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67results about How to "Improve the effect of biological treatment" patented technology
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Efficient paint mist coagulating agent and preparation thereof
InactiveCN101407353AImprove working environmentExtended service lifeWater/sewage treatment by flocculation/precipitationIron saltsWastewater
The invention relates to a highly-efficient paint mist coagulant and an application method thereof. The paint mist coagulant includes an A reagent and a B reagent, the A reagent is a water solution mainly prepared by a modified macromolecule polymerization metal salt, the macromolecule polymerization metal salt is aluminium salt or iron salt; the B reagent is a water solution mainly prepared by a polymerization amide-type substance with molecular weight of 9 millions to 12 millions. When in application, the paint waste water is blended with the A reagent and the B reagent according to volume ratio of 500:2:1, thus leading the paint in the paint waste water to cake and float, the paint and the water are separated, clear water is obtained to reuse. The usage is firstly adding the A reagent, and adding the B reagent after even blending. The processed paint waste water is fat-soluble paint waster water and water-soluble paint waste water. The highly-efficient paint mist coagulant has a wide reagent source, effectively overcomes the disadvantages of the trivial preparation process, many and complex additional reagents and high price of the traditional paint mist coagulant, can reduce common paint waste water treatment cost to 0.25 yuan / ton and can be widely used in circulating water treatment in a wet-typed paint mist removing system.
Owner:WUHAN UNIV OF TECH
Biological sewage reaction system and upgrading and expanding method
InactiveCN103991959AImprove the effect of biological treatmentImprove processing efficiencyTreatment with aerobic and anaerobic processesTotal phosphorusActivated sludge system
The invention discloses a biological sewage reaction system and an upgrading and expanding method. The biological sewage reaction system comprises a biological sewage reaction tank; an anoxic activated sludge region, an anoxic / anaerobic activated sludge region and an anoxic / aerobic transition region are sequentially communicated, an MBBR (Moving Bed Biofilm Reactor) treatment region is communicated with an aerobic activated sludge region through a perforation in the bottom of a partition wall, and the MBBR treatment region is communicated with a pure aerobic activated sludge region through an effluent screen mesh; the anoxic / aerobic transition region is communicated with the aerobic activated sludge region, and the pure aerobic activated sludge region is communicated with the anoxic activated sludge region through an internal reflux submersible sewage pump; the pure aerobic activated sludge region is communicated with a secondary sedimentation tank through a pipeline, and the secondary sedimentation tank is communicated with the anoxic activated sludge region through a return pipeline. The traditional CAST (Cyclic Activated Sludge Technology) / CASS (Cyclic Activated Sludge System) biological tank is modified, and therefore, on the premise that the modifying cost is reduced, the capacity for removing total nitrogen (TN) and total phosphorus (TP) organisms in the tank is effectively improved, the pollution load (expanding) treatment capacity is improved, and the sewage treatment efficiency is increased.
Owner:QINGDAO SPRING WATER TREATMENT
Technology for processing comprehensive waste water from acrylonitrile and acrylic fibers production
ActiveCN102190408AReduce refluxIncrease concentrationMultistage water/sewage treatmentNature of treatment waterAcrylonitrileOxygen
The invention relates to a technology for processing comprehensive chemical waste water from acrylonitrile and acrylic fibers production and is directed to the field of environment engineering technology. According to the invention, an aeration reaction, a biology hydrolysis acidification, a denitrification nitrogen removal and an aerobic biological treatment are adopted. The waste water is classified into C, N and S grade. The toxicity problem for microbes caused by the waste water is solved; the biological treatment capability and waste water processing effect are improved. The technology is characterized by simple and reasonable process flow. The operation cost is reduced. The technology is suited for industrial application and biology processing of high sulfur high nitrogen organic waste water of the same kind.
Owner:博瑞德环境集团股份有限公司
Water treatment device and method for cleaning filtration material layer for water treatment device
InactiveCN101934162AEasy maintenanceImprove cleaning efficiencySpecific water treatment objectivesWater/sewage treatment with mechanical oscillationsWater volumeFiltration
The invention provides a water treatment device and method for cleaning the same, which can reduce the ratio of cleaning water volume to the treated water volume (filtered water volume), thereby can improve water treatment efficiency and cause the structure compacter and simplier. A water treatment device comprising: a jet nozzle (7) for mixed raw water flow; a filtration tank (5) for containing a filtration material layer (4) which comprises two layers which are an upper layer (2) and a lower layer (3) and are arranged below the jet nozzle for mixed raw water flow, the upper layer consisting of filtration materials having a smaller specific gravity and a greater particle diameter than the filtration materials of the lower layer; a water collecting / distributing pipe (13) for extracting filtered water and supplying reverse washing water to the filtration material layer in reverse washing operation; a filtration material vibrating means for vibrating each particle of the filtration materials, the filtration material vibrating means being provided with a vibration element (9) connected to the power source and also with vibration expansion elements (10) embedded in the upper layer (2) in such a manner that the vibration of the vibration element (9) is transmitted to the vibration expansion elements (10); and a drainage trough (12) provided above the filtration material layer.
Owner:NAGAOKA INT
Preparation method of modified montmorillonite-containing reticulated polyurethane microbial carrier
ActiveCN105440304AImprove water resistancePromote degradationTreatment with aerobic and anaerobic processesTreatment with microorganism supports/carriersPolyesterPolymer science
The invention belongs to the technical field of microbial carrier preparation methods and relates to a preparation method of a modified montmorillonite-containing reticulated polyurethane microbial carrier with an interpenetrated network structure. The preparation method comprises adding vinyl polyether polyol, polyether polyol, polyester polyol, H2O, silicone oil, a tin catalyst, an amine catalyst and an olefin monomer into a reactor, carrying out stirring to obtain a uniform mixture, adding modified montmorillonite into the mixture, carrying out stirring to obtain a uniform mixture, carrying out thermal insulation, wherein the mixture is used as a component 1, adding isocyanate and a free radical polymerization initiator into a reactor, carrying out stirring to obtain a uniform mixture as a component 2, mixing the component 1 and the component 2 to obtain a uniform mixture, carrying out foaming to obtain polyurethane flexible foam and carrying out meshing treatment on the polyurethane flexible foam through an alkali liquor immersion or explosion method to obtain the reticulated polyurethane microbial carrier with an interpenetrated network structure. The olefin polymer is introduced into the reticulated polyurethane microbial carrier through the interpenetrated network structure so that hydrolysis resistance and biodegradation resistance of the carrier are improved and compatibility of the polyurethane ingredient and the olefin polymer ingredient is improved.
Owner:青岛水务集团有限公司
Method and device for restoring ecology
InactiveCN101830566AAvoid safety hazardsWith greenWind energy with electric storagePV power plantsPorosityEutrophication
The invention discloses a method and a device for restoring ecology, and belongs to the technical field of water eutrophication treatment. In the method for restoring the ecology, water restoration is performed by biological carriers and in an aeration mode; the biological carriers suspend in the water with different depths and the biological carriers of each layer of depth are arranged uniformly and fixed; the biological carriers have the high specific surface area and the high porosity, provide a good ecological environment for the growth and the propagation of organisms, and also provide enough dissolved oxygen for the biological oxidation through the aeration; in the aeration mode, a rotatable aerator which is complementarily powered by wind energy and electric energy is adopted to increase the aeration area, so that the water restoration effect is improved. An organism system which is attached on the biological carriers decomposes an organic matter in the water through metabolism per se; an aeration pipe and the aerator aerate and rotate at the same time, so that the water aeration area is increased greatly; and the method and the device have the advantages of environmental protection and the like.
Owner:王俊川
Method for simultaneously obtaining organic fertilizers and biological proteins by biologically treating inapplicable fresh tobacco leaves by utilizing lucilia sericata larvae
The invention discloses a method for simultaneously obtaining organic fertilizers and biological proteins by biologically treating inapplicable fresh tobacco leaves by utilizing lucilia sericata larvae. The method is characterized by comprising the following steps: stirring chips of the inapplicable fresh tobacco leaves and auxiliary materials such as fish meal uniformly to prepare culture materials, inoculating lucilia sericata eggs onto the surfaces of the culture materials, biologically transforming the culture materials by the hatched lucilia sericata larvae, simultaneously transforming the inapplicable fresh tobacco leaves to bio-organic fertilizers, and thus obtaining lucilia sericata maggot biological proteins. The method has the beneficial effects that the inapplicable fresh tobacco leaves are biologically transformed by utilizing the lucilia sericata larvae and the lucilia sericata maggot biological proteins and the high-quality bio-organic fertilizers are generated while the inapplicable tobacco leaves are disposed; about 3-4 tons of commercial bio-organic fertilizers and about 0.8-1.2 tons of fresh lucilia sericata maggots can be produced in the process of treating 10 tons of inapplicable fresh tobacco leaves each time, and thus efficient resource utilization of the inapplicable fresh tobacco leaves is achieved and wastes are turned into useful things; the occupied site is small and can be reused, so that the land usage is not changed; the tobacco leaves only need to be cut up or ground into 2-3cm powder, and thus the grinding cost is remarkably reduced; the energy consumption is low and discharge is less in the treatment process; the returns can be increased as the bio-organic fertilizers and the biological proteins are simultaneously generated.
Owner:GUANGDONG BRANCH OF CHINA TOBACCO GENERAL +1
Paint mist coagulant and preparation method thereof
InactiveCN102502935AImprove working environmentImprove circulating water qualityWater/sewage treatment by flocculation/precipitationEnvironmental engineeringAqueous solubility
The invention discloses a paint mist coagulant and a preparation method thereof. The paint mist coagulant comprises an agent A and an agent B, wherein the agent A is an aqueous solution which is prepared by taking a macromolecular polymeric metal salt as a main component; the macromolecular polymeric metal salt is aluminum salt or ferric salt; and the agent B is an aqueous solution which is prepared from a polyamide substance with the molecular weight of 9000000-12000000. In the application, paint wastewater, the agent A and the agent B are mixed according to a volume ratio of 500: 2: 1, paint in the paint wastewater agglomerates and floats upwards, the paint is separated from water to obtain clear water, and the clear water is reused; the application method is that the agent A is added and uniformly mixed firstly and then the agent B is added; and the treated paint wastewater is fat-soluble treated paint wastewater and water-soluble treated paint wastewater. The chemicals used in the invention are wide in source; the defects that the conventional process of preparing the paint mist coagulant is complicated and many complicated and expensive chemicals are added are overcome; the treatment cost of the ordinary paint wastewater can be reduced to 0.25 Yuan per ton; and the paint mist coagulant can be widely applied to circulating water treatment of a wet-type paint mist removing system.
Owner:CHANGSHA GUTERUI NOVEL MATERIAL SCI & TECH
Sewage treatment method and sewage treatment device with middle-arranged ozone reinforced bacteria filter
InactiveCN103553270AEasy to handleReduce dosageMultistage water/sewage treatmentActivated carbonPtru catalyst
The invention discloses a sewage treatment device with a middle-arranged ozone reinforced bacteria filter. The sewage treatment device comprises a front-arranged biological aerated filter, an ozone contact pond and a rear-arranged biological filter which are connected together through pipelines. The sewage treatment device has the advantages that a good treatment effect on sewage is achieved, the ozone addition amount can be reduced, the oxidation effect is improved, the oxidation capability and the sewage removal effect are improved as a catalyst is added into the ozone contact pond, the contact time for removing dirties inside the ozone contact pond in an absorption manner is sufficient, and the absorption effect is good. In addition, powder activated carbon has a certain catalysis action on ozone oxidation, the oxidation effect is improved, the rear-arranged biological filter does not need aeration, the energy consumption is saved, the biological action of the biological filter can be prompted by the powder activated carbon which absorbs organic pollutant substances, and the biological treatment effect is improved.
Owner:CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD
Preparation method of long raw bamboo fiber
ActiveCN107937993AAchieve softeningEasy to soakMechanical fibre separationFibre treatment to obtain bast fibreChemical treatmentWastewater
The invention discloses a preparation method of long raw bamboo fiber, which belongs to the technical field of vegetable fiber production, and solves the problems of low production efficiency, low yield and serious waste water pollution of the current preparation methods. The method comprises the following steps: bamboo wood slicing, high-temperature high-pressure treatment, tearing processing, enzyme processing, chemical treatment, drying, and carding processing. The obtained long raw bamboo fiber has the following characteristics that an average fiber length is 4-5 cm, fineness is no less than 100 Nm, and the yield is no less than 60%. In addition, the long raw bamboo fiber has the beneficial effects that high production efficiency (annual output of a production line is no less than 50,000 tons), waste water pollution is light, and fiber is soft.
Owner:FUJIAN AGRI & FORESTRY UNIV
Biofiltration bed-ecological floating bed eutrophication landscape water treatment system
InactiveCN104671413ASimple structureSimple operation and maintenanceWater treatment compoundsTreatment involving filtrationEutrophicationDistribution system
Owner:BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE +1
Vertical subsurface flow constructed wetland sewage purification device and method
InactiveCN104193075ALow toxicityImprove water qualityMultistage water/sewage treatmentConstructed wetlandCavitation
The invention discloses a vertical subsurface flow constructed wetland sewage purification device which is mainly composed of a cavitation air flotation device, a biological rotating disc-biological filter composite device, a vertical subsurface flow constructed wetland and a cyclone sand removal device. The invention also discloses a method for treating phosphorus-containing organic wastewater by utilizing the vertical subsurface flow constructed wetland sewage purification device. According to the invention, residual ammonia nitrogen and other polluted substances in the sewage can be efficiently removed, the quality of the sewage is improved, and secondary pollution in the treatment process is avoided. Meanwhile, a power-free transfer technology is adopted, a sewage treatment method is expanded by virtue of a mechanical method, and the construction cost and expense of advanced sewage treatment can be greatly reduced.
Owner:席北斗
Method for obtaining organic fertilizer and bioprotein simultaneously by biologically treating inapplicable fresh tobacco leaves with chrysomya megacephala larva
InactiveCN104186909AStable growthImprove growth performanceFood processingAnimal feeding stuffBiotechnologyResource utilization
The invention discloses a method for obtaining organic fertilizer and bioprotein simultaneously by biologically treating inapplicable fresh tobacco leaves with chrysomya megacephala larva. The method mixes the inapplicable fresh tobacco leaves with auxiliary materials such as fish meal, guarantees the growth effect of the chrysomya megacephala on basis of scientifically treating the inapplicable tobacco leaves; and finally collects pure larva and breeding residues respectively, thus obtaining two products of nicotine-free bioprotein and organic fertilizer. About 3-4 tons of commercially bio-organic fertilizer and about 0.8-1.2 tons of the nicotine-free bioprotein can be produced by treating 10 tons of the inapplicable fresh tobacco leaves, so that efficient resource utilization of the inapplicable fresh tobacco leaves can be realized and wastes are changed into wealth. The place occupied by the method is small, and can be used repeatedly, without changing land usage. According to the method, the tobacco leaves only need to be cut or chopped into 2-3 cm, so that smashing cost is significantly reduced; a processing process has low energy consumption and few emissions; and the produced bio-organic fertilizer and bioprotein can increase profits.
Owner:SUN YAT SEN UNIV +1
Biological treatment method of copper polluted seawater
The invention relates to the technical field of environmental protection, in particular to a biological treatment method of copper polluted seawater. The biological treatment method of the copper polluted seawater is characterized by comprising the following steps: inoculating microorganisms into a culture medium, performing cultivation, adding the microorganisms into the heavy metal polluted seawater and performing heavy metal polluted repair, wherein the microorganisms are one or a combination of more of bacillus, aspergillus flavus, Chinese chlorella, prorocentrum donghaiense and candida catenulata. The biological treatment method of the copper polluted seawater has the characteristics of large adsorption capacity, high selectivity, high efficiency and low cost; furthermore, a method for embedding the microorganisms is adopted, the treatment capability on the copper heavy metal in the seawater is improved, and the stability is improved.
Owner:MARINE FISHERIES RES INST OF ZHEJIANG
Process for treating wastewater generated in neopentyl glycol production
InactiveCN102190406AReduce processing costsImprove efficiencyMultistage water/sewage treatmentNature of treatment waterChemical reactionElectrolysis
The invention relates to a process for treating wastewater generated in neopentyl glycol production. The process comprises the following steps of: removing a formaldehyde component from the wastewater generated in neopentyl glycol production by combining steam stripping, electrolysis and chemical reaction, so that the concentration of the formaldehyde in the wastewater is reduced to below 3mg / L; adding nutritive salt into the wastewater generated in neopentyl glycol production and subjected to formaldehyde removal to complement nutrients for the wastewater; and removing organic pollutants and the like from the sewage by using microbes attached to the surface of a combined biological filler through a biological contact oxidation tank process. The process has the characteristics of low comprehensive treatment cost, high efficiency and good treatment effect.
Owner:TAISHAN SPORTS IND GRP +2
Multilayer fiber bundle biofilm purification device
InactiveCN110963561AFully and evenly diffusedAvoid positionWater/sewage treatment apparatusBiological water/sewage treatmentBiofilmFiber bundle
Belonging to the technical field of biofilms, the invention discloses a multilayer fiber bundle biofilm purification device. The multilayer fiber bundle biofilm purification device comprises a purifier installed on a base, the bottom end of the purifier is fixedly connected to a hollow tapered flow guide body, fiber bundle biofilms are positioned and bound in the vertical direction through aeration pipes, thus effectively avoiding position deviation and mutual winding easily caused by aeration disturbance or water flow impact, meanwhile, a movable filter plate in contact with sewage is also sleeved to the aeration pipes, after the movable filter plate is pressed downwards, the densities of the filter layers of the fiber bundle biofilms increase gradually along the water flow direction, andthe pores of the corresponding filter layers are gradually reduced, thus realizing deep filtration, and after the filtration work is completed, the movable filter plate is reset upwards under the action of a traction reset mechanism, so that the fiber bundle biofilms can be reset upwards to be in a relaxed state again, and aeration treatment performed at the moment facilitates uniform diffusion of oxygen into the fiber bundle biofilms.
Owner:杭州未来已来科技有限公司
Method for simultaneously obtaining organic fertilizers and biological proteins by biologically treating inapplicable fresh tobacco leaves by utilizing nicotine resistant musca domestica L. larvae
InactiveCN104186425AStable growthAdd a small proportionClimate change adaptationAnimal feeding stuffOrganic fertilizerToxicology
The invention discloses a method for simultaneously obtaining organic fertilizers and biological proteins by biologically treating inapplicable fresh tobacco leaves by utilizing nicotine resistant musca domestica L. larvae. The method is characterized by comprising the following steps: preparing culture materials from chips of the inapplicable fresh tobacco leaves and auxiliary materials such as fish meal, inoculating nicotine resistant musca domestica L. eggs onto the surfaces of the culture materials, biologically transforming the culture materials by the hatched musca domestica L. larvae and transforming the inapplicable fresh tobacco leaves to bio-organic fertilizers quickly. The method has the beneficial effects that the inapplicable fresh tobacco leaves are biologically transformed by utilizing the nicotine resistant musca domestica L. larvae, and thus pollution caused by the inapplicable fresh tobacco leaves is eliminated; the musca domestica L. maggot biological proteins and the high-quality bio-organic fertilizers are generated while the inapplicable tobacco leaves are disposed; about 3-4 tons of commercial bio-organic fertilizers and about 0.8-1.2 tons of fresh musca domestica L. maggots can be produced in the process of treating 10 tons of inapplicable fresh tobacco leaves each time, and thus efficient resource utilization of the inapplicable fresh tobacco leaves is realized and wastes are turned into useful things; the occupied site is small and can be reused, so that the land usage is not changed; the tobacco leaves only need to be cut up or ground into 2-3cm powder, and thus the grinding cost is remarkably reduced; the energy consumption is low and discharge is less in the treatment process; the returns can be increased as the bio-organic fertilizers and the biological proteins are simultaneously generated.
Owner:SUN YAT SEN UNIV +1
Efficient and automatic control sewage treatment system
InactiveCN106698540APromote degradationPromote decompositionTreatment involving filtrationTreatment control/steeringWater treatment systemAutomatic control
The invention discloses an efficient and automatic control sewage treatment system. The system comprises a first treatment tank, a second treatment tank, a third treatment tank, a collection device, an analysis device and a control device, wherein the control device is in communication connection with the collection device, the analysis device, a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, a detection device and a chemical falling valve; a first similarity S1 is pre-set in the control device; the control device is used for obtaining a similarity comparing result S through the analysis device; the S is compared with the S1; the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve are controlled to move according to a comparing result instruction; a first organic matter content value Y1 and a second organic matter content value Y2 are pre-set in the control device; and the control device is used for obtaining third treatment tank organic matter content Y through the detection device, comparing Y with the Y1 and the Y2, and controlling the chemical falling valve and a fifth solenoid valve to move according to a comparing result.
Owner:ASIA PACIFIC WATER TREATMENT TIANCHANG
Biological rotating disc for sewage treatment
ActiveCN107827237ASolve the problem of poor anaerobic treatment effectReduce exposureTreatment with aerobic and anaerobic processesAnaerobic treatmentEngineering
The invention discloses a biological rotating disc for sewage treatment. The biological rotating disc comprises a water collecting tank, an aeration mechanism arranged inside the water collecting tank, an aerobiotic rotating disc mechanism formed by connecting multiple aerobiotic rotating discs in order, and an anaerobic rotating disc mechanism formed by connecting multiple anaerobic rotating discs in order. The aerobiotic rotating disc is a circular ring structure such that a cavity which is coaxial with the aerobiotic rotating disc mechanism is formed inside the aerobiotic rotating disc mechanism. The biological rotating disc comprises a shield shell positioned inside the cavity. The anaerobic rotating disc mechanism is positioned inside the shield shell. The shield shell positioned outside the cavity is fixed on the water collecting tank. A motor is fixed inside the shield shell. The motor is connected to a rotating shaft. The aerobiotic rotating disc mechanism and the anaerobic rotating disc mechanism are respectively coaxially fixed on the rotating shaft such that the rotating shaft can simultaneously drive the aerobiotic rotating disc mechanism and the anaerobic rotating discmechanism to coaxially rotate. The problem that an aerobiotic biomembrane outside the biological rotating disc is easy to fall off after scoured by current such that oxygen enters an internal anaerobic biomembrane and then anaerobic treatment effect becomes worse is solved.
Owner:江苏如克环保设备有限公司
Compact supporting filler
ActiveCN102092839BIncrease speedIncrease profitBiological water/sewage treatmentFiberMechanical engineering
The invention relates to a compact supporting filler, which comprises a central rope and a fiber fixed on the central rope, wherein the fiber comprises a plurality of fiber units; each fiber unit is wound on the central rope in a way of forming a spiral layer; and every two adjacent fiber units are connected to form a plurality of spiral layers, and are arranged closely and attached. The spiral structure can effectively improve the water distribution and air distribution performance of the filler, fully increase the transfer rate and utilization rate of oxygen and remarkably better biologicaltreatment effects.
Owner:SUZHOU SUJING NEW MATERIALS IN ENVIRONMENTAL PROTECTION
Method for treating lignite upgrading wastewater by virtue of micro-aerobic co-metabolism
InactiveCN104496122AImprove biodegradabilityHigh feasibilityWater/sewage treatmentMultistage water/sewage treatmentMunicipal sewageTrehalose
The invention discloses a method for treating lignite upgrading wastewater by virtue of micro-aerobic co-metabolism and relates to a method for treating coal chemical engineering wastewater. The method is used for solving the problems of difficulties in starting and proliferation of microbes in the conventional micro-aerobic process for treating lignite upgrading wastewater. The method comprises the following main steps: selecting lignite upgrading wastewater; by adopting returned sludge from a secondary sedimentation tank of an urban sewage treatment plant as inoculation sludge and using trehalose as a first substrate for co-metabolism, controlling the ratio of the concentration (COD equivalent weight) of added trehalose to the COD concentration of to-be-treated lignite upgrading wastewater at 0.1-1.0; maintaining the COD sludge load at 0.3-1.0kgCOD / (kgMLSS.d) at the hydraulic retention time of 6-24 hours and the superficial gas velocity of 0.09-0.15cm / s; and controlling stable industry and mining. According to the method, by adopting trehalose as the first substrate for treating lignite upgrading wastewater by virtue of micro-aerobic co-metabolism, the biodegradability of the lignite upgrading wastewater is greatly improved and the starting time of a reactor is shortened. After the reactor stably operates, the removal rate of COD in the lignite upgrading wastewater treated by micro-aerobic co-metabolism can reach above 70% and the removal rate of the total phenol can reach 80-90%.
Owner:JILIN JIANZHU UNIVERSITY +1
Baffled MBBR biochemical system of flexible suspended filler
PendingCN113912178ASolve the problem of uneven filler distributionEvenly distributedWater contaminantsBiological treatment apparatusOutfallMechanical engineering
The invention discloses a baffled MBBR biochemical system of a flexible suspended filler, aiming at solving the problems in the prior art that a suspended carrier is non-uniform in fluidization and is easy to accumulate at an interception net, the biomass of the filler is increased, and dead mud is formed in the filler. The system comprises a tank body, an aeration pipeline, an air blade, a main air supply device and an air stripping reflux device, the tank body is provided with a plurality of groups of baffle walls to be separated into a plurality of groups of baffle chambers, and the plurality of groups of baffle walls are sequentially provided with water outlets with opposite height positions according to the sequence from the water inlet of the tank body to the water outlet of the tank body; the air blade is arranged at water outlets of the multiple groups of baffle walls and jet air flow in the vertical direction; a water outlet intercepting net is arranged at the water outlet of the tank body, and a water inlet intercepting net is arranged at the water inlet of the tank body; an aeration pipeline is arranged at the bottom of the tank body and is connected with a main air supply device; the gas stripping reflux device is communicated with the baffling chamber where the water inlet of the tank body is located and the baffling chamber where the water outlet of the tank body is located to enable liquid to flow back, wherein the particle size of the flexible suspended filler is larger than that of meshes of the intercepting net, so that the flexible suspended filler can flow back along with liquid through the gas stripping reflux device.
Owner:李庆辉
In-situ upgraded treatment method for realizing zero discharge of refinery and chemical wastewater and biological stuffing used in in-situ upgraded treatment method
ActiveCN103951061AEasy to handleSimple processTreatment with aerobic and anaerobic processesSustainable biological treatmentActivated sludgeChemical oxygen demand
The invention relates to an in-situ upgraded treatment method for realizing zero discharge of refinery and chemical wastewater and particularly relates to an upgraded treatment process for treating refinery and chemical wastewater by using an activated sludge process and a hydrolytic acidification-activated sludge process and an implementing method of the upgraded treatment process. According to the method provided by the invention, the existing refinery and chemical wastewater treatment structure is adopted, and specific hollow three-dimensional stuffing and polyurethane foam stuffing are filled in a corridor biological reaction tank for biological membrane hydrolytic acidification and biological membrane contact oxidation, so that operation process parameters are regulated, and a biological membrane-activated sludge symbiotic A / O (anaerobic / aerobic) wastewater treatment process is formed. The method has the advantages that the number of the wastewater treatment structure is not increased, and the in-situ upgraded treatment method is suitable for upgrading and modifying the traditional wastewater treatment system, stable in effluent quality and high in COD (chemical oxygen demand) (namely CODcr, same as follows) as well as ammonia nitrogen and total nitrogen removal ratio, wherein the COD of effluent is less than 50mg / L, the ammonia nitrogen content is less than 5mg / L and the total nitrogen content is less than 20mg / L, so that the upgraded discharge standard requirement is met.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1
Method for treating biological hanging films with high-alkali type saline-alkali water
ActiveCN106893701AImprove the effect of biological treatmentSolve technical problemsImmobilised enzymesWaste water treatment from animal husbandryWater flowBiological filter
The invention relates to a method for treating biological hanging films with high-alkali type saline-alkali water and belongs to the technical field of water treatment. The invention aims to solve the problems that the treatment time of existing biological hanging films is long, and the biological films are easy to damage. The method for treating the biological hanging membrane comprises the following steps: 1, a biological film culture system consists of a fixed biological bed culture pool and a movable biological bed culture pool, and microbial strains are inoculated on floating filter material carriers; 2, the floating filter material carriers in the fixed biological bed culture pool are closely arranged above a stainless steel mesh, water is sprayed through an annular water outlet pipeline for biological treatment culture, and backwashing is performed during the culture to obtain the floating filter material carriers adhered with the biological films; 3, water is sprayed in the movable biological bed culture pool through the annular pipeline to keep moving the floating filter material carriers for biological film culture; 4, the floating filter material carriers are respectively transferred into a fixed biological filter and a movable biological filter. The method provided by the invention has the benefit that the biological treatment culture is constantly simulated through water flow, so that the culture of the biological films is accelerated, and the adhesion quality of the biological films is improved.
Owner:HEILONGJIANG RIVER FISHERY RES INST CHINESE ACADEMY OF FISHERIES SCI
Method and System for Phosphorus and Nitrogen Removal in Sewage
InactiveCN102267783AShort hydraulic retention timeLow costMultistage water/sewage treatmentOxygenLarge particle
The invention discloses a method and system for removing phosphorus and nitrogen from sewage, belonging to the field of sewage treatment. The method includes: pretreatment: making the sewage enter the pretreatment unit for pretreatment, removing large suspended solids in the sewage, and adjusting the sewage from which the suspended solids have been removed; biological phosphorus removal treatment: making the effluent after the above pretreatment enter the Biological phosphorus removal and organic matter removal are carried out in the biological phosphorus removal unit; biological autotrophic denitrification treatment: the effluent after the above biological phosphorus removal treatment enters the biological autotrophic denitrification unit, and passes through the The autotrophic metabolism of anammox bacteria in the bioautotrophic denitrification unit removes nitrogen in sewage, and the effluent from the bioautotrophic denitrification unit is used as regenerated water for phosphorus and nitrogen removal. The method has short technological process, good phosphorus and nitrogen removal effects, and low cost.
Owner:BEIJING YIPU INT WATER AFFAIRS
Method for treating lignite quality-improving waste water through aerobic cometabolism
InactiveCN104445592AImprove the effect of biological treatmentImprove processing performanceWaste water treatment from quariesTreatment using aerobic processesMunicipal sewageEnvironmental chemistry
The invention relates to a method for treating lignite quality-improving waste water through aerobic cometabolism, relating to a method for treating coal chemical industry waste water and solving the problems of poor removal effect of an aerobic reactor on a pollutant component which can not be directly used as a microbe nutrient substance or smaller quantity and poorer flora function of microbe florae capable of degrading the substance. The method comprises the following main steps of selecting the lignite quality-improving waste water; selecting trehalose as a first substrate used for the cometabolism, wherein the addition amount of the trehalose is regulated and controlled by an automatic addition system; and by taking return sludge of a secondary sedimentation tank of an urban sewage plant as inoculated sludge, keeping the hydraulic retention time of the aerobic reactor at 18-24 hours, and controlling a stable working condition. According to the method, the trehalose is taken as the first substrate, so that an organic substance which can not be taken as an aerobic microbe direct substrate can be degraded or the growth and propagation of an aerobic microbe which takes the substance as the substrate are intensified; after the operation is stable, the COD removal ratio of the lignite quality-improving waste water subjected to aerobic treatment can achieve more than 85%, and the total phenol removal ratio can achieve more than 80%.
Owner:JILIN JIANZHU UNIVERSITY +1
Biomass-emission-free method for enhancing biological wastewater nitrogen and phosphorus removal effect
ActiveCN103601343AEmission reductionImprove the effect of biological treatmentMultistage water/sewage treatmentSludgeTreatment system
The invention relates to a biomass-emission-free method for enhancing a biological wastewater nitrogen and phosphorus removal effect. Two parts including a biological wastewater treatment system (short for BWT system) and a biomass circulating carbon source production system (short for BCPC system) are provided in the method. The method comprises the concrete steps of carrying out sludge-water separation in a secondary sedimentation tank after biologically removing nitrogen and phosphorus in the wastewater; enabling a part of separated sludge to flow back to a biological wastewater nitrogen and phosphorus removal reactor and the other part of sludge to enter an anaerobic biomass converter; then, carrying out solid-liquid separation, wherein the liquid (a carbon source required for wastewater phosphorus and nitrogen removal) is delivered to a liquid carbon source storage pool (for replenishing the concentration of the carbon source in feed water), and solid substances circularly enter the anaerobic biomass converter many times after being subjected to first-stage and second-stage treatments, so that no biomasses are discharged finally, and the wastewater nitrogen and phosphorus removal effect is remarkably enhanced.
Owner:TONGJI UNIV
Multistage baffled rainwater garden system used for processing initial rainwater and application of multistage baffled rainwater garden system
ActiveCN105672447ASatisfy the requirements of infiltrationExtended stayFatty/oily/floating substances removal devicesSewerage structuresPeak valueEngineering
The invention relates to a multistage baffled rainwater garden system used for processing initial rainwater and application of the multistage baffled rainwater garden system.The system comprises a filter area, multiple stages of baffled areas and an infiltration and reuse area which are sequentially connected in series.A non-overflow partition is arranged between the filter area and the first baffled area.The bottom of the filter area is communicated with the bottom of the first-stage baffled area.Overflow partitions are arranged between the odd-number baffled areas and the even-number baffled areas which are adjacent to the rear ends of the odd-number baffled areas.Non-overflow partitions are arranged between the even-number baffled areas and the odd-number baffled areas adjacent to the rear ends of the even-number baffled areas.The bottoms of the even-number baffled areas are communicated with the bottoms of the even-number baffled areas adjacent to the rear ends of the even-number baffled areas.An overflow partition is arranged between the last stage of baffled area and the infiltration and reuse area.The system can be suitable for gardens, communities, schools, urban green lands and the like, and pollutant in initial rainwater can be effectively processed; meanwhile, processed clean rainwater can infiltrate underground or be collected to be reused, and therefore the runoff volume and the runoff peak value are decreased, and the aims of environment protection and landscape improvements are achieved.
Owner:FUZHOU UNIV
Device and method for coupling efficient biological treatment and sludge reduction of trademark fabric production wastewater
PendingCN113277688AImprove biodegradation efficiencyHigh activityWater treatment compoundsBiological treatment regulationActivated sludgeMicroorganism
The invention discloses a device and a method for coupling efficient biological treatment and sludge reduction of trademark fabric production wastewater. The device comprises a neutralization tank, an adjusting tank connected with an outlet of the neutralization tank, a facultative tank connected with an outlet of the adjusting tank, a first-stage sedimentation tank connected with an outlet of the facultative tank, an aerobic tank connected with an outlet of the first-stage sedimentation tank, and a second-stage sedimentation tank connected with an outlet of the aerobic tank, and an outlet of the first-stage sedimentation tank and an outlet of the second-stage sedimentation tank are respectively connected with an inlet of the adjusting tank. According to the method disclosed by the invention, FeCl2 is added into inlet water of the adjusting tank, so that the pH of the alkaline wastewater is reduced, trace elements for growth of activated sludge microorganisms are provided, the activity of the microorganisms and the flocculation precipitability of the sludge are improved, and the biodegradation efficiency of the wastewater and the adsorption removal of antimony are improved. According to the method, the biological treatment efficiency of the wastewater can be improved while sludge reduction is realized, the operation is simple, the cost is relatively low, and engineering is easy.
Owner:HUZHOU SINY LABEL MATERIAL
Process and equipment for treating and reusing waste water from lead-zinc ore beneficiation
ActiveCN109502900BDoes not affect the beneficiation indexImprove the effect of biological treatmentWaste water treatment from quariesWater contaminantsBiological filterAnaerobic filter
The invention discloses a process method and equipment for the treatment and reuse of lead-zinc mine beneficiation wastewater. The present invention is a typical reuse treatment process for lead-zinc beneficiation wastewater, and its process flow is: oxidation of reducing substances in beneficiation wastewater and destruction of refractory organic matter - stirring aeration - adjusting alkalinity - adding bacteria and N, P - anaerobic filter - aerobic filter - effluent. Aiming at the characteristics that foaming organic matter in waste water is difficult to degrade, the invention uses anatase-scandium metal to catalyze ozone oxidation to change the material structure, oxidize part of its carbon ends to hydroxyl, and strengthen waste water through anaerobic and aerobic biological filters Biological treatment effect, reduce effluent COD. It can solve the current problem of strong foaming after the treatment of lead-zinc beneficiation wastewater, realize the purpose of not changing the fixed beneficiation agent system, using the treated water for beneficiation, and not affecting the beneficiation index.
Owner:广东中金岭南环保工程有限公司
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