Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

51 results about "Electrofiltration" patented technology

Electrofiltration is a method that combines membrane filtration and electrophoresis in a dead-end process. Electrofiltration is regarded as an appropriate technique for concentration and fractionation of biopolymers. The film formation on the filter membrane which hinders filtration can be minimized or completely avoided by the application of electric field, improving filtration’s performance and increasing selectivity in case of fractionation. This approach reduces significantly the expenses for downstream processing in bioprocesses.

Method and device for purifying poisonous gas through cooperation of magnetic-enhanced electrofiltration dedusting and low-temperature plasmas

The invention discloses a method and a device for purifying poisonous gas through cooperation of magnetic-enhanced electrofiltration dedusting and low-temperature plasmas. The method comprises the following steps: industrial waste gas is introduced into a corona area generated by a corona electrode and electrofiltration cloth with a catalyst coating layer; particles in the gas are charged in the corona area; meanwhile, the low-temperature plasmas are generated in the corona area; the charged particles and the low-temperature plasmas move to the electrofiltration cloth under the effects of magnetic field force and electric field force; the particles with different sizes are settled and removed; meanwhile, the low-temperature plasmas oxidize poisonous and harmful components in the gas underthe effect of catalyst on the electrofiltration cloth to realize purification of the poisonous gas; and through effective utilization of the coupling effect of an electric field and a magnetic field and a low-temperature plasma gas purifying technology, the removing efficiency of particles in industrial waste gas is improved, the excellent effect on difficult-removed fine submicron particles withparticle sizes of 0.1-2.5 mm is achieved, and the purification of the poisonous gas is realized.
Owner:KUNMING UNIV OF SCI & TECH

Recirculation filter for an electronic enclosure

ActiveUS20140043711A1Reduce particulate contaminant levelAvoid reflectionsGas treatmentDispersed particle filtrationFiltrationEngineering
A filter assembly for use in an electronic enclosure is provided. The filter assembly includes a highly permeable scrim that defines an elongate enclosure with an inlet at a first end and a closed second end, wherein an electrostatic filtration media is disposed within the elongate enclosure.
Owner:DONALDSON CO INC

Method and device for electromagnetic collaborative electrofiltration dust removal

ActiveCN105727676AEconomical and efficient removalEfficient dust removal efficiencyCombination devicesGas treatmentParticulatesElectricity
The invention discloses a method and device for electromagnetic collaborative electrofiltration dust removal.Dust-laden waste gas passes through a corona discharging area for charging, collaborative intensification is carried out through electric field force and magnetic field force, charged particles are made to move towards electrofiltration cloth with electric dust collection and adsorption filtering functions and are intercepted through the adsorption and filtering effects of the electrofiltration cloth, and gas penetrates through the electrofiltration cloth to be purified.In the dust removal process, corona electrodes carry out discharging to charge the particles, the conductive electrofiltration cloth serves as a dust collection electrode to attract the charged particles under the effect of electric field force and carries out filtration and capture, and the intensity and the direction of the magnetic field can be regulated and controlled through a magnetic field generator to reinforce removal of the particles.According to the method and device for electromagnetic collaborative electrofiltration dust removal, the advantages of electric dust removal, cloth bag dust removal and other technologies are ingeniously coupled through the two functions of the electrofiltration cloth, the efficiency for removing the particles in industrial waste gas is greatly improved, and especially the efficiency for removing fine particles (PM2.5) which are difficult to remove can be higher than 99.9%.
Owner:KUNMING UNIV OF SCI & TECH

Core electrofiltration potential measuring gripper

The invention provides a core electrofiltration potential measurement clamp holder which mainly solves the problem that the conventional core clamp holder can not measure electrofiltration potentials. The clamp holder is characterized in that after one side of a high-pressure organic glass container (2) is fixedly connected with an upright plate at one side of a device bracket (16), and the other side thereof is fixedly connected with a core fixing mount (6), the high-pressure organic glass container is horizontally arranged on an arc supporting plate of the device bracket (16); the core fixing mount (6) is internally provided with a rubber sealing boot (7) and provided with an air filling connector (9); one side of a low-pressure organic glass container (10) is fixedly connected with a low-pressure container fixing seat (11) and horizontally arranged on an arc supporting plate of the device bracket (16); the low-pressure container fixing seat (11) is connected with a handle (14) which is provided with a thrust ball bearing (13) by a driving screw (12); and the thrust ball bearing (13) and the handle (14) are fixed on an upright plate at the other side of the device bracket (16). The clamp holder has the characteristic of being capable of measuring core electrofiltration potentials.
Owner:DAQING OILFIELD CO LTD

Electrostatic dust detector

An apparatus for detecting dust in a variety of environments which can include radioactive and other hostile environments both in a vacuum and in a pressurized system. The apparatus consists of a grid coupled to a selected bias voltage. The signal generated when dust impacts and shorts out the grid is electrically filtered, and then analyzed by a signal analyzer which is then sent to a counter. For fine grids a correlation can be developed to relate the number of counts observed to the amount of dust which impacts the grid.
Owner:THE UNITED STATES AS REPRESENTED BY THE DEPARTMENT OF ENERGY

Method and device for dry-type medium- and high-temperature grading electrofiltration dust removal of carbon thermal reduction furnace flue gas

The invention discloses a method and device for dry-type medium- and high-temperature grading electrofiltration dust removal of carbon thermal reduction furnace flue gas. According to the method and device, the carbon thermal reduction furnace flue gas is introduced into a charging region under a sealed condition with oxygen content lower than 5 percent; a negative electrode is arranged in the charge region, and a high-temperature electric heating and electric filtering coupling assembly is used as a positive electrode and is adopted as a dust collecting electrode at the same time; under the action of direct current, alternating current or pulse high-voltage voltage, the charging region charges particulate matters in the flue gas; the charged particulate matters can be effectively removedunder the action of electric field force and micropore physical resistance; the high-temperature electric heating and electric filtering coupling assembly can generate high temperature under the action of current to heat the flue gas, so that the condensation of the carbon thermal reduction furnace flue gas is prevented, and the phenomenon that a pipeline is blocked due to the condensation of partof the carbon thermal reduction furnace flue gas such as yellow phosphorus flue gas is effectively avoided. With the method and device of the invention adopted, the high-efficiency removal efficiencyof the particulate matters in the medium-high temperature carbon thermal reduction furnace industrial waste gas is improved to a great extent.
Owner:KUNMING UNIV OF SCI & TECH

High gas speed and high efficiency wet-type electrofiltration device for deep treatment of PM2.5

The invention relates to a high gas speed and high efficiency wet-type electrofiltration device for deep treatment of PM2.5, which mainly comprises a main shell and an electrode separation device arranged in the main shell, wherein a lower air chamber is arranged at the lower part of the main shell and an upper air chamber is arranged at the upper part of the main shell; an exhaust inlet and a pollution discharge port are formed in the lower air chamber; a gas distribution device is arranged at the connecting part of the lower air chamber and the main shell; an exhaust port is arranged at the top of the upper air chamber; the electrode separation device comprises a cathode device, an anode device and a power supply device; the anode device is honeycomb-shaped conductive composites tube bundle; the cathode device comprises a cathode connecting board positioned in the upper gas chamber and a plurality of cathode wires hung on the cathode connecting board; cathode wires penetrate the honeycomb-shaped conductive composites tube bundle in one-to-one correspondence; a heavy hammer is connected with the lower end of each wire. The high gas speed and high efficiency wet-type electrofiltration device has good collection effects to tiny / viscous / high resistance ratio PM2.5 particulates, aerosol, tiny metal particles, dioxin and the like.
Owner:JIANGSU ZHONGXING CHEM EQUIP +1

System and method for realizing high-efficiency removal of fine particles in high-temperature gas through electrofiltration coupling

The invention relates to a system and method for realizing the high-efficiency removal of fine particles in high-temperature gas through electrofiltration coupling. The system comprises an intelligentcontrol device, a filter body, a discharge dust removal device, a filtering dust removal device, a rectifying device, a tubular ash removal device, a vibrating ash removal device, a hot air device and an ash conveying device; the intelligent control device collects, processes and feeds back all real-time monitoring data of the whole system. According to the system and method of the invention, anelectrofiltration coupled high-temperature flue gas dust removal system formed by combining the three devices, namely, the intelligent control device, the discharge dust removal device and the filtering dust removal device, the rectifying device and the tubular ash removal device are adopted; the advantages of each device technology are fully utilized; the restriction of flue gas conditions (temperature, components, physicochemical properties and the like) and smoke dust conditions on the dust removal performance of the dust removal device is effectively solved; the operation parameters of thehigh-temperature dust removal system are adjusted in real time by intelligently optimizing and regulating a key parameter model; and the purposes of energy conservation, consumption reduction and emission reduction are achieved.
Owner:ZHEJIANG UNIV

Membrane electrode used for ozone/electrical filtration coupled water treatment system as well as preparation method and application of membrane electrode

The invention relates to a membrane electrode used for an ozone / electrical filtration coupled water treatment system as well as a preparation method and application of the membrane electrode. The membrane electrode includes a substrate filter membrane and an electro-conductive catalytic component, the substrate filter membrane is an electrode bottom layer, and the surface of the substrate filter membrane is loaded with the electro-conductive catalytic component; and the electro-conductive catalytic component is aimed at the ozone / electrical filtration coupled system, and can improve the filtering performance of the substrate filter membrane and realize a synergistic reaction between ozone and electrochemical oxidation. The invention also provides the preparation method of the electrode. Electrochemistry / ozone coupled advanced oxidation and a membrane filtration technology are combined through a certain process, so that complementation and mutual promotion of the processes in a same reaction device are realized, the treatment efficiency is significantly improved, membrane pollution is suppressed, and efficient water treatment is realized.
Owner:HOHAI UNIV

Method for protecting electric filter and removing electronegative colloids and particles in brine wastewater by electrodialysis

The invention relates to a method for protecting electric filter and removing electronegative colloids and particles in brine wastewater by electrodialysis. Anion-exchange membranes, partition meshes and anion-exchange membranes are sequentially and alternately arranged between the negative plate and positive plate to constitute an electric filter water channel, and are clamped by a clamping device to constitute an electric filter. When brine wastewater containing electronegative colloids and particles enter the electric filter, a direct current is applied between the positive and negative plates, so that the electronegative colloids and particles in the brine wastewater migrate to the anion-exchange membranes under the action of the electric field; and in the migration process, the electronegative colloids and particles are blocked by the anion-exchange membranes and adhere to the membrane surface or are embedded into the pores of the membranes, thereby removing the electronegative colloids and particles in the brine wastewater. The wastewater adsorbed by the electric filter enters subsequent electrodialysis equipment to perform desalting operation, thereby lowering the pollution level of the negative membranes of the electrodialysis equipment, ensuring the long-term stable operation of the electrodialysis equipment and prolonging the service life of the electrodialysis equipment.
Owner:BEIJING JINGRUN NEW TECH DEV

Water treatment systems, an electric filtration cell, and methods of separating and acquiring charged compositions, such as phosphorous

Methods and apparatus for use in a water treatment system to separate charged compositions from the water stream are provided. An electric filtration cell may include a fluid passageway, a filtration membrane, and a first and second electrode, configured to provide an oscillating electric field across the filtration membrane to separate charged compositions on a first side of the membrane. A water treatment system may be provided to separate charged compositions from a water stream. The water treatment system may include an electromagnetic field (EMF) device to generate an electromagnetic field within a passageway. The water treatment system may further include a filtration membrane and a first electrode and a second electrode, configured to provide an oscillating electric field across the filtration membrane to separate charged compositions. In one embodiment, the system is configured to separate struvite and / or vivianite on a first side of the membrane. In another embodiment, the system is configured to separate salt on a first side of the membrane.
Owner:UNIVERSITY OF VERMONT

A distillation tower

A distillation tower is disclosed. A tower body comprises a bottom rectification layer (1), a top cooling layer (2), and more than one tower sections (3) stacked between the bottom rectification layer and the top cooling layer. Each tower section (3) is provided with a feeding port. A condenser (4) is disposed in the top cooling layer (2). An outlet end of the condenser (4) is connected to a discharging pipe (5). The bottom rectification layer (1) comprises an inner drum (6) and an outer drum (7), wherein the inner drum (6) is used for containing distillation liquid; and conductive oil is disposed between the inner drum (6) and the outer drum (7). A heating rod penetrates the outer drum (7), sticks into the conductive oil, and is used for heating the conductive oil. The bottom rectification layer (1) is provided with a hollow heating interlayer, and a high-temperature resistant film (8) is adhered to the inner wall of the bottom of a tank. The distillation tower is small in occupied space, low in cost, power-saving, and good in filtration effects. The distillation liquid is more evenly heated. The distillation tower adopts the conductive oil for heating, so that the distillation tower is large in heating area, low in heat loss, high in temperature controllability and largely improved in safety.
Owner:于桂菊

Piezoelectric and/or thermoelectric reinforced electrofiltration long-term double-effect filter material and manufacturing method thereof

The invention relates to a piezoelectric and / or thermoelectric reinforced electrofiltration long-term double-effect filter material and a manufacturing method thereof. The electrofiltration long-termdouble-effect filter material comprises a filter material base material and a coating attached to the surface of the filter material base material, wherein the coating contains a piezoelectric powdermaterial and / or a thermoelectric powder material. Under the action of wind pressure during normal-temperature gas filtration or under the dual action of heat and wind pressure during hot flue gas filtration, the piezoelectric and / or thermoelectric powder material in the surface coating spontaneously generates static electricity, so that the filter material is changed into a charged material, particles are captured by a fiber filtration mechanism while the electrostatic adsorption efficiency on fine particles is remarkable, the major problems that a conventional filter material is low in efficiency on the fine particles and easy to penetrate at present can be solved, the filtering precision and the trapping efficiency of the filter material on the fine particles are effectively improved, and the filter material is different from a conventional electret material in the aspect of application environment selection. The material becomes a double-effect filter material which can be used fora long time under severe industrial flue gas conditions such as damp heat and corrosion and can permanently generate electricity.
Owner:NORTHEASTERN UNIV

Metal coated polymembrane and method of electrofiltration and electrosorption using a metal coated polymembrane

A metal coated polymer membrane, a method for the production thereof, an electrofiltration device or electrosorption device, and a method of electrofiltration and electrosorption using a metal coated polymer membrane. The polymer membrane is coated with metal using Atomic layer deposition (ALD).
Owner:I3 MEMBRANE

A high-voltage electrostatic load filter device for positive pressure biological protective clothing

The invention discloses a high-voltage electrostatic filter device for virus prevention and control positive pressure biological protective clothing, which is characterized in that it is composed of a fixing belt, a casing, a power supply system, a core filter component, an air supply system, and an integrated control circuit; the casing is equipped with There are gas conduits, the upper gas valve port docking interface, and the grounding wire interface, and each interface is provided with a sealing ring. There are two openings on the left and right sides of the shell, and the air supply system is installed through four openings to maintain the air volume and keep the protective clothing inside. Air pressure, use airtight cushion to compress. The device of the present invention breaks through the traditional principle of physical barrier filtration, and realizes the high-efficiency filtration of fine particles and the inactivation of pathogenic microorganisms with the compound mode of high-voltage electrostatic field, while maintaining ultra-low pressure drop. The filter material of the device of the present invention has a loose structure, which can be repeated after cleaning. In use, the filter material has a long service life and low replacement frequency, and can be connected to the positive pressure protective clothing worn by the workers in the external environment of biological level 3 and above laboratories or high-risk biological pollution.
Owner:DONGHUA UNIV

System and method for pretreatment of high-protein wastewater

The invention discloses a system and method for pretreatment of high-protein wastewater. The system comprises an electrofiltration bed and a coagulation sedimentation tank, wherein the electrofiltration bed is connected with a water inlet pipe; a positive electrode plate, a negative electrode plate and a filtering material are arranged in the electrofiltration bed; the positive electrode plate andthe negative electrode plate are connected with a power source; the filtering material is arranged between the positive electrode plate and the negative electrode plate; the electrofiltration bed isconnected with the coagulation sedimentation tank through a communication pipe; the coagulation sedimentation tank is connected with a water outlet pipe; and a metering pump used for adding a flocculant and a pipeline type mixer are arranged on the communication pipe. According to the invention, electrodes and the filtering material are arranged on the electrofiltration bed, and through electrocatalytic oxidation, long-chain protein molecules are decomposed into short-chain protein molecules; and through the action between trace iron ions and protein molecules with negatively-charged surface,electrostatic repulsion force among the protein molecules is reduced, and sedimentation of protein is promoted, so highly-efficient removal of the protein in water is realized, and the COD value of the wastewater is reduced. The system and the method provided by the invention has the following advantages: the cost of equipment is significantly reduced; the amount of an added chemical is reduced; the cost of purification is effectively reduced; and favorable conditions are provided for advanced treatment of protein wastewater.
Owner:GUANGYU WATER RESOURCE TECH DEV BEIHAI

Water treatment system with ozone enhanced electric filtration and water treatment method

The invention discloses a water treatment system with ozone enhanced electric filtration and a water treatment method. The water treatment system comprises a water inlet pump, an electrochemical / ozone reaction device, a power supply and an ozone generator. The water inlet pump and the electrochemical / ozone reaction device are sequentially connected, wherein a purification unit is arranged in the electrochemical / ozone reaction device, and the purification unit is provided with an anode and a cathode which are respectively connected to the positive electrode and the negative electrode of a power supply; and the anode and the cathode are cylindrical, the cathode is arranged in the internal space of the anode in parallel, the anode and the cathode are divided into an upper part and a lower part with different water permeability through an aeration disc in the cathode and a one-way valve between the anode and the cathode, and the ozone generator is connected with an air inlet in the lower part of the cathode. The water treatment system further comprises a backwashing device and an automatic control system. Based on the reaction principle of electrofiltration / ozone coupling, the water treatment system is compact in structure and simple and convenient to operate. The system is used for water treatment, wherein the treatment efficiency is high, and the effect is good.
Owner:HOHAI UNIV

System for detecting performances of electrofiltration equipment

The invention discloses a system for detecting the performances of electrofiltration equipment, and the system mainly comprises a pollution particle generation and electrostatic processing device, a particle concentration measurement device, and a power supply and electric field measurement device. The pollution particle generation and electrostatic processing device mainly comprises a filter, a blower fan, a particle injector, and the electrofiltration equipment. The particle concentration measurement device mainly comprises an attenuation chamber and an aerosol spectrograph. The power supply and electric field measurement device mainly comprises a DC high-voltage source, a DC low-voltage source, a high-voltage voltage-dividing resistor, a current probe, an ampere meter, and a voltmeter. The system enables the power supply, electric field measurement and particle concentration measurement of the electrofiltration equipment to be integrated, is simple and convenient in operation, is low in instrument cost, and is complete, simple and reliable in performance measurement of the electrofiltration equipment.
Owner:CHANGZHOU XIAOGUO INFORMATION SERVICES

Electrode for electrochemical filtration water treatment as well as preparation method and application thereof

The invention discloses an electrode for electrochemical filtration water treatment as well as a preparation method and application of the electrode. The electrode comprises MXene and a catalytic component for modifying the MXene, and can also comprise a carbon material, and the electrode structure is film-shaped. The prepared electrode is large in specific surface area and good in water permeability, and an electric filtration system constructed by the electrode is high in substance mass transfer efficiency and high in oxidation-reduction reaction rate on the surface of the electrode. Meanwhile, the MXene is modified by utilizing composite metal or metal oxide, and new catalytic reactions such as Fenton-like oxidation can be initiated in the electrochemical reaction process, so that the removal of pollutants is enhanced. Metal elements can also be complementary in the chain type catalytic reaction process, so that the activity of the catalyst and the water treatment efficiency are improved. The membrane electrode disclosed by the invention is simple and convenient to prepare and efficient in treatment, has multiple functions of adsorption, electric conduction, catalysis and the like, and is suitable for water treatment by an electrochemical filtration system.
Owner:HOHAI UNIV

An electrostatic precipitator and a supply air device

The invention relates to an electrostatic precipitator (20), wherein the electrostatic precipitator comprises a non-metallic electrostatic filter (21) and the particle charging unit. The particle charging unit comprises one or more corona needle chargers (22) arranged in a distance from each other, wherein each of the needle chargers (22) have a tip;a guide surface (23) for surrounding each of theone or more needle chargers; wherein low power is arranged to be used for forming a wide electric field between a tip of the corona needle charger and the surrounding guide surface for ionizing particles of a gas stream passing through the formed wide electric field. The invention also relates to a supply air device comprising the electrostatic precipitator.
Owner:ALME SOLUTIONS OY

Electromechanical filter template rapid generation method, system and equipment and storage medium

The invention discloses an electromechanical filter sample plate rapid generation method, system and device and a storage medium, and the method comprises the steps: S1, inputting preset developing scheme data, and obtaining a scheme table; s2, drawing an electromechanical model; s3, generating an electromechanical system and / or filter template through the scheme table and the electromechanical model. Under the condition that the filter does not need to be created manually, the working efficiency is greatly improved; meanwhile, the error rate is greatly reduced, and the use cost is also reduced. The scheme is simple and efficient, and when the scheme of the filter is changed, related personnel can quickly make adjustments and obtain required results.
Owner:CONSTR COMPANY OF CHINA RAILWAY NO 8 ENGNEERING GRP +1

Long-acting electrified filter material and electrostatic filter dust remover

The invention relates to the technical field of filter dust removers and specifically discloses a long-acting electrified filter material and an electrostatic filter dust remover. The filter materialcomprises at least one of a pure conductive fiber felt, a conductive fiber blended felt, a conductive fiber laminating felt, a conductive coating filter felt, a conductive rib filter felt, a metal netfilter felt and a magnetron sputtering electroplated metal layer filter felt. The long-acting electrified filter material is simple in preparation process and low in gram weight, and the raw materialcost is reduced. Meanwhile, the dust remover is low in operation resistance, large in flux, easy to remove dust, long in service life, convenient to replace and low in operation cost.
Owner:WUYI UNIV

Device for purifying a gaseous medium loaded with particles

The invention relates to a device for purifying a gaseous medium loaded with particles comprising a shell (11) closed at the ends thereof by an end plate (31) protected by a disjoined shell (70), an electrostatic filtration chamber (20) having a passage for the gaseous medium loaded with particles; said chamber (20) comprising an emissive structure (40) comprising serrated plates (42) forming tips(47) directed towards a collecting structure (50) on either side of said emissive structure (40) and designed to trap the particles contained in the gaseous medium; said end plate (31) and said shell(70) are each brought to a different predetermined potential so as to create an electric repulsion field in the vicinity of said end plate (31), directed towards said passage.
Owner:丹尼尔特布尔 +1

Method for separating charged biologically active substances from liquids and the recovery thereof

ActiveUS20190344220A1Low level of retentionCharging potentialMembranesVacuum evaporation coatingMetal coatingPolymer
The present invention relates to a method for the at least temporary retention of charged biologically active substances such as endotoxins, viruses, and proteins from liquids, and optional later release for better determination. The object is achieved by a method for the at least temporary separation and / or detection of charged biologically active substances in a liquid by means of electrosorption and / or electrofiltration, comprising the following steps: a. providing a polymer membrane with a flat and porous metal coating at least on a first side of the polymer membrane; b. providing a counterelectrode; c. applying a voltage between the metal coating of the polymer membrane and the counterelectrode; d. bringing the polymer membrane and the counterelectrode into contact with the liquid, with the contacting being performed such that the liquid generates at least one connection between the polymer membrane and the counterelectrode.
Owner:I3 MEMBRANE

Method for selectively separating anions and cations in salt-containing wastewater by coupling electric field with composite electrofiltration membrane

The invention discloses a method for selectively separating anions and cations in salt-containing wastewater by coupling an electric field with a composite electrofiltration membrane. According to the method, after a composite anion electrofiltration membrane and a composite cation electrofiltration membrane are coupled with the electric field, the separation of anions and cations in the salt-containing wastewater can be realized; the composite anion electrofiltration membrane consists of a porous ceramic layer, a metal matrix layer and an electrochemical hydrogen evolution layer; the composite cation electrofiltration membrane is composed of a porous ceramic layer, a metal matrix layer and an electrochemical oxygen evolution layer, according to the method, selective separation of zwitterions and anions in the salt-containing wastewater is achieved, meanwhile, water and ions are used for producing hydrogen and oxygen and obtaining acid-base products, deep treatment and efficient resource utilization of the salt-containing wastewater are achieved, the treatment process is simple and easy to control, the voltage used in the separation process is low voltage, and high economic benefits are achieved.
Owner:KUNMING UNIV OF SCI & TECH

Integrated water treatment equipment and water treatment process using biofilm and electric filtration

The invention provides an integrated water treatment equipment combining a bio-membrane with an electric filter. The integrated water treatment equipment comprises a sewage regulation chamber, a bio-membrane method sewage treatment chamber and an electric filtration treatment chamber, wherein a screen mesh is respectively arranged at a water inlet and a water outlet of the sewage regulation chamber; bio-membrane fillers are laid in the bio-membrane method sewage treatment chamber; an aeration head is laid at the bottom of the bio-membrane method sewage treatment chamber; multiple sets of electric filtration devices arranged in parallel are arranged in the electric filtration treatment chamber; an inclined flow mud fender is arranged at the water inlet of each set of the electric filtration device; a micron reticulated ruthenium titanium anode and a stainless steel microporous cathode are arranged in each set of the electric filtration device. The integrated water treatment equipment provided by the invention removes pollutants with a bio-membrane method; the membrane method has characteristics of relatively large biomass, long sludge age and less residual sludge; the electric filtration treatment chamber is mainly used for sludge-water separation; each electric filtration device is composed of a microporous anode and cathode, and has effects of filtration, gas electrolysis self-cleaning, microorganism killing and the like after application of voltage.
Owner:CHINA CONSTR THIRD BUREAU GREEN IND INVESTMENT CO LTD

Cyclone electrofiltration recovery device and application thereof in treatment of heavy metals in sludge

The invention provides a rotational flow electro-percolation recovery device and application of the rotational flow electro-percolation recovery device to treatment of heavy metal in sludge. The device comprises a cylinder body, an anode bar, a rotational flow unit, a filtering combination layer and a catholyte circulation system, the catholyte circulation system comprises a catholyte chamber and a circulation pipeline; a sludge inlet and a sludge outlet are respectively formed in two axial ends of the cylinder body, the cylinder body comprises an inner cylinder and an outer cylinder, a filter combination layer and a catholyte chamber are arranged between the inner cylinder and the outer cylinder, the anode bar is arranged in the cylinder body, and the filter combination layer comprises a cation permeable membrane far away from the inner cylinder. The application comprises the following steps: 1, filling a catholyte chamber with the catholyte, and electrifying the rotational flow electro-filtration recovery device; 2, feeding sludge into the rotational flow electro-filtration recovery device through a sludge inlet by adopting a sludge pump so as to remove heavy metals. The method is applied to removal of heavy metals in sludge, is simple to operate, and has the technical advantages of high removal efficiency, low energy consumption and environmental protection.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

A kind of electrofiltration membrane and its preparation method and application

The invention provides an electric-filtering membrane, a preparation method and an application thereof, belongs to the technical field of membrane separation and particularly relates to the electric-filtering membrane with which concentration polarization and membrane pollution can be inhibited. The membrane is prepared through an immersing gel phase inversion method and an electric-conductive material is added during a preparation process of the membrane so that the membrane has an electrical conductivity. In practical use, the electric-filtering membrane can be connected to a single electrode or a double electrode of a power supply. When the electric-filtering membrane is connected to the single electrode, the concentration polarization and the membrane pollution are inhibited through Donnan effect and electrostatic repulsion by charges on a surface of the membrane. An electrode, which is connected to an opposite electrode, is arranged nearby the surface of the membrane to form an electrical field between the surface of the membrane and the electrode. Under an effect of the electrical field, the inhibiting effect by the electric-filtering membrane connected to the single electrode of the power supply on the concentration polarization and the membrane pollution are enhanced. When the electric-filtering membrane is connected to the double electrode, a current passes through the surface of the membrane to form the electrical field. Charged micro-particles and colloids are far away from the surface of the membrane under the effect of the electrical field so that the effect of inhibiting the concentration polarization is achieved.
Owner:KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products