302results about How to "Improve deodorization efficiency" patented technology

Object of this invention is to provide a photocatalyst deodorizer wherein it is possible to extend the life and increasing an efficiency of filters, and it is possible to activate a photocatalyst which a deodorizing filter carries, by optimizing the positional relation between a tubular light source for emitting light to activatee a photocatalyst and a deodorizing filter, and an emission angle of the tubular light source. Further a photocatalyst deodorizer of this invention makes it easy to maintenance and replacement of filters and the tubular light source. A photocatalyst deodorizer comprising an air purifying portion which is removably arranged in an air passage and constructed from a dust collecting filter, a deodorizing filter carrying a photocatalyst, and a tubular light source arranged in that order in a stack, or constructed from said dust collecting filter, said tubular light source and said deodorizing filter arranged in that order in a stack; wherein said tubular light source is arranged at a position which obtains total surface irradiation of one side of said deodorizing filter, and set at an emission angle which obtains total surface irradiation.

The invention discloses a microorganism deodorant and a preparation method thereof. The microorganism deodorant has the following strain composition: 106-109 / mL of Lactobacillus acidophilus, 106-109 / mL of Bacillus pumilus, 106-109 / mL of Bacillus subtilis, 105-107 / mL of Pseudomonas fluorescens, 105-107 / mL of Rhodopseudomonas palustris, 104-106 / mL of Bantu Brettanomyces, 104-106 / mL of common Candida albican, 104-106 / mL of Penicillium expansum, 104-106 / mL of Rhizopus oryzae, 104-106 / mL of Trichoderma viride, 104-106 / mL of Streptomyces Microflavus and 104-106 / mL of Streptomyces griseus. Accordingto the microorganism deodorant, the release amount of obnoxious gas can be effectively lowered, and the technical support is provided for effectively processing fetor in livestock and poultry farms and protecting environment.

The invention relates to a compound air filter material and a method for preparing the same. The composite air filter material used for filter bags comprises a protective layer, a deodorizing layer and a filter layer, wherein the protective layer and the filter layer are compounded on two side faces of the deodorizing layer respectively; the protective layer is made of wood pulp fiber filter paper, spun-bond non-woven fabric or spun-lace non-woven fabric, and the gram weight of the material of the protective layer is 10 to 200g / m; the deodorizing layer is made of one of active carbon, zeolite , sodium bicarbonate, magnesium aluminum silicates and silica gel or a mixture of any two of the wood pulp fiber filter paper, the spun-bond non-woven fabric and the spun-lace non-woven fabric, and the gram weight of the material of the deodorizing layer is 10 to 300g / m; and the filter layer is made of melt-blown non-woven fabric, wood pulp fiber filter paper or SMS non-woven fabric, and the gram weight of the material of the filter layer is 10 to 100g / m. The compound air filter material has high filtration efficiency and deodorization efficiency, low filtration resistance and high dust capacity.

The invention discloses a deodorant special for livestock and poultry farms and application thereof, wherein the deodorant is composed of the following strains: 106-108 lactobacillus acidophilus per milliliter, 107-109 lactobacillus reuteri per milliliter, 104-106 bacillus polymyxa per milliliter, 106-108 bacillus lentus per milliliter, 106-109 bacillus coagulans per milliliter, 104-106 enterococcus faecalis per milliliter, 107-109 enterococcus faecium per milliliter, 104-107 candida rugosa per milliliter, 104-107 candida valida per milliliter, 104-106 pseudomonas farinofermentans per milliliter, 106-108 rhodopseudomonas palustris per milliliter, 104-106 geotrichum suaveolens per milliliter, 106-108 aspergillus clavatus per milliliter, 106-108 rough spore aspergillus per milliliter and 106-109 streptomyces globisporus per milliliter. According to the invention, excrements in a poultry house and excrements for accumulative fermentation are treated through a spraying manner, so as to effectively reduce the release amount of malodorous gases, and provide a technical support for the effective treatment of malodor in the livestock and poultry farms and the environmental protection. Besides, the deodorant special for livestock and poultry farms can also be sprayed to the livestock and poultry body surfaces, to keep the livestock and poultry body surfaces clean and sanitary, and be conducive to the growth of livestock and poultry.

The invention discloses a sewage treatment plant odor collection and treatment system and method. The system comprises a gas collecting cover, a draft fan, a pretreatment spraying tower, a sterilization pool, a biological drip filtering tower, a centrifugal fan, an active carbon adsorption device and a regulating pool, wherein the gas collecting cover is arranged above a building pool body radiating odor, and is communicated with the lower part of a pretreatment spraying tower through the draft fan; the sterilization pool is communicated with the upper part of the pretreatment spraying tower;waste liquid discharged from the bottom of the pretreatment spraying tower flows back to the regulating pool through a pipeline; the lower part of the biological drip filtering tower is communicated with the top of the pretreatment spraying tower through a pipeline; odor subjected to pretreatment enters the biological drip filtering tower; a group of spray nozzles are arranged on the top of the biological drip filtering tower and downwards and intermittently spray nutrition liquid; the active carbon adsorption device is communicated with the top of the biological drip filtering tower through acentrifugal fan and is used for performing further treatment on the waste gas treated in the biological drip filtering tower and then discharging the waste gas in a standard reaching way. The investment is saved; the occupied area is small; the equipment is simple; the deodorization efficiency is high; the pollution bearing load is high; the operation cost is low.

The invention relates to a kitchen waste pretreatment equipment and technology. The equipment is characterized by comprising a shell body, a garbage can lifting device mounted on one side of the shell body, a feeding device mounted on the upper portion of the shell body, an automatic separation device mounted in the shell body, an extrusion device mounted in the shell body, a smashing device mounted in the shell body, a fermenting and drying device mounted in the shell body and an ionization deodorization device mounted in the shell body. The kitchen waste pretreatment equipment and technology has the advantages of feeding and sorting automatically, being good in solid-liquid separation effect, high in efficiency, high in dehydration rate, high in fermentation treatment speed, even in fermentation, high in heating speed, capable of oxygenating automatically during fermentation, up to standard on gas deodorization, environmentally friendly, free of pollution and convenient to operate, saving manpower and the like, can process the kitchen waste generated by 300 to 500 people in 24 hours, and output 150kg to 200kg organic fertilizer with the moisture content not more than 25%.

The invention relates to a method for removing and inhibiting fishy smell of aquatic animal enzymatic hydrolysate. Edible grade alcohol is added into the aquatic animal enzymatic hydrolysate to conduce heating reaction for removing the fishy smell, edible grade alcohol treatment liquid is obtained, then, green tea extracts, water-soluble ginger oil and citric acid are added into the edible grade alcohol treatment liquid, or marigold extracts, water-soluble ginger oil and citric acid are added into the edible grade alcohol treatment liquid, primary fishy smell eliminating treatment liquid is obtained after the reaction, then, green tea extracts and water-soluble ginger oil are added into the primary fishy smell eliminating treatment liquid, or the marigold extracts and the water-soluble ginger oil are added into the primary fishy smell eliminating treatment liquid, and the aquatic animal enzymatic hydrolysate after the fishy smell elimination is obtained after the reaction. The method has the advantages that the fishy smell eliminating effect is good, the nutrition and active ingredients in the aquatic animal enzymatic hydrolysate are not basically lost, in addition, the anti-bacterium fresh keeping effect is good, the operation is simple, the equipment requirement is low, the reaction condition is mild, the control is easy, and the method is suitable for the fields of sea functional food, nutrition products, medicine, cosmetics and the like.

The invention relates to low-odor PVC powder. The low-odor PVC powder comprises 100 parts of PVC resin, 35-50 parts of plasticizer, 5-10 parts of heat stabilizer, 0.2-1.0 part of light stabilizer, 0.3-1.0 part of antioxidant, 3-5 parts of dispersant and 1-5 parts of deodorant. The deodorant is formed by at least one of nano calcium carbonate, nano zinc oxide, fumed silica, precipitated silica and hot-melt rubber powder. The low-odor PVC powder further comprises a coupling agent formed by at least one of an aluminate coupling agent, a borate coupling agent, an aluminum-titanium coupling, a titanate coupling and dispersible rubber powder, and the mass ratio of the coupling agent to the deodorant is (1-5):100. The invention further provides a preparing method of the low-odor PVC powder. The surface of the deodorant is modified by the coupling agent, and the compatibility between the deodorant and the PVC matrix is improved.

A biologic deodoring system for sewage and chemical odor is composed of upper and lower reactors, sprinkling cylinder, the isolating layers at both ends of said both reactor, filler in both reactor, water circulator with two sprinklers, and gas inlet and exhaust unit. Its method includes such steps as culturing active sludge, preparing film, starting system and adding circulated liquid. Its advantages are high efficiency, no blocking and small size.

The invention relates to an integrated type semi-aerobic stabilizing and integrating system for refuse landfill. The system comprises the following components: a landfill layer, a leachate collecting and discharge guiding layer which is arranged at the bottom of the landfill, a leachate collecting well which communicates with leachate collecting and discharge guiding layer, a semi-aerobic landfill gas guiding unit which is arranged in the landfill, a leachate recharging layer which is arranged on the landfill layer, and a leachate circulation pipeline for communicating the leachate recharging layer and the leachate collecting well; the landfill layer is prepared by mixed landfill of raw house refuse and incinerator slags of house refuse. Compared with the prior art, the system has the advantages of integral simple structure, construction convenience, low construction cost, and energy saving and environmental protection; the traditional semi-aerobic landfill technology of raw house refuse is improved, and a semi-aerobic stabilizing process during mixed landfill of raw house refuse and incinerator slags of house refuse is reinforced; and the system has a wide usage range and a good application prospect.

The invention discloses a preparation method of a plant extracting solution deodorant. The deodorant uses Chinese herbal medicine as raw materials, a volatile oil extractor is adopted for extraction to obtain water extracting solution and volatile oil, the water extracting solution is subjected to separation and refining processes to obtain water extracts, then, the water extracts, the volatile oil, de-ionized water and essence are mixed for emulsification, and finally, the plant extracting solution deodorant disclosed by the invention is prepared through filtering. The plant extracting solution deodorant disclosed by the invention has the characteristics that the use is safe and convenient, the environmental-friendly effect, no toxicity and no harm are realized, through field experiment detection in a garbage transfer station, the ammonia gas removal rate can reach about 63 percent, the odor concentration inside and outside the garbage transfer station after deodorization can be much lower than the national standard, the peripheral air quality and the work condition in the garbage transfer station are greatly improved, in addition, the use cost of the deodorant is very low, and the deodorant is suitable for being used for deodorization in the garbage transfer station of urban communities.

The invention discloses a multilayer mixed culture biological deodorizing filter tower and a method for removing malodorous gases, relating to the application of special microorganism culture. The multilayer mixed culture biological deodorizing filter tower comprises a tower body, a plurality of deodorizing layers (5), a gas distributing head (4), a gas pump (2), a water pump (1), a water pipe (13), an atomization water-spraying cock (9), a humidity sensor (8), a microcomputer (10) and a rain shed (15), wherein the tower body is a column body and is internally provided with the deodorizing layers, each deodorizing layer adopts different substrates and different cultures for removing different malodorous materials in the malodorous gases. Because the cultures are layered, functional cultures are not interfered; in addition, because the deodorizing layers are layered, the loss of the pressure of the gas pump is reduced to enable the deodorizing efficiency to be greatly improved and continuously efficient without producing secondary pollution, and the operation cost is low.

The invention provides a microorganism bacterium agent of deodorant use for household garbage and cultivation feces and a preparation method and application. The microorganism bacterium agent is prepared from, by weight, 30-70 parts of saccharomyces cerevisiae, 10-60 parts of lactobacillus acidophilus, 5-30 parts of bacillus natto, 5-20 parts of bacillus subtilis, and 10-30 parts of white-rot fungi. The microorganism bacterium agent of deodorant use for household garbage and cultivation feces has the advantages that strain has the capability of inhibiting the growth and reproduction of rot bacteria, and provides the deodorization effect on odor substances from the source. The bacterium agent has a high number of efficient live bacteria, handles the same amount of materials, and is capable of reducing the dosage of bacterium agent and reducing greatly the operating costs.

The invention relates to a compound deodorant of plant extracts and biological enzymes. The compound deodorant comprises the following components in parts by weight: 5 parts of a plant extract composition, 20 parts of a biological enzyme composition, 2-4 parts of zinc diricinoleate, 0.01-0.05 part of potassium sorbate, 3-6 parts of ethanol, 5-8 parts of fatty acid glyceride, and 56.95-64.99 partsof deionized water. The specially selected biological enzymes contained in the product can carry out neutralization and condensation reactions with groups in the odorous substances such as milk thiolgroups, amino groups, aldehyde groups, amine groups and the like, and the pollutants in the odorous gases are transformed into harmless carbohydrates. The plant extracts carry out reactions with odorous molecules mainly by adsorbing odorous gases, and the odorous gases are transformed into odorless and harmless carbohydrates, so that the rapid deodorization effect is achieved. The effective components of the plant extracts in the product are all extracted from natural plants, do not have any toxic and side effects on human body, do not stimulate skins, have extremely low inhaling toxicity, anddo not cause secondary pollution.

The invention relates to composite biological deodorization spray for pets and a preparation method thereof. The spray is suitable for solving the problems of halitosis, body odor, feces odor and thelike of dogs and cats. The deodorization spray comprises, by mass, 5-8% of a Spanish bayonet extract, 4-5% of a green tea extract, 6-8% of an origanum oil extract, 4-5% of a persimmon extract, 4-5% ofa horseradish extract, 3-4% of zinc diricinoleate, 5-6% of an emulsifier, 1-2% of a stabilizing agent, 1-2% of a pH value regulator and the balance purified water. It is proved through deodorizationeffect identification that the deodorization performance of the spray is good, and the spray can quickly eliminate ammonia gas, hydrogen sulfide, methyl mercaptan, dimethyl sulfide, dimethyl disulfideand various common odor molecules of the pets within 5 minutes. Meanwhile, pathogenic microorganisms can be effectively inhibited and killed, and generation of odor can be inhibited from the source.

The invention discloses a dirt decomposition deodorant for a portable toilet. The decomposition deodorant contains the following raw materials in percentage by weight: 6-30% of cellulase, 1-15% of protease, 1-15% of amylase, 1-15% of lipase, 1-15% of complex bacteria, 10-50% of morus alba tortuosa leaf extract, 10-20% of dextrin, 29-69% of starch and 1-3% of ascorbic acid. The invention further discloses a method for preparing the decomposition deodorant, wherein the method comprises the steps of mixing the raw materials in a dark, sterile and dry environment and then directly carrying out vacuum and dark preservation. The decomposition deodorant has the advantages that dirty organic substances in the portable toilet can be rapidly and thoroughly decomposed into non-toxic and harmless micromolecular substances, and meanwhile, odors are removed from the portable toilet.

The invention discloses a method and a device for removing odorous gas. The odorous gas passes through a compound filter material and is decomposed into purified gas through porous material adsorption and ferrate oxidation for discharge, wherein the compound filter material is prepared by compounding a ferrate-loaded porous material and a blank porous material according to a ratio of 1:1. The method for preparing the ferrate-loaded porous material comprises the following steps of: 1) dissolving ferrate in aqueous solution of KOH with the concentration of 15M to prepare saturated solution of ferrate; 2) soaking a granular porous material with the granularity of 300 to 500 meshes in the solution, wherein the mass ratio of the ferrate to the porous material is 10-12:1; 3) slowly stirring for 2 hours, and standing for 10 to 24 hours to ensure that the porous material fully adsorbs the ferrate; and 4) filtering and naturally drying the solid. The compound filter material is arranged in a filtering tower to remove the odorous gas. The method and the device for removing the odorous gas have the advantages of simple device, no secondary pollution, simple and convenient maintenance and management, wide application prospect and the like.

The invention discloses a technological method for degrading feces from livestock and poultry by using complex microbial communities, and relates to the technical field of environment-friendly biological treatment. The technological method comprises the steps that 1, the complex communities are put on stacked materials formed through the combination of sawdust, straw, rice husk and other agricultural wastes for even mixing, wherein the moisture is controlled to 30-35%, and the standing time is 12-24 hours; 2, the well-stirred feces from livestock and poultry are sprayed on the stacked materials in the first step, the mixture is fully and uniformly stirred, the water content is adjusted to 55-65%, and stacking fermentation is conducted for 24-48 hours, wherein the complex microbial communities include fecal alkali-producing bacteria, nitrification and denitrification bacteria, autotrophy sulfuration and deodorization bacteria, low-temperature heterotrophic bacteria, actinomycetes, thermophilic bacteria, cellulose decomposition bacteria and bacillus subtilis. By means of the technological method, the hazards of foul gas, sewage and excrement in the feces from livestock and poultry to the environment are solved fundamentally, zero release and zero pollution are achieved, no bad smell, no waste residue and no waste water are discharged, meanwhile, the residual stacked materials can be prepared into organic fertilizers, and waste materials are turned into wealth and recycled.

The present invention provides a biological soil filter body deodorization equipment. It includes a blower fan, and is characterized by that said blower fan is connected with soil filter bed includes soil hard-layer of bottom portion, peripheral brick wall and active soil filter layer whose interior is filled up with air-permeable soil medium; between the soil hard layer and active soil filter layer a gas distribution layer is set, in the gas distribution layer the gas distribution tube with gas distribution holes is set, said gas distribution tube is connected with the above-mentioned humidifier; on the upper surface of active soil filter layer the vegetation can be planted.

Provided is a catalyst converter for purifying exhaust gas and a method for manufacturing the catalyst converter, in which a heater is disposed between inner / outer monoliths, to thereby heighten a heat transfer efficiency and induce a uniform catalytic reaction, and to thereby enhance a processing performance, and minimize an electric power consumption and miniaturize a device. The catalyst converter includes: a heater having a winding portion which is wound so as to have a space therein and a pair of electric power terminals; inner and outer monoliths which are inserted in the inner and outer circumferential portions of the heater winding portion wherein each of the inner and outer monoliths includes a number of hollow cells on the surfaces of which catalysts have been coated and which are formed in the lengthy direction; and a housing in which a support assembly is assembled.

The present invention discloses one kind of photothermal air purifier with honeycomb structure to eliminate organic pollutant, deodorize and sterilize air. It consists of casing, blower, flow regulating board, polygonal honeycomb-like photocatalytic reactor, ultraviolet lamp, compact heater and corresponding circuit. During operation, the photocatalyst supported by the photocatalytic reactor is activated by the ultraviolet light source and coupled with heat to produce strong oxidizing capacity oxidizing and decomposing the organic pollutant, bacteria, bad smell and harmful inorganic gas in air to reach the aim of purifying air. The honeycomb-like photocatalytic reactor has increased photocatalyst supporting area and raised light illumination. The coupling between the photocatalyst and heat catalytic technology raises the photocatalytic efficiency. The present invention has the advantages of high photocatalytic efficiency, high mineralizing efficiency, etc.

The present invention provides a method and system for carrying out atomization deodorization by adopting a plant extract solution. The method comprises the steps that a water inlet electromagnetic valve is opened; a dosing pump sucks and mixes the plant extract solution; the obtained mixed solution enters a water tank and then enters a pressure pump; the solution flowing out from the pressure pump outlet and compressed air enter a first-stage gas-liquid mixer together to be mixed so as to form a gas-liquid two-phase flow; the gas-liquid two-phase flow and compressed air enter a second-stage gas-liquid mixer together to be mixed so as to form a gas-liquid mixing flow; and the gas-liquid mixing flow enters a jet spraying device so as to achieve atomization deodorization. The system comprises an agent matching module, wherein the agent matching module is sequentially connected with a first-stage gas-liquid mixing module, a second-stage gas-liquid mixing module and the jet spraying device, and the three modules are connected with a PLC control cabinet for controlling the total system. With the method and the system of the present invention, the plant extraction solution is subjected to high atomization at a low pressure state so that the working condition adaptability and the deodorization effect of atomization equipment are improved; the equipment maintenance and operation workload are reduced, and the safety is improved.

The invention relates to a biological deodorization. It has solved the difficulty of biological method only being able to remove low degree odor with simple way. It goes like this: domesticating, inoculation, purification, enriched medium, hybrid to grow the deodorization biological sperm, then prepare fixed biochemical stuff, with the odor being filtered and deordorized. The feeding cycle for nutrient solution is 12h, inlet air flow is 0. 012-0. 1m3 / h, average air density being 0-800mg / m3, volume charge of H2S being 0-124. 8mgs / kg active carbon . h, volume charge of alkaline being 0-110mgN / kg active carbon . h, temperature controlled within 20-30deg.C, air hanging period within 20-150s. It has high efficiency in deodorization, simple in equipment and economical in running expenses.

The invention discloses an intelligent sewage odor comprehensive treatment device which comprises an odor collecting device, a frequency conversion fan, an electronic control system, an odor treatment device, a chemical reaction system, a discharge chimney and an adjusting valve. As the intelligent electronic control system is used in an odor treatment process, unit odor treatment equipment is adopted, so that an automatic production mode of unit assembly is realized in the odor treatment process, and therefore, the equipment mounting time is extremely shortened, and the odor treatment efficiency is improved. The intelligent sewage odor comprehensive treatment device disclosed by the invention can automatically selecting corresponding power and parameters of the odor treatment equipment according to odor components and concentration and has the functions of intelligent detection, automatic adjustment and optimization of operation, so that intelligent comprehensive treatment of sewage odor treatment is realized.

This invention can provide the apparatus for collecting smoke and dust with a deodorizing function which has an excellent capability of maintenance, an improved deodorizing and silencing effect.The apparatus is comprised of: a bulkhead having an opening and disposed in the housing to separate a space for deodorizing and filtering exhaust gas from a space for discharging exhaust gas,a vacuuming means for vacuuming the exhaust gas disposed in the space for discharging and communicated with the opening of the bulkhead,a filtering means for filtering the exhaust gas disposed in the space for deodorizing and filtering and communicated with the vacuuming means through the opening of the bulkhead, anda deodorizing means for deodorizing the exhaust gas concentrically disposed at the outer side of the filtering means.

The invention discloses a low-concentration viscose wastewater and waste gas treatment system and belongs to the technical field of waste gas treatment. aiming at solving the problems that a single treatment technique is poor in effect, carbon disulfide is liable to combust and explode, and the like since a low-concentration waste gas which is generated in a viscose wastewater treatment process iscomplex in constitution (within carbon disulfide, hydrogen sulfide, volatile organic compounds and the like), the invention provides a novel treatment system which consists of plasma deodorization equipment and biological deodorization equipment in serial connection. A waste gas is fed into the plasma deodorization equipment, and a plasma generation chamber and a plasma reaction chamber are indirectly connected through a butt joint component, so that the problem that explosion is caused as a plasma pipeline group is in direct contact with flammable and combustible waste gases such as the carbon disulfide can be avoided; meanwhile, pollutants such as the carbon disulfide can be rapidly degraded and are fed into a biological deodorization system for secondary removal, so that the pollutantremoval efficiency, the removal rate and the operation security can be greatly improved; and in addition, the system has the advantages of being low in investment cost, free of secondary pollution, and the like.

The invention discloses a smell removal liquid and a preparation method thereof. The smell removal liquid comprises the following components by weight fraction: 70-80% of deionized water, 1-2% of artificial food colourant, 2-3% of emulsifier and 15-26% of plant extract. The method comprises the following steps: adding the deionized water in an enclosing reaction vessel, adding the plant extract, controlling the temperature of the reaction vessel being 20-28 DEG C, stirring for 2-3 hours, adding the artificial food colourant and the emulsifier in order, continuously stirring for 2-3 hours, and standing for 20 minutes and filtering to obtain the product. The smell removal liquid has the beneficial effects that the smell removal liquid is environmentally friendly and nontoxic, the smell removal efficiency can reach as high as 80-99.9%. The smell removal liquid is capable of removing a plurality of organic or inorganic exhaust gas, such as ketones, phenols, aldehydes, alcohols gas and hydrogen sulfide, fluoride, nitrogen oxide and trimethylamine. In addition, the preparation process has the advantages of simple and controllable process as well as low cost.

The invention discloses a deodorization method for sewage treatment and a treatment device thereof, and belongs to the technical field of sewage treatment. The sewage treatment deodorization device comprises a treatment box, a dosing box and an absorption box, the dosing box is fixedly connected with the treatment box through a material guide pipe, a dosing pipe is arranged at the upper end of thedosing box, an exhaust pipe is arranged at the upper end of the absorption box, and the absorption box is arranged on the side wall of the treatment box. A water inlet pipe is fixedly connected to the upper end of the treatment box; and a water outlet pipe is arranged at the lower end of the treatment box. According to the sewage treatment device, an impeller, a pouring rotating shaft and a material guide groove are arranged, so that the feeding amount is automatically controlled according to the water flow conveniently, the impeller, a gear disc and a stirring rod are arranged, sewage and adeodorization agent in the treatment box are fully stirred conveniently, the deodorization efficiency and effect are improved, and gas generated by reaction is discharged into the absorption box conveniently through a gas guide pipe; and the impeller, a cam, a push rod and a piston are arranged, so that absorption liquid in a liquid feeding cabin is conveniently guided into the absorption box.

The invention provides a method and a device for deodorizing a light oil product through dissolved oxygen. The method comprises the following steps of: mixing the light oil product and air in a mixer, and then adding the light oil product into a dissolved oxygen container, wherein excess air is exhausted through an air-liquid interface control system in the dissolved oxygen container; adding the light oil product into a fixed bed reactor, and contacting the light oil product with a fixed bed oxidation catalyst; collecting the fixed bed oxidation catalyst subjected to a deodorizing reaction. According to the method and the device, on one hand, the pressure of a reaction system can be well kept in a balanced state to enable liquid-stage fluid to uniformly flow in the reactor, and on the other hand, by the reaction of mercaptan and the dissolved oxygen in the light oil product in a homogeneous state, the deodorizing efficiency can be effectively improved, and an unnecessary oxidization side reaction is avoided or slowed, so that phenomena of color deepening and colloid over-generation caused by over-oxidization of the oil product are avoided, the service life of the catalyst is prolonged, the processing loss is reduced, and the yield of the light oil product is improved.

A combined treatment technology for biochemical odors comprises steps as follows: (1) biological deodorization: malodorous gases pass through biological deodorization equipment containing combined filler, microorganisms are attached to the inert filler, the temperature is kept at 16-30 DEG C, and biological decomposition is performed; (2) catalytic oxidation: the gases in the Step (1) are introduced into a catalytic oxidation spray tower, and a strong oxidant is supplemented to spray water continuously; (3) adsorption: wastewater after catalytic oxidation passes through a corrugated board water-removal layer and then enters an activated carbon adsorption tower for adsorption; (4) exhausting: waste gases after adsorption enter an exhausting chimney for exhausting. According to the technology, the deodorization efficiency is up to 99%, the ability for treating various malodorous waste gases is high, and multiple industrial waste gases can be treated simultaneously.