2m, described nutrient solution outlet distance nutrient solution reclaims bottom, room 0 ~ 0.5m, described nutrient solution entrance distance nutrient solution spray chamber top 0.3 ~ 1.5m.
6. one kind utilizes the method for blanket waste gas biofiltration device process waste gas described in claim 1, it is characterized in that described method is: open air-introduced machine, waste gas enters blanket waste gas biofiltration device by air-introduced machine, flow through filler chamber and discharged by exhaust outlet, nutrient solution in nutrient solution collecting pit is sprayed onto filled chamber by nutrient solution spray system by opening pressure pump simultaneously, the nutrient solution of nutrient solution through filler chamber's inflow exhaust gas biofiltration device lower end reclaims indoor, then enters nutrient solution collecting pit by nutrient solution outlet; The ratio of described nutrient solution spray flow and exhaust gas flow is 1 ~ 30:10000, and described nutrient solution contains the inorganic compound of N, P and the mixing liquid containing C, H, O organic compound.
7. the method for blanket waste gas biofiltration device process waste gas as claimed in claim 6, other are that the ratio of described nutrient solution spray flow and exhaust gas flow is 5 ~ 10:10000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633014.2A CN103623692B (en) | 2013-11-29 | 2013-11-29 | A kind of method of blanket waste gas biofiltration device and process waste gas thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310633014.2A CN103623692B (en) | 2013-11-29 | 2013-11-29 | A kind of method of blanket waste gas biofiltration device and process waste gas thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103623692A CN103623692A (en) | 2014-03-12 |
| CN103623692B true CN103623692B (en) | 2015-10-28 |
Family
ID=50205359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310633014.2A Active CN103623692B (en) | 2013-11-29 | 2013-11-29 | A kind of method of blanket waste gas biofiltration device and process waste gas thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103623692B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106552503A (en) * | 2015-09-24 | 2017-04-05 | 魏晓明 | Integral biological oxidative deamination device of air and method |
| CN105819574B (en) * | 2016-05-11 | 2018-08-24 | 上海泓济环保科技股份有限公司 | The biochemical equipment and its processing method of integrated processing exhaust gas and sewage |
| CN105903341A (en) * | 2016-07-05 | 2016-08-31 | 贵州蔚蓝环保有限公司 | Biological deodorization drip filter box for purifying malodorous gases |
| CN106000082B (en) * | 2016-07-13 | 2019-05-24 | 盐城工学院 | A kind of bio-trickling filter with rotary spraying device |
| CN109319947A (en) * | 2018-11-05 | 2019-02-12 | 杨德俊 | A kind of biofilm reactor |
| CN109231498A (en) * | 2018-11-05 | 2019-01-18 | 杨德俊 | A method of utilizing biological film process organic sewage |
| CN109173702A (en) * | 2018-11-05 | 2019-01-11 | 杨德俊 | A method of utilizing biological film process organic principle exhaust gas |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635665Y (en) * | 2003-07-09 | 2004-08-25 | 苏亿位 | Composite water treatment filling |
| CN200966983Y (en) * | 2006-11-21 | 2007-10-31 | 武汉理工大学 | Component type biology deodorization filtering tower |
-
2013
- 2013-11-29 CN CN201310633014.2A patent/CN103623692B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2635665Y (en) * | 2003-07-09 | 2004-08-25 | 苏亿位 | Composite water treatment filling |
| CN200966983Y (en) * | 2006-11-21 | 2007-10-31 | 武汉理工大学 | Component type biology deodorization filtering tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103623692A (en) | 2014-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103623692B (en) | A kind of method of blanket waste gas biofiltration device and process waste gas thereof | |
| CN102895867B (en) | Biochemical waste gas deodorization purification apparatus and biological deodorization method | |
| CN204097200U (en) | A kind of underflow type artificial wet land device of removable combination | |
| CN204474503U (en) | A kind of country sewage drips the ecological canal treatment system of filter | |
| CN107721101B (en) | Micro-power sewage integrated treatment equipment | |
| CN103585880A (en) | Variable-diameter biological drip-filter device for gas processing | |
| CN105601043B (en) | A kind of domestic sewage of villages and small towns ecology microkinetic processing system | |
| CN203540329U (en) | Reducing biological drop-filtering device for treating gas | |
| CN206089379U (en) | Sewage treatment plant is used at distributed family | |
| CN108211774A (en) | Biological deodorizing device and apply its deodorizing method | |
| CN205382060U (en) | Villages and small towns domestic sewage ecologization oligodynamic treatment system | |
| CN2695090Y (en) | Biological drip filtering tower waste gas puritying and deodour equipment | |
| CN206082154U (en) | Save tower biological filter exhaust treatment device who takes up an area of | |
| CN210001724U (en) | Building ecosystem | |
| CN113371927A (en) | Be adapted to small-size distributed rural domestic sewage's processing system | |
| CN207451867U (en) | A kind of lamination building block system sewage-treatment plant | |
| CN106268286B (en) | Gaseous biofiltration processing system of municipal refuse landfill | |
| CN206262352U (en) | A kind of bio-trickling filter organic exhaust gas odor removal | |
| CN205925432U (en) | Gaseous biofiltration processing system of city landfill | |
| CN110510829A (en) | A kind of sewage disposal device promoting denitrification ability | |
| CN217148732U (en) | Sewage treatment system based on modularization constructed wetland | |
| CN212236723U (en) | Industrial wastewater odor treatment system | |
| CN204607695U (en) | Anaerobic biological treatment pond | |
| CN204779227U (en) | Processing system is synthesized to high -efficient sewage | |
| CN109621700A (en) | A kind of bacteria filter system and its working method handling garbage odor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |