CN103341318A - Treatment equipment and treatment method for odour pollutant waste gas - Google Patents
Treatment equipment and treatment method for odour pollutant waste gas Download PDFInfo
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- CN103341318A CN103341318A CN2013103045137A CN201310304513A CN103341318A CN 103341318 A CN103341318 A CN 103341318A CN 2013103045137 A CN2013103045137 A CN 2013103045137A CN 201310304513 A CN201310304513 A CN 201310304513A CN 103341318 A CN103341318 A CN 103341318A
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Abstract
The invention relates to a waste gas treatment device, and in particular relates to treatment equipment and a treatment method for odour pollutant waste gas. The invention provides treatment equipment for odour pollutant waste gas. The treatment equipment comprises a gas collection cover, a spraying-adsorbing integrated device and an UV (ultraviolet) photolytic catalysis device which are connected via a pipeline and sequentially arrayed according to the sequence of odour pollutant waste gas treatment, wherein the spraying-adsorbing integrated device comprises a spraying device, an active carbon adsorption layer and a spraying-adsorbing integrated box; and the spraying device and the active carbon adsorption layer are sequentially arranged in the spraying-adsorbing integrated box according to the sequence of odour pollutant waste gas treatment. The invention further provides a treatment method for odour pollutant waste gas. The treatment equipment and the treatment method provided by the invention have the beneficial effects of being capable of effectively removing odour pollutant waste gas, strong in adaptability, high in treatment capacity, free from secondary pollution, low in equipment investment, low in running cost, and small in equipment volume.
Description
Technical field
The present invention relates to emission-control equipment, relate in particular to odorant pollutant treatment of waste gas equipment and processing method.
Background technology
Along with high speed development of national economy, the raising of living standards of the people, people are also more and more higher to the requirement of quality of life, and the existence of stink comes into one's own more.Stench is one of 7 kinds of typical public hazards, is endangering the peaceful comfortable of the healthy of people and life.After pollutants such as dust, sulfur dioxide, nitrogen oxide, people generally are concerned about the prevention on odor pollution problem, in recent years, many scientific research institutions all are devoted to this important function for of research work on the one hand, in order to tackle odorant pollutant waste gas to environment and the serious day by day threat of health, seek a kind of economy, odorant pollutant exhaust gas decomposition technology is very urgent efficiently.Odorant pollutant refers to that all stimulate olfactory organ to cause the gaseous matter that people are unhappy and damage living environment.In a broad sense, we are referred to as foul gas to all odorants that distribute in atmosphere.Foul gas can not only bring the discomfort of people's sense of smell, moves in for a long time in the environment of odor pollution also to cause functional diseases such as apocleisis, insomnia, decrease of memory, mood agitation.Odorant pollutant waste gas can be divided into five classes from its composition.The one, sulfur-containing compound is as hydrogen sulfide, thio-alcohol, thioether class etc.; The 2nd, nitrogenous compound is as ammonia, amine, acid amides, indoles etc.; The 3rd, halogen and derivative thereof are as chlorine, halogenated hydrocarbons etc.; The 4th, hydro carbons is as alkane, alkene, alkynes, aromatic hydrocarbon etc.; The 5th, oxygen containing organic matter is as phenol, alcohol, aldehyde, ketone, organic acid etc.
When selecting the odorant pollutant waste gas processing method, need conscientiously investigate foul gas pollution sources, character, and consider equipment investment and operating cost, take full advantage of existence conditions and in conjunction with performance and the characteristics of each technology, the malodor source of disperseing is preferably sealed focus on.Odorant pollutant treatment of waste gas method mainly contains several classes such as physical deodorization method, chemical deodorizing method, biological deodorizing method.
The physical deodorization method of widespread usage mainly contains at present: (1) masking method: masking method is actually a kind of smelly method that disappears of feeling.It is according to smell abirritation principle, and the stronger pleasant smell and the foul smell fusion that utilize certain material to send to shelter foul smell, become smell and accepted by people.(2) dilution diffusion method: the dilution diffusion method mainly is applicable to the industry stench processing of emission source in a organized way.(3) absorption method: activated carbon is the most frequently used adsorbent, and types such as NACF, spheric active carbon, carbon molecular sieve, pressed active carbon plate are arranged.
The chemical deodorizing method mainly contains: (1) absorption process: absorption process is to utilize the physicochemical properties of odorant, and water or other solvent are absorbed it, needs to add oxidants such as potassium permanganate, hypochlorite usually.(2) firing method: firing method is used for the exhaust-gas treatment of VOC more, and incendiary type commonly used at present has direct burning, catalytic combustion and heat-accumulation combustion.(3) ozone oxidation method: ozone is a kind of strong oxidizing property material, most of odorant exhaustive oxidations can be decomposed, and that therefore uses aspect sewage treatment plant's odor destruction is many.
The biological deodorizing method mainly contains: (1) biofilter: after biofilter formula deodorization method cardinal principle is pretreating process such as odorant pollutant waste gas process dust removal humidification or cooling, rise under the pressure effect and pass biologically active packed layer (filter bed) driving, be decomposed by the metabolism that is bonded to the microorganism on the filtrate and get rid of.(2) bio-trickling filter: the deodorising process of bio-trickling filter method is similar to biological filter process, but the filtrate that uses is the inert material that nutriment can not be provided, as pottery, plastics, polypropylene pellets, active carbon etc.(3) biosorption process: biosorption process claims activated sludge process again, and its principle is that odor pollutant is transferred in the activated sludge, utilizes the microorganism in the activated sludge that it is degraded, and reaches the removal purpose.(4) biological deodorant: biological deodorant is according to microbial deodorization principle exploitation, and it is that the efficient deodorization microorganism that will screen is fixed on the carrier, makes certain formulation, odorant pollutant waste gas by the time just reach the effect of deodorizing.Efficient deodorization microbial bacteria provenance is all from sludge sewage or the soil.
The means of present international and domestic improvement odorant pollutant waste gas mainly adopt: 1, masking method; 2, dilution diffusion method; 3, absorption method; 4, absorption process; 5, firing method; 6, ozone oxidation method; 7, biofilter; 8, bio-trickling filter; 9, biosorption process; 10, biological deodorant etc., there is the equipment investment height in varying degrees in they, the operating cost height, handle narrow-minded, job insecurity, it is big to take up room, treatment effeciency is not high, has secondary pollution etc. problem.
The physical deodorization method mainly contains: (1) masking method: the masking method expense is higher, but easy to use, is mainly used in being not suitable for using the deodorization of situation and the living facilities of deodorization device.Because foul smell is sheltered and do not removed by the aromatic series deodorant, not basic deodour method therefore.(2) dilution diffusion method: the deodorizing method that the dilution diffusion method neither be basic.Adopt the method cost higher, make controlled odorant concentration surpass environmental standard easily, even enlarge pollution range.(3) absorption method: because the adsorption capacity of adsorbent is limited, operating cost height, regeneration difficulty and regenerative process easily cause secondary pollution to environment, and absorption method is mainly used to handle the foul smell of low concentration or uses with other process integration.
The chemical deodorizing method mainly contains: (1) absorption process: this method simple cheap, but easily cause secondary pollution.(2) firing method: firing method is used for the exhaust-gas treatment of VOC more, and incendiary type commonly used at present has direct burning, catalytic combustion and heat-accumulation combustion.This method is applicable to the odorant pollutant waste gas that concentration is higher, and investment, operating cost is higher.(3) ozone oxidation method: when the odorant pollutant exhaust gas concentration was higher, ozone can not the complete oxidation pollutant.In addition, the ozone generator energy consumption is very high, and ozone remaining in the processing procedure causes secondary pollution to environment easily.
The biological deodorizing method is that the material that the physiological metabolism by microorganism will have a stink is transformed, and reaches the purpose of deodorizing.Microorganism can only utilize deliquescent material in the water, and the odorant pollutant that therefore is degraded at first should be dissolved in the water, and transfers in the microbial body again, and the metabolic activity by microorganism is degraded.The biological deodorizing method mainly contains: (1) biofilter: the bad control of this method microbial activity, treatment effeciency are difficult to guarantee.(2) bio-trickling filter: this method complicated operation, and need constantly add nutriment, the application of bio-trickling filter also is subjected to certain restriction, thereby the research trend of bio-trickling filter is to improve in operating system and the raising system on the micro organism quantity.(3) biosorption process: this method also will be improved the dissolubility of odorant pollutant and improve the impact resistance of reactor, could guarantee like this than higher removal efficient.(4) biological deodorant: the microorganism fungus kind difficulty of screening, efficient, the suitable specific odorant pollutant degraded of domestication is very big, and the time cycle is very long.
Summary of the invention
In order to solve the problems of the prior art, the invention provides and a kind ofly can efficiently remove odorant pollutant waste gas, adaptability is strong, treating capacity is big, non-secondary pollution, equipment investment is little, operating cost is low, equipment volume is little odorant pollutant treatment of waste gas equipment and processing method.
The invention provides a kind of odorant pollutant treatment of waste gas equipment, comprise by the pipeline connection and according to the tactic gas skirt of the precedence of odorant pollutant exhaust-gas treatment, spray absorption integrated apparatus and UV photodissociation catalytic unit, described spray absorption integrated apparatus comprises that spray equipment, activated carbon adsorption layer and spray adsorb integrated casing, and described spray equipment, activated carbon adsorption layer are set in sequence in described spray according to the precedence of odorant pollutant exhaust-gas treatment and adsorb in the integrated casing.
As a further improvement on the present invention, be provided with by-pass valve control in the pipeline between described gas skirt, the spray absorption integrated apparatus.
As a further improvement on the present invention, the discharge gate of described UV photodissociation catalytic unit is connected with centrifugal blower by pipeline, and the discharge gate of described centrifugal blower is connected with discharge drum.
As a further improvement on the present invention, be provided with the water fender of avoiding water to flow into activated carbon adsorption layer between described spray equipment, the activated carbon adsorption layer.
As a further improvement on the present invention, described spray equipment comprises shower nozzle, the water pump that is connected with described shower nozzle and the water tank that is connected with described water pump, is provided with packing layer between described shower nozzle, the activated carbon adsorption layer.
As a further improvement on the present invention, be provided with the demist layer between described packing layer, the activated carbon adsorption layer.
As a further improvement on the present invention, described spray adsorbs integrated casing and is provided with packing layer charging aperture and the packing layer discharging opening that is connected with described packing layer, described spray adsorbs integrated casing and is provided with demist layer charging aperture and the demist layer discharging opening that is connected with described demist layer, and described spray adsorbs integrated casing and is provided with activated carbon adsorption layer charging aperture and the activated carbon adsorption layer discharging opening that is connected with described activated carbon adsorption layer.
As a further improvement on the present invention; the filler of described packing layer is multiaspect hollow ball filler; the PP ball filler; Pall ring; any one or its any combination in the Raschig ring filler; the filler layering of described packing layer arranges; described demist layer is stratiform ripple demist plate; layered ripple demist plate is plastic corrugated sheet; the demist filter screen; the demist blinds; in the carbon steel any one or its any combination; described activated carbon adsorption layer is granular activated carbon; any one or its any combination in the fiber-reactive charcoal, described packing layer; the demist layer; activated carbon adsorption layer is drawer structure.
As a further improvement on the present invention, described packing layer is drawer structure, and described demist layer is drawer structure, and described activated carbon adsorption layer is drawer structure.
As a further improvement on the present invention, described spray adsorbs between the charging aperture, spray equipment of integrated casing and is provided with the entrance guiding layer.
As a further improvement on the present invention, the input flow rate of described spray absorption integrated apparatus is greater than output flow.
As a further improvement on the present invention, described spray adsorbs integrated casing and is provided with transparent windows.
As a further improvement on the present invention, described UV photodissociation catalytic unit comprises UV photodissociation catalysis casing and is arranged on the interior UV generating means of described UV photodissociation catalysis casing, is provided with the UV fluorescent tube in the described UV generating means.
The present invention also provides a kind of odorant pollutant treatment of waste gas method, may further comprise the steps:
A, collect odorant pollutant waste gas by gas skirt;
B, the spray equipment that adsorbs in the integrated apparatus by spray spray odorant pollutant waste gas, adsorb odorant pollutant waste gas by the activated carbon adsorption layer in the spray absorption integrated apparatus again;
C, by UV photodissociation catalytic unit photodissociation catalysis odorant pollutant waste gas.
As a further improvement on the present invention, step B comprises following substep:
B1, by the entrance guiding layer water conservancy diversion odorant pollutant waste gas in the spray absorption integrated apparatus;
B2, the spray equipment that adsorbs in the integrated apparatus by spray spray odorant pollutant waste gas;
B3, increase the contact area of water and odorant pollutant waste gas by the packing layer in the spray absorption integrated apparatus;
B4, remove aqueous vapor in the odorant pollutant waste gas by the demist layer in the spray absorption integrated apparatus;
B5, the water fender that adsorbs in the integrated apparatus by spray prevent that water from flowing into activated carbon adsorption layer;
B6, the activated carbon adsorption layer that adsorbs in the integrated apparatus by spray adsorb odorant pollutant waste gas.
As a further improvement on the present invention, the input flow rate of described spray absorption integrated apparatus is greater than output flow.
The invention has the beneficial effects as follows: pass through such scheme, by the spray equipment spray odorant pollutant waste gas in the spray absorption integrated apparatus, again by the activated carbon adsorption layer absorption odorant pollutant waste gas in the spray absorption integrated apparatus, at first utilize the dust granules thing in the spray equipment removal odorant pollutant waste gas, and the temperature of reduction waste gas, avoid dust granules thing and high temperature to the influence of follow-up charcoal absorption and UV photodissociation catalytic treatment, utilize the liquid mist of spray to absorb odorant pollutant simultaneously, further utilize the odorant pollutant in the activated carbon adsorption layer absorption waste gas; This spray absorption integrated apparatus front end is spray equipment, the rear end is activated carbon adsorption layer, the front end spray equipment belongs to Continuous Contact formula gas-liquid mass transfer (contact) equipment, two phase composition longshore currents are to continuous variation, wherein, gas phase is continuous phase, liquid phase is decentralized photo, with the mass transfer apparatus of the filler in the spray equipment as contact member between gas-liquid two-phase, increase gas phase, the liquid phase contact area, and prolong the time of staying, carry out mass transfer by the close contact of gas-liquid two-phase, reach dedusting, cooling, remove the purpose of odorant pollutant, this spray absorption integrated apparatus rear end further utilizes activated carbon adsorption layer that odorant pollutant waste gas is carried out purified treatment, active carbon is a kind of porous carbon containing matter, it has highly developed hole structure, the loose structure of active carbon provides a large amount of surface areas for it, can fully contact with gas, thereby given active carbon peculiar absorption property, made it be very easy to reach the purpose that absorbs pollutant, as magnetic force, all has attractive interaction between all molecules, Just because of this, a large amount of molecule on the active carbon hole wall can produce powerful gravitation, thereby reaches the purpose that will harmful material attracts in the aperture; Further by UV photodissociation catalytic unit remaining odorant pollutant in the waste gas is carried out the cracking purified treatment again, to guarantee complete qualified discharge; UV photodissociation catalytic unit produces high-intensity ultraviolet odorant pollutant waste gas is shone, the molecular chain structure of odorant pollutant fracture under the effect of high-intensity ultraviolet, make macromolecular substances be cracked into small-molecule substance (most of is harmless odorless micromolecular compound), while high energy ultraviolet beam, make a large amount of free electron of generation in the air, these electronics major parts can be obtained by oxygen, form negative oxygen ion O
3 -, have the part negative oxygen ion can lose an electronics and ozonize O
3, simultaneously, high intensity ultraviolet Line beam and photochemical catalyst nano-TiO
2Effect produces hydroxyl radical free radical OH, and hydroxyl radical free radical OH is one of oxidant of tool activity, and oxidability is apparently higher than common oxidant, and with the odorant pollutant reaction, mineralization degree is higher, O
3, O
3 -, OH isoreactivity oxygen oxidisability is very strong, can oxidation of organic compounds and inorganic matter, to main odorant pollutant: ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, methyl sulfide, methyl disulfide, carbon disulfide, styrene etc., oxidation reaction can take place, these active oxygens further carry out the complete oxidation purified treatment to the intermediate product that the part pollutant of escape not processed in the gas, part generate, thereby make contaminant molecule finally be degraded to the harmless odorless compound of little molecule or the complete oxidation mineralising is CO
2And H
2O, avoided independent employing UV photodissociation to handle, there is the intermediate product that the part pollutant is escaped and part generates not processed, decompose incomplete halfway defective, has the advantage that resolution process is thorough, purified treatment efficient is high, reduced odorant pollutant waste gas to the pollution of environment and the harm of health, can efficiently remove odorant pollutant waste gas, adaptability is strong, treating capacity is big, non-secondary pollution, equipment investment is little, operating cost is low, equipment volume is little.
Description of drawings
Fig. 1 is the structural representation of a kind of odorant pollutant treatment of waste gas of the present invention equipment;
Fig. 2 is the front view of the spray absorption integrated apparatus of a kind of odorant pollutant treatment of waste gas of the present invention equipment;
Fig. 3 is the vertical view of the spray absorption integrated apparatus of a kind of odorant pollutant treatment of waste gas of the present invention equipment;
Fig. 4 is the structural representation of the UV photodissociation catalytic unit of a kind of odorant pollutant treatment of waste gas of the present invention equipment.
The specific embodiment
The present invention is further described below in conjunction with description of drawings and the specific embodiment.
Drawing reference numeral among Fig. 1 to Fig. 4 is: gas skirt 1; Pipeline 2; By-pass valve control 3; Spray absorption integrated apparatus 4; Base plate 41; Activated carbon adsorption layer 42; Water fender 43; Demist layer 44; Packing layer 45; Water tank 46; Shower nozzle 47; Entrance guiding layer 48; Transparent windows 49; Packing layer charging aperture 410; Demist layer charging aperture 411; Activated carbon adsorption layer charging aperture 412; Packing layer discharging opening 413; Demist layer discharging opening 414; Activated carbon adsorption layer discharging opening 415; UV photodissociation catalytic unit 5; UV photodissociation catalysis casing 51; UV generating means 52; UV fluorescent tube 53; Centrifugal blower 6; Discharge drum 7.
As shown in Figures 1 to 4, a kind of odorant pollutant treatment of waste gas equipment, comprise by pipeline 2 connections and according to the tactic gas skirt 1 of the precedence of odorant pollutant exhaust-gas treatment, spray absorption integrated apparatus 4 and UV photodissociation catalytic unit 5, described spray absorption integrated apparatus 4 comprises spray equipment, activated carbon adsorption layer 42 and the integrated casing of spray absorption, described spray equipment, activated carbon adsorption layer 42 is set in sequence in described spray according to the precedence of odorant pollutant exhaust-gas treatment and adsorbs in the integrated casing, described spray adsorbs integrated casing and is connected with base 41, described base 41 can be preferably tabular, is used for fixing described spray and adsorbs integrated casing.
As shown in Figure 1, be provided with by-pass valve control 3 in the pipeline 2 between described gas skirt 1, the spray absorption integrated apparatus 4, described by-pass valve control 3 is used for control odorant pollutant waste gas and whether enters described spray absorption integrated apparatus 4.
As shown in Figures 1 to 4, the discharge gate of described UV photodissociation catalytic unit 5 is connected with centrifugal blower 6 by pipeline 2, and the discharge gate of described centrifugal blower 6 is connected with discharge drum 7, and described centrifugal blower 6 is used for detaching odorant pollutant waste gas.
As shown in Figure 2 to Figure 3, be provided with the water fender 43 of avoiding water to flow into activated carbon adsorption layer 42 between described spray equipment, the activated carbon adsorption layer 42, described water fender 43 prevents the liquid of spray equipment from flowing to activated carbon adsorption layer 42, and this way, guarantees that the treatment effect of activated carbon adsorption layer 42 is in optimum state.。
As shown in Figure 2 to Figure 3, described spray equipment comprises shower nozzle 47, the water pump that is connected with described shower nozzle 47 and the water tank 46 that is connected with described water pump, be provided with packing layer 45 between described shower nozzle 47, the activated carbon adsorption layer 42, described water tank 46 is used for storing the liquid of spray, described shower nozzle 47 is used for the atomization of liquid, increase the gas-liquid contact area, simultaneously, packing layer 45 can further increase contact area and prolong the time of staying.
As shown in Figure 2 to Figure 3, be provided with demist layer 44 between described packing layer 45, the activated carbon adsorption layer 42.
As shown in Figure 2 to Figure 3, described spray adsorbs integrated casing and is provided with packing layer charging aperture 410 and the packing layer discharging opening 413 that is connected with described packing layer 45, described spray adsorbs integrated casing and is provided with demist layer charging aperture 411 and the demist layer discharging opening 414 that is connected with described demist layer 44, and described spray adsorbs integrated casing and is provided with activated carbon adsorption layer charging aperture 412 and the activated carbon adsorption layer discharging opening 415 that is connected with described activated carbon adsorption layer 42.
As shown in Figure 2 to Figure 3, spray absorption integrated apparatus 4 can be horizontal, also can be vertical.The filler of packing layer 45 can be ball filler such as multiaspect hollow ball; Pall ring; any one or its any combination in the Raschig ring filler; the number of plies of packing layer 45 can be according to waste gas tolerance; concentration; composition and increase or reduce; very big as waste gas tolerance; concentration is higher; the number of plies of packing layer 45 can increase to 2 ~ 3 layers; equally; demist layer 44; the number of plies of activated carbon adsorption layer 42 also can increase and decrease adjusting according to the situation of waste gas; demist layer 44 is general to adopt corrugated platings such as (as carbon steel) of plastics or other materials; the demist filter screen; forms such as demist blinds, the filler of activated carbon adsorption layer 42 can adopt granular activated carbon; also can adopt forms such as fiber-reactive charcoal.Packing layer 45, demist layer 44, activated carbon adsorption layer 42 can adopt the drawer form to change filler, also can adopt form such as charging and discharging mouth to change filler.
As shown in Figure 2 to Figure 3, described spray adsorbs between the charging aperture, spray equipment of integrated casing and is provided with entrance guiding layer 48, entrance guiding layer 48 is the scalar horn mouth, have a plurality of circular channels all around, entrance guiding layer 48 is preferably the entrance guiding plate, and the diffusion that entrance guiding layer 48 is conducive to gas is flowed, described packing layer 45 is drawer structure, described demist layer 44 is drawer structure, and described activated carbon adsorption layer 42 is drawer structure, can adopt the drawer form to change filler.
As shown in Figures 1 to 4, the input flow rate of described spray absorption integrated apparatus 4 is greater than output flow, be the area of the described spray charging aperture that adsorbs integrated casing adsorbs the discharging opening of integrated casing greatly less than described spray area, be conducive to form negative pressure, prevent that the inside gas from leaking out.
As shown in Figure 2 to Figure 3, described spray adsorbs integrated casing and is provided with transparent windows 49, and described transparent windows 49 is selected the lucite material for use, is used for observing the inner case of spray absorption integrated apparatus 4, in order to overhaul of the equipments.
As shown in Figure 4, described UV photodissociation catalytic unit 5 comprises UV photodissociation catalysis casing 51 and the UV generating means 52 that is arranged in the described UV photodissociation catalysis casing 51, be provided with UV fluorescent tube 53 in the described UV generating means 52, UV is ultraviolet abbreviation, English full name is ultraviolet, ultraviolet wavelength is: 184.9nm, Fig. 4 only is structural representation, concrete equipment size, the quantity of UV fluorescent tube 53, the number of plies, the number of plies of catalytic purification net is decided according to concrete waste gas actual conditions, as: waste gas tolerance is bigger, concentration is higher, then by PLC(Programmable Logic Controller, programmable logic controller (PLC)) opens which floor UV fluorescent tube 53 automatically more, the quantity of every layer of UV fluorescent tube 53 also can be regulated increase and decrease, every layer of UV fluorescent tube 53 corresponding one deck TiO when design
2Catalytic purification net (titanium dioxide catalytic purification net).
The present invention also provides a kind of odorant pollutant treatment of waste gas method, may further comprise the steps:
A, collect and import by gas skirt 1 and need the odorant pollutant waste gas handled;
B, the spray equipment that adsorbs in the integrated apparatus 4 by spray spray odorant pollutant waste gas, adsorb the odorant pollutant waste gas by the activated carbon adsorption layer 42 in the spray absorption integrated apparatus 4 again;
C, by UV photodissociation catalytic unit 5 photodissociation catalysis odorant pollutant waste gas.
As a further improvement on the present invention, step B comprises following substep:
B1, by the entrance guiding layer 48 water conservancy diversion odorant pollutant waste gas in the spray absorption integrated apparatus 4;
B2, the spray equipment that adsorbs in the integrated apparatus 4 by spray spray odorant pollutant waste gas;
B3, increase the contact area of water and odorant pollutant waste gas by the packing layer 45 in the spray absorption integrated apparatus 4;
B4, the aqueous vapor of removing in the odorant pollutant waste gas by the demist layer 44 in the spray absorption integrated apparatus 4;
B5, the water fender 43 that adsorbs in the integrated apparatus 4 by spray prevent that water from flowing into activated carbon adsorption layer;
B6, the activated carbon adsorption layer 42 that adsorbs in the integrated apparatus 4 by spray adsorb the odorant pollutant waste gas.
As shown in Figures 1 to 4, the input flow rate of described spray absorption integrated apparatus 4 is greater than output flow.
Provided by the inventionly a kind ofly can efficiently remove odorant pollutant waste gas, adaptability is strong, treating capacity is big, non-secondary pollution, equipment investment is little, operating cost is low, odorant pollutant treatment of waste gas equipment and processing method that equipment volume is little, handle by 4 pairs of odorant pollutant waste gas of spray absorption integrated apparatus, at first utilize the dust granules thing in the spray equipment removal odorant pollutant waste gas, and the temperature of reduction waste gas, avoid dust granules thing and high temperature to the influence of follow-up charcoal absorption and UV photodissociation catalytic treatment, utilize the liquid mist that sprays to absorb odorant pollutant simultaneously, further utilize the odorant pollutant in the activated carbon adsorption layer 42 absorption waste gas; These spray absorption integrated apparatus 4 front ends are spray equipment, the rear end is activated carbon adsorption layer 42, the front end spray equipment belongs to Continuous Contact formula gas-liquid mass transfer (contact) equipment, two phase composition longshore currents are to continuous variation, wherein, gas phase is continuous phase, liquid phase is decentralized photo, with the mass transfer apparatus of the packing layer 45 in the spray equipment as contact member between gas-liquid two-phase, increase gas phase, the liquid phase contact area, and prolong the time of staying, carry out mass transfer by the close contact of gas-liquid two-phase, reach dedusting, cooling, remove the purpose of odorant pollutant, the rear end of spray equipment is equipped with demist layer 44, in order to remove the moisture in the waste gas, avoid moisture to the influence of subsequent treatment, spray absorption integrated apparatus 4 rear ends further utilize activated carbon adsorption layer 42 adsorbent equipments that odorant pollutant waste gas is carried out purified treatment, active carbon is a kind of porous carbon containing matter, it has highly developed hole structure, the loose structure of active carbon provides a large amount of surface areas for it, can fully contact with gas, thereby give active carbon peculiar absorption property, make it be very easy to reach the purpose that absorbs pollutant; As magnetic force, all have attractive interaction between all molecules, Just because of this, a large amount of molecule on the active carbon hole wall can produce powerful gravitation, thereby reaches the purpose that will harmful material attracts in the aperture.
The present invention further carries out the cracking purified treatment by remaining odorant pollutant in 5 pairs of waste gas of UV photodissociation catalytic unit, to guarantee complete qualified discharge: UV fluorescent tube 53 generation high-intensity ultraviolets shine odorant pollutant waste gas in the UV photodissociation catalytic unit 5, the molecular chain structure of odorant pollutant fracture under the effect of high-intensity ultraviolet, make macromolecular substances be cracked into small-molecule substance (most of is harmless odorless micromolecular compound), while high energy ultraviolet beam, make a large amount of free electron of generation in the air, these electronics major parts can be obtained by oxygen, form negative oxygen ion O
3 -, have the part negative oxygen ion can lose an electronics and ozonize O
3, simultaneously, high intensity ultraviolet Line beam and photochemical catalyst nano-TiO
2Effect produces hydroxyl radical free radical OH, and hydroxyl radical free radical OH is one of oxidant of tool activity, and oxidability is apparently higher than common oxidant, and with the odorant pollutant reaction, mineralization degree is higher, O
3, O
3 -, OH isoreactivity oxygen oxidisability is very strong, can oxidation of organic compounds and inorganic matter, to main odorant pollutant: ammonia, trimethylamine, hydrogen sulfide, methyl mercaptan, methyl sulfide, methyl disulfide, carbon disulfide, styrene etc., oxidation reaction can take place, these active oxygens further carry out the complete oxidation purified treatment to the intermediate product that the part pollutant of escape not processed in the gas, part generate, thereby make contaminant molecule finally be degraded to the harmless odorless compound of little molecule or the complete oxidation mineralising is CO
2And H
2O, avoided independent employing UV photodissociation to handle, there is the intermediate product that the part pollutant is escaped and part generates not processed, decompose incomplete halfway defective, a kind of odorant pollutant treatment of waste gas equipment provided by the invention and processing method resolution process are thorough, purified treatment efficient height has reduced odorant pollutant waste gas to the pollution of environment and the harm of health.
A kind of odorant pollutant treatment of waste gas equipment provided by the invention and processing method have the following advantages:
1, equipment can every days 24 continuous throughout the twenty-four hour24, and stable and reliable operation.
2, energy consumption is low, operating cost is low: can be at room temperature and catalyst reaction, need not heating, greatly saved the energy, cleaning equipment does not have any mechanical action, noiselessness, need not personal management and regular maintenance, only need to make regular check on, the cleaning equipment energy consumption is low, and the cleaning equipment windage is extremely low, be generally less than 600pa, can save a large amount of air draft power consumptions.
3, easy-to-use: as can to regulate according to air quantity variation and field condition during design.
4, waste gas need not preliminary treatment: odorant pollutant waste gas need not to carry out special preliminary treatment, as heat etc.
5, occupation area of equipment is little, from heavy and light: be suitable for arranging special occasions such as compact, that the place is narrow and small.
6, be applicable to the waste gas of handling various concentration, various air quantity, be particularly suited for handling the gas of scent of and the big air quantity of low concentration; Cleaning equipment automation controllable degree height, adopt PLC to control automatically, can carry out auto-control to purification apparatus power output and purification efficiency according to odorant pollutant toxic emission composition, concentration, tolerance, as the number of plies of the number of plies that increases or reduce packing layer 45 and thickness, activated carbon adsorption layer 42 and thickness, automatically regulate the spouting liquid of shower nozzle 47, open the quantity of the high energy UV fluorescent tube 53 of different radicals automatically, both reached waste gas best purification treatment effect, greatly reduce energy consumption again, realize the doulbe-sides' victory of environmental benefit, economic benefit.
7, do not produce radiation.
8, can thoroughly absorb, poisonous and harmful substance in the absorption, cracking, oxidation processes odorant pollutant waste gas, do not produce accessory substance, catalyst adaptability is strong, and the accessory substance that produces in the UV photolysis of optionally degrading, simultaneously recycling O
3, O
3 -, OH isoreactivity oxygen carries out the complete oxidation purified treatment to the pollutant of the not processed escape of part in the gas, the intermediate product of generation, thereby make contaminant molecule finally be degraded to the harmless odorless compound of little molecule or the complete oxidation mineralising is CO
2And H
2O, after the odorant pollutant waste gas purification was handled, gas reached innoxious high standard discharging fully.
Above content be in conjunction with concrete preferred embodiment to further describing that the present invention does, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. odorant pollutant treatment of waste gas equipment, it is characterized in that: comprise by the pipeline connection and according to the tactic gas skirt of the precedence of odorant pollutant exhaust-gas treatment, spray absorption integrated apparatus and UV photodissociation catalytic unit, described spray absorption integrated apparatus comprises that spray equipment, activated carbon adsorption layer and spray adsorb integrated casing, and described spray equipment, activated carbon adsorption layer are set in sequence in described spray according to the precedence of odorant pollutant exhaust-gas treatment and adsorb in the integrated casing.
2. odorant pollutant treatment of waste gas equipment according to claim 1, it is characterized in that: be provided with by-pass valve control in the pipeline between described gas skirt, the spray absorption integrated apparatus, the discharge gate of described UV photodissociation catalytic unit is connected with centrifugal blower by pipeline, and the discharge gate of described centrifugal blower is connected with discharge drum.
3. odorant pollutant treatment of waste gas equipment according to claim 1 is characterized in that: be provided with the water fender of avoiding water to flow into activated carbon adsorption layer between described spray equipment, the activated carbon adsorption layer.
4. odorant pollutant treatment of waste gas equipment according to claim 1, it is characterized in that: described spray equipment comprises shower nozzle, the water pump that is connected with described shower nozzle and the water tank that is connected with described water pump, is provided with packing layer between described shower nozzle, the activated carbon adsorption layer.
5. odorant pollutant treatment of waste gas equipment according to claim 4 is characterized in that: be provided with the demist layer between described packing layer, the activated carbon adsorption layer.
6. odorant pollutant treatment of waste gas equipment according to claim 1 is characterized in that: described spray adsorbs between the charging aperture, spray equipment of integrated casing and is provided with the entrance guiding layer.
7. odorant pollutant treatment of waste gas equipment according to claim 1 is characterized in that: the input flow rate of described spray absorption integrated apparatus is greater than output flow.
8. an odorant pollutant treatment of waste gas method is characterized in that, may further comprise the steps:
A, collect odorant pollutant waste gas by gas skirt;
B, the spray equipment that adsorbs in the integrated apparatus by spray spray odorant pollutant waste gas, adsorb odorant pollutant waste gas by the activated carbon adsorption layer in the spray absorption integrated apparatus again;
C, by UV photodissociation catalytic unit photodissociation catalysis odorant pollutant waste gas.
9. odorant pollutant treatment of waste gas method according to claim 8 is characterized in that step B comprises following substep:
B1, by the entrance guiding layer water conservancy diversion odorant pollutant waste gas in the spray absorption integrated apparatus;
B2, the spray equipment that adsorbs in the integrated apparatus by spray spray odorant pollutant waste gas;
B3, increase the contact area of water and odorant pollutant waste gas by the packing layer in the spray absorption integrated apparatus;
B4, remove aqueous vapor in the odorant pollutant waste gas by the demist layer in the spray absorption integrated apparatus;
B5, the water fender that adsorbs in the integrated apparatus by spray prevent that water from flowing into activated carbon adsorption layer;
B6, the activated carbon adsorption layer that adsorbs in the integrated apparatus by spray adsorb odorant pollutant waste gas.
10. odorant pollutant treatment of waste gas method according to claim 9 is characterized in that: the input flow rate of described spray absorption integrated apparatus is greater than output flow.
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| CN2013103045137A CN103341318A (en) | 2013-07-19 | 2013-07-19 | Treatment equipment and treatment method for odour pollutant waste gas |
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| CN103994449A (en) * | 2014-05-30 | 2014-08-20 | 江苏百纳环保设备有限公司 | Compound waste gas treatment device |
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| CN106215532A (en) * | 2016-06-30 | 2016-12-14 | 重庆西亭科技有限公司 | Industrial waste gas treatment device and technique |
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| CN103994449A (en) * | 2014-05-30 | 2014-08-20 | 江苏百纳环保设备有限公司 | Compound waste gas treatment device |
| CN106215532A (en) * | 2016-06-30 | 2016-12-14 | 重庆西亭科技有限公司 | Industrial waste gas treatment device and technique |
| CN107051128A (en) * | 2017-06-15 | 2017-08-18 | 成都尚智恒达科技有限公司 | A kind of multistage exhaust treatment system |
| CN107837678A (en) * | 2017-10-27 | 2018-03-27 | 东莞市益国环保工程有限公司 | A kind of photocatalysis adsorption plant and method for being used to handle waste gas |
| CN108043187A (en) * | 2017-12-05 | 2018-05-18 | 无锡市华贝洁环保科技有限公司 | A kind of VOCs exhaust-gas treatments combination unit |
| CN108261919A (en) * | 2018-02-11 | 2018-07-10 | 宁波缘森环保科技有限公司 | A kind of integral waste gases abatement equipment |
| CN108815982A (en) * | 2018-09-03 | 2018-11-16 | 浙江海洋大学 | A kind of fish powder waste gases processing unit |
| CN108993115A (en) * | 2018-09-14 | 2018-12-14 | 浙江欣欣天恩水产饲料有限公司 | A kind of emission-control equipment |
| CN109603486A (en) * | 2019-01-24 | 2019-04-12 | 查红平 | A kind of organic exhaust gas adsorption electrolysis unit |
| CN109603486B (en) * | 2019-01-24 | 2024-04-05 | 查红平 | Organic waste gas adsorbs electrolytic device |
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| CN110026047A (en) * | 2019-05-16 | 2019-07-19 | 河北润德环境工程有限公司 | A kind of exhaust gas centralized receipts pretreatment unit |
| CN110772912A (en) * | 2019-09-30 | 2020-02-11 | 广州紫科环保科技股份有限公司 | Purification equipment for comprehensive waste gas of biological pharmaceutical factory |
| CN114149158A (en) * | 2021-11-17 | 2022-03-08 | 上海燧德能源科技有限公司 | A filler mixing arrangement that is used for human excrement and urine to decompose fast under high humidity state |
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Application publication date: 20131009 |