69results about How to "Guaranteed flux" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.