74results 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 invention discloses a water-washing dust-cleaning horizontal type mesh cage dust removing machine, which mainly comprises a plurality of parts, i.e., a horizontal type rotary mesh cage, a sealed type dust accumulating chamber, an automatic water mist spraying device and a helix sewage disposal device, wherein the horizontal type rotary mesh cage is a filtering unit main body which can be composed of one to more mesh cages; the mesh cages are arranged in parallel inside the dust accumulating chamber; one or more layers of filtering cloth wrap on the mesh cages; and the mesh cages are driven to rotate slowly by a transmission device. The dusty gas is led into the sealed dust accumulating chamber by a fan or a draught pipe; and during the process that the dusty gas penetrates through the filtering cloth on the mesh cages and is discharged out from a discharge port, the dust is captured by the filtering cloth, while the clean air permeates through the filtering cloth and is discharged out from ports of the mesh cages. A V-shaped water tank is arranged at the lower part of the dust accumulating chamber; a water level of certain height is maintained; and the dust accumulated on the filtering cloth is washed when the mesh cages swashes with water while rotating backwards, so that the purpose of automatic dust cleaning is achieved.

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 an ammonia-nitrogen wastewater treatment system and process based on a PTFE (polytetrafluoroethylene) deamination membrane component. The system comprises a microfiltration system, an agent adding box, a membrane deamination system device, an ammonium recycling system device and a heat exchange component. The process includes: removing suspended matter in ammonia-nitrogen wastewater through the microfiltration system; utilizing a sodium hydroxide solution to adjust pH value of the wastewater; utilizing a sealed heating circulating water tank to heat the wastewater to separate ammonium; utilizing the PTFE deamination membrane component to deaminate the wastewater, and discharging the wastewater; converting collected ammonium into an ammonium sulfate solution by the ammonium recycling system device to realize recycling conversion of ammonia-nitrogen. By using the system and the process, capability of treating industrial wastewater and domestic wastewater is improved greatly; the system and the process have efficient deamination purification effect on high-concentration ammonia-nitrogen wastewater, and has extremely high recycling conversion rate to ammonia-nitrogen waste, thereby being capable of promoting comprehensive development of petroleum chemical industry of China and of great significance in treating water pollution and environment pollution caused by wastewater discharging in China.

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 belongs to the technical field of air purification application and particularly discloses a large-sized air purification device for offices. The large-sized air purification device comprises a bottle-shaped shell, an exhaust fan, a ceramic filter element, a pure-plant filtering layer and a suction ventilating fan, wherein the exhaust fan, the ceramic filter element, the pure-plant filtering layer and the suction ventilating fan are arranged in the bottle-shaped shell from top to bottom. The bottle-shaped shell comprises a bottle mouth, a bottle belly and a bottle bottom, a supporting base is arranged on the bottle bottom, the exhaust fan is arranged in the bottle mouth, a ceramic filter element supporting seat is arranged on the inner wall of the bottle belly, the pure-plant filtering layer and the suction ventilating fan are arranged on the bottle bottom, and the bottle bottom is provided with air vents. The large-sized air purification device has the advantages that the exhaust fan, the ceramic filter element, the pure-plant filtering layer are arranged in the bottle mouth, the bottle belly and the bottle bottom respectively, the offices or large conference rooms can be subjected to purification treatment quickly and efficiently, health of a user is protected, and the large-sized air purification device is convenient to assemble, disassemble, clean and maintain by the aid of an embedded connection structure of the bottle mouth, the bottle belly and the bottle bottom.

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 treatment method and aerosol particle treatment equipment. The aerosol particle treatment method comprises the following steps: firstly, performing atomization treatment on aerosol particles in gas; secondly, intercepting and collecting the atomized aerosol particles, and simultaneously, separating the atomized aerosol particles into fine particles; andfinally, performing physical purification treatment on the fine aerosol particles so as to realize purification of the aerosol particles in gas. The aerosol particle treatment equipment can be simplyassembled and used according to environmental requirements, is high in mounting efficiency and wide in application range, can more thoroughly clear the purified and atomized aerosol particles, has amore obvious effect on purifying gas (waste gas), and better adapts to marketing promotion.

The invention discloses a dust purification treatment device for building construction, and relates to the technical field of the building construction. The dust purification treatment device for thebuilding construction comprises a bottom plate. One side of the top of the bottom plate is fixedly connected with a filtering box. The top of the bottom plate is fixedly connected with a box positioned at one side of the filtering box. The top between two sides of the inner wall of the filtering box is fixedly connected with a support plate, and one side of the top of the support plate is fixedlyconnected with a dust collector. One end of an air draft port of the dust collector is communicated with an air draft pipe. The dust purification treatment device for the building construction is capable of, through fixedly connecting the dust collector to one side of the top of the support plate, preventing an external air environment from being polluted, achieving the protection to the externalair environment, thereby guaranteeing the body health of people, and is beneficial to the living environment of the people. One end, extended to the exterior of the filtering box, of the air draft pipe is fixedly connected with a suction nozzle, so the adverse effect to the later absorption and purification of an organic waste gas is prevented.

A method of treating bilge water by combining Fenton's reagent with potassium hydrogen persulfate and microorganism includes the steps of (1) regulating pH of bilge water to 2 to 4, adding Fenton's reagent to perform oxidation treatment, regulating pH to be larger than 7 after reaction, and standing to remove precipitation, wherein oxidation treatment by Fenton's reagent can be repeated; (2) regulating pH of the bilge water oxidized through Fenton's reagent to be smaller than 7, adding potassium hydrogen persulfate, and reacting 1 to 2h at the temperature of 50 to 60 DEG C; (3) adding microorganism liquid to react for 24 to 72h so as to remove ammonia nitrogen in water. The method is special for purification treatment on bilge water, is simple in technological operation and has good decontamination effect on bilge water. Besides, no extra catalysts are needed to be added during reaction, the reaction rate is high, bilge water can be treated into a low-pollution, dischargeable and even recyclable water resource, and the method fills in the blank of bilge water treatment of ships at present.

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 method for treating eutrophication substances in sewage through artemia culture. The method includes the following steps that S1, a treating pond is built, and salt lake brine is injected into the treating pond; S2, to-be-treated sewage is injected into the treating pond in a continuous or semi-continuous mode, and the net evaporation speed of a water body in the treating pond and the injection speed of the to-be-treated sewage are kept same; S3, the salinity of the water body in the treating pond is adjusted and kept 6 baume to 14 baume, nutrient substances in sewage are used, microalgae, microorganisms and the like are cultured to serve as baits of artemia, artemia in the water body in the treating pond is cultured, and nitrogen and phosphorus eutrophication substances are removed in sewage from water by catching artemia. By means of the method, it is achieved that the eutrophication substances in sewage are efficiently and continuously purified, zero discharging of the eutrophication substances is achieved, artemia produced in the water purifying process is high-quality baits for culturing animals and raw materials in cooperation with feed, and objective economic benefits can be created.

The invention discloses air purification equipment for an air return port of a central air conditioner in the enclosed space. The air purification equipment comprises an air port variable-diameter frame, a machine body, a pre-filter net, an electrostatic adsorption module and a front baffle plate, wherein the air port variable-diameter frame is used for connecting the machine body on the air return port of a central air conditioning unit; the machine body is connected with the pre-filter net, the electrostatic adsorption module and the front baffle plate in order from an inner layer to an outer layer; and the electrostatic adsorption module comprises a shell and a plurality of electrode plates arranged along the shell from front to back, and the electrode plates are parallel. An air inletis formed in the front end of the shell, and air outlet is formed in the rear end of the shell. The plane with the electrode plates is parallel with the flowing direction of air in the shell. The airpurification equipment has the technical advantages of reasonable structural design, low resistance, high load capacity, high purifying rate, etc.

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 provides a method for preparing an inorganic macromolecule flocculant polysilicate ferric zinc from copper tailing slag. Specifically, the copper tailings are heated, stirred, and allowed to stand under the action of acid and hydrogen peroxide to dissolve the copper tailings; the supernatant with the dissolved copper tailings is mixed with an acidic sodium silicate solution, and then stirred, reacted, and aged and other steps to obtain the inorganic polymer flocculant polyzinc iron silicate. The invention adopts the waste copper tailings as raw materials to prepare the polysilicate iron-zinc flocculant, which can greatly reduce the cost, and also utilizes the waste copper tailings.

The invention discloses a treatment method capable of effectively purifying black and odorous water in a city. The method successively comprises the following steps: detecting positions of black and odorous water in the city and classifying according to pollution conditions; mounting a pollutant intercepting device in a polluted river channel and intercepting the black and odorous water in the river channel; arranging an oxygenation device in a downstream river channel of the pollutant intercepting device; mounting artificial aquatic plants in a downstream river channel of the oxygenation device; and mounting a sewage conveying pump in an upstream river channel of the pollutant intercepting device. Through the treatment method, the problems of long treatment time and low efficiency causedby not separating clear water from the sewage when the black and odorous water in the city is treated in the prior art are solved; the treatment method capable of effectively purifying the black and odorous water in the city is used for efficiently purifying the black and odorous water in the river channel of the city; the problem that the water in the river channel of the city is black and odorous can be effectively solved; the content of oxygen dissolved in the purified water is increased; meanwhile, the organic matter pollution in the purified water can be greatly reduced.

The invention discloses a shrimp larva raising sewage treatment system, which includes a culture sewage pool, an aeration pool and a sedimentation pool. The discharge outlet of the culture sewage pool is communicated with a corresponding inlet of the aeration pool through a discharge pipeline. The discharge outlet of the aeration pool is connected to the sedimentation pool through a pipeline. The activated sludge discharge outlet of the sedimentation pool is communicated with a corresponding inlet of the aeration pool through a reflux pipeline. The system disclosed in the invention has the advantages of simple structure and no pollution, and can realize high efficiency purification treatment on shrimp larva raising pool sewage.

The invention discloses an air purifying device, a ventilating system and a rail train. The air purifying unit comprises a purifying unit, both sides of the purifying unit are respectively connected with a gas inlet and a gas outlet; the purifying unit is formed by linking multiple purifying modules arranged side by side in series; the purifying module includes a discharge reactor, and a discharge zone of the discharge reactor is provided with a light catalytic unit; the discharge reactor discharges to generate low-temperature plasma body, and the low-temperature plasma is synergistic with light catalyst, and polluted air is purified through the purifying module. Low-temperature plasma technology is combined with the photocatalysis technology, and thereby overcoming the influence of the light catalyst deactivation on purifying efficiency after using for a long time, and solving the problem of secondary pollution caused by incomplete product degrading when the low-temperature plasma technology is used independently, and further improving the purifying efficiency and the service life of the light catalyst layer.

The invention discloses an all-in-one commercial lampblack purifying machine which comprises a purifying box. A fume inlet is formed in the left side of the purifying box, and a fume inlet pipeline ismovably arranged on the left side of the fume inlet. A fume outlet is formed in the right side of the purifying box, and a fume outlet pipeline is movably arranged on the right side of the fume outlet. A water inlet pipe is arranged at the top of the purifying box, and one side of the bottom of the purifying box is fixedly connected with an oil and water collecting bucket. The bottom of the oil and water collecting bucket is fixedly connected with a connecting pipe. As lampblack has the characteristic of being easy to condense water vapor, harmful substances in the lampblack can be effectively adsorbed by water mist; and the lampblack is filtered and adsorbed, so that oil stain and harmful substances in the lampblack are removed again, and therefore exhaust gas is prevented from pollutingatmosphere. Meanwhile, filtered oil and water are separated through an oil and water separator, so that the drained water cannot pollute land and rivers, and waste oil can be collected and disposed.

The invention discloses a solid waste treatment system adopting plasma gasification. The solid waste treatment system adopting plasma gasification comprises a furnace body, a drive assembly driving the furnace body to self-rotate, a charge device located at one side of the furnace body, a discharge device located at one side of the furnace body, and a knocking assembly, wherein the knocking assembly is movably arranged on the furnace body, the furnace body self-rotating in a working state drives the knocking assembly to regularly knock the furnace body, and when the furnace body self-rotates by one cycle, the knocking assembly at least knocks once; and the discharge device is connected with a smoke treatment device. The solid waste treatment system adopting plasma gasification realizes continuous efficient incineration treatment on hazardous waste, is capable of synchronously removing ash or waste residue attached into the furnace body, and realizes efficient purification treatment onwaste gas which is in a high-temperature state, contains long-chain nitric oxides, and is generated by the solid waste treatment system adopting plasma gasification.

The invention relates to an offshore wind power generation comprehensive rescue apparatus. The apparatus comprises a power generation apparatus, a rainwater collection apparatus, a foam chamber, an air supply component, a filtration adsorption chamber, an evaporation condensation apparatus and a purification post-processing apparatus. Through specific installation of each component of the apparatus, the apparatus is placed on the sea as a whole, electricity can be stored through wind power generation and solar power generation, a part of the stored electricity can be used for the apparatus itself, and the other part of the electricity can be stored. At the same time, rainwater can be collected and treated, seawater can be desalinated by a condensation manner in the rainless season, the treated rainwater or seawater is stored in a storage room, when water needs to be used, a valve is opened, and the treated water in the storage room can be directly drunk after final disinfection treatments. According to the apparatus, the collection and use of clean energy can be realized, and the purpose of marine rescue can be achieved. At the same time, the collection and treatment of marine garbage can be carried out.

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 an incineration furnace waste gas treatment system. The incineration furnace waste gas treatment system comprises a multi-incineration furnace (1), an oil and smoke separator (2), a plasma smoke treatment device (3) and a spraying type cooling tower (4). Smoke generated after garbage is incinerated in the multi-incineration furnace (1) is sequentially treated through the oil and smoke separator (2), the plasma smoke treatment device (3) and the spraying type cooling tower (4) and then discharged out of the atmosphere. By adoption of the technical scheme, garbage can besufficiently combusted, the generated smoke is subjected to efficient purification treatment; and in the whole system, the equipment structure is simple, and the manufacturing cost is low.

The invention discloses a waste incineration power station flue gas purification treatment device which comprises a flue gas purification device, a flue gas heating device, an SCR denitration device and a flue gas air preheater, an inlet of the flue gas purification device is used for being connected with a garbage incinerator. An outlet of the flue gas purification device is connected to an inletof the flue gas heating device, an outlet of the flue gas heating device is connected to an inlet of the SCR denitration device, an outlet of the SCR denitration device is used for being connected toa chimney after passing through the flue gas air preheater, and the flue gas air preheater is used for being connected with the garbage incinerator. In this scheme, the efficient purification of theflue gas is effectively ensured; preheating of the flue gas air preheater is achieved through flue gas waste heat, steam heating of the flue gas heating device meets the temperature rising requirementof SCR denitration, air is heated, multiple purposes are achieved through one steam, and therefore consumption of auxiliary steam of a power station is reduced, the power generation amount of the power station is increased, and meanwhile the requirement for ultra-clean emission of flue gas is met.

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.