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Method for treating solid wastes by culturing biological leachate by use of membrane bioreactor
ActiveCN104607443AIncrease the concentration of microorganismsAddress slow growthSolid waste disposalProcess efficiency improvementNutrientAeration rate
The invention relates to a method for treating solid wastes by culturing biological leachate by use of a membrane bioreactor, and belongs to the field of a solid waste resource treatment technology. The membrane bioreactor is applied to biological leachate culture and regeneration firstly and is used for the innocent and resource treatment of dangerous solid wastes. A group of membrane components is arranged in the bioreactor, and the metabolism and the growth of leaching bacterial strains are controlled through the adjustment of the aeration rate, the stirring speed, the concentration of nutrient substances and the like, when the concentration of the leaching bacterial strains is in a stable phase, water inlet and water outlet functions are started to enable the membrane bioreactor to be in a chemostat state, the leaching bacterial strains can be enriched by the interception action of the membrane, and the yield of the biological leachate is increased. The method can be used for effectively solving the problems that the leaching bacterial strains grow slowly, the biomass is low, the leaching efficiency is low, the leaching period is long and the like, has the beneficial effects of simpleness, high safety, energy conservation and wide application range, can be operated conveniently and is suitable for the innocent and resource treatment of different solid wastes.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY
Sewage treating apparatus of point-division feed water multilevel biomembrane reactor
InactiveCN101172711AEasy to handleShort processTreatment with aerobic and anaerobic processesMultiple pointLower upper
The invention discloses a sewage treating device with a multiple water inlet point multi-grade bioflim reactor. N pieces of separating plates are vertically arranged inside a tank to divide the tank into N+1 reaction pools in series. The adjacent reaction pools are orderly communicated with the lower part to the upper part, wherein, the first N-1 grades are functioned with anaerobic and aerobic reaction alternately, every pool is provided with flexible assembled fillers; the N grad is the aerobic reaction area with flexible assembled filler, and the N+1 grad is the filtering and depositing area; a water inlet pipe is arranged at the top of the tank and is respectively communicated with the water inlet of the first N-1 grades, applying a water supply with multiple points; a water outlet pipe is led out of the upper part of the N+1 grade reaction pool; the bottom parts of the first N grade reaction pools are provided with an underwater aeration device, and the bottom part of the N+1 grade reaction pool is provided with a backwashing pipe. The bottom part of every pool is provided with a sludge discharge pipe. The treatment device has the advantages of great impact loading resistant ability, high treatment efficiency, low operation energy consumption, less left sludge, simple procedure, small land occupation, low investment and convenient operation.
Owner:CHONGQING UNIV
Cold rolling tempering lubricant waste water treatment device and treatment method thereof
ActiveCN101456646AImprove removal efficiencyIncrease the concentration of microorganismsFatty/oily/floating substances removal devicesWaste based fuelAnaerobic treatmentEmulsified oil
The invention aims to disclose a device and a method for processing wastewater of cold-rolled leveling liquid. Floating oil in the levelling liquid wastewater is removed through a barrate oil receiving device; the dissolved or emulsified oil is removed through a high-efficiency CAF air floating pool, thereby having little investment and low operating expenses and saving occupied area; the water coming out from the CAF air floating pool enters an anaerobic treatment unit and an MBR membrane biological reaction unit; the water firstly passes through the anaerobic treatment unit, and the anaerobic treatment unit is used as pretreatment of an aerobic treatment unit, thereby avoiding the temperature problem met by aerobic treatment in the prior process and problems that certain organism can not be degraded under the aerobic condition, has overhigh load and impacts load and ensuring that aerobic outlet water is stable and meets the standard; the concentration of organism in the water can be reduced below 100 mg / LCODcr; and the treated water quality reaches first level standard stipulated by Integrated Wastewater Discharge Standard of People's Republic of China (GB8978-1996), thereby realizing the aim of the invention.
Owner:MAIWANG INT BUSINESS SHANGHAI
Deep well aeration film bioreactor waste water treatment process and apparatus
ActiveCN101323482AImprove mass transfer efficiencyIncrease concentrationWater/sewage treatment bu osmosis/dialysisSustainable biological treatmentActivated sludgeHigh density
A deep-well aeration membrane biological reactor waste-water disposal process and a corresponding apparatus relate to the waste-water disposal technique field, aiming at solving the technical problems of further reducing occupied area and energy cost by the deep-well aeration waste-water disposal. The waste-water disposal apparatus comprises a deep well and a top trough; the top of the deep well is connected with the bottom of the top trough, and a liquid raising circulation system is arranged in the deep well. The apparatus is characterized in that the apparatus also comprises a membrane biological reactor connected with the top trough; a membrane element which is connected with a water outlet tube and is arranged on the upper-internal part of the membrane biological reactor; an aeration device which is connected with a fan and is arranged on the lower part of the membrane element; a sludge hopper is arranged on the lower (bottom) part of the membrane biological reactor; a sludge backflow pipe connected with the bottom of the top trough and a sludge-draining pipe connected with a sludge-removing device which are respectively arranged at the bottom of the sludge hopper and are controlled by valves respectively. The invention makes use of the suction of the circulation flow to the sludge backflow pipe to absorb the sludge to the deep well to be mixed with sewage. The invention is characterized in that the occupied area is small; the activated sludge has high density; the rest sludge is less and the energy cost is low.
Owner:SHANGHAI GUANGLIAN ENVIRONMENTAL & GEOTECHNICAL ENG CO LTD
Wastewater treatment equipment and method for ship
ActiveCN101905924AGuaranteed reliabilityGuaranteed stabilityTreatment with aerobic and anaerobic processesWater/sewage treatment bu osmosis/dialysisAfter treatmentSewage
The invention provides a novel wastewater treatment device, aiming to solve the problem of domestic wastewater treatment of the traditional ship and aiming to the special requirements on the ship. The device integrates coarse filtration, anaerobic biological treatment, fine filtration and aerobic biological treatment into a whole and adopts an embedded membrane filtering technology. A depositing chamber is internally provided with a coarse filter, and the coarse filter can automatically carry out ventilation washing according to the preset time to prevent blockage without artificial cleaning. Water is output through coarse filtration and enters a baffling chamber, an organic matter is further precipitated and degraded, output water thereof flows into a regulation chamber, and water inflow and uneven water quantity are automatically regulated through the regulation chamber. Output water of the regulation chamber is pumped into an external fine filter through a pump, filtered wastewater enters a membrane bioreactor, and the wastewater which accords with a drainage standard is drained after treatment. The wastewater treatment equipment and the method for the ship ensure that wastewater treatment reaches a new national drainage standard; and the equipment satisfies the requirements for low energy consumption and easy maintenance and cleaning.
Owner:CHINESE ACAD OF AGRI MECHANIZATION SCI
Harbor chemical wastewater processing method
InactiveCN101508506AImprove oxygen transfer efficiencyIncrease concentrationFatty/oily/floating substances removal devicesTreatment with aerobic and anaerobic processesAutomatic controlOil separation
The invention discloses a treatment method for port chemicals wastewater. The method comprises the following steps: the oil separation-air floating treatment, the biological fluidized bed treatment, the anaerobic settling tank treatment and the ozone aeration biological filter integral device treatment. The port chemicals wastewater is retained for 1 to 3 hours in an oil separation tank; and the surface load of the oil separation tank is 0.8 to 1.5m / m.h. The hydraulic power is retained for 6 to 18 hours in a biological fluidized bed; and the gas-water ratio is 10-30:1. The hydraulic power is retained for 12 to 36 hours in an anaerobic settling tank. Then after the wastewater is retained for 1 to 2 hours in an intermediate regulation tank, 50 to 200 mg / L of ozone is added. After being oxidized by the ozone, the wastewater undergoes the biochemical treatment in the aeration biological filter; and the hydraulic power is retained for 6 to 12 hours in the aeration biological filter. The method realizes the miniaturization of equipment, reduces the floor space and energy consumption, and has stable treatment effect. The automatic control on the wastewater treatment process is easily realized and the personnel operation is simple, and the method has good industrialized application prospect.
Owner:SOUTH CHINA UNIV OF TECH
Integrated biological and ecological cooperative sewage treatment reactor
InactiveCN101633545AEasy to handleImprove effluent qualityTreatment with aerobic and anaerobic processesMultistage water/sewage treatmentDraining tubeSludge
The invention discloses an integrated biological and ecological cooperative sewage treatment reactor. The reactor comprises a biological treatment tank, an ecological treatment tank and a disinfection contact tank, wherein separation walls are vertically arranged in a biological treatment tank body and separate the tank body into a plurality of grids; a center grid is used as a blower chamber, and other grids are used as biological tanks provided with suspension stuffing, and the bottom of each tank is provided with a microporous aeration device and a sludge discharge pipe; the biological treatment tank and the ecological treatment tank are connected in series for operation and are separated by a vertically arranged separation wall into two grids; iron-rich stuffing is arranged and aquatic plants are planted in each grid which is also provided with a collector pipe connected with the disinfection contact tank; deflection and guiding separation walls are arranged in the disinfection contact tank to prolong the disinfection contact time; a drain pipe is arranged in a disinfection contact area; and the treated sewage is drained into water bodies nearby. The invention has the advantages of strong shockproof loading capacity, high treatment efficiency, low operation energy consumption, small remaining sludge amount, short process, small floor area, little investment, convenient management, and the like.
Owner:CHONGQING UNIV
Railway wash water recovery and utilization method
InactiveCN1765778AImprove biodegradabilityImprove operational efficiencyTreatment with anaerobic digestion processesMultistage water/sewage treatmentChemistryCarbon dioxide
The recycle method for railway washing sewage comprises steps shown below: (1) removing the seston in sewage by grid screen to flow into anaerobic hydrolysis pond; (2) acidifying the LAS in sewage and organic into micromolecular organic by anaerobic active sludge; (3) entering membrane bioreactor, oxidizing said organic into carbon dioxide and water totally by aerobic active sludge, and recycling the residual clear water with material less than intercept diameter. This method uses MBR as main body and has high efficiency with low cost.
Owner:SHANGHAI JIAO TONG UNIV +1
Method used for realizing whole-course autotrophic nitrogen removing via anaerobic ammonium oxidation immobilization
ActiveCN104829044ANot easy to cause lossGuaranteed uptimeTreatment with anaerobic digestion processesEnergy based wastewater treatmentPolyvinyl alcoholSludge
The invention discloses a method used for realizing whole-course autotrophic nitrogen removing via anaerobic ammonium oxidation immobilization, and belongs to the field of sewage treatment. According to the method, polyvinyl alcohol is mixed with sodium alginate for anaerobic ammonium oxidation cell immobilization, and prepared anaerobic ammonium oxidation gelled pills are applied to a whole-course autotrophic nitrogen removing system. A device comprises a raw water tank, a biological decarbonizing reactor, a middle water tank, and a whole-course autotrophic nitrogen removing reactor. According to the method, the anaerobic ammonium oxidation gelled pills obtained via imbedded immobilization and partial nitrification sludge are delivered into the whole-course autotrophic nitrogen removing reactor, problems of anaerobic ammonium oxidation bacteria in the whole-course autotrophic nitrogen removing system that loss is easily caused, and anaerobic ammonium oxidation sludge activity is easily influenced by dissolved oxygen, are solved; the anaerobic ammonium oxidation bacteria are intercepted in the whole-course autotrophic nitrogen removing system by the immobilized anaerobic ammonium oxidation gelled pills, dissolved oxygen transmission is blocked, inhibition of the anaerobic ammonium oxidation bacteria in the immobilized anaerobic ammonium oxidation gelled pills by dissolved oxygen is not easily caused, stability is increased; and whole-course autotrophic nitrogen removing is realized.
Owner:TIANJIN HUANCHUANG TECH DEV CO LTD
Method for enrichment culture of Anammox
InactiveCN107162183AFast enrichment cultureIncrease the concentration of microorganismsWater treatment compoundsWater contaminantsRetention timeSmall footprint
The present invention provides a method for enrichment culture of Anammox. According to the method, seven steps are performed to finally produce Anammox-rich active sludge, such that the MLSS in the anaerobic bioreactor is 20-35 g / L, and the sludge retention time in the anaerobic MBR membrane bioreactor (AnMBR) is up to 180-300 days, wherein a flow rate ratio of the anaerobic microorganism-rich liquid refluxing to the anaerobic bioreactor from the anaerobic MBR membrane bioreactor (AnMBR) to the effluent filtered by the MBR membrane bioreactor is 3:1. According to the present invention, with the method, no Anammox loss exists, the high-quality and stable living environment is provided for Anammox, Anammox is subjected to enrichment culture, and the anaerobic ammonium oxidation reaction starting time can be shortened to 6-8 months; and the method further has advantages of simple process, safety, stability, low treatment cost, small occupation area, short hydraulic retention time, and fast anaerobic ammonium oxidation reaction starting.
Owner:天津中冀源环保科技有限公司
Continuous enlarging cultivation device and method for mineral-bioleaching microorganisms
ActiveCN107881081ACompact structureImprove cultivation efficiencyBioreactor/fermenter combinationsBiological substance pretreatmentsHigh concentrationMicroorganism
The invention discloses a continuous enlarging cultivation device for mineral-bioleaching microorganisms. The cultivation device comprises a cylinder which is formed by sequentially connecting an upper cylinder body, a middle cylinder body and a lower cylinder body, wherein the upper cylinder body can collect feed liquid which is discharged due to overflowing, the middle cylinder body can continuously cultivate the microorganisms in an enlarged mode, and the lower cylinder body can collect discharged precipitates. A detachable multi-layer filler assembly is arranged in the middle cylinder body, the multi-layer filler assembly is composed of a multi-layer filler box and filler which is arranged in the filler box, a heater, a nutrient solution distributing plate and an aeration device are arranged below the multi-layer filler assembly, and the aeration device is arranged below the nutrient solution distributing plate. The cultivation device is simple in design, continuous cultivation canbe achieved, the concentration of the microorganisms in a mature bacteria solution can be improved, and while continuous production of the high-concentration bacteria solution is maintained, the problem about the loss of strains in a reactor is effectively eased. The cultivation efficiency of the mineral-bioleaching microorganisms is improved, and the device has the advantages of being safe, efficient, low in space occupation, low in power consumption, simple and easy in operation and capable of achieving combined cultivation of a plurality of cultivation devices.
Owner:CENT SOUTH UNIV
Amino benzene analog waste water biological treatment method
InactiveCN1769206AHigh mechanical strengthPolymers have the following advantages: (1) mechanically strong mechanical strengthWater contaminantsSustainable biological treatmentBenzeneProcess conditions
The invention discloses a method for strengthening amino benzenes production wastewater SBR biological treatment with synthesized macroporous high-molecular polymer as immobilization microbe. For the drawback of the prior microbe carrier, the invention provides a kind of synthesized high-molecular polymer as immobilization microbe, and applies it to strength amino benzenes production wastewater SBR biological treatment. Compared with prior SBR technique, when microbe carrier used is 2-10% of active volume of the reactor, and the technique condition such as aeration volume, reaction time and temperature equals, with the method, the clearance of amino benzenes materials improves by 35-60% and the concentration of ammonia nitrogen in water outlet decreases by 5-15mg / L. The invention can be applied for modifying the prior wastewater treatment device, or building new wastewater treatment device, having good economic profit and environmental benefit.
Owner:NANJING UNIV
A2O-D2 synergistic nitrogen and phosphorus removal technology and device
PendingCN108675575AIncrease microbial biomassReduces the effects of anaerobic/hypoxicSludge treatment by de-watering/drying/thickeningWater contaminantsNitrogenMunicipal sewage
The invention discloses an A2O-D2 synergistic nitrogen and phosphorus removal technology and device. The device comprises an anaerobic pool, an anoxic pool, and an aerobic pool which are successivelyconnected. The technology comprises the following steps: after performing anaerobic, anoxic and aerobic treatments on municipal sewage, obtaining aerobiotic effluent; enabling a deoxidation pool to beembedded in the aerobic pool, and dividing the water outlet end of the aerobic pool to two parts, wherein one part is refluxed to the anoxic pool after entering the deoxidation pool for deoxidation,and the other part is directly flowed to a secondary sedimentation pool, and a volume ratio of the two parts is (2-4):1; and enabling the tail end of the secondary sedimentation pool to be connected to a sludge thickening pool, enabling concentrated sludge to be refluxed to the anoxic pool, and enabling supernatant liquid to be refluxed to the deoxidation pool. The technology is capable of, on thebasis of a current A2O technology, further improving the nitrogen and phosphorus removal effect of the secondary treatment, reducing the sewage treatment investment and the operating cost, providingan A2O-D2 synergistic nitrogen and phosphorus removal technology flow and technological design key points and design parameters thereof, and providing a design of a sewage treatment plant and a solution scheme of upgrading and reconstruction.
Owner:BEIJING GENERAL MUNICIPAL ENG DESIGN & RES INST
Spiral flow pushing type domestic sewage purification device
InactiveCN104944579AShort stayReduce flow dead angleTreatment with anaerobic digestion processesTreatment with aerobic and anaerobic processesSewageMechanical engineering
Owner:BIOGAS SCI RES INST MIN OF AGRI
Methane dry fermentation compound bacteria
InactiveCN102533609BHigh yieldEnergy optimizationBacteriaMicroorganism based processesCelluloseMicroorganism
Owner:BIOGAS SCI RES INST MIN OF AGRI
Combined type biological rotating disc sewage treatment device
InactiveCN104529097AIncrease the concentration of microorganismsLow microbial concentrationWater/sewage treatment by irradiationMultistage water/sewage treatmentOxygen utilization rateSewage
The invention relates to a combined type biological rotating disc sewage treatment device, and belongs to the field of biological sewage treatment devices. The combined type biological rotating disc sewage treatment device comprises a sewage pool, a settling pond, a water inlet tube, a biological rotating disc and a sterilizer, wherein the water inlet tube is arranged on one side of the sewage pool; biological zones are arranged inside the sewage pool; the biological rotating disc is mounted above the biological zones; the settling pond is arranged on the other side of the sewage pool; a dosing tank is arranged between the settling pond and the sewage pool. As the biological zones are combined with the biological rotating disc and are longitudinally distributed inside one pool body, relatively high microorganism concentration inside the sewage pool is maintained, the volumetric load is greatly increased, the combined type biological rotating disc sewage treatment device is relatively efficient and stable, the problems that a conventional biological rotating disc reactor is low in organic load, poor in treatment effect, poor in denitrification effect, low in oxygen utilization rate and poor in dephosphorization effect. Compared with a conventional biological zone biological contact oxidation method, the combined type biological rotating disc sewage treatment device disclosed by the invention needs aeration oxygen supply, and the operation cost is greatly reduced due to a rotation oxygen supply mode of rotating disc pieces of the treatment device.
Owner:YANGTZE UNIVERSITY +1
Pressure pipe type sewage treatment reactor
InactiveCN101973630AReduce outputReduce generationTreatment with aerobic and anaerobic processesExhaust valveGrating
The patent refers to the field of 'treatment of water, waste water, sewage, or sludge'. The invention discloses a negative pressure oxygenated pressure pipe type sewage treatment reactor, composed of two parts of negative pressure oxygenation and pressure pipe type reaction zone. Reactor water inflow is pressurized by a water pump firstly, and negative pressure oxygenation is carried out to carry massive oxygen into the pressure pipe type reaction zone. The reaction zone is composed of a plurality of pipe sections which are horizontally arranged, suspension filler is arranged in the interior, and a grating is arranged at the middle for separation. Meanwhile the water inlet pipe at the front end of pipeline is provided with a pressure regulating valve, so as to regulate and control pressure in the pipe, the top is provided with a vent valve, a safety valve and a filler feeding hole, the bottom is provided with a discharge pipe, the terminal is provided with a drain pipe, and the treated sewage is discharged to nearby water body. The treatment reactor integrates sewage conveying and treatment functions into a whole and has the advantages of good sanitary condition, strong impact load resistance, high treatment efficiency, low operating energy consumption, less residual sludge and simple process.
Owner:CHONGQING UNIV
Swage disposal system for ship and disposal method of swage disposal system
ActiveCN105541010AMeet safety requirementsAchieve recyclingFatty/oily/floating substances removal devicesWater/sewage treatment by irradiationBuffer tankWater flow
The invention discloses a swage disposal system for a ship and a disposal method of the swage disposal system. The sewage disposal system for the ship comprises an oil water separator, a precise filter, an ultraviolet sterilizing device, a resin adsorption system, an MBR membrane bioreactor, a liquid buffer tank and a membrane separator. The disposal method for the swage disposal system for the ship comprises the following steps: (1) sewage flows into the oil water separator; (2) the sewage enters the precise filter from the oil water separator to be filtered; (3) water flowing out of the precise filter enters the ultraviolet sterilizing device; (4) water flowing out of the ultraviolet sterilizing device enters the MBR membrane bioreactor; (5) water flowing out of the MBR membrane bioreactor enters the liquid buffer tank; (6) water flowing out of the liquid buffer tank flows to the membrane separator; (7) water flowing out of the membrane separator enters the resin adsorption system. The sewage disposal system is simple in structure and good in purifying effect.
Owner:JIANGSU MARITIME INST
Bacteria-immobilized hollow fiber polysulfone film for degradation of high concentration tetrachlorphenoxide, and preparation method thereof
ActiveCN102728246AIncrease the concentration of microorganismsProtect microorganismsSemi-permeable membranesWater contaminantsActivated carbonHigh concentration
The invention relates to a bacteria-immobilized hollow fiber polysulfone film for degradation of high concentration tetrachlorphenoxide, and a preparation method thereof. The film has an asymmetric three-layer structure, and is divided into an outer surface layer, a middle support layer and an inner surface later from the outer to the inner, wherein active carbon particles are uniformly distributed in each layer, the particle size is less than or equal to 10 mum, the specific surface area is 1104 m<2> / g, the dead volume is 0.92 cm<3> / g, the continuous phase of the film is transparent bisphenol A type polysulfone, the molecular weight is 100000-116500, and Pseudomonas aeruginosa is fixed in the surface of the film and the middle layer. After microbial immobilization is performed, the bacteria provide increased tolerance limitation for the high concentration toxic substrates so as to continuously grow. The degradation of the high concentration matrix by the immobilized bacteria mainly depends on protective effects on the bacteria by the hollow fiber film, such that the bacteria can grow so as to degrade the matrix.
Owner:HOHAI UNIV
Magnetic glass particles for use in biogas plants, fermentation and separation processes
InactiveUS20130224823A1Promote adequate mobilityEasy to separateGlass shaping apparatusOn/in inorganic carrierActive componentGlass particle
A method for treating an organic and / or inorganic substrate utilizing a granular material made of a solid foam as support for an active component, for example a biocatalyst such as a microorganism or an enzyme. The solid foam has a continuous phase in which magnetizable particles are embedded, such that the support with the biologically active component immobilized thereon can be separated from a mixture with a magnetic separation device.
Owner:DENNERT PORAVER
Method for treating recycled livestock and poultry breeding wastewater by aid of forward osmosis membrane bioreactors
InactiveCN105776519AGood removal effectImprove separation efficiencyWater contaminantsTreatment with anaerobic digestion processesActivated sludgeChemical oxygen demand
The invention discloses a method for treating recycled livestock and poultry breeding wastewater by the aid of forward osmosis membrane bioreactors. The method includes steps of arranging the livestock and poultry breeding wastewater in the bioreactors and carrying out biodegradation reaction under the condition that the concentration of activated sludge is 3000-7000 mg / L; separating the sludge from water in biologically treated raw material solution by the aid of forward osmosis membrane assemblies; transforming the raw material solution into clear water under filter effects of forward osmosis membranes and osmotic pressure effects and allowing the clear water to flow into draw solution tanks. The COD (chemical oxygen demand) concentration of the livestock and poultry breeding wastewater is 1000-5000 mg / L, the content of TN (total nitrogen) in the livestock and poultry breeding wastewater is 500 mg / L, and the content of TP (total phosphorus) in the livestock and poultry breeding wastewater is 100 mg / L. The forward osmosis membrane assemblies run in such two modes that active layers face draw solution or the raw material solution. The method has the advantages that the method is high in nitrogen, phosphorus and organic matter treatment efficiency, and recycling standards can be met by outlet water; forward osmosis procedures are low in energy consumption and little in membrane pollution, and accordingly the method is high in market competitiveness in the aspect of technological running cost.
Owner:XIAMEN UNIV OF TECH
Paper mill production wastewater treatment method
ActiveCN105060626AGood removal effectNo addedMultistage water/sewage treatmentWaste water treatment from plant processingConstructed wetlandGrating
The invention discloses a paper mill production wastewater treatment method. Wastewater sequentially goes through a pretreatment water collection pool, a grating, a sand basin, a physical filtering pool, an ice gate, an electromagnetic adsorption pool, an air floatation pool, an acidifying pool, a contact oxidation pool, a secondary sedimentation pool, a constructed wetland treatment system, a recirculation storage pool, a mud storage pool and a belt filter press. The low energy consumption and environmental protection ice gate is adopted in the invention, is used in the papermaking wastewater treatment process for the first time, and has obvious removal effects on small solid suspension and unique organic matters difficult to remove in papermaking wastewater without adding chemical reagents. In the papermaking wastewater treated through the method, the removal rate of chemical oxygen demand is 98.1%, the removal rate of total nitrogen is 97.2%, the removal rate of five-day biochemical oxygen demand is 95.1%, the removal rate of suspensions is 96.1%, the chroma removal rate is 90.1%, and the turbidity removal rate is 98.8%.
Owner:浙江兴舟纸业有限公司
Disc multi-stage composite biological purification integrated process
InactiveCN105293824AIncrease the concentration of microorganismsImprove operational efficiencyWaste water treatment from animal processingMultistage water/sewage treatmentMicrometerIntegrated technology
The invention relates to a disc multi-stage composite biological purification integrated process. The integrated process involves three modules, namely, the cascade disc module (3 stages), the rough filtration muddy water separation module and the fine filtration dephosphorization biochemistry module. Three-stage gradually-reducing pipelines of the cascade disc module serve as disc supporting bodies, biochemical treatment of sewage is achieved through a biological film formed through disc rotation, discs are arranged in a classified mode, biological phases are classified, biodiversity is increased, microorganism reproduction and organic matter degradation are facilitated, and meanwhile the nitration function and the dephosphorization function are enhanced; special filter cloth with the aperture of 5-20 micrometers replaces a sedimentation basin to conduct mud-water separation; dephosphorization agents are put, dephosphorization is enhanced through filter cloth with the aperture of 0.5-10 micrometers, the sewage discharge standard is improved to meet the reuse requirement, and meanwhile the energy consumption utilization rate is increased and technical units are integrated.
Owner:SHENYANG JIANZHU UNIVERSITY
Up-flow anaerobic biological reaction/precipitator used for wastewater treatment
ActiveCN103723879ARealize integrationSmall footprintMultistage water/sewage treatmentChemistryBiomass
The invention discloses an up-flow anaerobic biological reaction / precipitator used for wastewater treatment. The up-flow anaerobic biological reaction / precipitator is rectangular in shape; an integrated structure of the up-flow anaerobic biological reaction / precipitator comprises a reaction zone, a water distribution zone, a settling zone, a water inlet and backflow system, a water outlet system, and a sludge and gas discharge system; the reaction zone is arranged at the lower part of the up-flow anaerobic biological reaction / precipitator; the settling zone is arranged at the middle of the upper part of the up-flow anaerobic biological reaction / precipitator; the bottom of the settling zone is provided with a water distribution / sludge backflow system; the water distribution zone is arranged between the reaction zone and the settling zone; the water inlet and backflow system is arranged in the reaction zone; and the water outlet system is arranged at the upper part of the up-flow anaerobic biological reaction / precipitator and on the diagonal corners. Up-flow reaction conditions can be obtained using the up-flow anaerobic biological reaction / precipitator, and are beneficial for biological reaction process mass transferring; biological reaction efficiency is increased; after biological reaction, wastewater is subjected to precipitation in the integrated settling zone, sludge obtained via precipitation is delivered back to the reaction zone, and it is beneficial for maintenance of microbial biomass.
Owner:CHINA PETROCHEMICAL CORP +1
Biochemical reagent and preparation method and application thereof
InactiveCN104845910AStrong on-the-spot operabilityIncrease the concentration of microorganismsBioreactor/fermenter combinationsBiological substance pretreatmentsSolid phasesChemistry
The invention provides a biochemical reagent, which is prepared from solid phase spray and liquid phase spray by mixing spray reaction; the mass ratio of the solid phase spray to the liquid phase spray is 1:0.4-0.6; the solid phase spray is composite non-metallic minerals A (patent number 201310017703.0); the liquid phase spray comprises the following components in parts by weight: 5-15 parts of compound bacteria, 5-15 parts of nutritional agent and 0.05-0.15 parts of binder, wherein the compound bacteria are bacillus subtilis and photosynthetic bacteria of which the mass ratio is 1:4-6. The invention provides mixing spray reaction equipment used for preparing the biochemical reagent and a method for preparing the biochemical reagent by using the equipment. The biochemical reagent prepared according to the invention takes into account two aspects of microorganism loading capacity and substrate mass transfer resistance, low cost and long service life are realized, and thus, the biochemical reagent and the preparation method and application thereof can be used for treating polluted water bodies of a city and used for various water treatment engineering projects, and have a bright prospect.
Owner:HOHAI UNIV
Garbage percolate processing technology
ActiveCN102295385BStably meet emission standardsSubsequent biochemical processes are beneficialMultistage water/sewage treatmentCatalytic oxidationEmission standard
The invention relates to the technical field of sewage processing, and provides a garbage percolate processing technology. The technology comprises steps of coagulative precipitation, advanced catalytic oxidation, ammonia nitrogen stripping, combined biochemical processing, and the like. With the technology provided by the invention, ammonia nitrogen transformation rate and COD removing effect are greatly improved, garbage percolates at different stages can be effectively processed, and the processed percolates can all satisfy a discharge standard.
Owner:湖北科亮生物环保科技有限公司
Amino benzene analog waste water biological treatment method
InactiveCN100341797CHigh mechanical strengthReduce wear rateTreatment using aerobic processesWater contaminantsBenzeneBioprocessor
The invention discloses a method for strengthening amino benzenes production wastewater SBR biological treatment with synthesized macroporous high-molecular polymer as immobilization microbe. For the drawback of the prior microbe carrier, the invention provides a kind of synthesized high-molecular polymer as immobilization microbe, and applies it to strength amino benzenes production wastewater SBR biological treatment. Compared with prior SBR technique, when microbe carrier used is 2-10% of active volume of the reactor, and the technique condition such as aeration volume, reaction time and temperature equals, with the method, the clearance of amino benzenes materials improves by 35-60% and the concentration of ammonia nitrogen in water outlet decreases by 5-15mg / L. The invention can be applied for modifying the prior wastewater treatment device, or building new wastewater treatment device, having good economic profit and environmental benefit.
Owner:NANJING UNIV
Coal chemical industrial wastewater treatment system and treatment process
InactiveCN105923907AIncrease the concentration of microorganismsImprove biodegradation efficiencyFatty/oily/floating substances removal devicesSpecific water treatment objectivesIndustrial wastewater treatmentCoal chemical industry
The invention discloses a coal chemical industrial wastewater treatment system and a treatment process thereof. The coal chemical industrial wastewater treatment system comprises a raw water tank, an anaerobic tank, an aerobic tank and a membrane tank, which are sequentially connected, wherein coal chemical industrial wastewater sequentially passes through the anaerobic tank, the aerobic tank and the membrane tank after reaching the raw water tank through a lifting pump; an aeration device is arranged in the aerobic tank; a reflux circulation pipeline is arranged between the lower part of the membrane cell and the anaerobic tank; an activated coke addition system is arranged on the anaerobic tank, and a certain amount of activated coke is added into the anaerobic tank. The characteristic of developed mesopores of the activated coke in the wastewater treatment system can be fully utilized to achieve good adsorption effects on difficult-to-degrade organic matters, macromolecular organic matters and the like in the wastewater, and in addition, the activated coke can serve as a colloidal nucleus of activated sludge to improve the performance and water-bearing feature of the sludge and form a good water passage in the surface of a membrane to ensure membrane flux and prevent membrane pollution and plugging; moreover, the activated coke can be regenerated or mixed and hydrated with the sludge for blending combustion, so that the using cost is low.
Owner:BEIJING GUODIAN FUTONG SCI & TECH DEV
Deep treatment technology and device for non-biodegradable wastewater
PendingCN110040913AIncrease profitIncrease the concentration of microorganismsWater/sewage treatment with mechanical oscillationsWater contaminantsOzone generatorSludge
The invention belongs to the technical field of wastewater treatment, in particular to a deep treatment technology for non-biodegradable wastewater. The deep treatment technology comprises the following steps: step 1: carrying out ozone and ultrasound cooperative oxidization treatment; step 2: carrying out biochemical treatment. A deep treatment device for the non-biodegradable wastewater comprises an ozone gas dissolving device, an ozone generator, an ultrasonic reactor, an ozone reactor and a CBR biofilm reaction cell, which are arranged in sequence. According to the deep treatment technology and the deep treatment device, an ozone and ultrasound cooperative oxidization technology and a CBR biochemical treatment technology are coupled, so that the ozone treatment cost can be reduced andozone can be utilized at maximum, and the optimal treatment effect of the non-biodegradable wastewater is realized; meanwhile, hazardous waste including sludge and the like are not generated and secondary pollution to the environment is not caused; the implementation cost of the technology is relatively low and the water quality of output water is good, so that the deep treatment technology and the deep treatment device are suitable for popularization and application.
Owner:浙江巨能环境工程有限公司
ECR sewage treatment equipment
PendingCN111960534AExtended service lifeIncrease the concentration of microorganismsTreatment with aerobic and anaerobic processesWater treatment multistage treatmentsSludgeSewage
The invention relates to the technical field of sewage treatment, more particularly, relates to ECR sewage treatment equipment. Key points of the technical scheme are as follows: the ECR sewage treatment equipment comprises a hollow equipment shell, a spacing assembly is arranged in the equipment shell; the spacing assembly divides the inner cavity of the equipment shell into an aerobic zone, a filler zone and a sludge zone which are communicated with one another; wherein the aerobic zone and the filler zone are adjacent to each other and located on the same horizontal plane, the sludge zone is located below the aerobic zone and the filler zone, a door plate capable of swinging back and forth in the vertical direction is further arranged on the side wall of the equipment shell, and the equipment can be overhauled by opening the door plate. The sewage treatment equipment can effectively remove nitrogen, phosphorus and other elements and organic pollutants in sewage and has the advantages of being easy to assemble, convenient to overhaul and stable in effluent.
Owner:深圳市前海东江环保科技服务有限公司
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