CN104826483B - Biological purification method for paint spraying waste gas and organic waste gas - Google Patents
Biological purification method for paint spraying waste gas and organic waste gas Download PDFInfo
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- CN104826483B CN104826483B CN201510266826.7A CN201510266826A CN104826483B CN 104826483 B CN104826483 B CN 104826483B CN 201510266826 A CN201510266826 A CN 201510266826A CN 104826483 B CN104826483 B CN 104826483B
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- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 21
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Classifications
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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
- 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
Landscapes
- Treating Waste Gases (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a biological purification method of paint spraying waste gas and organic waste gas, which comprises the following steps: 1) preparing biological bacterial liquid, namely preparing a multi-salt solution containing 1-5% of sodium phosphate, 1-4% of sodium sulfite, 1-6% of magnesium sulfate, 0.5-3% of sodium chloride and 0.1-1% of calcium chloride according to the mass ratio; adding 5-15% of crushed plant branches, 1-5% of soy sauce and 1-5% of active agent into a multi-salt solution according to the mass ratio, pickling, fermenting and brewing for more than 10 days under the conditions of pH7-11 and temperature of 15-40 ℃, obtaining halophilic bacteria mixed flora biological bacteria liquid capable of effectively dissolving and degrading organic substances within the range of 10-40 ℃, and storing the halophilic bacteria mixed flora biological bacteria liquid in a biological bacteria liquid storage pool; 2) collecting paint spraying waste gas and organic waste gas; 3) spraying and washing the biological bacteria, adsorbing the residual paint mist, and dissolving, absorbing and degrading the organic waste gas; 4) and (4) discharging the gas up to the standard at high altitude. After the method is adopted, the method has the characteristics of low operation cost, good stability, high purification efficiency, good safety and the like.
Description
Technical field
The biological purification method of the organic exhaust gas produced during the present invention relates to produce the industry production such as lacquer spraying waste gas and printing, dipping lacquer, pharmacy in lacquer spraying waste gas and organic waste-gas purification technical field, particularly product surface processing procedure.
Background technology
Paint is widely used in the product surface process field such as Furniture manufacture, shoemaking, automobile production, machine-building, household electrical appliances, electromechanics, plastics five metals.Need before paint spraying to be diluted, paint the lacquer spraying waste gas that can produce two kinds of pollutant when spraying: one is coating cloud, paint is atomized into microgranule under high pressure effect, and coating cloud microgranule can not arrive the part paint mist microgranule of surface of the work and form coating cloud with air-flow disperse when spraying；Two is organic exhaust gas, and organic solvent (diluent) is used to dilution paint, volatilizees, at workpiece painting process and subsequent cure process organic solvent, the organic solvent discharged and forms organic exhaust emission.The composition of organic solvent is usually the NMHC compositions such as benzene,toluene,xylene, styrene, ethyl acetate, butyl acetate, n-butyl alcohol, acetone, these Organic Waste Gas Pollution material impacts on air, it is its photochemical reaction smog, haze, many of which is carcinogen, as the hematopoietic function of bone marrow is damaged by benzene homologues, it it is a kind of carcinogen.The most treated it is directly discharged in environment, directly contributes serious environmental pollution.By breathing or directly acting on human body, the skin of people, blood, cardiopulmonary, liver, nerve, eyes are produced harm.The feature of lacquer spraying waste gas is that air quantity is big, and in gas, the concentration of organic substance is low, belongs to Wind Volume, low-concentration organic exhaust gas.Also the organic exhaust gas of low concentration is produced during the industry production such as printing, dipping lacquer, pharmacy.At present, the purification method of lacquer spraying waste gas and organic exhaust gas is mainly had: the technical matters such as absorption process, absorption method, combustion method, plasma decomposition, bioanalysis:
It is the highest to there is purification efficiency in absorption process, typically between 60-85%, it is difficult to reach the environmental requirement of increasingly stringent, additionally, absorbent regeneration needs to carry out distilling, condensation separation processes, complex procedures, poor stability, easily so produces secondary pollution problems.
Absorption method typically uses activated carbon as adsorbent, in use there is the shortcomings such as adsorption efficiency is low, purification is unstable, system investments is big, operating cost is high, security of system is poor, and a lot of enterprises are to cannot afford, or the difficult situation can afford and can not afford.
Combustion method: be divided into direct combustion method and Production by Catalytic Combustion Process.Directly combustion method is to utilize the aid fuel combustion liberated heat such as combustion gas or fuel oil that mixed gas is heated to uniform temperature (700-800 DEG C), resident regular hour, makes flammable harmful gas burn.Production by Catalytic Combustion Process is that waste gas is heated to 200-300 DEG C, burns through catalytic bed, reaches to purify purpose.This method is applicable to high temperature, high concentration, the VOCs treatment of little air quantity, but big to air quantity, organic contamination substrate concentration is low, directly uses burning method to process, there is energy loss big, equipment investment is big, the shortcoming that operating cost is high, should not use on organic exhaust gas spraying paint.
Plasma decomposition: plasma be deprived of by part electronics after atom and atom be ionized after the ionized gas shape material that forms of positron-electron that produces, plasma is a kind of well electric conductor, and utilization can catch through the magnetic field of ingehious design, mobile and acceleration plasma.Plasma can be divided into two kinds: high temperature and low temperature plasma.Owing to there is the ion of electronegative free electron and positively charged, having the highest electrical conductivity, and the coupling of electromagnetic field is the most extremely strong: charged particle can couple with same electric field, charged particle stream can couple with magnetic field.During dielectric barrier discharge, electronics obtains energy from electric field, energy is converted into interior energy or the kinetic energy of contaminant molecule by such tens or thousand of electronics by collision, these molecules obtaining energy are excited or occur ionization to form active group, have (thunder and lightning) danger of the electric light of generation, heat in the application of the organic exhaust gas that sprays paint too.
Bioanalysis: be to utilize microorganism using the organic component in waste gas as the energy of its vital movement or other nutrients, through metabolic degradation, be converted into simple inorganic matter (CO2, water etc.) and cell component.It is with the difference of biological wastewater treatment process maximum: the organic pollution in waste gas first has to experience is transferred to the mass transport process in liquid phase (or surface of solids liquid film) by gas phase, then by liquid phase or surface of solids liquid film by microorganism absorption degradation.Utilize microorganism by the organic pollutant degradation in odorous gas or the process that is converted into harmless or low harmful class material.Abroad since the eighties, having started to process industrial waste gas by biotechnology, technology cleans, easy and simple to handle, at normal temperatures and pressures can be carried out reaction, especially low concentration, high flow capacity waste gas purification on have received good effect, biological waste gas purification is the new technique of " green ".At present in biological treatment, because being affected by factors such as microbial bacteria, bio-film colonization, air quantity, humidity, temperature, the time of staying, pressure, easily there is filtrate and the problem such as the degeneration of biofilm, microbial activity reduction, cause the short-circuit flow that air film contacts, so that the purification efficiency of Organic Waste Gas Pollution thing reduces.Additionally, water solublity and biological degradability to organic pollution require the highest, the startup of bioreactor, microbial acclimation, processing procedure persistent period, and the subject matter that the specific surface area of filler is few, porosity is few, flowing resistance is greatly current filler.The less effective of filler causes that bacterial activity reduces, equipment volume is huge, the time of staying is long, easily block, and affects mass transfer effect, makes filler short for service life, and then directly affect the operating cost of whole system.
Owing to lacquer spraying waste gas is because of containing moist, the tackifying resin of coating cloud, organic solvent, air quantity discharge is big, the low concentration of organic exhaust gas, solves lacquer spraying waste gas with existing dedusting technology and does not reaches " absorption method industrial organic exhaust gas harnessing project technical specification " particle content less than 1mg/m at all3Requirement.To this end, many manufacturers and knowledgeable people exclusively carry out exploitation and develop, but comparatively ideal product is the most not yet had to emerge.
Summary of the invention
In order to solve the problems referred to above existing for existing lacquer spraying waste gas and VOCs treatment, it is an object of the invention to provide a kind of operating cost is low, good stability, purification efficiency high, safety is good lacquer spraying waste gas and the biological purification method of organic exhaust gas, make enterprise afford to afford to use, it can efficiently and effectively administer lacquer spraying waste gas and organic exhaust gas, makes waste gas discharge reach the three waste discharge requirement of country.
The technical solution adopted for the present invention to solve the technical problems, described biological purification method comprises the steps:
1) biological bacterium solution preparation, prepares many saline solution, containing sodium phosphate 1-5%, sodium sulfite 1-4%, magnesium sulfate 1-6%, sodium chloride 0.5-3%, calcium chloride 0.1-1% in many saline solution in sea water or fresh water or the two mixed liquor in mass ratio；Many saline solution add in mass ratio and is ground into micron-sized plant branch bar 5-15%, soy sauce 1-5%, activating agent 1-5%, pickled fermented under conditions of PH7-11 and temperature 15-40 DEG C brewage more than 10 days, utilize the aspergillosis contained in soy sauce, the alcohol zygosaccharomyces antibacterial that plant branch bar carries, pseudomonas, Achromobacter xylosoxidans, halophilic bacteria in Burkholderia and many saline solution carries out cultivating and breeding becomes halophilic bacteria mixed bacterial, thus obtain and can effectively dissolve the halophilic bacteria mixed bacterial biology bacterium solution with degradation of organic substances matter in the range of 10-40 DEG C, the halophilic bacteria mixed bacterial biology bacterium solution prepared leaves in biological bacterium solution liquid storage tank；
2) lacquer spraying waste gas and organic exhaust gas are collected, and the lacquer spraying waste gas produced and organic exhaust gas collected by collector unit and delivered to next process process by air-introduced machine and conveyance conduit in production process；
null3) biological bacteria spray washing processes，The lacquer spraying waste gas of upper one procedure enters biological bacteria spray washing processing unit，Biological bacteria spray washing processing unit uses least one set cyclone type spray washing device or filler tower spray washing device or combination，Utilize the halophilic bacteria mixed bacterial distinctive dissolubility of biology bacterium solution、Absorbability、Adsorptivity，Halophilic bacteria mixed bacterial biology bacterium solution spray washing on biological bacteria spray washing processing unit，Halophilic bacteria mixed bacterial in halophilic bacteria mixed bacterial biology bacterium solution gives birth to and brings up breeding at packing layer，Lacquer spraying waste gas and halophilic bacteria mixed bacterial biology bacterium solution making contact，The coating cloud of residual is adsorbed，Organic exhaust gas is dissolved by halophilic bacteria mixed bacterial biology bacterium solution、Absorb and degraded，And be back in biological bacterium solution liquid storage tank with halophilic bacteria mixed bacterial biology bacterium solution，The coating cloud slag separated from biological bacterium solution liquid storage tank is transported to the recycling of dangerous fixed-end forces center；
4) lacquer spraying waste gas and organic exhaust gas gas high altitude discharge up to standard after biological bacteria spray washing processes.
The further scheme of the present invention, described lacquer spraying waste gas and organic exhaust gas are collected and are additionally provided with alkalescence spray washing processing unit between the process of biological bacteria spray washing, lacquer spraying waste gas and organic exhaust gas that collector unit is collected enter alkalescence spray washing processing unit, enter back into biological bacteria spray washing processing unit processes after alkalescence spray washing processing unit processes；Described alkaline spray washing processing unit uses least one set cyclone type spray washing device or filler tower spray washing device or combination, alkalescence breakdown of emulsion liquid is spray washing on alkalescence spray washing processing unit, lacquer spraying waste gas and organic exhaust gas break emulsion contacts with alkalescence, coating cloud is absorbed breakdown of emulsion, and be back in alkalescence breakdown of emulsion liquid liquid storage tank with alkalescence breakdown of emulsion liquid, the coating cloud slag separated from alkalescence breakdown of emulsion liquid liquid storage tank is transported to the recycling of dangerous fixed-end forces center.
The further scheme of the present invention, the preparation of described alkalescence breakdown of emulsion liquid, water 90-99% in mass ratio, basic matterial or alkalescence depainting A/B agent 1-10% mixing composition, the alkaline breakdown of emulsion liquid prepared leaves in alkalescence breakdown of emulsion liquid liquid storage tank, alkalescence breakdown of emulsion liquid can change the interfacial property of paint, destroy the stabilizing films on interface, make double electricity limitans instability of paint take off steady, the viscosity of fall priming paint mist.
The further scheme of the present invention, described activating agent is the combination of the one or both of non-surface-active agent and anion surfactant, and non-surface-active agent is the activating agent of polyoxyethylene-type or polyol type；Anion surfactant is the activating agent of metal carboxylate and Sulfonates.
The further scheme of the present invention, in described biological bacterium solution liquid storage tank, salty composition controls in mass ratio at 1.6-10%, it is ensured that halophilic bacteria mixed bacterial give birth to and bring up breeding environment.
The further scheme of the present invention, described basic matterial is sheet alkali, the one of which of sodium phosphate or mixture；Described plant branch bar refers to various trees, rice standing grain, the one of which of Mai He or mixture.
The further scheme of the present invention, described lacquer spraying waste gas and organic exhaust gas are dissolved by halophilic bacteria mixed bacterial biology bacterium solution at biological bacteria spray washing processing unit, absorb and carry out as follows in degradation process:
1) lacquer spraying waste gas and organic exhaust gas contact and are dissolved in this bacterium solution with halophilic bacteria mixed bacterial biology bacterium solution, and waste gas air film dissolves, is adsorbed to halophilic bacteria mixed bacterial surface, and diffuses to the liquid film of halophilic bacteria mixed bacterial；
2) lacquer spraying waste gas being dissolved in liquid film and organic exhaust gas diffuse further into biomembrane under the promotion of concentration difference, and then by microorganism-capturing therein and absorb；
3) enter the lacquer spraying waste gas in microbial body and organic exhaust gas is degraded as the energy and nutrient substance in the metabolic process of himself, be eventually converted into harmless compound CO2 and H2O through biochemical reaction.
The further scheme of the present invention, described lacquer spraying waste gas and organic exhaust gas dissolve between the 3-10 second, are adsorbed on halophilic bacteria mixed bacterial biology bacterium solution and filler in biological bacteria, and organic exhaust gas absorbs in biological bacteria in halophilic bacteria mixed bacterial biology bacterium solution and filler and degrades for 10-48 hour.
Use said method, prior art compares and has the following advantages and effect: one is halophilic bacteria mixed bacterial biology bacterium solution good stability, as long as controlling many salinity of bacterium solution well, halophilic bacteria mixed bacterial just can be given birth to and brought up and breed, and then can control the purification efficiency of lacquer spraying waste gas and organic exhaust gas well.Two is that cleaning system is safe and reliable, halophilic bacteria mixed bacterial is grown in the natural environment such as salt lake, saline and alkaline field, saltern and ocean more, biological inoculum safe source, there are wide salt territory environment and abundant halophilic microorganism resource in China, the materials such as plant dust, trees end, rice standing grain end, Mai Hemo, sea water are all that natural environment exists, need not specially go transformation, it is easy and convenient that halophilic bacteria mixed bacterial biology bacterium solution cultivates breeding.Three is to run environmental protection, with the methods of purification such as other liquid absorption method, absorption method, combustion method, plasma decomposition are more obvious than cost advantage, furthermore there is an abundant halophilic microorganism resource in China, the green new technique of exhaust emission material administered especially by the material such as plant dust, tree end, rice standing grain end, wheat standing grain end with waste materials.Four is that operating cost is low, and whole cleaning system only has the water circulating pump of two, the air-introduced machine work of spray painting operation, and power consumption saves, and biological bacterium solution is simple and easy to get, price is low, and automatic controlling level is high.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of the present invention.
Wherein 1 alkalescence breakdown of emulsion liquid preparation, 2 alkalescence breakdown of emulsion liquid liquid storage tanks, 3 biological bacterium solution preparations, 4 biological bacterium solution liquid storage tanks, 5 lacquer spraying waste gas are collected, 6 alkalescence one-level spray washings, 7 two grades of spray washings of alkalescence, 8 biological bacteria one-level spray washings, 9 biological bacteria two grades spray washings, 10 high altitude discharges.
Detailed description of the invention
Shown in Fig. 1, for the biological purification method of lacquer spraying waste gas of the present invention and organic exhaust gas for the specific embodiments of lacquer spraying waste gas, described biological purification method comprises the steps:
1) biological bacterium solution preparation 3, prepares many saline solution, containing sodium phosphate 1-5%, sodium sulfite 1-4%, magnesium sulfate 1-6%, sodium chloride 0.5-3%, calcium chloride 0.1-1% in many saline solution in sea water or fresh water or the two mixed liquor in mass ratio；Many saline solution add in mass ratio and is ground into micron-sized plant branch bar 5-15%, soy sauce 1-5%, activating agent 1-5%, pickled fermented under conditions of PH7-11 and temperature 15-40 DEG C brewage more than 10 days, utilize the aspergillosis contained in soy sauce, the alcohol zygosaccharomyces antibacterial that plant branch bar carries, pseudomonas, Achromobacter xylosoxidans, halophilic bacteria in Burkholderia and many saline solution carries out cultivating and breeding becomes halophilic bacteria mixed bacterial, thus obtain and can effectively dissolve the halophilic bacteria mixed bacterial biology bacterium solution with degradation of organic substances matter in the range of 10-40 DEG C, the halophilic bacteria mixed bacterial biology bacterium solution prepared leaves in biological bacterium solution liquid storage tank 4.Described plant branch bar refers to various trees, rice standing grain, the one of which of Mai He or mixture.Described activating agent is the combination of the one or both of non-surface-active agent and anion surfactant, and non-surface-active agent is the activating agent of polyoxyethylene-type or polyol type；Anion surfactant is the activating agent of metal carboxylate and Sulfonates.
2) alkalescence breakdown of emulsion liquid preparation 1, water 90-99% in mass ratio, basic matterial or alkalescence depainting A/B agent 1-10% mixing composition, the alkaline breakdown of emulsion liquid prepared leaves in alkalescence breakdown of emulsion liquid liquid storage tank 2, alkalescence breakdown of emulsion liquid can change the interfacial property of paint, destroy the stabilizing films on interface, double electricity limitans instability of paint are made to take off steady, the viscosity of fall base oil paint coating cloud；Described basic matterial is sheet alkali, the one of which of sodium phosphate or mixture, and just there is sale in alkalescence depainting A/B agent market.
3) lacquer spraying waste gas and organic exhaust gas are collected, and the lacquer spraying waste gas produced and organic exhaust gas pass through collector unit 5 collect and delivered to next process process by air-introduced machine and conveyance conduit in production process.
4) alkalescence spray washing processes, lacquer spraying waste gas and organic exhaust gas that collector unit 5 is collected enter alkalescence spray washing processing unit, described alkaline spray washing processing unit can be cyclone type spray washing device or filler tower spray washing device or combination, alkalescence breakdown of emulsion liquid is spray washing on alkalescence one-level spray washing 6 and two grades of spray washing 7 processing units of alkalescence, lacquer spraying waste gas once contacts with alkalescence breakdown of emulsion liquid, coating cloud is by double absorption breakdown of emulsion, substantially eliminate the coating cloud in lacquer spraying waste gas, it is back in alkalescence breakdown of emulsion liquid liquid storage tank 2 with alkalescence breakdown of emulsion liquid by the coating cloud of double absorption breakdown of emulsion, the coating cloud slag separated from alkalescence breakdown of emulsion liquid liquid storage tank 2 is transported to the recycling of dangerous fixed-end forces center.
null5) biological bacteria spray washing processes，Biological bacteria spray washing processing unit processes is entered back into after alkalescence spray washing processing unit processes，Biological bacteria spray washing processing unit can use cyclone type spray washing device or filler tower spray washing device or combination，Utilize the halophilic bacteria mixed bacterial distinctive dissolubility of biology bacterium solution、Absorbability、Adsorptivity，Halophilic bacteria mixed bacterial biology bacterium solution is spray washing on biological bacteria one-level spray washing 8 and two grades of spray washing 9 processing units of biological bacteria，Packing layer can be hollow ball packing layer，It can also be multilamellar multichannel、Wave filling-material structure，Make the largest surface area of filler、Porosity polyvoltine，Halophilic bacteria mixed bacterial in halophilic bacteria mixed bacterial biology bacterium solution gives birth to and brings up breeding at the packing layer of two groups of processing units，Halophilic bacteria mixed bacterial biology bacterium solution making contact on the lacquer spraying waste gas processed through parlkaline spray washing and organic exhaust gas and biological bacteria one-level spray washing 8 and two grades of spray washing 9 processing units of biological bacteria，The coating cloud of residual is by second adsorption，Organic exhaust gas secondary is dissolved by halophilic bacteria mixed bacterial biology bacterium solution、Absorb and degraded，And be back in biological bacterium solution liquid storage tank with halophilic bacteria mixed bacterial biology bacterium solution，The coating cloud slag separated from biological bacterium solution liquid storage tank 4 is transported to receipts in dangerous fixed-end forces and processes.In described biological bacterium solution liquid storage tank 4, salty composition controls in mass ratio at 1.6-10%, it is ensured that halophilic bacteria mixed bacterial give birth to and bring up breeding environment.
Described lacquer spraying waste gas and organic exhaust gas are dissolved by halophilic bacteria mixed bacterial biology bacterium solution at biological bacteria spray washing processing unit, absorption is carried out in degradation process as follows: 1) Organic Waste Gas Pollution thing contacts and be dissolved in this bacterium solution with halophilic bacteria mixed bacterial biology bacterium solution, waste gas air film dissolves, is adsorbed to halophilic bacteria mixed bacterial surface, and diffuses to the liquid film of halophilic bacteria mixed bacterial.2) the Organic Waste Gas Pollution thing being dissolved in liquid film diffuses further into biomembrane under the promotion of concentration difference, and then by microorganism-capturing therein and absorb.3) the Organic Waste Gas Pollution thing entered in microbial body is degraded as the energy and nutrient substance in the metabolic process of himself, is eventually converted into harmless compound CO2 and H2O through biochemical reaction.Described lacquer spraying waste gas and organic exhaust gas dissolve between the 3-10 second, are adsorbed on halophilic bacteria mixed bacterial biology bacterium solution and filler in biological bacteria, and organic exhaust gas absorbs in biological bacteria in halophilic bacteria mixed bacterial biology bacterium solution and filler and degrades for 10-48 hour.
6) lacquer spraying waste gas and organic exhaust gas gas high altitude discharge 10 up to standard after secondary alkalescence spray washing processes and secondary biological bacteria spray washing processes.
The above, the simply specific embodiment of the present invention, not the present invention is made any pro forma restriction, on the basis of without departing from technical scheme, done simple modification, equivalent variations or modification, each falls within protection scope of the present invention.
Claims (8)
1. lacquer spraying waste gas and a biological purification method for organic exhaust gas, is characterized in that: described biological purification method comprises the steps:
1) biological bacterium solution preparation, prepares many saline solution, containing sodium phosphate 1-5%, sodium sulfite 1-4%, magnesium sulfate 1-6%, sodium chloride 0.5-3%, calcium chloride 0.1-1% in many saline solution in sea water or fresh water or the two mixed liquor in mass ratio；Many saline solution add in mass ratio and is ground into micron-sized plant branch bar 5-15%, soy sauce 1-5%, activating agent 1-5%, pickled fermented under conditions of PH7-11 and temperature 15-40 DEG C brewage more than 10 days, utilize the aspergillosis contained in soy sauce, the alcohol zygosaccharomyces antibacterial that plant branch bar carries, pseudomonas, Achromobacter xylosoxidans, halophilic bacteria in Burkholderia and many saline solution carries out cultivating and breeding becomes halophilic bacteria mixed bacterial, thus obtain and can effectively dissolve the halophilic bacteria mixed bacterial biology bacterium solution with degradation of organic substances matter in the range of 10-40 DEG C, the halophilic bacteria mixed bacterial biology bacterium solution prepared leaves in biological bacterium solution liquid storage tank；
2) lacquer spraying waste gas and organic exhaust gas are collected, and the lacquer spraying waste gas produced and organic exhaust gas collected by collector unit and delivered to next process process by air-introduced machine and conveyance conduit in production process；
null3) biological bacteria spray washing processes，The lacquer spraying waste gas of upper one procedure and organic exhaust gas enter biological bacteria spray washing processing unit，Biological bacteria spray washing processing unit uses least one set cyclone type spray washing device or filler tower spray washing device or combination，Utilize the halophilic bacteria mixed bacterial distinctive dissolubility of biology bacterium solution、Absorbability、Adsorptivity，Halophilic bacteria mixed bacterial biology bacterium solution spray washing on biological bacteria spray washing processing unit，Halophilic bacteria mixed bacterial in halophilic bacteria mixed bacterial biology bacterium solution gives birth to and brings up breeding at packing layer，Lacquer spraying waste gas and halophilic bacteria mixed bacterial biology bacterium solution making contact，The coating cloud of residual is adsorbed，Organic exhaust gas is dissolved by halophilic bacteria mixed bacterial biology bacterium solution、Absorb and degraded，And be back in biological bacterium solution liquid storage tank with halophilic bacteria mixed bacterial biology bacterium solution，The coating cloud slag separated from biological bacterium solution liquid storage tank is transported to the recycling of dangerous fixed-end forces center；
4) lacquer spraying waste gas and organic exhaust gas gas high altitude discharge up to standard after biological bacteria spray washing processes.
Lacquer spraying waste gas the most according to claim 1 and the biological purification method of organic exhaust gas, it is characterized in that: described lacquer spraying waste gas and organic exhaust gas are collected and be additionally provided with alkalescence spray washing processing unit between the process of biological bacteria spray washing, lacquer spraying waste gas and organic exhaust gas that collector unit is collected enter alkalescence spray washing processing unit, enter back into biological bacteria spray washing processing unit processes after alkalescence spray washing processing unit processes；Described alkaline spray washing processing unit uses least one set cyclone type spray washing device or filler tower spray washing device or combination, alkalescence breakdown of emulsion liquid is spray washing on alkalescence spray washing processing unit, lacquer spraying waste gas and organic exhaust gas break emulsion contacts with alkalescence, coating cloud is absorbed breakdown of emulsion, and be back in alkalescence breakdown of emulsion liquid liquid storage tank with alkalescence breakdown of emulsion liquid, the coating cloud slag separated from alkalescence breakdown of emulsion liquid liquid storage tank is transported to the recycling of dangerous fixed-end forces center.
Lacquer spraying waste gas the most according to claim 2 and the biological purification method of organic exhaust gas, it is characterized in that: the preparation of described alkalescence breakdown of emulsion liquid, water 90-99% in mass ratio, basic matterial or alkalescence depainting A/B agent 1-10% mixing composition, the alkaline breakdown of emulsion liquid prepared leaves in alkalescence breakdown of emulsion liquid liquid storage tank, alkalescence breakdown of emulsion liquid can change the interfacial property of paint, destroy the stabilizing films on interface, make double electricity limitans instability of paint take off steady, the viscosity of fall priming paint mist.
Lacquer spraying waste gas the most according to claim 1 and the biological purification method of organic exhaust gas, it is characterized in that: described activating agent is the combination of the one or both of non-surface-active agent and anion surfactant, non-surface-active agent is the activating agent of polyoxyethylene-type or polyol type；Anion surfactant is the activating agent of metal carboxylate and Sulfonates.
Lacquer spraying waste gas the most according to claim 1 and the biological purification method of organic exhaust gas, is characterized in that: in described biological bacterium solution liquid storage tank, salty composition controls in mass ratio at 1.6-10%, it is ensured that halophilic bacteria mixed bacterial give birth to and bring up breeding environment.
Lacquer spraying waste gas the most according to claim 3 and the biological purification method of organic exhaust gas, is characterized in that: described basic matterial is sheet alkali, the one of which of sodium phosphate or mixture；Described plant branch bar refers to various trees, rice standing grain, the one of which of Mai He or mixture.
Lacquer spraying waste gas the most according to claim 1 and the biological purification method of organic exhaust gas, is characterized in that: described lacquer spraying waste gas and organic exhaust gas are dissolved by halophilic bacteria mixed bacterial biology bacterium solution at biological bacteria spray washing processing unit, absorb and carry out as follows in degradation process:
1)
Lacquer spraying waste gas and organic exhaust gas contact and are dissolved in this bacterium solution with halophilic bacteria mixed bacterial biology bacterium solution, and waste gas air film dissolves, is adsorbed to halophilic bacteria mixed bacterial surface, and diffuses to the liquid film of halophilic bacteria mixed bacterial；
2) lacquer spraying waste gas being dissolved in liquid film and organic exhaust gas diffuse further into biomembrane under the promotion of concentration difference, and then by microorganism-capturing therein and absorb；
3) enter the lacquer spraying waste gas in microbial body and organic exhaust gas is degraded as the energy and nutrient substance in the metabolic process of himself, be eventually converted into harmless compound CO2 and H2O through biochemical reaction.
Lacquer spraying waste gas the most according to claim 7 and the biological purification method of organic exhaust gas, it is characterized in that: described lacquer spraying waste gas and organic exhaust gas dissolve between the 3-10 second, are adsorbed on halophilic bacteria mixed bacterial biology bacterium solution and filler in biological bacteria, organic exhaust gas absorbs in biological bacteria in halophilic bacteria mixed bacterial biology bacterium solution and filler and degrades for 10-48 hour.
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| AT401237B (en) * | 1994-10-28 | 1996-07-25 | Eder Guenter | COMPOSITION FOR PURIFYING EXHAUST GASES |
| US6019817A (en) * | 1998-02-25 | 2000-02-01 | Agri Microbe Sales, L.C. | System and method for capturing and destroying HAP/VOC substances using microbial degradation |
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