125 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.

Methods and systems for generating electricity or hydrogen from thermal energy are disclosed. The method includes separating a first saline solution from a second saline solution by a selective permeable membrane (104), receiving thermal energy from a heat source by the first saline solution and / or the second saline solution, and mixing the first saline solution and the second saline solution in a controlled manner, the first saline solution being separated from the second saline solution as a salinity difference between the first saline solution and the second saline solution decreases. At least some salinity gradient energy is captured as electrical power. The method further includes transferring thermal energy from the first saline solution to the second saline solution by a heat pump (320), causing an increase in salinity difference between the first saline solution and the second saline solution. The methods and systems may include regeneration processes such as membrane distillation, forward osmosis, electrodialysis, salt evaporation, and / or salt decomposition for further energy efficiency and power generation.

The utility model discloses a reverse osmosis membrane cleaning device which comprises a cleaning box, a cleaning tank, a flow dividing device, a settling box, a blow-off pipe, a filter pipe and a water pump, the cleaning tank is arranged in the cleaning box, a first transmission wheel is arranged on the front side of the cleaning tank, a second transmission wheel is arranged on the rear side of the cleaning tank, a driven wheel is arranged in the cleaning tank, and the filter pipe is arranged in the driven wheel. First nozzles are arranged on the left and right sides of the cleaning tank. Through a clamping structure composed of a first transmission wheel and a second rotating wheel in a cleaning tank, a reverse osmosis membrane roller placed in the cleaning tank can be extruded by the first transmission wheel and the second rotating wheel, and then the first transmission wheel and the reverse osmosis membrane roller are driven by a motor connected with a belt wheel on the rear side of the first transmission wheel to rotate; and the reverse osmosis membrane roller is cleaned by matching with the protective cover and the spray heads which are arranged in the cleaning tank in a staggered manner, so that the surface of the reverse osmosis membrane roller is comprehensively flushed, and residues of liquid medicine and blocking particles are avoided.

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.

The invention discloses a membrane rolling device for reverse osmosis membrane preparation, and relates to the technical field of osmosis membrane preparation, the membrane rolling device comprises a rolling frame and a membrane main body, and the inner wall of the rolling frame is fixedly connected with a shaft rod 1. According to the membrane rolling device for preparing the reverse osmosis membrane, when the reverse osmosis membrane is rolled, the smoothing roller can be driven by the tension spring to be attached and extruded with the surface of the membrane, and when the thickness of the rolled membrane is continuously increased, the attaching and extruding degree of the membrane can be synchronously increased by utilizing the elastic force of the tension spring; therefore, the film can be smoothed in the winding process, the possibility of wrinkling is reduced, meanwhile, the expansion distance of the multiple expansion blocks can be adjusted through the smoothing roller moving continuously, the perimeter is gradually increased, the rotating speed of the driven disc is continuously reduced, then the film can be wound at a constant speed, and the winding efficiency is improved. And the winding effect of the reverse osmosis membrane is ensured, and the flatness and uniformity of the surface of the membrane prepared by the device are improved.

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 invention relates to water for simulation test of a reverse osmosis water purifier and a preparation method and application thereof, in particular to the technical field of water detection, and the water for simulation test of the reverse osmosis water purifier comprises 0.16-0.17 mL / L of aluminum-containing colloid, 0.16-0.17 mg / L of water-containing aluminosilicate, 0.6-0.7 mg / L of alkali, 0.15-0.16 mg / L of humic acid and 5-5.5 mg / L of aluminum salt. According to the simulation test water for the reverse osmosis water purifier, the components in the simulation test water are reasonably configured, and the synergistic effect of the components is utilized, so that a flow attenuation curve for testing a reverse osmosis membrane can be well simulated, and the performance of the reverse osmosis water purifier is favorably tested.

The utility model relates to a chemical industry production technology, and discloses a liquid phase osmosis membrane filtration system, which comprises a raw material tank, a primary reverse osmosis main machine, a secondary reverse osmosis main machine and a nanofiltration box, reverse osmosis membranes are uniformly distributed in the primary reverse osmosis main machine and the secondary reverse osmosis main machine respectively, and nanofiltration membranes with membrane pore diameters of 1-2nm are uniformly distributed in the nanofiltration box; a feeding pipe is mounted on the raw material tank, the raw material tank is connected with the primary reverse osmosis main machine through a first liquid inlet pipe, a first booster pump and a precision filter are arranged on the first liquid inlet pipe, the primary reverse osmosis main machine is connected with an intermediate tank, the intermediate tank is connected with the secondary reverse osmosis main machine through a second liquid inlet pipe, and a second booster pump is arranged on the second liquid inlet pipe; the first-stage reverse osmosis host is connected with a first booster pump, the second-stage reverse osmosis host is connected with a crude product tank, the crude product tank is connected with a nanofiltration box through a third liquid inlet pipe, a third booster pump is arranged on the third liquid inlet pipe, the nanofiltration box is connected with a product tank, and pressure sensors are arranged in inner cavities of the first-stage reverse osmosis host, the second-stage reverse osmosis host and the nanofiltration box.

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.

Photocurable (meth)acrylate compositions for forming features on the surfaces of membranes, and particularly, on membranes used in osmosis and reverse-osmosis applications, such as membrane filters.

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.

The present invention relates to a method and device for determining the imbibition oil displacement concentration of a surfactant solution. The method comprises the following steps: providing a water tank for containing the surfactant solution and a capillary with one end located in the water tank; adding the surfactant solution into the water tank until the liquid level of the surfactant solution is higher than the minimum scale of the capillary and the surfactant solution has a first preset concentration; adding crude oil into the capillary and calculating the imbibition kinetic resistance ratio of the surfactant solution with the first preset concentration, and then cleaning the water tank and the capillary; repeating steps two and three for multiple times and calculating the imbibition kinetic resistance ratio of the surfactant solution with a second preset concentration to N preset concentrations; determining the preset concentration corresponding to the optimal oil displacement effect of the surfactant solution according to the size of the above-mentioned imbibition kinetic resistance ratio. The method of the present invention can quickly determine the preset concentration corresponding to the optimal oil displacement effect of the surfactant solution.

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.

The invention relates to a seawater desalination control system, method and device, and belongs to the technical field of seawater desalination, the system comprises a filtering device, the first end of the filtering device is connected with a seawater input port of the system, and the second end of the filtering device is connected with a concentrated water output port of the system; the first end of the first reverse osmosis device is connected with the third end of the filtering device, and the second end of the first reverse osmosis device is connected with a concentrated water output port of the system; the first end of the second reverse osmosis device is connected with the third end of the first osmosis device, the second reverse osmosis device is connected with the concentrated water output port of the system, the third end of the second reverse osmosis device is connected with the fresh water output port of the system, and the fourth end of the second reverse osmosis device is connected with the fresh water interface of the system; the controller is electrically connected with the filtering device, the first reverse osmosis device and the second reverse osmosis device respectively.

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.

Methods and systems for generating electricity or hydrogen from thermal energy are disclosed. The method includes separating a first saline solution (130) from a second saline solution (140) by a selectively permeable membrane (104), receiving thermal energy from a heat source (305) by the first saline solution and / or the second saline solution, and mixing the first saline solution and the second saline solution in a controlled manner, the first saline solution being separated from the second saline solution as a salinity difference between the first saline solution and the second saline solution decreases. At least some salinity gradient energy is captured as electrical power. The method further includes transferring thermal energy from the first saline solution to the second saline solution by a heat pump (320), causing an increase in salinity difference between the first saline solution and the second saline solution. For further energy efficiency and power generation, the method may include processes of membrane distillation, electrodialysis, and / or salt decomposition.

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.

The utility model belongs to the technical field of construction anti-seepage structures, and provides a hydraulic engineering construction anti-seepage structure which comprises a dam body, a reinforcing layer is arranged on one side of the inclined face of the dam body, an isolation layer is arranged on the side, away from the dam body, of the reinforcing layer, and a drainage layer is arranged on the side, away from the reinforcing layer, of the isolation layer. An impermeable layer is arranged on the side, away from the isolation layer, of the drainage layer. The reinforcing layer, the isolating layer, the drainage layer and the anti-seepage layer are arranged on the upstream face of the dam body, a complete water conservancy project construction anti-seepage structure is formed through structural matching of the layers, the anti-seepage structure is laid outside a water conservancy project main body structure, tight connection and good fixation of the layers are guaranteed, and the water conservancy project construction anti-seepage structure is formed. Through combined use of multiple layers of waterproof materials and comprehensive application of drainage, isolation, reinforcement and other measures, the waterproof performance and long-term stability of the water conservancy project can be remarkably improved, and the leakage problem is effectively prevented.