158results about How to "Efficient mass transfer" patented technology

An apparatus for the electrolytic treatment of the product L using a treatment agent is used to make the treatment of a plate-shaped product more uniform. This apparatus includes: devices for retaining 40, 42 the product L in the apparatus, one or a plurality of flow devices 10, which each include at least one nozzle 15 and are disposed situated opposite the product L, one or a plurality of counter electrodes 30, which are inert relative to the treatment agent and are disposed parallel to at least one treatment surface, means for generating a relative movement 44 between the product L, on the side, and the flow devices 10 and/or the counter electrodes 30, on the other side, in at least one direction parallel to a treatment surface. The product L can be immersed into the treatment agent during the treatment.

The present invention relates to tail gas treating process and apparatus, and is especially process and apparatus for treating high temperature fume containing acid gas, heavy metal, dioxin and other toxic gas from incinerating solid waste. The treating process includes the first reaction of the high temperature fume with deacidifying agent, active carbon and atomized water to eliminate toxic gases, and the subsequent reaction in a bag-type dust remover with one emergency passage for reaching high waste gas treating effect. The apparatus for treating high temperature fume has simple structure, low cost, low running expense, and long service life.

A multi-disc air diffuser according to the present invention comprises a bolt having a vent groove formed in a longitudinal direction thereof; a plurality of discs, each of the discs having a bolt joint section to be passed through the bolt, an air room for holding the air supplied through the vent groove, and a nozzle section having a plurality of nozzles which are arranged in an end part of the air room at a regular size and intervals, wherein the lower surface of each of the discs is more than the upper surface thereof and the outer circumference surface of each of the discs is formed to be inclined; and a backflow prevention section for joining to an end part of the bolt to adhere closely the discs to one another, connecting the vent groove to an air supply pipe, and having a check valve to prevent the air flowing backward from the vent groove to the air supply pipe.

A fermenter can have at least one hollow fluid conduit disposed at least partially within a vessel. An external circumference of the hollow fluid conduit and an interior circumference of the vessel can define a downward flow path through which a multi-phase mixture including a liquid media and compressed gas substrate bubbles flows. An interior circumference of the hollow fluid conduit can defined an upward flow path which is in fluid communication with the downward flow path. The multi-phase liquid can flow through the upward flow path and exit the fermenter. Cooling may be provided in the hollow fluid conduit or the vessel. One or more backpressor generators can be used to maintain a backpressure on the fermenter. One or more fluid movers can be used to variously create an induced and/or forced flow in the downward and upward flow paths.

The invention relates to a bioreactor, which is formed by serially connecting a reciprocating-rotation cell culture tank assembly module (104), a gas-dispersion control assembly module (102) and a liquid flow direction control assembly module (103) through a cell culture solution circulation pipeline. A carrier suspension conglutinated with cells is injected into a cell culture tank of a reciprocating bioreactor, and along with the rotation of a step motor and a double-headed peristaltic pump in the liquid flow direction control assembly module, the output of a preceding state hemodialysis unit or a culture solution in a culture solution container enters the circulation pipeline. When the culture solution reaches a dialysis column (301), a corresponding gas is diffused into the culture solution. Then, the culture solution with the corresponding gas is sent into the cell culture tank. After the exchange of substance with cells in the culture tank, the culture solution containing metabolites of cultured cells is sent back into the preceding state hemodialysis unit or the culture solution container through an output port of the cell culture tank and the culture solution circulation pipeline.

The present invention provides a system and method for forming an air breathing fuel cell that includes an air permeable cathode layer positioned to be in contact with atmospheric air and an electrically conductive, fuel permeable anode backing layer positioned to be in contact with a mixture of fuel and water, wherein the anode and cathode layers are divided by a pre-swollen electrolyte membrane, and the anode and cathode layers are in contact with electrical current collecting members. The present invention also provides a fuel cell stack consisting of fuel cells of the present invention arranged in a grid-like format within a support frame that is configured to provide electrical connections between the fuel cells.

The present invention discloses a novel membrane aerated anaerobic granular sludge reactor, belonging to the technical field of wastewater treatment. The reactor solves the problems of low solubility of gas substances in an aqueous solution, large gas-liquid mass transfer resistance and low mass transfer rate. The top of a reactor body is provided with a water outlet, and the middle side wall of the reactor body is provided with a middle water outlet; the middle water outlet of the reactor body is connected with a water inlet of a membrane module; a water outlet of the membrane module is connected with a bottom water inlet of the reactor body through a circulating pump, a water inlet is connected with the bottom water inlet of the reactor body through a feed pump, a high pressure gas cylinder outputs high pressure gas to the membrane module, and a gas pressure regulating valve is arranged between the high pressure gas cylinder and the membrane module. The novel membrane aerated anaerobic granular sludge reactor improves the content of a gas substrate therein, and shortens the formation time of granular sludge. The method for efficient nitrogen removal and greenhouse gas mitigation has higher nitrate and ammonia removal rates and a higher dissolved methane removal rate within a shorter time.

Hybrid dry cooler heat exchangers with one or more tube-fin heat exchange assemblies including at lease one such assembly wetted by water dropped on it with the first of such assembly stamped to provide arrays of slit/louver combinations breaking up water droplets and averting flight of droplets into a gas flowing between adjacent fins.

The invention relates to a polyacrylonitrile copolymer spinning solution and a preparation method thereof. In the invention, copolymerization reaction is performed on acrylonitrile in a tubular reactor containing a static mixer component; the tubular reactor, which contains the static mixer component and has the characteristics of mass transfer, efficient heat transfer, continuous and stable reaction and no mechanical stirring, is adopted to prepare the polyacrylonitrile copolymer spinning solution with high molecular weight and narrow molecular weight distribution. The polyacrylonitrile copolymer spinning solution is obtained after copolymerization reaction is performed on reaction liquid composed of monomers, a radical initiator and a solvent, wherein the percent concentration by weight of the monomers in the reaction liquid is 15% to 20%; the weight of the radical initiator is 0.4% to 1% of that of the monomers; the solvent is in balancing amount; the monomers are an acrylonitrile monomer and a comonomer. The dynamic viscosity of the polyacrylonitrile copolymer spinning solution provided by the invention is 200 to 800 Pa.S, and the molecular weight distribution is 1.5 to 2.6.

The invention belongs to the technical field of garbage recycling and the development and the utilization of biological energy sources and especially relates to a container type dry fermentation system. The convenience in charging and discharging is achieved through a manner that a stainless steel cover is matched with a wheeled movable dry fermentation device, and an opening of the movable dry fermentation device is used for charging and the discharging is carried out by directly withdrawing a bottom perforated baffle, wherein the stainless steel cover can vertically stretch out and draw back and is fixedly arranged on the ceiling of a fermentation room; the temperature control in a dry fermentation process is achieved through a temperature-controlling device built in the ground surface,meanwhile, a foam plastic board heat-insulating material is applied to the cover body, therefore, the temperature of the dry fermentation process is maintained; water grooves are paved on the ground surface along the bottom contour of the stainless steel cover, so that an anaerobic environment is guaranteed by using a water seal manner; and the leachate circulation is achieved through a leachate circulation system, i.e. a leachate collecting tank, pumps and spraying nozzles. According to container type dry fermentation system, the difficulty in the charging/discharging of dry fermentation canbe solved, meanwhile, the environmental conditions required for the dry fermentation process can be controlled, so that the efficiency of the dry fermentation is increased, and meanwhile, the transportation cost and the energy consumption are reduced.

The invention provides an adsorption bed structure. The adsorption bed structure comprises an adsorption bed housing and at least one unit tube; an inlet and an outlet are formed in the adsorption bed housing to allow an external medium to go in and out; the unit tube is arranged within the adsorption bed housing; the unit tube comprises a metal tube and a metal mesh tube which sleeve each other, an adsorbent filled between the metal tube and the metal mesh tube, and a front end cover and a rear end cover which are arranged at two end portions of the unit tube to seal the adsorbent; and the external medium circulates on a surface, back on to the adsorbent, of the metal tube. The adsorption bed structure provided by the present invention may enable the adsorbent to have relatively high packing density, and the adsorption bed to have a small size and packing volume.

The invention discloses a micro-electroforming method based on the magnetic force-driven convection effect and a device thereof, belonging to the electrochemical micromachining field. The method comprises the following steps: an anode and cathode core mould is placed in an electroforming groove, electroforming solution is added in the electroforming groove, the cathode and anode are electrified, when the electroforming layer on the core mould reaches a defined thickness, the solution supply and electroforming are stopped, the core mould is taken out to demould and remove photoresist; and in the electroforming process, a magnetic field perpendicular to the current direction of the anode and cathode is superposed on the outside of the core mould. The device used for implementing the method contains a electroforming system, an electroforming solution temperature control system and an electroforming solution circulating system, wherein the outside of the core mould in the electroforming system is provided with a magnetic field generator. By adopting the method of the invention, the problem that the liquid phase mass transfer of high depth-to-width ratio (depth-to-diameter ratio) micro-electroforming is limited can be solved; and the prepared casting has uniform thickness, fewer sedimentation defects and compact structure.

The invention relates to a magnetic adsorbent for removing Hg0 from flue gas and preparation and application of the magnetic adsorbent. The magnetic adsorbent is MagFeSi-Cu0. The preparation method includes the first step of putting Fe3O4 nano particles in deionized water, adding Na2SiO3, adding a mixture into ethyl alcohol, adding NH3*H2O for a sol-gel reaction, conducting steam treatment and conducting drying to obtain magnetic particles of a silicon dioxide coating; the second step of introducing copper nano particles into the surface of silicon iron and sintering the magnetic particles of the silicon dioxide coating and the silicon iron to obtain the magnetic adsorbent. The magnetic adsorbent is applied to removing Hg0 from the flue gas. An adsorbent of mercury is the magnetic adsorbent, the coal-fired flue gas passes through a filter material, the mercury in the flue gas is caught by the magnetic adsorbent in the filter material, a dry drum magnetic separator is used for adsorbent spending and flying ash extraction, the used magnetic adsorbent MagFeSi-Cu0 will be regenerated and cycled, and therefore use cost of the adsorbent will be lowered.

A cigarette filter for removing gas phase constituents from mainstream cigarette smoke as the smoke is drawn through the filter primarily comprises an activated carbon fiber filter section including a bundle of activated carbon fibers. Particulate adsorbent materials such as granules, beads or course powders may be dispersed amongst the activated carbon fibers to aid in removal of the gas phase constituents. Additionally, the activated carbon fiber filter section may be used in combination with a separate bed or beds of particulate adsorbent material. In one embodiment, the activated carbon fibers are positioned within a helical groove on the outside of a threaded rod within the activated carbon fiber filter section. Relatively smaller amounts of activated carbon fibers produce the same smoke constituent reduction as larger amounts of particulate adsorbent material.

The invention provides a flat plate photobioreactor, which comprises a reactor main body and at least one multifunctional coiled pipe which is arranged in the reactor main body. By virtue of the multifunctional coiled pipe, the circulating flow of algae liquid in an optical direction is achieved, so that the effective utilization of a flash effect is achieved; gas can shoot into the algae liquid at different heights, so that gas-liquid mass transfer becomes more efficient and temperature control and dissolved oxygen repelling are conducted more efficiently; in addition, on the basis of a relatively strong scouring effect of a jet flow from the coiled pipe to a sidewall face on the wall face, the attachment of algae on the inner wall of the reactor and on the coiled pipe can be effectively relieved and cleaning times can be reduced; and by combining internal and external light sources, the purpose of enlarging an individual reactor body can be achieved by adding the multifunctional coiled pipes, so that the the limitation that the flat plate photobioreactor can be enlarged just by adding reactor units is overcome, which is conducive to the implementation of industrialization.

The invention relates to a method for anaerobic reaction by using an anaerobic fluidized bed bioreactor. The method includes: (A) inoculating an anaerobic sludge liquid; (B) adding waste water prepared by human, growing an anaerobic bacterium biological membrane on zeolite particles; and (C) adding high concentration industrial waste water or residual sludge mud from town sewage treatment factories for anaerobic digestion. In the inventive method, the zeolite particles with smaller volume are used as biological carriers, the bacterium biological membrane is adhered to the particles, a mass transfer efficiency between the industrial waste water and the residual sludge and the bacterium biological membrane is improved by using the huge specific surface of the small particles. The method for anaerobic reaction by using the anaerobic fluidized bed bioreactor has higher treatment capacity, after stable running, an average volume load can reach 30-35KgCOD/m<3>.d, the mass transfer efficiency between the industrial waste water and the residual sludge and the bacterium biological membrane is improved, the advantages of a fluidized bed technology are fully utilized, so that the treatment efficiency of the industrial waste water and the residual sludge of a sewage plant is greatly improved.

The invention discloses an extraction device comprising an emulsifying machine (1) and a phase-splitting apparatus (2). The emulsifying machine (1) is provided with an emulsifying machine inlet (3) and an emulsifying machine outlet (4), the phase-splitting apparatus (2) is provided with a mixed phase inlet (5), a heavy phase outlet (6) and a light phase outlet (7), the emulsifying machine inlet (3) is connected with an extracted object inlet (8) and a solvent inlet (9), and the emulsifying machine outlet (4) is connected with the mixed phase inlet (5) of the phase-splitting apparatus. When multistage extraction devices are combined, the light phase outlet of the phase-splitting apparatus in the extraction device at the current level is connected with the solvent inlet of the extraction device at the next level through a pipeline provided with a pump, and the heavy phase outlet of the phase-splitting apparatus in the extraction device at the next level is connected with the extracted object inlet of the extraction device at the current level through the pipeline provided with the pump. The invention has high extraction efficiency, small size, less occupied area, simple operation and capability of saving apparatus investment and running cost.

A system and method for oxygenating an aerobic sludge digester is provided. The disclosed embodiments include an aerobic sludge digester tank or vessel having a mechanically agitated contactor disposed therein, an oxygen injection subsystem adapted to inject oxygen into the digester tank proximate the mechanically agitated contactor. The embodiments of the mechanically agitated contactor include an agitator or impeller disposed within the draft tube which makes the draft tube the primary site for the gas-liquid mixing. In particular, the agitator or impeller is adapted to create gas bubbles having an average diameter between about 0.3 mm and 3.0 mm which are then dispersed into the aerobic digester. The mass transfer efficiency associated with the present system and method is enhanced from the combined effect of oxygen dissolution into the sludge and greater bubble residence time.

The invention discloses a magnetically fluidized bed device. The magnetically fluidized bed device comprises a magnetically fluidized bed body, one or more groups of electromagnetic coils arranged outside the magnetically fluidized bed body, a controllable power supply connected with the electromagnetic coils, a controller, a fluidized state instrument, a temperature instrument and a current stabilizer, wherein the fluidized state instrument and the temperature instrument are connected with the magnetically fluidized bed body respectively; a fluid outlet and a fluid inlet are formed in the magnetically fluidized bed, an exhaust port is formed at the top end of the magnetically fluidized bed, the current stabilizer is arranged at the position of the fluid inlet, a sieve plate is arranged under the inside of the fluidized bed, a granular magnetic bed material is distributed above the sieve plate, and the controllable power supply, the fluidized state instrument, the temperature instrument are connected with the current stabilizer and the controller respectively, and a heat conduction layer is arranged at the contact part of the fluidized bed and the inner coil of the electromagnetic coil. A control method that the magnetically fluidized bed device is utilized to generate the magnetic field and thermal energy is fully utilized is adopted, the energy consumption is reduced, the safety is improved and automatic control is achieved.