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69results about How to "Guaranteed flux" patented technology
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Garbage compression leachate comprehensive waste water treatment device and technological method
ActiveCN104529093AIncreased hydraulic shear strengthStable fluxWater/sewage treatment by centrifugal separationSludge treatment by de-watering/drying/thickeningWater storage tankFiltration
The invention provides a garbage compression leachate comprehensive waste water treatment device and technological method. The device comprises a grille, a waste water storage tank, an ultrasonic Electro-Fenton reactor, an intermediate water storage tank, an ultrasonic vibration film reactor and a vortex vibration film filtration system, wherein the grille, the waste water storage tank, the ultrasonic Electro-Fenton reactor, the intermediate water storage tank, the ultrasonic vibration film reactor and the vortex vibration film filtration system are sequentially connected. The device further comprises a sludge dewatering drying pool which is connected with a vortex energy-saving heat pump flash evaporator of the vortex vibration film filtration system and provided with a circuit connected with the ultrasonic vibration film reactor. Waste water sequentially flows through the grille, the waste water storage tank, the ultrasonic Electro-Fenton reactor, the intermediate water storage tank, the ultrasonic vibration film reactor and the vortex vibration film filtration system for redox reactions and filtration. The device is high in operability, high in regeneration cycle use rate and low in operation cost.
Owner:樊利华
External membrane bioreactor system for sewage treatment and method thereof
InactiveCN101041510ACheap to manufactureSolve the blockageTreatment using aerobic processesTreatment with aerobic and anaerobic processesFiberImpeller
The invention discloses a external membrane biological reactor system, which comprises the following steps: including aero-tank and film component; making aero-tank include waste water feed inlet, mixed anoxia section, diving impeller, dividing wall, aerobic section, conveying water pipe and aerated pipe; making film component include box shell and separating film; setting sludge return pipe on the side upper of box shell; connecting with mixed anoxia section of aero-tank; setting filtering medium outlet on the top of box shell; setting blow pipe inlet port and waste water inlet port on the bottom of shell; external connecting air supply with blow pipe inlet port; interconnecting waste water inlet with aerobic section conveying pipe; making separating film with hollow fiber film fibril. This reactor system can remove by man and does not need overhang with cheap cost.
Owner:广州美能材料科技有限公司
Chemical cleaning method of hollow fiber membrane and device thereof
InactiveCN101829505AGuaranteed fluxImprove stabilitySemi-permeable membranesFiberHollow fibre membrane
The invention discloses a chemical cleaning method of a hollow fiber membrane, comprising the following steps of: (1) preparing a composite chemical cleaning agent with the active chlorine concentration of 10-13%; and (2) back washing the hollow fiber membrane on line by adopting the compounded composite chemical cleaning agent. The invention also discloses a chemical cleaning device of the hollow fiber membrane, which is provided with a composite chemical cleaning agent storage tank and a back washing system comprising a back washing pump; and the upper part of the storage tank is provided with a filling pipe, an electromagnetic valve and an air release valve. The invention can effectively keep the membrane flux of a membrane bioreactor and is matched with the running characteristic of a membrane bioreactor process. The invention solves the problems of large impact on microorganisms in a system, high labor intensity caused by needing to hang a membrane assembly out for cleaning and the like, and difficult running management, can integrate a membrane assembly cleaning system and the membrane bioreactor to improve the control level of automation. By adding a surfactant and regulating the pH value of the system to be greater than 13, the stability of a sodium hypochlorite solution can be improved.
Owner:JIANGXI JDL ENVIRONMENTAL PROTECTION CO LTD
Method for preparing structure and performance controllable super nanofiltration membrane
InactiveCN104474927AImprove hydrophilicityIncrease water fluxSemi-permeable membranesElectricityHigh flux
The invention provides a method for preparing a structure and performance controllable super nanofiltration membrane. The method comprises the following steps: a pre-treatment step of a base membrane, a preparation step of an aqueous phase solution, a preparation step of an oil phase solution and a treatment step of the base membrane. According to the preparation method provided by the invention, a loose polyamide desalinated layer with adjustable height, electric neutrality on the surface and a high hydrophilic structure is formed by controlling the proportion and concentration of a reaction monomer, the active environment and temperature of the reaction monomer and the molecular weight and alcoholysis degree of a polymer and the like, so that the flux of the membrane is obviously improved. Meanwhile, the charge property of the membrane surface is remarkably reduced, and the high flux anti-pollution super nanofiltration membrane is prepared. The desalinization ratio of the prepared super nanofiltration membrane on NaCl is 10-90% and the effective reject rate for organic molecules with the molar weight ranging from 400 to 5000 is over 90% while high flux is guaranteed.
Owner:BEIJING ORIGIN WATER PURETECH CO LTD
Aerosol product, preparation method and application
ActiveCN109691697AImprove cooling effectReduce the temperatureCigar manufactureTobacco smoke filtersParticulatesEngineering
An aerosol product comprises an aerosol atomizing unit and a smoke cooling unit located downstream of the smoke flow direction produced by the aerosol atomizing unit; the aerosol product further comprises a filtering unit located downstream of the flow direction of smoke passing the smoke cooling unit or comprises a hollow unit located upstream of the flow direction of smoke passing the smoke cooling unit. The structure is formed by particle aggregation and contains gaps allowing cigarette smoke to pass, and the gaps allowing the cigarette smoke to pass are three-dimensional and non-linear. The structure is bar-type. When cigarette aerosol passes the cooling unit, the smoke is endowed with smooth channels. A porous substance has through holes, so that low suction resistance can be kept while large smoke cooling area is provided, smoke flux is guaranteed, and experience of a cigarette consumer is improved.
Owner:NANTONG CELLULOSE FIBERS CO LTD +2
Primer for simultaneously detecting diversified respiratory viruses on basis of melting curve processes and single tube and application of primer
InactiveCN106834546AAvoid pollutionSimple and fast operationMicrobiological testing/measurementDNA/RNA fragmentationFluorescenceRespiratory virus
The invention discloses a primer for simultaneously detecting diversified respiratory viruses on the basis of melting curve processes and a single tube, and belongs to the field of technologies for detecting nucleic acid. The primer comprises reverse transcription primers shown as SEQ ID NO.1-8, amplification primers shown as SEQ ID NO.9-26, amplification starting universal primers shown as SEQ ID NO.27-28 and molecular beacon probes shown as SEQ ID NO.29-35. Fluorescence groups and quenching groups are arranged at two ends of each molecular beacon probe. The primer has the advantages that the primer is based on Tem-PCR (target enriched multiplex-polymerase chain reaction) technologies and melting curve analysis, gene sequences of the diversified viruses are compared in gene sequence libraries of NCBI (national center for biotechnology information), specific primers and the molecular beacon probes are arranged at conservative sites by means of designing, accordingly, 7 types of respiratory viruses can be simultaneously detected by the single tube, and the primer is easy to operate and convenient to apply.
Owner:HANGZHOU D A GENETIC ENG
Primers for single-tube simultaneous detection of parainfluenza viruses and coronaviruses based on melting curve assay and application of primers
InactiveCN106868213AAvoid pollutionSimple and fast operationMicrobiological testing/measurementAgainst vector-borne diseasesCoronavirus 229EFluorescence
The invention discloses primers for single-tube simultaneous detection of parainfluenza viruses and coronaviruses based on melting curve assay, and belongs to the technical field of nucleic acid detection. Sequences of reverse transcription primers for detecting various pathogens are shown as SEQ ID NO: 1-7; sequences of tailed specific primers and universal primers are shown as SEQ ID NO: 8-23; and probes include molecular beacon probes which are provided with fluorescence groups and quenching groups, and sequences of the molecular beacon probes are shown as SEQ ID NO: 24-30. According to the method which is capable of simultaneously detecting parainfluenza virus types 1-3 and coronaviruses 229E, NL63, OC43 and HKU1, on the basis of Tem-PCR (target enriched multiplex PCR) technology and melting curve assay, single-tube simultaneous detection of seven respiratory viruses can be achieved by comparing gene sequences of various viruses in a gene sequence library of NCBI and by virtue of the specific primers and the molecular beacon probes which are designed at conserved sites; and the primers are simple to operate and convenient to apply.
Owner:CHONGQING DIAN SRAB CENT FOR CLINICAL LAB CO LTD
Dirt cleaning agent for reverse osmosis membrane
InactiveCN108031296AEfficient removalImprove cleaning efficiencySemi-permeable membranesSulfonateReverse osmosis
The invention relates to a dirt cleaning agent for a reverse osmosis membrane. The dirt cleaning agent for the reverse osmosis membrane comprises the following components in percentage by weight: 43 to 50 percent of an anionic surfactant, 0.8 to 1 percent of a metal complexing agent, 3.8 to 4.5 percent of an anti-deposition agent, 17.6 to 20.2 percent of lauryl diethanolamine, 8 to 8.5 percent ofsodium xylene sulfonate, 3.5 to 4.0 percent of sodium chloride, 0.4 to 0.6 percent of sodium sulfate, 0.8 to 1.0 percent of a sterilizing agent and the balance of deionized water. According to the dirt cleaning agent for the reverse osmosis membrane, which is provided by the invention, the anionic and nonionic surfactant is added in the cleaning agent, so the cleaning efficiency of the cleaning agent is greatly improved; the membrane flux can be maintained and the life of the membrane can be prolonged; the surfactant which the cleaning agent contains can permeate rapidly, so dirt can be removed effectively; the sterilizing agent DBNPA is added, so that microorganisms are killed and cleaning is realized; and due to the excellent bacteriostatic function of the sterilizing agent, the microorganisms are not liable to grow continuously and damage to the membrane caused by multi-time cleaning is avoided.
Owner:XINJIANG DELAND
Method for authenticating cucumber variety authenticity and SSR primer group special for method
ActiveCN107988413AHigh polymorphismGood repeatabilityMicrobiological testing/measurementDNA/RNA fragmentationAgricultural scienceGermplasm
The invention discloses a method for authenticating cucumber variety authenticity and an SSR primer group special for the method. The SSR primer group provided by the invention consists of 32 primers;the nucleotide sequences of the 32 primers are as shown in sequence 1 to sequence 3 in a sequence table. The SSR primer group provided by the invention has the advantages of high polymorphism, high repeatability, stable and reliable marking, convenience in statistics and the like. According to the method for authenticating the cucumber variety authenticity and the SSR primer group special for themethod, a DNA fingerprint database for authenticating the cucumber variety authenticity on the basis of high-throughput sequencing is also established and can be used for performing early authenticating on a cucumber variety in a seed or young seeding stage, so that the authenticity of the variety is ensured, the rights and interests of a producer and a breeder are practically protected, and technical support is provided for cucumber germplasm resource and new variety protection. Therefore, the method for authenticating the cucumber variety authenticity and the SSR primer group special for the method have a broad application prospect.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
Reverse osmosis water purifier with pre-heating system
InactiveCN102671545AGuaranteed fluxImprove water production efficiencyWater/sewage treatment bu osmosis/dialysisReverse osmosisSolenoid valveReverse osmosis
The invention provides a reverse osmosis water purifier with a pre-heating system. The reverse osmosis water purifier comprises a water inlet (1), a reverse osmosis filtering core (5), a concentrated water solenoid valve (6), a concentrated water outlet (7) and a pure water outlet (8), wherein the water inlet end of the reverse osmosis filtering core (5) is connected with the water inlet (1); the concentrated water opening of the reverse osmosis filtering core (5) is connected with the concentrated water outlet (7) through the concentrated water solenoid valve (6); and the pure water opening of the reverse osmosis filtering core (5) is connected with the pure water outlet (8). The reverse osmosis water purifier is characterized in that the pre-heating system (2) is connected between the water inlet (1) and the reverse osmosis filtering core (5); the pre-heating system (2) can keep the temperature of water entering into a reverse osmosis membrane in a range of 20-30 DEG C, and ensures the flux of the reverse osmosis membrane, so that the water making efficiency of the reverse osmosis water purifier is kept at a higher level. Meanwhile, the reverse osmosis water purifier provided by the invention has the advantages of simple and reasonable structure and low cost, and is convenient to combine.
Owner:MIDEA GRP CO LTD +1
Anti-biological pollution composite membrane modified by using quinolone signal molecule inhibitor and preparation method thereof
ActiveCN110124541AGrowth inhibitionGuaranteed fluxSemi-permeable membranesMembranesSignalling moleculesSolvent
The invention discloses an anti-biological pollution composite membrane modified by using quinolone signal molecule inhibitor and preparation method thereof, and belongs to the field of membrane method water treatment. The preparation method comprises the following steps: 1) subjecting a quinolone (PQS) signal molecule inhibitor methyl anthranilate (MA) and a nano-material graphene oxide (GO) to adehydration condensation reaction so as to prepare a stable nano-composite material GO / MA; 2) carrying out blending treatment, and adding the GO / MA nano composite material and polyvinylidene fluoride(PVDF) into a solvent to prepare a membrane casting solution; and 3) carrying out phase conversion treatment to prepare the GO / MA-PVDF modified composite membrane. A series of optimization experiments prove that the water flux of the GO / MA-PVDF composite membrane prepared by the invention is obviously improved to 150 L / m<2>*h*bar. The flux reduction amplitude of the modified GO / MA-PVDF compositemembrane is reduced by 27% compared with that of a PVDF membrane, the contents of biological membrane component protein and polysaccharide on the surface of the modified membrane are reduced by 67% and 39% respectively, and the number of cells is reduced by 72%. The results prove that the modified composite membrane has biological pollution resistance.
Owner:BEIJING NORMAL UNIVERSITY
Device for increasing concentration multiple of membrane and concentration of concentrated solution and use method
PendingCN110064305AImprove permeabilityIncrease the concentration factorUltrafiltrationReverse osmosisEngineeringMembrane configuration
The invention relates to a device for increasing the concentration multiple of a membrane and the concentration of a concentrated solution. The device comprises a clean liquid series connection section or a concentrated liquid series connection section or a combination of the clean liquid series connection section and the concentrated liquid series connection section. The clean liquid series connection section is formed by using clean liquid outlet pipes for sequentially connecting multi-stage filter tanks in series and / or in parallel, wherein the last-stage filter tank is connected with a clean liquid outlet system through one clean liquid outlet pipe, and except for the first-stage filter tank, a concentrated liquid outlet end of the filter tank at each stage returns liquid to a liquid inlet end of the filter tank at a previous arbitrary stage through a concentrated liquid returning pipe. The concentrated liquid series connection section is formed by using concentrated liquid outletpipes for sequentially connecting multi-stage filter tanks in series or in parallel, the last-stage filter tank is connected with a concentrated liquid outlet system through a concentrated liquid outlet pipe, a clean liquid outlet end of the last-stage filter tank returns liquid to a liquid inlet end of the filter tank at a previous arbitrary stage through a clean liquid returning pipe, and the clean liquid outlet end of each filter tank at the remaining stages discharges the liquid to the clean liquid outlet system through a clean liquid outlet pipe. A filter membrane is arranged in the filter tank at each stage in the clean liquid series connection section and the concentrated liquid series connection section.
Owner:成都泓润科技有限公司
Double-membrane wastewater treatment system based on fully-automatic ultrafiltration and reverse osmosis (RO) and a method
PendingCN108002566AGuaranteed fluxGuaranteed lifeWater treatment parameter controlSpecific water treatment objectivesUltrafiltrationWater quality
The invention discloses a double-film wastewater treatment system based on fully-automatic ultrafiltration and reverse osmosis (RO), belonging to the technical field of sewage treatment. The double-film wastewater treatment system provided by the invention comprises a PLC control system, a raw liquid pool, a clear liquid storage pool, a concentrated liquid pool, a circulation cleaning device and acirculation device, wherein the circulation device comprises a first-stage circulation loop, a second-stage circulation loop, a third-stage circulation loop and a fourth-stage circulation loop whichare in sequential connection along the flow direction of a raw liquid; each circulation loop comprises a circulating water tank and a filter membrane device; the interior of the circulation cleaning device comprises a cleaning solution which realizes cleaning in an order of the fourth-stage circulation loop, the third-stage circulation loop, the second-stage circulation loop and the first-stage circulation loop. The invention discloses a treatment method at the same time. The treatment method comprises four steps. According to the invention, fully-automatic one-stage ultrafiltration and three-stage reverse osmosis (RO) are realized; and through pure physical treatment of a waste solution, the quality of treated water reaches the requirements of industrial reuse. According to the invention,no addition of chemical reagents is needed; produced water can be recycled; and the treatment method is easy to implement.
Owner:刘宁
Filter element assembly and water purifying device with same
InactiveCN104828882ASolve the problem of life cycle instabilityHigh trafficWater/sewage treatmentMultistage water/sewage treatmentWater sourceWater pipe
The invention discloses a filter element assembly and a water purifying device with the same. The filter element assembly comprises multi-group filter elements connected in series, wherein each filter element group comprises a plurality of filter elements connected in parallel; the water purifying device comprises the filter element component, a membrane filter element, a concentrated water pipe and a pure water pipe; the uppermost filter element in the filter element assembly is suitable for being connected with a water source; the inlet of the membrane filter element is connected with the outlet of the filter element assembly; the membrane filter element is further provided with a pure water outlet and a concentrated water outlet; the concentrated water pipe is connected with the concentrated water outlet, and the pure water pipe is connected with the pure water outlet. According to the filter element assembly disclosed by the invention, the filter element groups are formed through the parallel connection of the plurality of same filter elements, the water purifying flux and the water purifying amount of the water purifying device are increased in a mode of connecting the plurality of filter element groups in series, the flux of the water purifying device and the stability of the service life of the filter element are guaranteed, and the large flux requirement of a apparatus is satisfied.
Owner:FOSHAN MIDEA CHUNGHO WATER PURIFICATION MFG +1
Method and device for comprehensively treating sewage through inorganic membrane, filler and fluid
InactiveCN106927561AIncrease the areaModerate hardnessWater contaminantsBiological treatment apparatusAutomatic controlAutomated control system
The invention discloses a method for comprehensively treating sewage through an inorganic membrane, filler and fluid. The method comprises the steps that partition plates provided with diversion holes are used for dividing a treatment filter tank into an anaerobic zone, a facultative aerobic zone, an aerobic zone and an auxiliary zone which are communicated with one another, an automatic control system, a water producing system, an aeration system and a dosing device are arranged in the auxiliary zone, porous honeycomb filler is arranged in the anaerobic zone and the facultative aerobic zone to serve as carriers of biocenoses, a nano plate ceramic membrane module is arranged in the aerobic zone, by means of cooperation of the automatic control system and the water producing system, the dissolved oxygen concentrations of the anaerobic zone, the facultative aerobic zone and the aerobic zone are adjusted and controlled, foam sponges or foam ceramic bodies are put into the aerobic zone, the biocenoses suspended in a water body have the carriers for implantation propagation, and degradation of organic substances in sewage is better promoted; in addition, the organic foam sponges can take random movement along with bubbles and flow to rub and clean dirt on a plate ceramic membrane, the speed of membrane contamination is reduced, the backwashing and chemical cleaning time is prolonged, and the flux of the plate ceramic membrane is guaranteed.
Owner:JIANGXI BOCENT TEC CO LTD
Multi-parameter subsection optimized novel rotating disc extraction column
InactiveCN106621459AImprove mass transfer efficiencySuppression of axial backmixingLiquid solutions solvent extractionSeparation processEngineering
The invention discloses a multi-parameter subsection optimized novel rotating disc extraction column. The multi-parameter subsection optimized novel rotating disc extraction column comprises a column body, a fixing ring, a rotating shaft, rotating discs, a rotating mesh baffle plate, a distributor and an expanding section with structured packing, wherein the rotating discs, the rotating mesh baffle plate and the structured packing can determine the quantity, the size and surface spraying treatment according to the requirements of a separation process; the rotating mesh baffle plate is arranged between the two rotating discs, is fixed on the rotating shaft, and is positioned on the same horizontal plane with the fixing ring; the ratio of the diameter of the rotating mesh baffle plate to the diameter of each rotating disc is 1 to (0.7 to 1.0); holes arrayed in a concentric circle form are formed in the rotating mesh baffle plate; the diameters of the holes are 10 to 30mm; the sizes of the holes can be uniform in diameter, or the holes are multi-aperture, and the aperture ratio is 25 to 60 percent. According to the multi-parameter subsection optimized novel rotating disc extraction column disclosed by the invention, structural parameters such as the diameters of the rotating discs of the extraction column, the diameter of the rotating mesh baffle plate, the space of the fixing ring and the inner diameter of the fixing ring are adjusted, and the rotating mesh baffle plate with multiple apertures and variable aperture ratio are additionally added, so that the efficiency of the extraction column is effectively improved.
Owner:TSINGHUA 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
Centrifugal geotechnical test soil fast-drying device
InactiveCN111322836ASimple structureStrong centrifugal forceDrying solid materials without heatFiltration circuitsSoil scienceElectric machinery
The invention belongs to drying equipment, and particularly discloses a centrifugal geotechnical test soil fast-drying device which comprises a support. The support is welded and fixed on the outer wall of a centrifugal dehydrator, a control box, a drying box and a hot air blower are fixed on the upper surface of the support, the hot air blower is connected with the drying box through an air inletpipe, the drying box is connected with the centrifugal dehydrator through a hot air pipe, a centrifugal barrel is arranged in the centrifugal dehydrator, the centrifugal barrel is fixed inside the centrifugal dehydrator through an upper fixing plate and a lower fixing plate, the top of the centrifugal dehydrator is provided with a stepping motor, the output end of the stepping motor is connectedwith the top end of the centrifugal barrel, a stirring device is arranged in the centrifugal barrel, the stirring device is composed of a stirring shaft and a spiral stirring fan blade, and the tail end of the centrifugal dehydrator is further fixedly provided with an exhaust fan. The device is high in drying speed, high in treatment precision and easy to operate.
Owner:中国机械设备工程股份有限公司 +1
Efficient device for recovering oxalic acid from titanium oxalate waste liquid and recovery method thereof
PendingCN113045054AEffective filteringAchieve recyclingWater/sewage treatment bu osmosis/dialysisMultistage water/sewage treatmentOXALIC ACID DIHYDRATEWastewater
The invention discloses an efficient device for recycling oxalic acid from titanium oxalate waste liquid and a recycling method thereof. The efficient device comprises an oxalic acid waste liquid recycling mechanism, a first-stage filtering mechanism, a second-stage filtering mechanism and a nanofiltration mechanism which are sequentially connected through a pipeline, and a booster pump is arranged between the oxalic acid waste liquid recycling mechanism and the first-stage filtering mechanism; the first-stage filtering mechanism is connected with the second-stage filtering mechanism through a pipeline; an NF high-pressure pump is arranged between the second-stage filtering mechanism and the nanofiltration mechanism; and the first-stage filtering mechanism comprises a bag type filter, the bag type filter is connected with the booster pump through a pipeline, and the second-stage filtering mechanism comprises a security filter. Through cooperative use of a sedimentation tank, the booster pump, the bag filter, the security filter, the NF high-pressure pump and the NF device, wastewater generated after acid pickling can be effectively filtered, oxalic acid is recycled, the treatment amount of the wastewater is greatly reduced, and meanwhile, a large amount of economy is saved through recycling of the oxalic acid.
Owner:西安泰瑞环保技术有限公司
Hollow-fiber composite biological membrane
InactiveCN107789993AWith normal useImprove permeabilitySemi-permeable membranesSpecific water treatment objectivesMicroorganismPlasticizer
The invention discloses a hollow fiber composite biomembrane. The hollow fiber composite biomembrane is in the shape of a tube and sequentially includes an outer layer of a hollow fiber membrane, an outer layer of graphene oxide, a biofilm layer, an inner layer of graphene oxide and a hollow fiber membrane. Fiber membrane inner layer, the section of described biofilm layer is jagged, is provided with plasticizer outer layer between described graphene oxide outer layer and biofilm layer, between described biofilm layer and graphene oxide inner layer Equipped with an inner layer of plasticizer, the hollow fiber composite biomembrane can improve the filtering effect on algae, bacteria and microorganisms, and take into account the membrane flux and oxidation resistance.
Owner:SUZHOU BEST COLOR ENVIRONMENTAL PROTECTION NANOTECH CO LTD
Method for extracting soybean protein isolate from soybean whey wastewater
The invention discloses a method for extracting soybean protein isolate from soybean whey wastewater. The method for extracting the soybean protein isolate from the soybean whey wastewater comprises the following steps: step one, regulating the pH value of the soybean whey wastewater to 6-8.5 to obtain soybean whey wastewater with regulated pH value; step two, heating the soybean whey wastewater with regulated pH value obtained in the step one to 65-85 DEG C; step three, separating and concentrating the heated soybean whey wastewater obtained in the step two through a 0.1 mu m ceramic membraneseparation system to obtain an intercepted concentrate; step four, adding purified water into the intercepted concentrate obtained in the step three, and carrying out dialyzing so as to obtain a dialyzed concentrate; and step five, sterilizing the dialyzed concentrate solution obtained in the step four, and carrying out drying so as to obtain the soybean protein isolate powder. By using the the ceramic membrane with the pore diameter of 0.1 mu m, the method can concentrate the soybean whey wastewater to 20-50 times at a high flux no lower than 200 L / (m< 2 >* h), and intercept 100% of the soybean protein isolate in the soybean whey wastewater, thereby increasing the content of the soybean protein isolate in the extract by 48% or above.
Owner:HEZE BRANCH QILU UNIV OF TECH(SHANDONG ACAD OF SCI
Ceramic flat membrane for oily sewage treatment and preparation method thereof
ActiveCN106861456BReduce cloggingGuaranteed fluxSemi-permeable membranesMembranesFilm materialPollution
The invention discloses a ceramic flat plate film for treating oil-containing wastewater and a preparation method thereof, and belongs to the field of inorganic films. The preparation method specifically comprises the following steps of uniformly mixing organic acid, water and ethyl alcohol, and adding silicate to react; adding fluoroalkyl siloxane to react, so as to obtain modified sol; impregnating the ceramic flat plate film into the obtained modified sol, and drying. The preparation method has the advantages that by adopting the manner of impregnating into the low-concentration modified sol by ultrasonic waves, the hydrophilic and oleophobic properties of a ceramic flat plate film material are improved, and the hydrophilic and oleophobic properties of the film material are enhanced; the technology is simple, economical and efficient, and the purifying efficiency and anti-pollution ability of the film material to the wastewater with serious oil dirt are favorably improved.
Owner:SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
Concentrating led bifocal lens module
ActiveCN106051585BEffective temperature controlImprove luminous flux stabilityVehicle headlampsLighting heating/cooling arrangementsFree formOptoelectronics
Owner:CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST CO LTD
GO-PSF composite film selection layer and preparation method and application thereof
PendingCN112604518AImprove hydrophilicityReduce pollutionMembranesSemi-permeable membranesThin membraneGlycerol
The invention discloses a preparation method of a GO-PSF composite membrane selection layer, which comprises the following steps: adding polysulfone particles into a dimethylacetamide solution, adding GO particles, carrying out ultrasonic treatment, and carrying out magnetic stirring until the membrane casting solution is grey and transparent; soaking the base membrane in glycerol, and storing for later use; taking out the base membrane, removing redundant glycerol on the surface of the membrane, and keeping the surface of the membrane dry; and forming a membrane on the surface of the treated base membrane by using the membrane casting solution by using a phase inversion method, cleaning, and storing in deionized water. According to the GO-PSF composite film prepared by the invention, the hydrophilicity, the antibacterial property and the anti-pollution capability are improved, and compared with a GO-PSF blended film, the cost is reduced.
Owner:CHANGZHOU UNIV
High-efficiency purifying method of organic waste water
ActiveCN101654306AExcellent effectAdaptableWater/sewage treatment by ion-exchangeMultistage water/sewage treatmentPollutantChemistry
The invention discloses a high-efficiency purifying method of organic waste water. The waste water flows into a reaction tank after being pre-treated, a film assembly is arranged in the reaction tank;adsorbing resin is added in the reaction tank, the waste water is evenly mixed with the resin under stirring to be in a fluidization state, stirring is continuously carried out until the adsorbable materials in the waste water are adsorbed, and then the film assembly is started to filter and exhaust water. The method has excellent separation effect and high separation efficiency, and is suitablefor the treatment of a large amount of waste water with resolvable pollutants; and absorption and separation can be finished in a same space.
Owner:YUE HAI ENVIRONMENTAL PROTECTION TECH CONSULTS SERVICE CO LTD
Modification method for improving chlorine resistance of polyacrylonitrile forward osmosis membrane
ActiveCN112870994AImprove chlorine resistanceIncreased electron cloud densitySemi-permeable membranesGeneral water supply conservationPolymer scienceMeth-
The invention belongs to the technical field of water treatment, and discloses a modification method for improving chlorine resistance of a polyacrylonitrile forward osmosis membrane. The method comprises the steps: dissolving polyacrylonitrile in an organic solvent N-methyl pyrrolidone, adding a pore-foaming agent, putting the mixture into an ultrasonic cleaning machine for degassing treatment after the mixture is completely dissolved, and removing gas generated in the stirring process to form a membrane casting solution; pouring the membrane casting solution on a glass plate, scraping the membrane by using a membrane coating device, then immediately putting the membrane into a deionized water coagulating bath, and obtaining a polyacrylonitrile support membrane by using an immersion-precipitation phase inversion method; and preparing a polyamide functional layer by virtue of an interfacial polymerization method, then cleaning with n-hexane, and removing unreacted 1,3,5-trimesoyl chloride on the surface, so as to obtain the cyclohexylamine modified polyacrylonitrile forward osmosis membrane. On the premise of ensuring the flux of the polyacrylonitrile forward osmosis membrane, the chlorine resistance of the membrane is greatly improved.
Owner:NORTHEASTERN UNIV
Gene sequencing chip and gene sequencing device
ActiveCN110387321AEasy loadingLoad suitable forBioreactor/fermenter combinationsBiological substance pretreatmentsWhole genome sequencingHigh flux
The invention provides a gene sequencing chip. According to the gene sequencing chip, grooves are formed in a cover, and 4 channels or 2 channels are formed between the grooves and a silicon chip, sothat the unit flux is high; the silicon chip is provided with a plurality of reaction chambers, each reaction chamber can capture and fix a DNA molecule, so that the DNA molecule cannot move along with fluid, and high-flux optical sequencing is realized; the 4-channel chip not only can guarantee data flux and save cost, but also can separately load different test piece samples, and can meet the applications of complete genome sequencing, complete exon sequencing, transcriptome sequencing and the like; the test piece consumption and the reagent consumption of the 2-channel chip are reduced by half, so that the 2-channel chip can be used for quick detection of small and short test pieces; and besides, own positioning holes and a clamping hole protecting frame are arranged on the periphery ofthe chip, so that the chip can be accurately positioned, a clamping hole can also be stretched to enable the protecting frame to be in micro deformation, and the chip is convenient to load; and the assembling production efficiency is high, and the gene sequencing chip is suitable for batch large-scale production.
Owner:MGI TECH CO LTD
White smoke heating eliminating device and method for smoke of fossil-fuel power station
InactiveCN109631071ALittle change in resistanceLow investment costLighting and heating apparatusPower stationTest measurement
The invention discloses a white smoke heating eliminating device and method for smoke of a fossil-fuel power station. The white smoke heating eliminating device comprises a smoke duct for dischargingthe smoke after being desulfurized and is characterized by further comprising a sleeve heater which is arranged on the outer side wall of the smoke duct, and steam connecting ports for introducing steam and drainage ports for discharging condensed water are arranged on the sleeve heater. The sleeve heater which is arranged on the outer side wall of the smoke duct communicates with A low-pressure air exhaust air source introduced to a turbine through the sleeve heater which is arranged on the outer side wall of the smoke duct in a sleeving mode enables the smoke to be heated up to achieve the purpose of completely eliminating white smoke. According to the white smoke heating eliminating device and method for the smoke of the fossil-fuel power station, the invest cost is reduced by above 90%and does not exceed one tenth of the invest cost of a frequently-used MGGH system, the internal structure of the smoke duct is not influenced, and the changes of resistance of the smoke are tiny according to testing measurement. According to the white smoke heating eliminating device and method for the smoke of the fossil-fuel power station, low-pressure air exhaust of the turbine is adopted as aheating air source, steam condensed water is fully used, and the operating cost of the white smoke heating eliminating device and method is far lower than the operating cost of the frequently-used MGGH system.
Owner:李申强
Water-saving type reverse-osmosis pure water production method
ActiveCN105198128AGuaranteed fluxWater/sewage treatment bu osmosis/dialysisMultistage water/sewage treatmentWater dischargeFiltration
The invention relates to a water-saving type reverse-osmosis pure water production method and belongs to the technical field of water treatment. The method comprises steps as follows: firstly, tap water is filtered through quartz sand, and produced water obtained through sand filtration is sent to an adsorption filter material to be filtered; water discharged from the adsorption filter material is sent to a reverse-osmosis membrane to be filtered; the adsorption filter material comprises components as follows: volcanic rock, modified activated carbon, activated aluminum oxide, kaolin clay and cation exchange resin. The tap water is pretreated through filter sand, and throughput of the reverse-osmosis membrane can be kept under the condition that smaller discharge of reverse-osmosis concentrated water is kept.
Owner:工大环境股份有限公司
Polyvinylidene fluoride hollow fiber microfiltration membrane and preparation method thereof
ActiveCN113117533AGuaranteed rigidityNot easy to crushSemi-permeable membranesGeneral water supply conservationFiberMicrofiltration membrane
The invention discloses a polyvinylidene fluoride hollow fiber microfiltration membrane and a preparation method thereof, the microfiltration membrane comprises polyvinylidene fluoride and polytrifluorochloroethylene, and the mass ratio of the polyvinylidene fluoride to the polytrifluorochloroethylene is 100: (5-40). The porosity of the microfiltration membrane is greater than 80%; the aperture of at least 70% of the microfiltration membranes is between 0.1 [mu] m and 0.2 [mu] m, the aperture of less than 15% of the microfiltration membranes is between 0.01 [mu] m and 0.1 [mu] m, and the aperture of less than 15% of the microfiltration membranes is between 0.2 [mu] m and 0.3 [mu] m. The microfiltration membrane has the advantages of high strength, high water flux, excellent chemical resistance, weather resistance and oxidation resistance, environmental friendliness and the like.
Owner:ZHEJIANG RES INST OF CHEM IND CO LTD +1
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