40results about How to "Reduce SS content" patented technology

The invention discloses a biological purification method for freshwater aquaculture water environment, which uses more than two of a microbial flocculating agent, a composite microbial preparation, a composite enzyme preparation or a biological floating bed to purify the freshwater aquaculture water environment. The biological flocculating agent is adopted to reduce contents of COD, BOD and SS in culture water and promote the growth of beneficial microbes; the enzymolysis of the composite enzyme preparation is utilized to decompose residual nutrients in the water into micro-molecules; the degradation effect of the composite microbial preparation is utilized to finally transform the micro-molecular nutrients into nitrogen released to air, and aged microbial thalli are removed through the microbial flocculating agent; and the artificial floating bed is utilized to absorb and adsorb nitrogen, phosphorous and organic matters in the culture water. Contents of ammonia nitrogen and nitrite nitrogen in the culture water can be reduced and there are no adverse influences on fish through above processing. The method which has the advantages of simple operation, low cost and substantial effect has obvious economic benefits and social benefits.

The invention discloses a sewage treatment system, which comprises a selection area, an anaerobic tank, an anoxic tank, an aerobic tank, a precipitation adjusting tank and an aerobic membrane tank, which are connected in turn through an effluent weir, wherein the precipitation adjusting tank is arranged between the aerobic tank and the aerobic membrane tank. The sewage treatment system is technically characterized in that the system has two-stage oxidation and the precipitation adjusting tank is arranged between the aerobic tank and the aerobic membrane tank, so the membrane loss is greatly reduced, the membrane flux of the membrane tank is ensured, and the impact resistant loading capacity of the system is obviously improved while reducing the running cost; basically the consumption of the membrane is saved, and meanwhile the treatment efficiency of AA0 is improved; and composition units of the process device are built integrally in sequence and the units share the same wall, so the design can save investment and save space, and meanwhile the running cost can also be saved due to interconnection of the units. The integral device has low investment and running costs and ultrahigh yield water quality, and is particularly suitable for the requirements of water-lacking large and medium cities for recycling sewage.

The invention discloses a recycling treatment system of high-salinity high-organic-matter chemical wastewater. The recycling treatment system comprises an electrocatalytic oxidation device, a halotolerant bacteria biochemical system, an MBR aerobic device, an electroosmosis unit, an ultrafilter and an RO unit, the halotolerant bacteria biochemical system comprises a halotolerant bacteria anaerobic device, a halotolerant bacteria aerobic device and a halotolerant biological aerated filter. The invention further discloses a treatment method of the high-salinity high-organic-matter chemical wastewater. By the recycling treatment system and the treatment method, the problem of recycling treatment of the high-salinity high-organic-matter chemical wastewater is solved effectively, recycling rate of water and salt is high, no wastewater is discharged basically, no solid waste is generated, generated water is high in quality, generated salt is high in purity, and water resources and salt in the high-salinity high-organic-matter chemical wastewater are recycled to greatest extent; zero discharging of wastewater in the process of enterprise production is realized, and the recycling treatment system and the treatment method have important environment benefit.

The invention belongs to the field of treatment of wastewater in food enterprises and in particular relates to a treating agent of wastewater in monosodium glutamate production enterprises and also relates to a monosodium glutamate production wastewater treatment method. The monosodium glutamate production wastewater treating agent comprises the following components in parts by weight: a physical water purifying agent, a compound microbial agent and an enzymic preparation, wherein the physical water purifying agent comprises 1-5 parts of activated carbon, 1-5 parts of organically modified zeolite and 1-5 parts of polyacrylamide; the compound microbial agent comprises 0.02-0.1 part of konjac acidovorax powder, 0.05-0.2 part of arthrobacter powder, 0.05-0.2 part of bacillus laterosporus powder and 0.04-0.2 part of moraxella powder; and the enzymic preparation comprises 0.05-0.1 part of xylanase, 0.04-0.09 part of glutaminase and 0.01-0.06 part of acid proteinase. By adopting the wastewater treating agent and the wastewater treatment method, complex large-particle organic matters difficult to degrade are hydrolyzed into simple organic matters easy to degrade, thus greatly reducing the content of SS (suspended substance) in the wastewater, and the treated wastewater has high BOD (biochemical oxygen demand) and COD (chemical oxygen demand) removal rates and reaches the specified discharge standard.

The invention discloses a biological purification method of landscape water. According to the method, a microbial flocculant, a compound enzyme preparation and a compound microorganism preparation which are evenly mixed are added into the landscape water, the microbial flocculant is used for flocculating suspended solids in the landscape water, the compound enzyme preparation is used for enzymolysis of water nutrients in the landscape water, the compound microorganism preparation is used for degrading small molecule nutrients in the landscape water, suspended solids, ammonia nitrogen and total phosphorus in the landscape water are degraded to achieve the purification treatment of the landscape water. Three biological preparations are combined, a synergy function is provided, a multi-level effect is formed, water quality is improved remarkably, and the method has no toxic and side effects on landscape fish. The biological purification method is simple to operate, low in cost and remarkable in effect, and has obvious economical and social benefits.

A tannery wastewater pretreatment method comprises the following steps: (1), precipitating sulfur-containing wastewater, discharging supernatant after precipitation and dewatering sludge after precipitation; (2), carrying out chromium removal treatment on chromium-containing wastewater through an alkali precipitation method and discharging supernatant after precipitation; (3), carrying out precipitation treatment on other wastewater, discharging supernatant after precipitation and mixing sludge with comprehensive wastewater sludge generated in the step (4); (4), enabling effluents discharged in the step (1), (2) and (3) to enter an adjusting tank to be mixed into comprehensive wastewater, lifting the mixed wastewater to a coagulating precipitation tank after adjusting, and carrying out biochemical treatment on supernatant after precipitation. According to the invention, the SS pollution load in the pre-treated comprehensive wastewater is reduced by 95% or above, the COD pollution load in the pre-treated comprehensive wastewater is reduced by 70% or above, the total nitrogen load in the pre-treated comprehensive wastewater is reduced by 30% or above, the content of toxic and harmful substances such as sulfide and total chromium is effectively controlled, and the requirement for stable operation of subsequent biological treatment is met. The treatment effect is stable and the stable operation of a biological system is facilitated.

The present invention belongs to the field of wastewater treatment of food businesses, in particular relates to a pastry factory wastewater treatment agent, and also relates to a pastry factory production wastewater treatment method. The pastry factory wastewater treatment agent comprises a physical purifying agent, complex microbial agents and an enzyme preparation, the physical purifying agent comprises the following components by weight: 1-5 parts of activated carbon, 1-5 parts of organically modified zeolite and 1-5 parts of polyacrylamide; the complex microbial agents comprise 0.02-0.1 part of saccharomycetes powder, 0.05-0.2 part of flocculating bacteria powder, 0.05-0.2 part of bacillus megatherium powder and 0.04-0.2 part of chryseobacterium powder; the enzyme preparation comprises 0.05-0.1 part of xylanase, 0.04-0.09 part of glucose oxidase and 0.01-0.06 part of amylase. According to the pastry factory production wastewater treatment method, wastewater treatment agent wastewater treatment method, the complex, large particle and difficult-to-degrade organic matters are hydrolyzed into easily-degradable simple organic matters, wastewater SS content is greatly reduced, and the treated wastewater has BOD and COD removal efficiency, and reaches prescribed emission standards.

The invention belongs to the field of food enterprise wastewater treatment, particularly relates to a bean product production wastewater treating agent and further relates to a bean product production wastewater treating method. The bean product production wastewater treating agent is prepared from a physical water purifying agent, a compound microbial agent and an enzymic preparation, wherein the physical water purifying agent is prepared from, by weight, 1-5 parts of activated carbon, 1-5 parts of organic modified zeolite and 1-5 parts of polyacrylamide, the compound microbial agent is prepared from, by weight, 0.02-0.1 part of flavobacterium powder, 0.05-0.2 part of rhodococcus powder, 0.05-0.2 part of bacillus licheniformis powder and 0.04-0.2 part of thiobacillus powder, and the enzymic preparation is prepared from, by weight, 0.05-0.1 part of cellulose, 0.04-0.09 part of pectinase and 0.01-0.06 part of bromelain. By means of the wastewater treating agent and the wastewater treating method, organic matter which is complex, difficult to degrade and large in particle is hydrolyzed into simple organic matter easy to degrade, the SS content in wastewater is greatly reduced, the BOD and COD removal rate of the treated wastewater is high, and the wastewater reaches the regulated emission standard.

The invention belongs to the field of food enterprise wastewater treatment and particularly relates to a hot-pickled mustard tuber production wastewater treating agent and a hot-pickled mustard tuber production wastewater treating method. The hot-pickled mustard tuber production wastewater treating agent is prepared from, by weight, a physical water purifying agent, a composite microbial agent and an enzymic preparation. The physical water purifying agent is prepared from, by weight, 1-5 parts of activated carbon, 1-5 parts of organic modified zeolite and 1-5 parts of polyacrylamide. The composite microbial agent is prepared from, by weight, 0.02-0.1 part of halophilic pseudomonas powder, 0.05-0.2 part of aspergillus flavus powder, 0.05-0.2 part of bacillus licheniformis powder and 0.04-0.2 part of paracoccus aminovorans powder. The enzymic preparation is prepared from, by weight, 0.05-0.1 part of cellulose, 0.04-0.09 part of pectinase and 0.01-0.06 part of thioesterase. By means of the wastewater treating agent and the wastewater treating method, organic matter which is complex, difficult to degrade and large in particle is hydrolyzed into simple organic matter easy to degrade, the SS content in wastewater is greatly reduced, the BOD and COD removal rate of the treated wastewater is high, and the wastewater reaches the regulated emission standard.

The invention discloses a method for efficiently treating plant protein wastewater, and belongs to the field of protein wastewater treatment. The method includes 'multistage pre-treatment, efficient anaerobic, anoxia and aerobic' combined technologies, so that efficient anaerobic treatment, stable running and recycling can be carried out on the plant protein wastewater. A 'multistage pre-treatment technology' mainly includes physiochemical per-treatment and biochemical pre-treatment; suspended particles in the plant protein wastewater can be efficiently intercepted by the aid of the physiochemical pre-treatment, and bean pulp resources in the plant protein wastewater can be recycled by the aid of the physiochemical pre-treatment; protein can be destructed by the aid of the biochemical pre-treatment, calcium ions and phosphate radicals can be intercepted by the aid of the biochemical pre-treatment, and anaerobic disturbance influence factors can be eliminated; the pH (potential of hydrogen) and the temperature of inlet water can be reasonably controlled by efficient anaerobic units, accordingly, anaerobic systems can assuredly efficiently and stably run, and the volume load of the anaerobic systems can reach 25 kg/(m<3>.d). Compared with the traditional processes and technologies for plant protein wastewater, the technical method has the advantages of high efficiency, stability, high resource utilization rate and the like. Besides, the plant protein wastewater can be efficiently treated by the aid of the method.

The invention belongs to the field of food enterprise waste water treatment, particularly relates to a treating agent for candy production enterprise waste water and relates to a treating method for the candy production waste water. The treating agent for the candy production waste water is prepared from, by weight, a physical water-purifying agent including 1-5 parts of active carbon, 1-5 parts of organic modified zeolite and 1-5 parts of polyacrylamide, a complex microbial agent including 0.02-0.1 part of pseudomonas aeruginosa powder, 0.05-0.2 part of arthrobacter powder, 0.05-0.2 part of bacillus laterosporus powder and 0.04-0.2 part of thiobacillus powder and an enzyme preparation including 0.05-0.1 part of xylanase, 0.04-0.09 part of glucose oxidase and 0.01-0.06 part of papain. By the adoption of the treating agent and method for the waste water, organic matter which is complex, difficult to degrade and large in particle is hydrolyzed to be simple organic matter easy to degrade, in this way, the SS content in the waste water is greatly reduced, the removal rate of BOD and COD in the waste water after treatment is high, and the waste water meets specified emission standards.

The invention provides a technology and a system for treating petrochemical wastewater. The technology is characterized in that a treatment method combining primary treatment, secondary treatment, biochemical treatment and deep treatment is adopted, the previous petroleum removal effect is enhanced, and the deep treatment type novel technology combination of 'ozone contact and aeration biologicalfilter tank' is additionally adopted, so that the contents of COD (chemical oxygen demand) and petroleum in the wastewater can be reduced, and the removal effect of petroleum and COD is enhanced; mostof NH3-N, TN, sulfide, volatile phenol and SS (suspended solids) can be removed, the drainage requirement is met, the petrochemical wastewater is effectively treated, and the drained water can stablyreach the standard. The treatment system comprises an adjusting petroleum removal tank, a loading and coagulation petroleum removal device, a coagulation and flocculation air floatation tank, an A/O(anoxic/oxic) biochemical tank, a secondary precipitation tank, a front ozone contact tank, an aeration biological filter tank, a clean water tank and the like. The system has the advantages that according to the conditions, the system can be newly built, or be modified on the original treatment system; the running is stable, the construction cost is effectively reduced, and the running cost is reduced.

The invention belongs to the field of wastewater treatment for food enterprises and specifically relates to a pickles production wastewater treatment agent and also relates to a pickles production wastewater treatment method. The pickles production wastewater treatment agent comprises the following ingredients (by weight): a physical water purifier including 1-5 parts of active carbon, 1-5 parts of organic modified zeolite and 1-5 parts of polyacrylamide; complex microbial inocula including 0.02-0.1 part of Paracoccus denitrificans powder, 0.05-0.2 part of rhodococcus powder, 0.05-0.2 part of bacillus megatherium powder and 0.04-0.2 part of pseudomonas-stutzeri powder; and an enzymic preparation including 0.05-0.1 part of lignan hydroxylase, 0.04-0.09 part of pectase and 0.01-0.06 part of papain. By the use of the wastewater treatment agent and the wastewater treatment method, complex, hardly-degradable and large-grained organic matters are hydrolyzed into simple easily-degradable organic matters, content of SS in wastewater is greatly reduced, BOD and COD removal rate of wastewater after treatment is high, and specified emission standard is reached.

The invention discloses a sewage treatment unit capable of effectively reducing COD suspended solids (SS). The sewage treatment unit comprises a filter, a hydraulic workstation, an electric cabinet, a sewage pool, a sludge sump and a clear liquid pool, wherein a thrust plate and a press plate are arranged on the filter, a filter plate and a filtration fabric are arranged between the thrust plate and the press plate; a hydraulic cylinder base is arranged on the filter, and a hydraulic cylinder is arranged on the hydraulic cylinder base; a cross beam is arranged on the filter, and a drawing plate unit is arranged on the cross beam; a first three-way pipe is arranged between a liquid inlet and the sewage pool, the first three-way pipe is connected with the sludge sump, a sludge discharge valve is arranged between the first three-way pipe and the sludge sump, a second three-way pipe is arranged on a water outlet channel, one end of the second three-way pipe is connected with a backwashing pump, the other end of the second three-way pipe is connected with the clear liquid pool, and a water outlet valve is arranged between the second three-way pipe and the clear liquid pool. The sewage treatment unit has a function of continuously filtering, has a filtering function on sewage in combination with the filter, is large in filter plate filtering area, has an effect of increasing water discharge capacity and can be used for effectively reducing the content of COD suspended solids (SS).

The invention belongs to the technical field of biological fermentation, and discloses an anaerobic digestion method for improving biogas production efficiency, which comprises the following steps: S1, carrying out pretreatment of an organic material: crushing the organic material, stirring, carrying out biochemical pretreatment, and heating for preheating; S2, carrying out anaerobic fermentation on the organic material; S3, utilizing biogas and treating fermentation residues: conveying the biogas to a biogas utilization unit for utilization, separating the fermentation residues to obtain biogas residues and biogas slurry, decomposing and converting the biogas slurry again to generate biogas, liquid sludge and penetrating fluid, and using the biogas residues and the penetrating fluid as biogas manure; S4, carrying out backflow and utilization of liquid sludge: enabling the liquid sludge obtained in the step S3 to flow back into an anaerobic digester for anaerobic fermentation again, and repeating the steps S3 and S4, so that the organic material is fully decomposed and converted; the invention solves the problems of incomplete digestion treatment of organic materials, low conversion efficiency and no independent treatment of sulfur components in biogas in the prior art, and is suitable for biogas production by anaerobic digestion of agricultural rural waste organic materials.

The invention belongs to the field of food enterprises' wastewater treatment, particularly relates to a vinegar production enterprises' wastewater treating agent and further relates to a vinegar production wastewater treatment method. The vinegar production wastewater treating agent is prepared from, by weight, a physical water purifying agent including 1-5 parts of activated carbon, 1-5 parts of organic modified zeolite and 1-5 parts of polyacrylamide, a compound microbial agent including 0.02-0.1 part of konjac acidovorax powder, 0.05-0.2 part of sulfate reducing bacterium powder, 0.05-0.2 part of lysine bacillus powder and 0.04-0.2 part of Moraxella powder, and an enzyme preparation including 0.05-0.1 part of xylanase, 0.04-0.09 part of Streptomyces protease and 0.01-0.06 part of acid protease. By the adoption of the wastewater treating agent and the wastewater treatment method, complex large-particle organic matter difficult to degrade is hydrolyzed into simple organic matter easy to degrade, the SS content in wastewater is greatly reduced, the BOD and COD removal rate of the treated wastewater is high, and the prescribed discharge standards are reached.

The invention provides a banknote printing gravure ink wastewater treatment process, and belongs to the field of hazardous wastewater treatment. The wastewater treatment process comprises the following steps: a raw material storage and conveying process, a wastewater pretreatment process, a pretreated wastewater transiting process, a solid-liquid separation process, a wastewater final post-treatment process and a post-hazardous wastewater treatment process. The ink wastewater solid residues treated by the method basically do not contain water, and are treated as hazardous wastes, the volume and mass are greatly reduced, the treatment cost is reduced therefore, leakage during the transportation process is prevented, the environment is protected, and the safety is guaranteed. The SS contentof the treated filtrate is low, various indexes are reduced, and the processed wastewater can be discharged into a factory water treatment master station. The separated liquid meets the discharge requirements, added calcium chloride reduces the content of chloride ions in water, the corrosion to equipment is reduced, the environment is not polluted, the pH value of the treated liquid is reduced, the COD is reduced, and the subsequent water treatment cost is also reduced.

The invention discloses an electroflotation/ultraviolet rainwater purification device and a use method thereof, and belongs to the field of ecological environment. A liquid level detector, an electrode plate, an ultraviolet lamp tube, a slag suction machine and a water outlet are arranged in the device, rainwater enters the device through a lifting pump, and a flow detector detects flow change in a pipe and controls the water outlet to be closed. The rainwater submerges the liquid level detector, the electrode plate, the ultraviolet lamp tube and the slag suction machine are started after being electrified. The electrode plate electrolyzes and oxidizes rainwater to generate microbubbles capable of adsorbing and wrapping suspended matter particles in water, when floating to the water surface, the microbubbles are removed by the slag suction machine, the electrode plate can directly electrolyze and oxidize organic matter in the water, and meanwhile ultraviolet light can effectively kill pathogen microorganisms in the water body. When the flow detector does not detect the flow change, that is, no rainwater enters the device, the water outlet is controlled to be opened, and the rainwater in the device is completely drained. The device is simple in structure, rainwater purification can be completed without manual control, meanwhile, the sterilization and disinfection effects are achieved, and the device is suitable for various rainwater recycling ways.