CN101632899B - Device and method for deodorization and sterilization of malodorous gas - Google Patents
Device and method for deodorization and sterilization of malodorous gas Download PDFInfo
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- CN101632899B CN101632899B CN2009101316655A CN200910131665A CN101632899B CN 101632899 B CN101632899 B CN 101632899B CN 2009101316655 A CN2009101316655 A CN 2009101316655A CN 200910131665 A CN200910131665 A CN 200910131665A CN 101632899 B CN101632899 B CN 101632899B
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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
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Abstract
The invention relates to the technical field of malodorous gas treatment, and provides a device and a method for deodorization and sterilization of malodorous gas. The device comprises a negative pressure collector, a biological deodorization device and a sterilization device. The method comprises the following steps: collecting malodorous gas of sources by the negative pressure collector of the device; decomposing the malodorous gas into odorless substances by the adsorption, assimilation and degradation by a plurality of layers of stuffings from bottom to top of a biological deodorization pool and the microorganism thereon; at last, inactivating microbial aerosol in the malodorous gas by the ultraviolet lamp and photocatalyst filtering net in the sterilization device to discharge clean gas without odor or bacteria. The device is operated hermetically, has low energy consumption, high efficiency, and simple technique and operation, and can be used for treating malodorous gas in the treatment works of rubbish, sewage and the like, farm, chemical plants and the like.
Description
Technical field
The present invention relates to a kind of exhaust gas treatment technology, particularly relate to the device and method that a kind of foul gas deodoring and disinfecting is handled.
Technical background
Foul gas is big public hazards in the world, often contains reproducibility sulfuration thing, amine, ammonia etc. in the foul gas, particularly derives from the foul gas such as destructor plant, sewage treatment plant, plant and also is mixed with a large amount of microbial aerosols.These materials can cause that the people produces dizziness, feels sick, allergic reaction etc.The foul gas processing method in past mainly contains absorption method, firing method, chemical method, biological treatment etc., however absorption method expense height, and filler is changed frequent.Firing method is better to the organic exhaust gas treatment effect of high concentration, but it is higher that the big flow foul gas of low concentration is handled energy consumption.Chemiadsorption is difficult to remove all the components in the foul smell simultaneously, and the reagent consumption amount is bigger, and expense is higher.The aqueous solution that organic exhaust gas after the chemisorbed forms needs further purified treatment to discharge, otherwise can cause secondary pollution.Though and conventional biological treatment such as operating costs such as biofilter, bio-trickling filter are low, the treatment effeciency height, but exist the debugging domestication time long, floor space is big, the easy inactivation of microorganism etc., cause the loss of microbial aerosol when particularly bioanalysis is handled foul gas easily, produce secondary pollution.
Summary of the invention
The objective of the invention is to overcome the shortcoming that exists in the prior art, a kind of deodoring and disinfecting device and method of foul gas is provided, promptly according to the characteristic of foul gas, by integral process processes such as negative pressure collection, biological absorption degradation and sterilizations, make foul gas be converted into the technology of the clean health gas of odorless sterile.
This device mainly comprises negative pressure gathering-device, biological deodorizing device and bactericidal unit; The negative pressure gathering-device comprises pipeline, explosion-proof fan, frequency converter.Pipeline in the negative pressure gathering-device is PVC or fiberglass material, and the pressure output of explosion-proof fan is by the frequency converter FEEDBACK CONTROL, and promptly increase falls in the pressure of biological deodorizing device, and rotation speed of fan increases, and output pressure increases, and vice versa.Comprise successively from bottom to top in the biological deodorizing device that inert filler cloth gas-bearing formation, light filler layer, biologic packing material layer, nutrient solution spray layer, light filler adsorption layer.Inert filler cloth gas-bearing formation is made of polypropylene porous net, and porosity is 85-90%, and thickness is 30cm, and the mesh wire diameter of forming the porous net is 1mm, and the twine surface is the furcella hair side of 0.05-0.1mm.The light filler layer is made of polyurethane, inoculation Christian Breton Pichia pastoris (Pichia), whiterot fungi (Phanerochaete), ash pipe shelf fungus (Fomes) etc. on the polyurethane; This layer porosity is 70-90%, and packing material size is 1-5cm, and thickness is 20-40cm.The filler of biologic packing material layer is an earthworm metabolism particle, and grain diameter is 0.5-1mm, and the biologic packing material layer thickness is 40～80cm.Nutrient solution sprays layer and is made of polypropylene porous net and shower, and packing layer thickness is 10cm; Evenly arrange spray beautiful jade pipe on the packing layer; The pH that nutrient solution contains compositions such as ammonium carbonate (50-150mg/l), phosphoric acid (10-50mg/l) and trace copper, iron, manganese is 7 cushioning liquid.The light filler adsorption layer is made of polyurethane sponge, and this layer porosity is 90%, and particle diameter is 0.3-1cm, and thickness is 5cm.Humidity in the biological deodorizing device, pH value etc. are by detections such as hygronom, pH meters, and transfer of data is to the PLC switch board.Humidity, pH value are controlled at 80-90%, 7-9 respectively, and pressure falls and is controlled to be in the 2000Pa.
Ultraviolet sterilizer comprises quartz burner, photocatalyst filtering net layer etc.The quartz burner vertical array produces 253nm wavelength ultraviolet light.The photocatalyst filtering net layer is made of polyurethane matrix depositing photocatalytic material titanium valve, and this layer porosity is 90%, and thickness is 5cm.
The method that the deodoring and disinfecting of foul gas of the present invention is handled is achieved by the following scheme: the foul gas of source of generation is collected and delivered in the biological deodorizing device and handle by the negative pressure gathering-device, and the gas after the processing discharges behind bactericidal unit deactivation microorganism again.Pipeline adopts PVC or fiberglass material in the negative pressure gathering-device of foul gas.Blower fan is the frequency conversion explosion-proof fan, and is controlled by the pressure drop controller.The waste gas of collecting enters from the biological deodorizing device bottom, and process inert filler cloth gas-bearing formation, light filler layer, biologic packing material degraded layer, nutrient solution spray layer, light filler adsorption layer, absorb, adsorb and the degraded foul gas through multilayer; Foul smell after biological treatment enters bactericidal unit, and ultraviolet ray in the bactericidal unit and photocatalyst filtering net purify the back discharging.
Particularly, the method handled of a kind of deodoring and disinfecting of foul gas is that foul gas with the source of generation send biological deodorizing device by closed conduit and frequency conversion fan.The output pressure of explosion-proof fan is by Frequency Converter Control, and maintenance stench that can be stable produces the micro-vacuum state in source, avoids the loss of stench and microbial aerosol.
Foul gas enters from biological deodorizing device bottom, and through the even gas distribution of cloth gas-bearing formation, the gas distribution net is an inert filler earlier, and is corrosion-resistant, porosity is high, gas distribution is even, prevents the uneven part that forms of gas distribution and crosses the excessive problem of stream load.Suspension in the bur hair side effectively catching foul gas of twine etc.
Foul gas upwards enters the light filler layer, this layer inoculation Christian Breton Pichia pastoris (Pichia), whiterot fungi (Phanerochaete), ash pipe shelf fungus efficient deodorization microorganisms such as (Fomes), under conditions such as suitable humidity and nutrition, smelly material in the foul gas, complicated metabolism such as organic matter are little molecule, and then mineralising is decomposed into inorganic matter, simple inorganic matter CO
2, H
2O, cytoplasm, simple substance S, dissolubility nitre attitude salt etc.
After the processing of light filler layer, gas continues to rise through entering the biologic packing material layer, biologic packing material is the earthworm metabolite, the biologic packing material uniform particles, be rich in microorganism, water retention property is strong, nutritional labeling suitable (organic matter 32.4%, nitrogen 2.15%, phosphorus 1.76%, potassium 0.27%, contain 23 seed amino acids), sustainable being used for for the microbial reproduction growth.
On biologic packing material layer top, for nutrient solution sprays layer, nutrient solution sprays layer and is made of polypropylene porous net and shower, and packing layer thickness is 10cm; Evenly arrange spray beautiful jade pipe on the packing layer; The pH that nutrient solution contains compositions such as ammonium carbonate (50-150mg/l), phosphoric acid (10-50mg/l) and trace copper, iron, manganese is 7 cushioning liquid.Humidity in the biological deodorizing device, pH value are controlled at 60%～85%, 6～8 respectively; Exceed setting range, will start flusher sprinkling nutrient solution automatically and be regulated.
It is the light filler layer that nutrient solution sprays layer top, and this layer is made up of short grained polyurethane sponge, and the light weight hole is many, the microbial aerosol of energy effectively catching loss and suspension etc., reduces its secondary diffuse pollution.
Gas after biological deodorizing device is handled enters ultraviolet sterilizer, and ultraviolet radiation intensity is 1000um/cm2, effectively the microbial aerosol in the deactivation gas.Simultaneously, the photocatalyst filtering net layer forms extremely strong free hydroxy (OH) and the superoxide anion free radical O of oxidisability under the exciting of ultraviolet light
2-, O
-, the cell membrane of destroy microorganisms, thus further hold back, deactivation microorganism etc., avoid in the foul gas or the secondary loss of microorganism in the biological deodorizing device.
It is low that the present invention has energy consumption, and expense is low, and the treatment effeciency height starts soon, and easy to operate, whole device can be realized unattended automatic operating.After foul gas deodoring and disinfecting device was handled, the stink clearance was greater than 98%, and the ammonia clearance is greater than 99%, and the hydrogen sulfide removal rate is greater than 99%, and effectively microorganism in the deactivation gas has avoided the secondary pollution of microbial aerosol in foul gas or the biological deodorizing device.
Description of drawings
Fig. 1 is the schematic diagram of the deodoring and disinfecting treating apparatus of the foul gas that proposes of the present invention
Pipeline 1; Explosion-proof fan 2; Frequency converter 3; Inert filler cloth gas-bearing formation 4; Light filler layer 5; Biologic packing material layer 6; Nutrient solution sprays layer 7; Light filler adsorption layer 8; Hygrometer 9; PH meter 10; Uviol lamp 11; Photocatalyst filtering net layer 12; PLC switch board 13
The specific embodiment
Below in conjunction with embodiment apparatus and method of the present invention are described in further detail.
Embodiment 1
The deodoring and disinfecting device of foul gas of the present invention mainly comprises negative pressure gathering-device, biological deodorizing device and bactericidal unit.The negative pressure gathering-device comprises pipeline 1, explosion-proof fan 2, frequency converter 3.The foul gas that stench is produced the source through pipeline 1 is delivered to biological deodorizing device through explosion-proof fan 2, the output pressure of frequency converter 3 control explosion-proof fans 2.Biological deodorizing device is inert filler cloth gas-bearing formation 4, light filler layer 5, biologic packing material layer 6, nutrient solution sprinkling layer 7, light filler adsorption layer 8 from bottom to top.Humidity in the biological deodorizing device, pH are controlled at 60%～85%, 6～8 respectively by hygronom 9 and not control of pH10 score, detect by on-line detector, adopt 13 controls of PLC switch board, exceed the scope of setting, spray nutrient solution in advance with adjusting.Gas rises behind the even gas distribution of biological deodorizing device bottom inert filler cloth gas-bearing formation, arrive the light filler layer, degradation bacteria Christian Breton Pichia pastoris (Pichia), whiterot fungi (Phanerochaete), the ash pipe shelf fungus (Fomes) of this part filler inoculation can be caught organic odorant rapidly, make it to be degraded to simple inorganic matter or little molecule.Gas continues to rise and enters the biologic packing material layer, and biologic packing material is made of the earthworm metabolin, is rich in microorganism and appropriate nutrition matrix in the filler, and under conditions such as the humidity that is provided with, pH value, microorganism is transformed into simple inorganic matter, H with the foul gas in the gas
2O, cytoplasm, simple substance S, dissolubility nitre attitude salt etc.Gas after biological deodorizing device is handled enters bactericidal unit, uviol lamp 11 and and 12 synergy of photocatalyst filtering net layer under microbial aerosol in the deactivation gas.
Set up 10000m according to this method
3The percolate of/h is handled the foul gas treating apparatus in workshop, wherein negative pressure collection of biological odor removal dischargeable capacity 75.36m
3 
Void tower time of staying 27s.The air inlet concentration of hydrogen sulfide is 100mg/m
3, ammonia concentration is 110mg/m
3, organic sulfur 25mg/m
3, humidity is 80%, microbe colony 1200CFU/m
3Concentration of hydrogen sulfide in the gas after treatment is less than 0.1mg/m
3, ammonia concentration is less than 0.1mg/m
3, organic sulfur does not detect, and microbe colony does not detect in giving vent to anger.Whole device moves automatically, and air loss is less than 2000Pa.The stink clearance is greater than 98%, and the ammonia clearance is greater than 99%, and the hydrogen sulfide removal rate is greater than 99%, and the microbial aerosol removal efficiency is greater than 99%.
Claims (14)
1. the deodoring and disinfecting treating apparatus of a foul gas, it is characterized in that: this device mainly comprises negative pressure gathering-device, biological deodorizing device and ultraviolet sterilizer; The negative pressure gathering-device comprises pipeline, explosion-proof fan, frequency converter; Comprise successively from bottom to top in the biological deodorizing device that inert filler cloth gas-bearing formation, light filler layer, biologic packing material layer, nutrient solution spray layer, light filler adsorption layer; Ultraviolet sterilizer comprises uviol lamp, photocatalyst filtering net layer; Light filler layer in the described biological deodorizing device is made of polyurethane sponge, inoculation Christian Breton Pichia pastoris, whiterot fungi, ash pipe shelf fungus on the sponge; This layer porosity is 70-90%, and sponge filler particles particle diameter is 1-5cm, and thickness is 20-40cm; Biologic packing material layer in the described biological deodorizing device is the earthworm metabolin, and the metabolin grain diameter is 0.5-1mm, and the biologic packing material layer thickness is 40-80cm; Light filler adsorption layer in the described biological deodorizing device is made of polyurethane sponge, and this layer porosity is 90%, and the sponge grain diameter is 0.3-1cm, and thickness is 5cm.
2. the deodoring and disinfecting treating apparatus of a kind of foul gas according to claim 1, it is characterized in that: the pipeline in the described negative pressure gathering-device is PVC or fiberglass material, and the output pressure of explosion-proof fan is by the frequency converter FEEDBACK CONTROL.
3. the deodoring and disinfecting treating apparatus of a kind of foul gas according to claim 1, it is characterized in that: the inert filler cloth gas-bearing formation in the described biological deodorizing device is made of polypropylene porous net, porosity is 85-90%, thickness is 30cm, the mesh wire diameter of forming the porous net is 1mm, and the twine surface is the furcella hair side of 0.05-0.1mm.
4. the deodoring and disinfecting treating apparatus of a kind of foul gas according to claim 1 is characterized in that: the nutrient solution in the described biological deodorizing device sprays layer and is made of polypropylene porous net and shower, and packing layer thickness is 10cm; Evenly arrange shower on the packing layer; It is 7 cushioning liquid that nutrient solution contains pH that ammonium carbonate, phosphoric acid and trace copper, iron, manganese forms, and wherein the concentration of ammonium carbonate scope is 50-150mg/L, and the concentration of phosphoric acid scope is 10-50mg/L.
5. the deodoring and disinfecting treating apparatus of a kind of foul gas according to claim 1, it is characterized in that: the humidity in the described biological deodorizing device, pH value are surveyed by hygronom, pH meter, and adopting PLC control, the scope of humidity, pH value is set at 80-90%, 7-9 respectively.
6. the deodoring and disinfecting treating apparatus of a kind of foul gas according to claim 1, it is characterized in that: described bactericidal unit medium ultraviolet lamp vertical array, the photocatalyst filtering net layer is made of polyurethane matrix depositing photocatalytic material titanium valve, and this layer porosity is 90%, and thickness is 5cm.
7. the method for the deodoring and disinfecting of foul gas processing is characterized in that: the deodoring and disinfecting treating apparatus that uses each described foul gas among the claim 1-6.
8. method according to claim 7, it is characterized in that: foul gas is produced source waste gas be sent to biological deodorizing and bactericidal unit processing by the negative pressure gathering-device, the output pressure of explosion-proof fan is by Frequency Converter Control, maintenance stench that can be stable produces the micro-vacuum state in source, avoid the loss of stench and microbial aerosol, gas after treatment is the clean air of odorless sterile.
9. according to claim 7 or 8 described methods, it is characterized in that: foul gas enters biological deodorizing device, gas distribution net in the device is an inert filler, corrosion-resistant, porosity is high, gas distribution is even, prevent the uneven part that forms of gas distribution and cross the excessive problem of stream load, the suspension in the bur hair side effectively catching foul gas of twine.
10. according to claim 7 or 8 described methods, it is characterized in that: foul gas enters biological deodorizing device, light filler layer in the device is a polyurethane sponge, the light weight hole is many, pressure drop loss is little, be difficult for by biodegradation, this filler is under suitable moisture, temperature conditions, Christian Breton Pichia pastoris, whiterot fungi, the ash pipe shelf fungus of inoculation are the high-performance bio degradation bacteria, can adsorb, absorb, decompose reproducibility sulfuration thing, ammonia, amine, ethyl acetate, ether, aromatic compound in the foul gas fast.
11. according to claim 7 or 8 described methods, it is characterized in that: foul gas enters biological deodorizing device, and earthworm metabolin filler is rich in microorganism in the biologic packing material layer in the device, and water retention property is strong, nutrient matrix is suitable, and the microbial reproduction growth is vigorous, biologically active is strong.
12. according to claim 7 or 8 described methods, it is characterized in that: the humidity in the biological deodorizing device, pH value, be controlled in the setting range respectively, exceed setting range and will start flusher automatically by the PLC switch board and spray nutrient solution and regulated, the loss of total pressure in the biological deodorizing device is less than 2000Pa.
13. according to claim 7 or 8 described methods, it is characterized in that: the light filler adsorption layer at the top in the described biological deodorizing device is less by the polyurethane sponge grain diameter, the microbial aerosol and the suspension of the loss of energy effectively catching reduce its secondary diffuse pollution.
14. according to claim 7 or 8 described methods, it is characterized in that: the gas after biological deodorizing device is handled enters bactericidal unit, and the ultraviolet wavelength that uviol lamp produces is 253nm, and radiation intensity is 1000um/cm
2, the effective microbial aerosol in the deactivation gas.
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| CN2009101316655A CN101632899B (en) | 2009-04-14 | 2009-04-14 | Device and method for deodorization and sterilization of malodorous gas |
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|---|---|---|---|
| CN2009101316655A CN101632899B (en) | 2009-04-14 | 2009-04-14 | Device and method for deodorization and sterilization of malodorous gas |
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| CN101632899A CN101632899A (en) | 2010-01-27 |
| CN101632899B true CN101632899B (en) | 2011-11-16 |
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Families Citing this family (14)
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| CN102319532A (en) * | 2011-10-13 | 2012-01-18 | 朱斌 | Integrated purification device of industrial dust and malodorous gas |
| CN103613256B (en) * | 2013-11-28 | 2016-01-06 | 上海老港废弃物处置有限公司 | A kind of blended landfill method of dewatered sludge and house refuse |
| CN103721539A (en) * | 2013-12-31 | 2014-04-16 | 深圳先进技术研究院 | Integrated deodorization device with biological deodorization and photocatalytic deodorization functions |
| CN103768909B (en) * | 2013-12-31 | 2016-06-08 | 深圳先进技术研究院 | A kind of livestock and poultry farm stench integrated control system and method |
| CN105582792B (en) * | 2014-09-12 | 2018-03-02 | 北京建筑大学 | A kind of synchronous apparatus and method for for removing odorant and microbial aerosol |
| CN106345253A (en) * | 2016-11-18 | 2017-01-25 | 广西金邦泰科技有限公司 | Waste gas treatment device |
| CN106512692A (en) * | 2016-12-21 | 2017-03-22 | 北京城市排水集团有限责任公司 | Photo-oxidative combined double-fluid double-spray washing deodorization reactor and application method thereof |
| CN108079763A (en) * | 2017-12-25 | 2018-05-29 | 浙江省农业科学院 | Life in the countryside and aquaculture wastewater processing anaerobic pond sealing deodorizing lid and its processing method |
| CN110873684B (en) * | 2018-08-30 | 2022-03-18 | 北京华泰诺安探测技术有限公司 | Biological aerosol monitoring equipment and monitoring method thereof |
| CN109692555B (en) * | 2019-01-16 | 2020-07-17 | 湖南恒凯环保科技投资有限公司 | Integrated biological deodorization device and biological deodorization method |
| CN113557075A (en) * | 2019-03-12 | 2021-10-26 | 未来股份有限公司 | Microbial deodorization device and deodorization processing system |
| CN109847573A (en) * | 2019-03-19 | 2019-06-07 | 邹智 | Skid-mounted type VOCs foul gas processing unit |
| CN114392649B (en) * | 2021-12-24 | 2022-10-14 | 北京建筑大学 | Biological deodorization system and method for enhanced removal of microbial aerosol |
| CN114588758B (en) * | 2022-05-10 | 2022-08-02 | 中国农业科学院农业环境与可持续发展研究所 | Multistage combined deodorization, ammonia reduction and sterilization system and method for farm |
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2009
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