73results about How to "Efficient purification treatment" patented technology

The invention provides a three-stage pressure-reducing V-shaped hydraulic cyclone air floatation device which is applied to efficient treatment of oil-containing sewage and industrial wastewater. Gas-liquid phase current tangentially enters a three-stage cyclone to form rotary motion, oil, gas and water are separated in a centrifugal force field, water is thrown into a water collecting barrel, meanwhile the pressure is reduced gradually and momentarily by virtue of a three-stage cyclone cone and guide vanes, and sump oil is attached to micro-bubbles and is brought into an oil collecting pipe, so that efficient purification treatment of production water is realized; the treatment capacity can be adjusted by changing the axial distances among different stages of cyclones, so that the device is wide in application range; a back flushing cleaning liquid is used for flushing a tank body comprehensively by virtue of a flushing pipe, so that a component self-flushing function is realized; liquid-carrying air current is turned into clean gas by means of triple separation of a liquid collector, a rectifier and a screen liquid filter, so that a gas self-cleaning function is realized; a pressure safety valve, a liquid-level-difference transmitter and a liquid level control valve are arranged, so that the automatic degree of the device is increased; the entire set of device is compact in structure, and easy to install, operate and maintain.

The invention relates to a low-temperature evaporation treatment method and treatment apparatus for industrial effluent. The low-temperature evaporation treatment method comprises the following steps: step 1, pretreatment; step 2, cyclic evaporation of the industrial effluent; step 3, high-voltage narrow-pulse electro discharge treatment; step 4, salt formation and recovery; step 5, condensation of exhaust gas; and step 6, discharging of the exhaust gas. The invention also provides the apparatus for treating the industrial effluent by using the low-temperature evaporation treatment method. The apparatus comprises a pretreatment system, a low-temperature evaporation system, a direct-current high-voltage narrow-pulse discharge system, a chemical washing tower, a steam condenser and an exhausting system which are successively connected. The treatment method and treatment apparatus provided by the invention have the advantages that the treatment method and treatment apparatus can treat a wide variety of effluent and waste water; treatment can be carried out according to difference of components of effluent, and only a small amount of solid residues are produced after treatment; operation cost is low; toxic substances like dioxin are not produced; and treatment method and treatment apparatus are especially applicable to treatment of high-concentration, highly-contaminated and hardly-biodegradable organic effluent and waste water and to treatment of chemical effluent, medicinal effluent, pesticide effluent and garbage leachate.

The present invention discloses a purification system for rubber exhaust gas in the sealing strip production field. The system comprises a plurality of sets of gas-collecting hoods mounted on an exhaust gas generating station, a whirl water film dust removal tower, a cyclone oxidation tower, a depth purification tower, an ozone generator, a circulating water pump system, an induced draft fan, and a gas exhaust apparatus; the gas-collecting hoods, the whirl water film dust removal tower, the cyclone oxidation tower, the depth purification tower, the induced draft fan, and the gas exhaust apparatus are communicated sequentially through pipelines; the ozone generator is connected with the whirl water film dust removal tower; the circulating pump system comprises a first circulating pump connected with the whirl fluid water film dust removal tower, a second circulating pump connected with the cyclone oxidation tower, and a third circulating pump connected with the depth purification tower. According to the purification system for rubber exhaust gas in the sealing strip production field disclosed by the invention, carbon black particles, and foul exhaust gas components in a rubber processing process are effectively removed, thereby solving the problem of difficult purification of rubber exhaust gas in the sealing strip production field.

The invention discloses a foul gas deodorization process for a brewery sewage treatment plant. The foul gas deodorization process comprises an active soil filter bed, a gas-liquid separation layer anda biological deodorization filter tank, wherein the gas-liquid separation layer is arranged above the biological deodorization filter tank; one side of the gas-liquid separation layer is connected with a gas feeding pipe; a humidifier is mounted in the middle of the gas feeding pipe; a fan is arranged at one end of the gas feeding pipe; a cleaning pipe is mounted above the gas-liquid separation layer; a gas distribution device is arranged above the cleaning pipe; the active soil filter bed is arranged above the gas distribution device; the active soil filter bed is filled with a volcanic cushion layer, an active soil filler layer and a humus filler layer in sequence; a spraying pipe is mounted on the active soil filter bed; the top of the spraying pipe is connected with an exhaust pipe; one side of the biological deodorization filter tank is communicated with a liquid discharging pipe; a valve is fixed on the liquid discharging pipe; the other side of the biological deodorization filter tank is communicated with a biological nutrient solution through the valve. The foul gas deodorization process for the brewery sewage treatment plant is high in deodorization efficiency, mature instructural design, and very suitable for treatment of strong odor and a foul environment.

The invention discloses a filter felt for photocatalytic sewage treatment and a preparation method thereof. The filter uses cuprous oxide-plated mesoporous materials and titanium dioxide gel as photocatalysts, and filter felts as carriers to prepare high-efficiency water treatment filter felts with corresponding visible light and ultraviolet photocatalytic effects. The weight ratio of the composite material to the filter felt substrate is 500-50000ppm. The invention uses mesoporous materials and gel materials as catalyst carriers, effectively avoids catalyst loss caused by water flow, has the advantages of high catalytic efficiency and long duration of effect, and is especially used for treating printing and dyeing organic sewage.

The invention discloses a purification and recovery system for dichloromethane waste gas. The system comprises a water spray tower, a defogging tower, a first shell-tube condenser, an induced draft fan, a white oil absorption system, a white oil desorption system, a dichloromethane recovery system, a chilled brine circulation system and a wastewater storage tank. The white oil absorption system comprises an absorption liquid circulation tank, an absorption tower, and an absorption liquid circulation pipeline, wherein the absorption liquid circulation pipeline is provided with an absorption liquid circulation pump and a first spiral plate type condenser. The white oil desorption system includes a steam pipeline, a desorption liquid circulation tank, a desorption tower, and a desorbing liquid recycling pipeline, and the desorbing liquid recycling pipeline is provided with a desorption liquid circulation pump and a second spiral plate type condenser. The dichloromethane recovery system also comprises a second shell-tube condenser, and a dichloromethane phase separator. The purification and recovery system provided by the invention can effectively remove the dichloromethane waste gas containing some dissolved organic matter, and realize the recovery of dichloromethane, thereby solving the problem that the purification of the dichloromethane waste gas is difficult at present.

The invention relates to an aerosol particle processing method and aerosol particle processing equipment thereof. The steps of the aerosol particle processing method are as follows: firstly, atomizing the aerosol particle in the gas; secondly, intercepting and collecting the atomized gas At the same time, the atomized aerosol particles are separated into fine particles; finally, the fine aerosol particles are processed through physical purification to realize the purification of aerosol particles in the gas. The invention can be assembled and used simply according to environmental requirements, has high installation efficiency and wide application range, and can remove and purify atomized aerosol particles more thoroughly, purify gas (exhaust gas) more significantly, and better adapt to market promotion.

The invention relates to a first-class returning-water quality percolating and purifying device for a farmland. The first-class returning-water quality percolating and purifying device for the farmland structurally comprises a fixed support, percolating and purifying tanks, a water draining baffle plate, a nanometer purification net, water-blocking blocks, a nanometer composite material and a fixing bottom plate, wherein the fixed support is fixedly arranged on a farmland water draining port; three rows of grooves are correspondingly arranged on two sides of the support and are respectively apurification net installation groove, a baffle plate installation groove and a purification tank installation groove sequentially and correspondingly provided with the nanometer purification net, thewater draining baffle plate and the percolating and purifying tanks; during installation, the purification net installation groove is ensured to be installed on the farmland water draining inflow side; during an undrainage period of the farmland, the water draining baffle plate is inserted, and a water body pollutant near the water draining port can be degraded and removed through the nanometer purification net; during farmland drainage, the water draining baffle plate is taken down, and the water-blocking blocks are arranged in the purification tank installation groove according to a field water level requirement and are then overlapped and placed into the percolating and purifying tanks so as to form a column of percolating wall; the percolating and purifying tanks are open-type, so thatthe nanometer composite material can be conveniently updated and recovered.

The invention provides a device and process for purifying fried food waste oil based on a continuous mode, and relates to the technical field of edible oil treatment. The device comprises a shell, anoil inlet pipe, a first oil outlet pipe, a second oil outlet pipe, an overturning body located in the shell, and an overturning mechanism; filters are arranged at the oil inlet ends, located in the shell, of the first oil outlet pipe and the second oil outlet pipe; an oil suction cavity is formed in the overturning body, a first oil suction port and a second oil suction port which are communicatedwith each other are formed in the two ends of the overturning body respectively, and valve mechanisms in a normally-closed state are arranged at the first oil suction port and the second oil suctionport respectively; when the overturning body acts, the first oil suction port is attached to the filter at the oil inlet end of the first oil outlet pipe, the valve mechanism at the position is opened, or the second oil suction port is attached to the filter at the oil inlet end of the second oil outlet pipe, and the valve mechanism at the position is opened; and the oil suction cavity is communicated with an external negative pressure pump pipeline. Edible waste oil obtained after deep frying of food is used is subjected to efficient impurity removal treatment, so recycling of the edible waste oil is facilitated.

The invention discloses a photocatalytic water purifier based on solar energy driving. The water purifier is used for emergency situations. The water purifier comprises a control panel, linkage bar mechanisms, a solar panel, a secondary water tank, a primary water tank, a housing, an ultraviolet lamp module, a photocatalytic module, a water pump, a water pipe, a water quality monitoring device, a phase change heating module, an ultrasonic wave generation device, and the like. According to the invention, a combined purification manner of ultrasonic purification and photocatalytic technologies is adopted, double-effect water purification is realized, and outlet water quality is improved. An optical guide medium is adopted as the housing of the ultraviolet lamps, such that ultraviolet light can be evenly spread out. Ultraviolet light loss is reduced, such that the number of ultraviolet lamps can be reduced, and the power consumption of the water purifier is reduced. The water purifier adopts solar energy driving and phase change heating temperature control, such that overall energy consumption of the water purifier is further reduced, and purification efficiency is improved. The water purifier has a simple overall structure, and is convenient to carry. The water purifier is suitable for various environments, especially areas such as disaster areas and remote arctic areas.

The invention discloses a rural sewage treatment biofilter which comprises a treatment tank, a sedimentation bin, a purification bin and a disinfection bin are sequentially arranged in the treatment tank from top to bottom through a first partition plate and a second partition plate, two threaded rods are symmetrically and rotatably mounted in the sedimentation bin through bearings front and back,and a movable base is arranged between the two threaded rods in a penetrating mode; a storage box is fixedly arranged on the movable base, a discharging box is arranged below the movable base, a finefilter screen is arranged on the lower portion of an inner cavity of the sedimentation bin, a quartz sand filter layer is further arranged between the fine filter screen and the second partition plate, a flow dividing box and a honeycomb type biological filler frame are sequentially arranged in the purification bin from top to bottom, and a first water outlet is formed in the second partition plate; the end, away from the second partition plate, of the first water outlet extends into the flow dividing box. The biofilter is simple and reasonable in structural layout, convenient to use, capableof rapidly and efficiently purifying sewage, high in efficiency and good in effect, completely meets the harmless discharge standard, and has important practical significance for rural sewage treatment.

The invention discloses a floating sewage treatment device for purifying black and odorous water. The floating sewage treatment device comprises a ship hull, ecological treatment bed combiners, a secondary sedimentation tank and ecological islets. The ecological treatment bed combiners comprise first-layer ecological beds, second-layer ecological beds, third-layer ecological beds, fourth-layer ecological beds, fifth-layer ecological beds, sixth-layer ecological beds, seventh-layer ecological beds and eighth-layer ecological beds which are sequentially stacked from top to bottom, each ecological bed is sequentially provided with a water inlet chamber, a filler chamber and a water outlet chamber, and electronic pacemakers are arranged on the side walls of the filler chambers; water outlets are formed in the water outlet chambers, the water outlet chambers of the upper-layer ecological beds are communicated with the water inlet chambers of the corresponding lower-layer ecological beds via the corresponding water outlets, the filler chambers of the first-layer ecological beds are filled with PVC (polyvinyl chloride) fillers, the filler chambers of the second-layer ecological beds, the fourth-layer ecological beds and the eighth-layer ecological beds are filled with cobble with different particle sizes, the filler chambers of the third-layer ecological beds are filled with ceramsite materials, the filler chambers of the fifth-layer ecological beds are filled with gravel, the filler chambers of the sixth-layer ecological beds are filled with mixtures of gravel and activated carbon, and the filler chambers of the seventh-layer ecological beds are filled with ceramsite materials. The floating sewage treatment device has the advantages that the floating sewage treatment device is high in efficiency and low in energy consumption and cost, and the black and odorous water can be uninterruptedly stably treated by the floating sewage treatment device for a long term.

In order to efficiently carry out the purification treatment after maintenance, at the same time, the completion of the purification treatment can be reliably known, the time required for the purification treatment can be shortened, and the CVD apparatus can be restored. Gas with high coefficient and inert gas are used as purge gas. In the purification process before the formation of the semiconductor film, the evacuation and the introduction of the inert gas are repeated many times. In addition, in order to judge the appropriate maintenance period of the semiconductor manufacturing apparatus which performs corrosive gas processing in the reaction chamber, the maintenance period of the corrosive gas is determined according to the change of the water concentration when the corrosive gas processing is repeated.

The invention discloses a prefabricated pumping station used for sewage pretreatment, and belongs to the field of sewage treatment. The prefabricated pumping station comprises a pumping station main body; the pumping station main body is provided with a water inlet and a water outlet; the water outlet is communicated with an immersible pump; a first separating plate and a second separating plate are arranged in the pumping station main body; a precipitation zone is formed between the first separating plate and the water inlet; a film processing zone is formed between the second separating plate and the first separating plate; the immersible pump is arranged between the second separating plate and the water outlet; a membrane assembly used for purifying sewage is arranged in the film processing zone. A plurality of groups of bio-membrane are arranged in the film processing zone, and an aeration pipe communicated with a blower is arranged below the bio-membrane, so that the aeration pipeand the bio-membrane are used for high efficiency purifying of sewage in the film processing zone, the content of pollutants in sewage discharged through the water outlet is reduced greatly, and sewage processing station processing burden is reduced.