94 results about "Osmosis" patented technology

The invention discloses a method and equipment for recovering acetonitrile waste liquid. The method comprises the following steps: sequentially carrying out permeation, oxidation, extraction, rectification and adsorption on the acetonitrile waste liquid to obtain recovered acetonitrile. According to the invention, water, salt and acetonitrile can be effectively separated, various trace impurities in acetonitrile are removed, and a high-purity acetonitrile product is obtained through recovery.

The present invention discloses a pure water penetration system for solving the problem of excessively high TDS of the first glass of water, which includes a raw water passage, a concentrated water passage, a pure water passage, a reverse osmosis filter element, a pretreatment filter element, and a penetration tank; a booster pump is provided between the pretreatment filter element and the RO membrane filter element, and an inlet solenoid valve is provided behind the booster pump. A throttle valve is provided on the concentrated water passage, and a flushing solenoid valve is connected in parallel with the throttle valve; a penetration tank is connected to the pure water passage, and a check valve and a high-pressure switch are provided on the pure water passage and connected to the water outlet faucet. The high-pressure switch controls the pressure of the penetration tank. By setting the flow rate of the waste water throttle valve to be not greater than the penetration flow rate of the penetration tank, after the machine stops working, the pressures before and after the RO membrane tend to be dynamically balanced, and the pressure is gradually reduced to the atmospheric pressure state through the pressure relief of the throttle valve. When the pure water in the penetration tank penetrates through the RO membrane, it gradually displaces the concentrated water in front of the membrane, thereby achieving the effect of soaking the RO membrane with pure water, solving the problem of excessively high TDS of the first glass of water during the next water production, and the pure water soaking the membrane also plays a role in prolonging the membrane life.

The invention relates to the technical field of odor-absorbing towels, in particular to a bacillus subtilis-based biological enzyme odor-absorbing towel and a preparation method thereof.The bacillus subtilis-based biological enzyme odor-absorbing towel comprises the following four layers: a surface layer, a breathable anti-reverse-osmosis non-woven fabric or nano-silver coating material, the pore diameter of the surface layer is smaller than or equal to 0.1 micron, and the surface layer is used for gas adsorption and liquid blocking; the biological enzyme filter membrane layer is formed by loading bacillus subtilis spores (greater than or equal to 108 CFU / g) and immobilized enzymes (lipase and protease) by a sodium alginate / chitosan composite hydrogel membrane; the specific surface area of the adsorption layer is larger than or equal to 1200 m < 2 > / g, the H2S adsorption capacity of the adsorption layer is larger than or equal to 200 mg / g, and the adsorption layer is used for pre-adsorbing high-concentration sulfides; the bottom layer is a microporous PE leakage-proof film, and the humidity is maintained at 60%-80% RH. According to the invention, peculiar smell molecules can be effectively degraded, liquid reverse osmosis can be prevented, and good air permeability and humidity regulation and control capability can be realized.

A target palladium membrane selection method, a hydrogen-related reaction execution method, and an osmosis diffusion rate determination method and system are provided. The selection method includes determining target lattice parameters of the target palladium membrane, and target metal components and proportions thereof according to a target osmosis diffusion rate of hydrogen gas passing through a target palladium membrane, a target thickness of the target palladium membrane, and a corresponding relationship between the permeation diffusion rate of hydrogen gas passing through a sample palladium membrane and a specific parameter group of the sample palladium membrane; and selecting as a target palladium membrane a palladium membrane having the target lattice parameters, the target metal components and proportions thereof, and the target thickness.

The application discloses a multifunctional biological imbibition agent and a preparation method and application thereof. The preparation method of the multifunctional biological imbibition agent comprises the following steps: (S1), alkylization reaction to obtain alkyl naphthalene; (S2), chloromethylation reaction to obtain halomethyl alkyl naphthalene; (S3), halogen alkyl nucleophilic substitution reaction to obtain hydroxymethyl alkyl naphthalene; and (S4), esterification reaction to obtain the multifunctional biological imbibition agent. The application further discloses application of the multifunctional biological imbibition agent as an imbibition agent in shale oil reservoir oil extraction. The application has the following advantages: (1) the reservoir adsorption amount is small, but the good wetting reversal characteristic is still maintained, and the emulsification is weak; (2) the high-temperature resistance is strong, and the temperature resistance reaches above 200 DEG C; (3) the preparation process is simple, and the yield is high; (4) the dosage is small, the cost is low, and the economic benefit is remarkable.

The present invention relates to a process for preparing of a food concentrate in which an aqueous starting solution from a foodstuff is concentrated by osmosis with a semi-permeable biomimetic membrane. In addition, the present invention relates to a food concentrate which can be produced by the process according to the invention, a food concentrate which is free of disturbing aroma components with an OAV (odour activity value) ≥1 and which does not contain any solvent additives. Furthermore, the present invention relates to the use of the food concentrates and products comprising the food concentrate according to the invention.

The application provides a two-stage reverse osmosis device for processing traditional Chinese medicine decoction pieces, and relates to the technical field of reverse osmosis devices, which comprises a base, a vertical frame fixed to the top of the base, an osmosis assembly installed on the vertical frame, a rotating frame fixed to the bottom of the osmosis assembly, a sterilization and disinfection assembly rotatably installed on the top of the rotating frame, and a driving assembly arranged at the connection between the sterilization and disinfection assembly and the osmosis assembly. The rotating shaft is driven to rotate by the first motor, the rotating discs on the four annular cavities are driven to rotate, the circular plate inside the annular cavity is driven to slide inside the annular cavity, the water inside the annular cavity is driven to flow, the water inside the annular cavity can be irradiated by the ultraviolet lamp strip, the water is completely sterilized and disinfected, the four annular cavities are alternately opened and closed by the driving assembly, part of the water can be saved while the continuous water inlet and water outlet are maintained, the water is independently sterilized and disinfected, and the ultraviolet irradiation time is increased.

A membrane assembly for extracting water from ambient air or seawater includes a manifold tube surrounded by a membrane web arranged about the manifold tube in a spiral configuration. The manifold tube has an entrance end, an exit end, web entrance ports, and web exit ports. The web membrane has a first osmosis membrane, a second osmosis membrane, a barrier layer positioned between the first osmosis membrane and the second osmosis membrane to form a first fluid flow conduit in fluid communication with the web entrance ports and a second fluid flow conduit in fluid communication with the web exit entrance ports and an end of the first fluid flow conduit. The web membrane also has a first porous structural material layer positioned within the first and second fluid flow conduit, and a second porous structural material layer positioned about the first osmosis membrane.

The invention relates to the technical field of beer processing, in particular to a multi-stage filtration and separation beer fermentation and filling integrated device which is characterized in that a coarse filter and a filter tank are arranged on one side of a fermentation tank, and a liquid outlet pipe is arranged on one side of the top of the filter tank and connected with a filling machine main pipe through a pipeline; the coarse filter is formed by surrounding a plurality of filter cartridges and filter screen cartridges sleeved with the filter cartridges, a center shaft of each filter screen cartridge is sleeved with a liquid leakage pipe, the top end of each liquid leakage pipe is higher than the top end of the corresponding filter screen cartridge, and the bottom of each liquid leakage pipe is provided with a leakage pipe penetrating through the bottom face of the corresponding filter cartridge; a permeation cylinder, a filter membrane plate and a transmission screw rod are sequentially arranged in the filtering tank from top to bottom in a sleeving manner. According to the invention, the plastic tube controlled by the floating ball always extracts the supernatant liquid of the fermentation tank, and the design of the liquid leakage tube of the coarse filter cartridge is matched to complete pre-separation of suspended matters, so that the filter load is reduced from the source; the permeation cylinder is filled with a filtering agent to intercept particles, and then a reverse osmosis filter membrane plate driven by a servo motor dynamically extrudes a tank bottom liquid layer, so that submicron particles are deeply filtered.

The utility model discloses a forward osmosis concentration system for plant extract, which comprises a concentration device, a first feed liquid tank, a second feed liquid tank and a forward osmosis membrane group, a first circulation loop is formed between the forward osmosis membrane group and the first feed liquid tank, a second circulation loop is formed between the second feed liquid tank and the forward osmosis membrane group, and the concentration device comprises a first inlet. The second feed liquid tank comprises a second inlet, the first inlet is used for introducing a plant extracting solution with the first concentration into the concentration equipment, the second inlet is used for introducing a plant extracting solution with the second concentration into the second feed liquid tank, and the osmotic pressure of the plant extracting solution with the first concentration is greater than that of the plant extracting solution with the second concentration; the first concentration is greater than the second concentration. The forward osmosis concentration system disclosed by the utility model can effectively avoid high-salt pollution or loss of low-molecular-weight effective components and aroma components caused by insufficient precision of a forward osmosis membrane, and can produce two products, namely a high-quality plant extraction concentrated solution and a common-quality plant extraction concentrated solution at one time.

A method and system of generating electrical power or hydrogen from thermal energy is disclosed. The method includes separating, by a selectively permeable membrane, a first saline solution from a second saline solution, receiving, by the first saline solution and / or the second saline solution, thermal energy from a heat source, and mixing the first saline solution and the second saline solution in a controlled manner, capturing at least some salinity-gradient energy as electrical power as the salinity difference between the first saline solution and the second saline solution decreases. The method further includes transferring, by a heat pump, thermal energy from the first saline solution to the second saline solution, causing the salinity difference between the first saline solution and the second saline solution to increase. The method may include a process of membrane distillation, forward osmosis, evaporation, electrodialysis, and / or salt decomposition for further energy efficiency and power generation.

Water purification, particularly through reverse osmosis systems, is gaining importance given the increasing levels of contaminants in tap water. Contaminants such as bacteria, agricultural runoff, hormones, plasticizers, and other pollutants pose a growing challenge. Water purification through reverse osmosis is a proven method for removing contaminants such as pollutants, microorganisms, and chemicals from drinking water. Despite its efficiency in removing contaminants, reverse osmosis also leads to the elimination of essential minerals that are important for human health. The present invention aims to develop a device for remineralizing and revitalizing osmosis water, which not only enriches the water with a balanced mixture of vital minerals, but also restores its original, natural energy structure.

The invention relates to a biogas slurry resourceful treatment method and a biogas slurry resourceful treatment system. The treatment method comprises the following steps: inputting biogas slurry subjected to anaerobic fermentation into an aeration tank for aeration; preliminarily filtering the biogas slurry subjected to aeration treatment, and then inputting the biogas slurry into a disinfection device for disinfection; the disinfected biogas slurry is subjected to secondary filtration and then input into a forward osmosis assembly, and forward osmosis concentrated liquid and first filtrate are obtained after forward osmosis; the first filtrate is input into a reverse osmosis assembly for reverse osmosis, a reverse osmosis concentrated solution and a second filtrate are obtained after the first filtrate passes through a reverse osmosis membrane, and the reverse osmosis concentrated solution is input into a forward osmosis assembly for cyclic utilization. Compared with the prior art, the forward osmosis concentrated solution is finally obtained by adopting aeration, disinfection, fine filtration, forward osmosis and other technologies, and the concentration efficiency is high; and the cyclic utilization of the forward osmosis filtrate is further realized through a reverse osmosis technology, so that the full-flow utilization of the biogas slurry is realized.

A high-purity artificial zeolite is industrially mass produced by carrying out osmosis treatment of fly ash in an alkaline aqueous solution, subsequently carrying out the osmosis treatment again with an acidic aqueous solution of pH 1.0 or less obtained by adding acid to the osmotic aqueous solution of fly ash, then performing solid-liquid separation while water wash and dewatering in a centrifuge, thereby synthesizing a starting composition, and performing hydrothermal reaction treatment to this starting composition.

This application discloses a pressure-assisted osmosis device and its membrane assembly, which includes a central tube and several membrane rolls. The central tube comprises an outer central tube, an inner central tube, and several dividing ribs. The dividing ribs divide the space between the outer central tube and the inner central tube into several peripheral channels. The outer central tube has a second type of through-hole to connect the peripheral channels with the outside of the outer central tube. The dividing ribs have at least a portion of a first type of through-hole. Both the central channel and the peripheral channels extend along a central axis, with the peripheral channels formed on the opposite outer side of the central channel. The first type of through-hole extends from the inner wall of the inner central tube through the dividing ribs to the outer wall of the outer central tube. The two openings of a membrane bag are respectively connected to the openings of a first type of through-hole and a second type of through-hole at the outer central tube. The advantage of this application is that it provides a pressure-assisted osmosis device and its membrane assembly with a reasonable structure that is easy to assemble and disassemble.

The utility model discloses water purification equipment for solving forward osmosis phenomenon, which comprises an RO (reverse osmosis) membrane filter unit, a booster pump, a PE (polyethylene) water bag, a water supply pump and a water inlet valve, the water inlet valve, the booster pump, the RO membrane filter unit, a first one-way valve, the water supply pump and a faucet are sequentially connected, and the first one-way valve is arranged towards the water supply pump. A zero stale water path is connected between the rear side of the water supply pump and the water inlet side of the RO membrane filtering unit and comprises a first flow meter and a second one-way valve. The RO membrane filtering unit is flushed through the zero-stale-water waterway, the service life of the RO membrane filtering unit is effectively prolonged, the problem that the TDS value of the first cup of water of the water purifier is high is solved, pure water is stored in a water bag made of a medical-grade PE material, the material is zero in precipitation, and drinking water of a user is safer and healthier.

A man-portable dialysate generator with a forward osmosis membrane module, a concentrated aqueous salt solution reservoir, a non-sterile water feedstock inlet, and a collection reservoir that produces sterile dialysate from non-sterile feed water. The dialysate generator does not have an electric-powered pump to move fluids across the osmosis membrane, or does not have electric-powered pumps that generate more than 5 psi for fluid pressure. The dialysate generator is man-portable, less than 50 pounds and maybe less than 31 pounds, and preferably less than 10 pounds. The device is particularly advantageous for use in forward deployed military patient care, disaster response or remote medical care situations away from clean water and electricity.

The invention provides non-thermal-driven electroosmosis vacuum synergistic drying equipment, and belongs to the technical field of sampling and sample preparation equipment, the non-thermal-driven electroosmosis vacuum synergistic drying equipment comprises: a rack, which is provided with anode contacts and cathode contacts distributed on three sides; the anode of the direct-current power supply is connected with the anode contact, and the cathode is connected with the cathode contact; the stainless steel coal sample barrel consists of a barrel body, an anode contact ring, a cathode base and an insulating rubber sealing gasket, and is mounted on the rack; the stainless steel vacuum filter tube is mounted on the cathode base and penetrates through the barrel; the water collecting container is hermetically connected with the bottom of the barrel through a rubber pad; the vacuum pump is fixed on one side of the rack and communicated with the water collecting container. Electrode contacts are arranged on three sides of a rack, a coal sample barrel realizes electrode self-conduction through a contact ring / base, a filter tube is in threaded connection with a cathode base, and a water collecting container is in vacuum sealing. The electrode contacts on the three surfaces ensure 360-degree reliable conduction, the cathode assembly is quickly disassembled and assembled through threaded connection, and the whole structure is suitable for high-water-content material treatment.

The present application relates to waste landfill treatment technical field, disclose a kind of sludge and fly ash mixed filling treatment process, comprising: porous medium composite adsorption medium preparation, ion exchange pre-activation modification, osmotic pressure gradient layer construction, electrochemical activation field formation, ion channel dredging treatment, osmotic pressure self-repairing adjustment, electrochemical self-cleaning maintenance and other steps.The present application is through the synergistic effect of porous medium reinforced osmosis adsorption and ion exchange pre-activation, combined with osmotic pressure gradient directional migration and electrochemical activation, realize the efficient removal and long-term stable treatment of heavy metal pollutants, high heavy metal removal rate, long stable operation period of landfill system, reduce artificial, effectively reduce environmental pollution risk.

A method and a system of generating electrical power or hydrogen from thermal energy is disclosed. The method includes separating, by a selectively permeable membrane, a first saline solution from a second saline solution, receiving, by the first saline solution and / or the second saline solution, thermal energy from a heat source, and mixing the first saline solution and the second saline solution in a controlled manner, capturing at least some salinity-gradient energy as electrical power as the salinity difference between the first saline solution and the second saline solution decreases. The method further includes transferring, by a heat pump, thermal energy from the first saline solution to the second saline solution, causing the salinity difference between the first saline solution and the second saline solution to increase. The method and system may include a regeneration process, such as membrane distillation, forward osmosis, electrodialysis, salt evaporation and / or salt decomposition.

A method for preparing a plant derived product or a process intermediate or a process input, the method comprising the steps of providing a plant derived starting material, subjecting the starting material to a forward osmosis step against a draw solution so as to produce a plant material concentrate, and subjecting the draw solution to a water removal step. The water removal step may include further forward osmosis in combination with an evaporator system.

A method for desalinating seawater and a device for carrying it out, comprising the steps of providing a reverse osmosis module fluidly connected to the upper end of a marine water body at a depth within the water body, with i as an element of the natural numbers and i>0, wherein the reverse osmosis module comprises a cavity with a process water chamber having an inlet and an outlet, and a permeate water chamber, which are separated from one another by an osmosis membrane filter; providing an outlet manifold fluidly connected to the outlet of the process water chamber at an outlet depth within the water body and having an outlet directed towards the ambient water, and discharging the permeate water from the permeate water chamber;wherein a process water flow is formed from the inlet of the process water chamber to its outlet, which has a hydrostatic process water pressure p1 in the reverse osmosis module built up by the depth h1 of the reverse osmosis module in the water body;

A heat driven osmosis water and power generator consists of dilute hygroscopic solution flow loop, an air humidity exchanger, a condensation solution circulation pump, a pressure retarded osmosis exchanger, a pressure exchanger, an evaporation chamber, a recuperative heat exchanger, a concentrated solution circulation pump, a solution pressure differential turbine generator, a freshwater power turbine, a concentrated hygroscopic solution flow loop and condensed water reservoir. The pump circulates low concentration, dilute, hygroscopic solution between air humidity exchanger and osmosis exchanger. Moisture is absorbed into low concentration hygroscopic solution from air circulation through humidity exchanger. As solution circulates through osmosis exchanger, moisture is extracted through osmosis membrane by concentrated hygroscopic solution. Concentrated hygroscopic solution circulation pump circulates high concentration solution between pressure retarded osmosis exchanger and vaporization chamber. Solution flowing to and from vaporization chamber is maintained at a lower pressure than fluid circulating through osmosis exchanger.

The invention discloses a membrane permeation-pressurized rectification coupling process of a diisopropylamine-isopropanol ternary water-containing system, which comprises the following steps: primarily separating by an azeotropic rectification tower to obtain a diisopropylamine-isopropanol-water homogeneous ternary mixture at the tower top, and cooling by a cooler to obtain a ternary mixture; conveying to a membrane dehydration assembly to selectively remove moisture; and the dehydrated diisopropylamine-isopropanol mixture enters a pressurized rectifying tower, so that high-purity recovery of diisopropylamine and isopropanol is realized. The process does not need to introduce a third component, equipment is simple, the recovery purity is high, meanwhile, chemical pollution is avoided, and the environmental protection requirement is met.

An atmospheric water vapor extraction power generation device includes a dilute hygroscopic solution flow loop, air humidity exchanger, condensation solution circulation pump, pressure retarded osmosis exchanger, pressure exchanger, evaporation chamber, recuperative heat exchanger, concentrated solution circulation pump, solution pressure differential turbine generator, freshwater power turbine, concentrated hygroscopic solution flow loop and condensed water reservoir.

The application discloses a method for preparing total anthraquinones in rhubarb by ultrafiltration-serial countercurrent extraction, and belongs to the technical field of natural substance separation. The method comprises the following steps: extracting rhubarb raw materials by ammonia osmosis, removing macromolecular impurities from the obtained osmosis liquid by ceramic ultrafiltration membrane filtration; adjusting the pH of the ultrafiltrate to serve as an extracted water phase, and performing countercurrent extraction on the extracted water phase by an extractant composed of solvent No. 260 and tributyl phosphate or trialkyloxy phosphine; loading the extractant to perform countercurrent back extraction on the extractant by an alkaline back extraction agent; and finally, acidifying, concentrating and drying the back extraction liquid to obtain high-purity total anthraquinones in rhubarb. The application couples ultrafiltration, serial countercurrent extraction and complexation extraction, solves the defects of traditional processes, such as easy emulsification, great solvent toxicity, high residue and high cost, and has the advantages of high selectivity of target components, high product purity, recyclable extractant, green and environment-friendly process, suitability for industrial production and the like.

The present application belongs to the technical field of soil engineering sludge solidification, and particularly relates to a vacuum electro-osmotic solidification and contaminated sediment repair integrated test system and method; the present application can monitor the change of the water content and the conductivity of the contaminated sediment in the electro-osmosis treatment process in real time, and can calculate the change of the pollution concentration of the contaminated sediment in real time according to the change of the water content and the conductivity, thereby solving the problems that the traditional test method needs sampling detection, the steps are complicated and the result cannot be obtained in real time, and the pollution concentration and the water content do not need to be measured by special equipment, thereby saving the cost; the pollutants in the contaminated sediment are discharged into the water collecting assembly with the sewage, thereby ensuring the decontamination effect; the contaminated sediment in the sludge inlet assembly is sucked into the vacuum container through the negative pressure assembly, thereby ensuring the uniformity of the contaminated sediment; with the test proceeding, the vacuum container compresses the contaminated sediment, thereby accelerating the vacuum electro-osmosis dewatering and decontamination process.

The invention relates to the technical field of cultural relic protection, and particularly discloses a desalination protection method and system for ocean effluent chinaware. The method comprises the following steps: directionally removing free salt under the protection of an ion selective membrane through pulse electrolysis, separating out deep crystallized salt in combination with multi-stage gradient depressurization permeation, and inhibiting structural damage by adopting segmented freeze drying; the system is composed of a pretreatment unit, an electrolytic desalination unit, a gradient pressure reduction unit and a drying unit, the electrolytic desalination unit is provided with an anti-oxidation circulation system, the pressure reduction unit integrates a rotating turbulent flow field and an osmotic pressure controller, and a crack monitoring module is arranged in the drying unit. Salinity data are fed back in real time through the embedded sensor network, process parameters are dynamically optimized through the central control unit, and cooperative control over high efficiency and cultural relic safety in the desalting process is achieved.

The invention discloses an osmotic water delivery machine which comprises a first communicating vessel, a second communicating vessel and a third communicating vessel, a high-concentration solution is filled in the second communicating vessel, water or a low-concentration aqueous solution is filled in the first communicating vessel and the third communicating vessel, osmotic pressure generated between the high-concentration solution and the low-concentration solution is larger than standard atmospheric pressure, and the first communicating vessel and the third communicating vessel are communicated with the atmosphere. The second communicating vessel is of a closed structure, a water inlet in the bottom of the second communicating vessel is communicated with a water outlet of the third communicating vessel, a first semi-permeable membrane is installed at the connecting position of the water inlet in the bottom of the second communicating vessel and the water outlet of the third communicating vessel, and a second semi-permeable membrane is installed at the connecting position of the water outlet in the top of the second communicating vessel and the water inlet of the first communicating vessel. Water is absorbed into a high-concentration solution under the action of atmospheric pressure and permeation, and the high-concentration solution is conveyed to a high position through a pipeline. At a high position, a high-concentration solution is subjected to reverse osmosis by producing vacuum or negative pressure, and a liquid level difference and gravitational potential energy of stored water are generated.