CN105935551A - Two-stage biological process waste gas treatment system - Google Patents
Two-stage biological process waste gas treatment system Download PDFInfo
- Publication number
- CN105935551A CN105935551A CN201511007388.9A CN201511007388A CN105935551A CN 105935551 A CN105935551 A CN 105935551A CN 201511007388 A CN201511007388 A CN 201511007388A CN 105935551 A CN105935551 A CN 105935551A
- Authority
- CN
- China
- Prior art keywords
- level
- biofilter
- biological filter
- order
- stage biological
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/95—Specific microorganisms
-
- 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 two-stage biological process waste gas treatment system, which is provided with a first-stage biological filter tank and a second-stage biological filter tank. The first-stage biological filter tank is provided with a first-stage biological filter bed layer; the first-stage biological filter bed layer contains the most active thiophilic bacteria in the largest amount, and the second-stage biological filter tank contains more non-sulfur bacteria. The first-stage biological filter tank is provided with a first-stage circulating water tank at the bottom, and the water solution has a pH value of 2-4; and the second-stage biological filter tank is provided with a second-stage circulating water tank at the bottom, and the water solution has the pH value of 5-8. A gas demister is arranged between the first-stage biological filter tank and the second-stage biological filter tank. The invention adopts two-stage biological treatment process, so that different exhaust gases respectively get appropriate treatment pointedly. The system has good purification effect, makes it easy for different microorganisms to survive and to always maintain good activity, and also has good self-control performance.
Description
Technical field
The present invention relates to the device of a kind of exhaust-gas treatment and process process.
Background technology
The method of exhaust-gas treatment has the multiple methods such as filtration, absorption, ozone oxidation, divine and mighty decomposition, but for the waste gas of some mixed gas, traditional disposal methods obtains the most thorough.
Number of patent application a kind of high-activity biological waste gas purification tower that has been the disclosure of the invention of 2010102549848, it includes tower body, the top of tower body arranges clean air outlet, bottom arranges water tank and exhaust gas inlet, and water tank sidepiece is master control system, is divided into upper, middle and lower-ranking in tower body, upper strata is aerosol stratum disjunctum, middle level is biological activity waste gas scrubber layer, and lower floor is that ultra micro is atomized purifying layer, and wherein said biological activity waste gas scrubber layer is atomized the location order adjustable of purifying layer with ultra micro.It is provided with atomization catalysts in described ultra micro atomization purifying layer, and is connected with exhaust gas inlet；The filler of described aerosol stratum disjunctum uses metal many-sided ball, and is connected with clean air outlet；Described biological activity waste gas scrubber layer connects water tank by tube for transfusion, and tube for transfusion arranges control valve.How this invention is to keeping biological activity and the selection for the different biological varieties of gas with various not to have disclosure, and use value is relatively low.
The processing means of number of patent application a kind of discharged exhaust gas in sewage disposal field that has been the disclosure of the invention of 2011103133158 and processing method, processing means includes exhaust gas treating tower, the bottom of tower arranges except mist section, the top of tower sets gradually desulfurization section and hydrocarbon concentration homogenizing zone from bottom to up, desulfurization section and except arranging demarcation strip between mist section, except arranging gas outlet on the tower body above mist section and between demarcation strip, gas introduction port is set on the tower body below desulfurization section and between demarcation strip, between above-mentioned gas outlet and gas introduction port, gas transportation facilities is set；Except mist section includes that the filler on top is except mist layer and filler are except the blade distributor composition of mist layer bottom；Desulfurization section filling desulfurizing agent, hydrocarbon concentration homogenizing zone filling hydro carbons concentration levelling agent.This invention makes chemically, needs to consume big content of starting materials, produces new garbage.
Number of patent application is a kind of compound bio deodoration system processing atm number high concentration foul smell and the method for 2014100686285, including deodorizing tower and circulation liquid pool, cloth gas-bearing formation is set gradually from down to up inside deodorizing tower, circulation fluid collecting tank, zinc cation layer, bio-trickling layer, biofiltration layer and chimney, zinc cation layer and bio-trickling layer are respectively equipped with shower nozzle and corresponding biologic packing material, it is provided with corresponding biologic packing material in biofiltration layer and inoculates biological flora, circulation fluid in circulation liquid pool carries out degraded by spray piping and purifies the foul smell composition being passed through in deodorizing tower, process in being back to again circulate liquid pool.Though the structure of this equipment is complicated, but function is simple, and the process to multiple gas with various is the most thorough.
Summary of the invention
Goal of the invention:
There is provided what a kind of substep carried out can effectively remove sulphur removal system and the two stage biological method exhaust treatment system of non-sulfur system gas.
Technical scheme:
The two stage biological method exhaust treatment system of the present invention, has first order biofilter, biofilter, the second level.
Having first order biological filter bed, active biological inoculum in first order biological filter bed in first order biofilter, wherein bacteriophage kind is the most active, except the effect of sulfur-bearing elemental gas is best；The second level has second level biological filter bed, the second level active biological inoculum of biological filter bed in biological filter reason pond, and the most non-bacteriophage kind is more the most active, unless the effect of sulfur-bearing elemental gas (Hydrocarbon such as benzene, hydrocarbon) is preferable.
Waste gas enters from first order biofilter, by first order biological filter bed filtration, degrade or aoxidize after from first order gas exit line flow out, pass through biofilter, the second level, by second level biological filter bed filtration, degrade or aoxidize after from second level gas exit line flow out, the power of gas flowing connects your sucktion fan after coming from second level gas exit line, after sucktion fan, UNICOM purifies collection and confinement of gases tapping equipment.Most harmful gass in waste gas are degraded by microorganism-capturing, oxidation, are decomposed into harmless CO2 and H2O gas discharge；In decomposition, produced other metabolites such as sulphuric acid, nitrous acid enter circulating water device, and final sum metabolite is discharged together.
Being provided with first order cyclic water tank bottom first order biofilter, the pH value of aqueous solution therein is 2-4(strong acidic environment, is suitable for the existence of bacteriophage kind), it is provided that the current of circulation in first order biofilter；Being provided with second level cyclic water tank bottom biofilter, the second level, the pH value of aqueous solution therein is 5-8(faintly acid, alkalescence or neutral environment, is suitable for the survival of non-bacteriophage kind), it is provided that the current of circulation in the biological filter of the second level.Along with hydrogen sulfide or there is other machine gas to be aoxidized by biological inoculum, the pH value of water can be more and more lower, needs this time to add aqueous alkali regulation pH value.Every one-level biofilter is equipped with water circulating pump, aqueous solution bottom this biofilter can be pumped the multiple substantially uniform distribution nozzles to top, filter tank, to be sprayed onto on biological filter bed, biological nutrition material needed for biological inoculum in guarantee biological filter bed, moisture, suitable pH value, thus ensure activity and the regeneration capacity of strain.Aqueous solution then passes through the respective biological filter bed drip lower space to respective biofilter, then is back to respective cyclic water tank.
Biological filter bed has following function: as microorganism carrier；Nutrition is provided for microorganism；Moist ecological environment is provided for microorganism；Absorption surface is provided for the odorant pollutant in waste gas；Keep suitable pH value.
Microorganism is to exist with population form, and multiple-microorganism can be cohabited in an environment, and the characteristic of microorganism is the most similar but also different, and different polluters can find its microorganism of degraded at nature.Therefore energy treatment and purification multiple pollutant matter simultaneously in set of device.
In biological filter bed, microorganism is adhered to, is fixed on efficient inert filler, and specific surface area is big.There is provided growth of microorganism to need suitable temperature, humidity and acid-base value condition, also have sufficient oxygen and nutrient substance.Organic substance in waste gas is provided that nutrient carbon, nitrogen, phosphorus and the part trace element that Institute of Micro-biology needs.
In the present invention, before waste gas enters first order biofilter, may also pass through pretreatment unit, carry out oil removal and (remove the ability of the oily substances such as hydrocarbon gas, the metabolism of microorganism is affected so as not to being deposited on filling surface, ensure back segment biological treatment effect), temperature regulates, (preventing dust from entering subsequent bio trickling filter causes pressure drop to increase in dedusting, failure to avoid the increase of operating cost even to run), or (the foul smell humidity making entrance subsequent biological treatment device reaches degree of saturation to humidification, meet the biological treatment strict demand to humidity), the pollutant being easy in waste gas are fully contacted with the microorganism on bacteria bed, persistently keep biological inoculum activity.
It addition, the two-stage water tank of the present invention is furnished with attemperating unit, having temperature of liquid regulatory function, the carrying out raising beneficially biochemical process of temperature, the highest have easy death.In regulation biological deodorizing system, the optimal temperature of growth of microorganism is 20-40 DEG C.Metabolism can be carried out under microorganism low-temperature, but response speed is slower；Winter, very cold, caused strain mortality for preventing biological inoculum from declining suddenly because of ambient temperature.When temperature is less than designated value, uses steam that circulation fluid is heated, keep heat balance；Ensure the growing environment that microorganism is suitable, make microorganism be in optimum state all the time, thus reach the optimum efficiency to pollutant removal.
In the present invention, between first order biofilter to biofilter, the second level, gas demister can be set, to stop or to retain the liquid solution in the waste gas flowed through.To prevent during in first order biofilter, the aqueous solution of relatively low pH value takes biofilter, the second level to.The offgas outlet of biofilter, the second level, it is also possible to be configured with condenser, prevents aqueous solution elegant in air with tail gas.
In the present invention, it is also possible to there is automatic control system, control the operation of each functional part respectively, all of waste gas conveying in waste gas treatment process, aqueous solution pumping, temperature survey regulation and control can be automatically performed, monitor or go back the function that interlocking runs.
Beneficial effects of the present invention:
(1) two stage biological processing procedure is used so that different waste exhaust gases respectively obtains suitably process, good purification targetedly.Anti-shock loading is strong, adapts to process the waste gas source of the gas of various concentration multiple gases.
(2) automation degree of equipment high (in view of guaranteeing the needs that deodorizing device runs under optimum condition, configure automatic control system), stable, can realize unmanned.
(3) staged care makes different microorganisms easily survive, and growth updates fast, remains good activity；Speed is restarted fast after stopping using.
(4) using high-performance bio filler, service life is long, is typically more than 10 years, and equipment operating cost is low, it is not necessary to change；Chitosan fluid dressing has good structural stability and intensity, permeability, and therefore equipment windage is little, pressure drop is little.
Accompanying drawing explanation
Fig. 1 is a process flow diagram of the present invention；
Fig. 2 is a cross-sectional view of the present invention；
In figure, 1-cleans water source；2-first order biofilter lower space；3-first order biofilter admission space；4-waste gas source of the gas；
5-first order biological filter bed；6-nozzle；7-first order biofilter；8-gas demister；9-first order gas exit line；Biofilter, the 10-second level；11-second level gas exit line；12-purifies collection and confinement of gases tapping equipment；13-sucktion fan；14-second level biological filter bed；15-second level cyclic water tank；16-first order cyclic water tank；18-condenser.
Detailed description of the invention
Two stage biological method exhaust treatment system as shown in Figure 2, has first order biofilter 7, biofilter, the second level 10.Having first order biological filter bed 5 in first order biofilter 7, active biological inoculum in first order biological filter bed 5, wherein bacteriophage kind is the most active；The second level has second level biological filter bed 14 in biological filter reason pond 10, and the active biological inoculum of second level biological filter bed 14, the most non-sulfur strain is more the most active.
Waste gas enters from first order biofilter 7, flow out from first order gas exit line after filtering by first order biological filter bed 5, degrade or aoxidize, pass through biofilter, the second level 10, flow out from second level gas exit line 11 after filtering by second level biological filter bed 14, degrade or aoxidize, the power of gas flowing connects your sucktion fan 13 after coming from second level gas exit line 11, after sucktion fan 13, UNICOM purifies collection and confinement of gases tapping equipment 12.
Being provided with first order cyclic water tank 16 bottom first order biofilter 7, the pH value of aqueous solution therein is 3-4, it is provided that the current of circulation in first order biofilter 7；Being provided with second level cyclic water tank 15 bottom biofilter, the second level 10, the pH value of aqueous solution therein is 6-8, it is provided that the current of circulation in biofilter, the second level 10.Two-stage water tank is furnished with attemperating unit, has temperature of liquid regulatory function, and regulation temperature is 20-40 DEG C.
Between biofilter, 7 to the second level, first order biofilter 10, gas demister 8 can be set.The offgas outlet of biofilter, the second level 10 is configured with condenser 18.
As it is shown in figure 1, native system is separately furnished with automatic control system, all of waste gas conveying in waste gas treatment process, aqueous solution pumping, temperature survey regulation and control can be automatically performed, monitor or the function of operation of interlocking.Make different waste exhaust gases respectively obtain continuous print targetedly to process, it is achieved unmanned, clean-up effect is preferable.
Claims (5)
1. a two stage biological method exhaust treatment system, has first order biofilter, biofilter, the second level, it is characterised in that:
Having first order biological filter bed in first order biofilter, active biological inoculum in first order biological filter bed, wherein bacteriophage kind is the most active；The second level has second level biological filter bed in biological filter reason pond, and the second level active biological inoculum of biological filter bed, the most non-bacteriophage kind is more the most active；
Waste gas enters from first order biofilter, by first order biological filter bed filtration, degrade or aoxidize after from first order gas exit line flow out, pass through biofilter, the second level, by second level biological filter bed filtration, degrade or aoxidize after from second level gas exit line flow out, the power of gas flowing connects your sucktion fan after coming from second level gas exit line, after sucktion fan, UNICOM purifies collection and confinement of gases tapping equipment；
Being provided with first order cyclic water tank bottom first order biofilter, the pH value of aqueous solution therein is 2-4, it is provided that the current of circulation in first order biofilter；Being provided with second level cyclic water tank bottom biofilter, the second level, the pH value of aqueous solution therein is 5-8, it is provided that the current of circulation in the biological filter of the second level.
2. two stage biological method exhaust treatment system as claimed in claim 1, it is characterised in that: two-stage water tank is joined can attemperating unit, has temperature of liquid regulatory function, and regulation temperature is 20-40 DEG C.
3. two stage biological method exhaust treatment system as claimed in claim 1, it is characterised in that: between first order biofilter to biofilter, the second level, gas demister can be set.
4. two stage biological method exhaust treatment system as claimed in claim 1, it is characterised in that: the offgas outlet of biofilter, the second level can be configured with condenser.
5. two stage biological method exhaust treatment system as claimed in claim 1, it is characterized in that: be furnished with automatic control system, control the operation of each functional part respectively, all of waste gas conveying in waste gas treatment process, aqueous solution pumping, temperature survey regulation and control can be automatically performed, monitor or the function of operation of interlocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007388.9A CN105935551A (en) | 2015-12-30 | 2015-12-30 | Two-stage biological process waste gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007388.9A CN105935551A (en) | 2015-12-30 | 2015-12-30 | Two-stage biological process waste gas treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105935551A true CN105935551A (en) | 2016-09-14 |
Family
ID=57153202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511007388.9A Pending CN105935551A (en) | 2015-12-30 | 2015-12-30 | Two-stage biological process waste gas treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105935551A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975343A (en) * | 2017-04-07 | 2017-07-25 | 上海野马环保设备工程有限公司 | A kind of high-performance bio deodorization process and system |
| CN107998873A (en) * | 2018-01-04 | 2018-05-08 | 北京实力伟业环保科技有限公司 | The device of Biochemical method viscose rayon industry sulphur-containing exhaust gas |
| CN110449002A (en) * | 2019-08-23 | 2019-11-15 | 常州南大常高新环保产业技术研究院有限公司 | A kind of low concentration viscose fiber wastewater exhaust treatment system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0583488A1 (en) * | 1991-01-25 | 1994-02-23 | ISODRA isolierte Feindrähte GmbH Wildenkuhlen | Process for biological treatment of exhaust gases and device for carrying out the same |
| CN1351897A (en) * | 2000-11-14 | 2002-06-05 | 同济大学 | Removing method for foul smell gas |
| CN2558443Y (en) * | 2002-03-18 | 2003-07-02 | 冯建成 | Washing-bio-filter bed filtering united deodorizing device |
| CN200966978Y (en) * | 2006-08-01 | 2007-10-31 | 顾建 | Exhaust gas treatment device of setting machine |
| CN101732984A (en) * | 2009-12-30 | 2010-06-16 | 四川得阳特种新材料有限公司 | Waste gas treatment system of polyphenylene sulphide production process |
| JP4487052B2 (en) * | 2008-03-28 | 2010-06-23 | 国立大学法人東京工業大学 | Aeration-type deodorization device with Alkagenes bacteria combined with contact tank |
| CN202569951U (en) * | 2011-12-16 | 2012-12-05 | 宋青 | Device for performing biological deodorization and waste gas treatment on sewage |
| CN204395768U (en) * | 2014-12-10 | 2015-06-17 | 青岛农业大学 | A kind of biofilter deodorization experimental provision |
| CN205435469U (en) * | 2015-12-30 | 2016-08-10 | 江苏科威环保技术有限公司 | Biological method exhaust treatment device of second grade |
-
2015
- 2015-12-30 CN CN201511007388.9A patent/CN105935551A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0583488A1 (en) * | 1991-01-25 | 1994-02-23 | ISODRA isolierte Feindrähte GmbH Wildenkuhlen | Process for biological treatment of exhaust gases and device for carrying out the same |
| CN1351897A (en) * | 2000-11-14 | 2002-06-05 | 同济大学 | Removing method for foul smell gas |
| CN2558443Y (en) * | 2002-03-18 | 2003-07-02 | 冯建成 | Washing-bio-filter bed filtering united deodorizing device |
| CN200966978Y (en) * | 2006-08-01 | 2007-10-31 | 顾建 | Exhaust gas treatment device of setting machine |
| JP4487052B2 (en) * | 2008-03-28 | 2010-06-23 | 国立大学法人東京工業大学 | Aeration-type deodorization device with Alkagenes bacteria combined with contact tank |
| CN101732984A (en) * | 2009-12-30 | 2010-06-16 | 四川得阳特种新材料有限公司 | Waste gas treatment system of polyphenylene sulphide production process |
| CN202569951U (en) * | 2011-12-16 | 2012-12-05 | 宋青 | Device for performing biological deodorization and waste gas treatment on sewage |
| CN204395768U (en) * | 2014-12-10 | 2015-06-17 | 青岛农业大学 | A kind of biofilter deodorization experimental provision |
| CN205435469U (en) * | 2015-12-30 | 2016-08-10 | 江苏科威环保技术有限公司 | Biological method exhaust treatment device of second grade |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975343A (en) * | 2017-04-07 | 2017-07-25 | 上海野马环保设备工程有限公司 | A kind of high-performance bio deodorization process and system |
| CN107998873A (en) * | 2018-01-04 | 2018-05-08 | 北京实力伟业环保科技有限公司 | The device of Biochemical method viscose rayon industry sulphur-containing exhaust gas |
| CN110449002A (en) * | 2019-08-23 | 2019-11-15 | 常州南大常高新环保产业技术研究院有限公司 | A kind of low concentration viscose fiber wastewater exhaust treatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108854355A (en) | A kind of system and method for sewage treatment plant's foul smell Collecting and dealing | |
| CN104001421B (en) | A kind of employing pretreated compound bio deodorization process of bubble-free aeration and device | |
| KR20090044150A (en) | Deodorizing system for livestock facility | |
| CN103691268A (en) | Method and device for treating waste gas generated by printing and dyeing wastewater | |
| CN102614774A (en) | Biological treatment system of sludge odor and method for treating sludge odor by utilizing same | |
| CN202078845U (en) | Exhaust gas purification device and automatic exhaust gas purification system | |
| CN103623693A (en) | Efficient biological deodorization equipment | |
| CN104338436A (en) | Deodorizing system for efficiently processing high concentration mixed stink | |
| CN105935551A (en) | Two-stage biological process waste gas treatment system | |
| CN205435469U (en) | Biological method exhaust treatment device of second grade | |
| CN105709589A (en) | Biological filter device for purifying foul gas and volatile organic compounds | |
| CN205517242U (en) | Purify foul gas and volatile organic compounds's biological filter device | |
| CN103357266A (en) | Device for absorbing and purifying odor of fertilizer fermentation workshop | |
| CN104524967B (en) | A kind of method of organic exhaust gas of carrying out a biological disposal upon | |
| CN210522249U (en) | Composite high-efficiency biological deodorization filter tank | |
| CN218834108U (en) | Biological washing and filtering treatment system for VOCs organic waste gas | |
| KR100943882B1 (en) | Waste-air treatment devices | |
| CN210356682U (en) | Industrial waste water high concentration composite biological deodorization device | |
| CN110252126A (en) | Zinc cation filtration deodorization technique and system | |
| CN205435467U (en) | Modular exhaust treatment device of biological method | |
| CN101020130A (en) | Biological deodorizing device | |
| KR20020073972A (en) | Hydrogen sulfide and VOCs remove system using Fe-EDTA and Biofilter | |
| CN203316004U (en) | Industrial organic waste gas treatment system | |
| CN205216578U (en) | Composite module biofiltration purifier | |
| CN214182369U (en) | Color-coated organic waste gas treatment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160914 |
|
| RJ01 | Rejection of invention patent application after publication |