75results about How to "To achieve the purpose of water purification" patented technology

The invention discloses a biogas slurry ecological purification method based on microalgae cultivation. The method comprises the following steps: (1) biogas slurry pretreatment; (2) habituated culture of autotrophic microalgae, namely, obtaining algae strains capable of rapidly growing in 70%-100% biogas slurry; (3) preparation of a seed solution; (4) a biogas slurry purification method during growing of microalgae, namely, after expanded cultivation, inoculating the habituated algae species into an open photobioreactor for cultivation, obtaining chlorella biomass growing by high density through a semi-continuous culture method and optimized methods such as fed-batch cultivation, and purifying the biogas slurry; (5) biochemical breaking of microalgae cell walls, namely, introducing the microalgae cells into a biochemical wall breaking pool, putting freshwater fish into the pool, and obtaining algae slurry subjected to wall breaking; and (6) collection of the microalgae cells and recycling of the biogas slurry. According to the method, not only is a method provided for purifying the biogas slurry, but also the obtained algae cells and the biogas slurry can be recycled, so that ecologicalization treatment of the biogas slurry is realized, the environment is improved, and furthermore, the economic and social benefits are produced.

The invention discloses a triazone pesticide wastewater up-to-standard emission synergistic salt recycling treatment method and belongs to the technical field of pesticide wastewater treatment. The method comprises the following steps: separately collecting and treating wastewater of a triazone pesticide preparation process, performing combined treatment of microelectrolysis-Fenton oxidation-neutralization and sedimentation treatment and UASB (Upflow Anaerobic Sludge Blanket) and aerobiotic activity sludge on wastewater of an intermittent dichloropinacolin production section, performing resinadsorption treatment on wastewater of a triazone production section, recycling sodium chloride, finally combining effluents of the two modes, and accessing to a garden tube network for garden management. By adopting the triazone pesticide wastewater up-to-standard emission synergistic salt recycling treatment method disclosed by the invention, efficient and stable treatment on high-salt, high-COD(Chemical Oxygen Demand) and biorefractory wastewater is achieved, and the purpose of up-to-standard emission of triazone pesticide wastewater is achieved; the method is simple and convenient to operate and has the advantages of high efficiency, low consumption, high stability, convenience of maintenance, and the like, and sodium chloride in the wastewater can be recycled and reused.

The invention provides a method for treating blue-green algae. The method includes the following steps of detecting a water body, placing padding and plants, mounting oxygenation devices, domesticating microorganisms, adjusting the water body, putting compound microorganisms, building an ecological system and strengthening treatment; wherein the water body to be treated is detected, pretreatment is conducted, a proper amount of water is taken to serve as habituated culture water for inhibiting external microbial communities for the algae, compound bacteria, enzymes and sugar are added to the habituated culture water, meanwhile, screening is conducted on the beneficial microorganisms three times to five times according to the existence condition of original indigenous and beneficial microorganisms of the water body, the screened beneficial microorganisms are extracted to be subjected to enlarge cultivation, the cultured composite microorganisms are put into the water body required to be treated, the composite microorganisms can destroy the blue-green algae structure, and accordingly, a proper growth breeding condition is provided for follow beneficial microorganisms and animals. According to the main mechanism of the method, the blue-green algae structure is mainly destroyed and utilized, and the method has the advantages of being advanced, reliable, safe, operable, low in investment and capable of generating the effect quickly and finally achieving the purpose that the water quality is purified.

The invention discloses an ultramicro bubble water purification device which comprises a floating body device floating on a water surface, a guiding device arranged below the water surface and a diving flow-pushing device arranged below the water surface, wherein a micro-nano bubble generation device, a controller and a pressure swing adsorption oxygen generation device are arranged on the floating body device; the floating body device comprises a buoy floating on the water surface, fixed plate faces on the buoy and anchors for controlling the whole floating body device to a certain position on the water surface; the micro-nano bubble generation device comprises a water inlet unit, a gas-liquid mixing unit and a bubble jet unit. The ultramicro bubble water purification device provided by the invention is simple in structure and convenient to use, can solve the problems that a water purification device at present is insufficient in oxygen increasing and damages natural water ecological environment and is high in energy consumption, can greatly reduce energy consumption and quickly increase dissolved oxygen in the water, and does not cause the damage of the whole water ecological environment while changing the living environment of aquatic lives in water.

The invention relates to the technical field of polluted water body improvement, and discloses a method for microorganism and aquatic plant cooperative purification of a polluted water body; the method comprises the following steps: A, the tube interior of a microorganism slow-release tube is filled with a compound microorganism preparation; B, the microorganism slow-release tube is applied in the polluted water body or bottom mud by aquatic plants; and C, along with the growth of the aquatic plants, microorganisms in the microorganism slow-release tube are gradually released and are attached to submerged plants, and a biofilm is formed. The microorganism and aquatic plant cooperative purification of the polluted water body is adopted. The microorganism slow-release tube filled with the compound microorganism preparation is adopted, on one hand, stability and washing resistance are greatly improved, on the other hand, the load capacity of microorganism bacteria and the proliferation of the microorganism bacteria are improved, and in general, the purpose of increasing the efficiency of wastewater treatment is achieved.

The invention discloses a gold nanoparticle / graphene nano composite material which is prepared by a chemical assembly method for gold nanoparticles and graphene, and a directional freeze-drying methodis used for preparing the gold nanoparticle / graphene nano composite material into a gold nanoparticle / graphene three-dimensional light-heat (steam) conversion material. The material can efficiently convert light energy into heat energy, so that water can be quickly heated into water vapor to finally achieve the water purifying purpose, and therefore, various functions such as seawater desalting,fractionation, sterilization and sewage treatment are realized.

The invention relates to the field of sewage treatment, and particularly relates to a layered double-metal hydroxide, a composite membrane, an application of the composite membrane, and a suction filtration device. A peroxymonosulfate compound is activated by using the layered double-metal hydroxide, then sulfate radical free radicals with strong oxidizing capability are generated, organic pollutants in wastewater are oxidized and degraded, and theus the purpose of water purification is achieved. Furthermore, the composite membrane is further arranged, so that the wastewater purification effect can be improved through the synergistic effect of the layered double-metal hydroxide and the nanofibers, and the purification rate is accelerated.

The invention discloses a sewage treatment system of an artificial wetland. The sewage treatment system comprises two sedimentation tanks which are arranged in parallel, wherein reversing valves are arranged in front and back of the two sedimentation tanks respectively; a dreg discharging hole is formed in the bottom of each sedimentation tank; a grating well, an aeration adjusting tank, a hydrolytic acidification tank, a contact oxidization tank and a wetland purification tank, an aeration wetland purification tank and a disinfection tank are arranged at the downstream of the sedimentation tanks through pipelines; the grating well is internally provided with a coarse grating and a fine grating in sequence from a water inlet to a water outlet; a pressure sensor and a negative-pressure suction nozzle are arranged at a water inlet side of the fine grating; the negative-pressure suction nozzle is connected onto a retractable rod; the negative-pressure suction nozzle is clung to the fine grating; the grating well is communicated to the aeration adjusting tank through a water inlet pipe; a filter screen is obliquely arranged in the aeration wetland purification tank; a plurality of grades of composite packing wetland regions are arranged above the filter screen; a free falling water height difference is formed between two adjacent grades of composite packing wetland regions. By optimizing a structure and a material, the purification efficiency of sewage is greatly improved and the sewage treatment system is not easy to block.

The invention discloses a complex organism filtering system which comprises a box body, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are arranged outside the box body; a water pressure gauge is arranged on the water inlet pipe; the box body is divided into five independent purifying areas; the water inlet pipe is connected to the upper part of the first purifying area; the bottom of the first purifying area is communicated with the bottom of the second purifying area, and the upper part of the second purifying area is communicated with the bottom of the third purifying area through a pipeline; the fourth purifying area is positioned above the second purifying area and the third purifying area; the bottom of the fourth purifying area is communicated with the upper part of the third purifying area while the upper part of the fourth purifying area is communicated with the bottom of the fifth purifying area; the water outlet pipe is connected to a water outlet at one side of the fifth purifying area; and sewage draining ports for flushing silt and precipitated particle are arranged at the bottoms of the second purifying area and the third purifying area. The complex organism filtering system is simple in structure, convenient to use, good in filtering effect, high in cost performance, environment-friendly and natural.

The invention discloses a fast demulsification flocculant for a well cleanout truck of an oil field. The flocculant consists of a dendritic nonionic demulsification agent, a polymeric flocculant and a macromolecular ion settling agent in a weight ratio of 1: (1-5): (0.1-1). During use, the dosage is 50ppm, the dehydrating temperature is 30 DEG C, the dehydrating rate after 1 hour is greater than 99%, the discharge sewage is clear in color, the suspended solids are less than or equal to 3mg / L, and the median particle diameter is less than or equal to 1.5 microns. The oil content is less than or equal to 5mg / L, and the flocculant has the advantages of being few in medicament dosage, fast in settling speed and low in using temperature. Compared with a field compound flocculant, the performances of a flushing fluid settled for 1 hour cannot satisfy the requirement of field reinjection water.

The invention discloses a wood-based composite material for photo-thermal purification of sewage as well as a preparation method and application of the wood-based composite material, and belongs to the technical field of photo-thermal conversion. According to the method, after wood is subjected to vacuum impregnation through an MOF precursor solution, a metal organic framework material grows in wood pore channels, and the wood-based composite material for photo-thermal evaporation and heavy metal ion removal is prepared. The polydopamine photo-thermal material in the composite material can convert a solar spectrum into heat energy, so that purified water evaporation is efficiently carried out; the wood substrate can effectively reduce heat conduction loss, heat concentration is achieved, and the photo-thermal conversion efficiency is improved; in addition, the hydrophobic property of the wood accelerates the transmission and evaporation of water; the porous MOF nano material can adsorb pollutant ions. The aim of removing ions in the sewage is fulfilled. The composite material provided by the invention is low in preparation raw material cost, simple and convenient in process, high in repeatability and easy for large-scale production, and has a wide application prospect in multidisciplinary crossing fields such as seawater desalination and sewage purification.

The invention relates to the technical field of water purification, and discloses a water purifying device convenient to clean. The water purifying device convenient to clean comprises a water inlet pipe, a valve is arranged on the water inlet pipe, one end of the water inlet pipe is communicated with a filter box, a telescopic cylinder is arranged inside the filter box and fixedly connected with a cleaning block, the bottom of the filtering box is fixedly provided with a motor, an output shaft of the motor is fixedly connected with a filter vat, a waterproof case sleeves the outer side of the motor, and the bottom of the waterproof case is fixedly connected with a filter screen. According to the water purifying device convenient to clean, the movement of the telescopic cylinder drives the cleaning block to clean the outer wall of the filter vat by arranging the telescopic cylinder inside the filter box and arranging the cleaning block on the telescopic cylinder, by a communicating pipe arranged in a sediment box, a first-level settling pond, a second-level settling pond and a third-level settling pond sleeve the communicating pipe, each settling pond can be dismantled, and moreover, under the condition of damage, the settling ponds can be dismantled at any moment, and does not influence precipitation.

The invention discloses a drilling oil-containing wastewater treatment device, and belongs to the field of oilfield oil-containing wastewater treatment. The device is composed of a device housing, a sediment scraping machine, a coagulation air floatation module, a fiber rotary disc filtering module, a ruthenium-iridium coating electrolysis module and an activated carbon filtering module. The treatment technology comprises the five steps of water quality regulation, coagulating sedimentation, filtering, oxidation and activated carbon adsorption. The drilling oil-containing wastewater treatmentdevice is suitable for treatment of drilling oil-containing wastewater, and the problem about water environment pollution caused by over-high content of oil, suspended solids and COD in the drilling oil-containing wastewater is solved.

The invention discloses a conveniently dismounted and cleaned water purifying method. A water purifying device comprises a water purifying device body, the water purifying device body comprises a water purifying tank, the top of the water purifying tank is connected with a water purifying seal cover, the internal of the water purifying tank comprises a tank body, the internal of the water purifying seal cover comprises a cover body, a water purifying chamber is arranged in the water purifying device body, and a lower fixed pedestal and an upper fixed roof seat are respectively arranged in thewater purifying chamber. Water purifying dirt at the top of a water purifying filter plate can be conveniently cleaned to separate a top plate from a biological purifying tank in order to open a biological water source purifying chamber, so a biological purifying membrane in the biological water source purifying chamber can be conveniently cleaned; and a purifying adsorber can be conveniently taken out through an insert opening, so the purifying adsorber can be conveniently cleaned and replaced to achieve convenient dismounting, thereby the problem of influences of increase of internal dirt onthe water source purifying effect of the water purifying device in the water purifying process of existing water purifying devices is effectively solved.

The invention relates to a tandem-type removing method for oxidative pollutants in shallow groundwater. The method is implemented by constructing three tandem restoration zones comprising a heterotrophy restoration zone, a combined restoration zone and a plant ecological purification and restoration zone. Firstly, modified smashed cotton stem, which is utilized as a heterotrophy biological membrane carrier and a solid sustained-release carbon source, and the like are utilized to perform denitrification treatment to reduce nitrates and generate carbon dioxide at the same time, thus providing an inorganic carbon source for subsequent autotrophy denitrification. Packing balls and a nanometer iron-composite-packing mixed bed generate hydrogen. By utilizing the carbon source generated above, and utilizing the hydrogen as an electron donor and utilizing a fiber membrane as a biological membrane carrier, the hydrogen is utilized by microorganism on the biological membrane surface, the nitrates are reduced into nitrogen, and high-valence heavy metals in the groundwater are reduced by the hydrogen, thereby achieving an objective of water purification. The method has advantages comprising hydrogen autotrophy denitrification without need of providing additional hydrogen or carbon dioxide, the high utilization rate of hydrogen, good treatment effects, no secondary pollution, etc. over the prior art.

The invention discloses a magnetic ferroferric oxide nano particle and graphene composite. The specific surface area of the composite is 60-65m<2> / g, in the composite, ferroferric oxide particles are 10-35nm in size, and ferroferric oxide supports graphene flaky materials, so as to ensure that the flaky materials are stacked up to form gaps, and the gaps are 20 to 100 nm. The composite provided by the invention is used for wastewater treatment, the ferroferric oxide in the composite not only can be used for effectively removing chrome in wastewater, but also cannot produce sludge and cause secondary pollution. Moreover, due to the strong adsorbability of graphene, nano particles and suspended solids can be removed and waste water can be purified well. The invention provides a method which can control sewage in a cheap, reliable and recycling way. A hexavalent chromium ion absorbed composite is taken as an electrocatalyst for being applied to counter electrodes of a dye-sensitized solar cell, therefore, refuse reclamation is achieved, waste is reduced, and resources are saved.

The invention discloses a small drinking water emergency treatment device, and relates to the technical field of drinking water purification devices. The small drinking water emergency treatment device comprises a water inlet segment, a rotary tube head, an ultra-filter tube segment, an activated-charcoal column tube segment and a water drainage segment, which are sequentially connected. Filter head cotton gauze is arranged between the water inlet segment and the rotary tube head, and a sealing ring is arranged between the rotary tube head and the ultra-filter tube segment. The small drinking water emergency treatment device has a simple structure and can purify water in time to cause residents to use safe water when the local is polluted.

The invention discloses a turbid matter and dirt removal water quality purification device for underground water. The turbid matter and dirt removal water quality purification device is characterizedby comprising an outer tube, an inner tube, a mixing unit, a flocculation unit, a filtering unit, an aeration unit and a water collection unit, wherein the outer tube is a sealed tube body; the innertube is arranged in the outer tube in a suspended way through an insertion and connection opening formed in the top of the outer tube; the top of the inner tube is sealed; the filtering water flow realizes the circulation with the inside of the outer tube through the bottom of the inner tube; a first automatic exhaust valve is arranged on the top of the inner tube; a second automatic exhaust valveis arranged on the top of the outer tube. The structural design has the advantages that the turbid matter and dirt removal can be realized without great height differences; the problem of elevation arrangement difficulty is solved. The device can realize the multifunction of mixing, flocculation, filtering, aeration, reverse flushing and the like; the problems of great occupied area, elevation arrangement difficulty and pipeline connection complexity of a conventional turbid matter and dirt removal facility are also solved.

The invention relates to an automatic back flushing type water dispenser, which comprises a water inlet pipe, the water inlet pipe passes through a shell and isto be connected to the left end of a tee, the right end of the tee is connected to a horizontal pipe, the lower end of the tee is connected to a vertical pipe, the horizontal pipe is connected to filter elements through a water main and first connectors, the upper part of the side of one filter element is connected to the vertical pipe through a second connector, and the lower part of the side of the filter element is connected to a purified water pipe and a tap through a third connector; the filter elements are mounted on a rotary disk, a water output device is arranged on the bottoms of the filter elements, a motor is mounted on the bottom of the shell, the output shaft of the motor is connected to a rotary shaft, and the rotary shaft is connected to the rotary disk. The invention solves the problem that conventional water purifiers need to be stopped for cleaning after being used for a period of time.

The invention discloses a storage method of Zizania, which comprises the following steps: sorting of Zizania; disinfection of storage utensils; preparation of alum water; soaking management. After applying the alum powder, put it in a sterilized water storage tank or storage box, and control the temperature at 1-3°C; the alum powder mentioned in it is of chemical grade; adopt the technical scheme of the present invention to ensure that the wild rice stem is in a sterile or low-bacteria state. In a clean environment, it can keep fresh for a long time. The water content of Zizania itself is low, and the environment is clean, which can meet the freshness of Zizania and is suitable for long-term storage.

The invention relates to the field of rainwater purifying, and especially relates to a rainwater collecting and purifying device. The device comprises a rainwater receiving frame, a water purifying system and a water storage barrel, the rainwater receiving frame is an inverted round table-shaped structure, the rainwater receiving frame is provided with a rainwater channel penetrating through the upper surface and the lower surface of the rainwater receiving frame, the water storage barrel is arranged at the lower end of the rainwater receiving frame, the water storage barrel is connected withthe lower edge of the rainwater receiving frame, a cover plate is arranged at the bottom of the rainwater receiving frame, the water purifying system includes a pH regulating assembly and a purifyingfilter assembly, the pH regulating assembly is arranged on the cover plate, the purifying filter assembly comprises a water inlet tube, a multilayer purifying layer and a water outlet tube, the waterinlet tube is fixedly connected to the lower part of a through hole, the purifying layer is fixedly connected to the water inlet tube, the water outlet tube is arranged on the purifying layer, and a pH sensor for sensing the pH value is also arranged in the rainwater receiving frame. The device can remove and collect various impurities and pollutants in rainwater.

The invention discloses a PLC-based swimming pool circulating water treatment system. The system comprises a swimming pool, and further comprises a first circulating pump, a hair collector, a filter sand cylinder, a multi-medium filtering device, a urea treatment device, a water quality monitor, a disinfectant feeding device, a first PH adjusting device, a second PH adjusting device, a heat exchanger, a second circulating pump, an overflow tank and a balance tank. A plurality of drainage ports are formed in the bottom of the swimming pool, anti-vortex embedded parts are installed at the drainage ports, the drainage ports are communicated with an inlet of the first circulating pump, an outlet of the first circulating pump is communicated with an inlet of the hair collector, an outlet of thehair collector is communicated with an inlet of the filter sand cylinder, a flocculating agent feeding device is further arranged between the hair collector and the filter sand cylinder, and an outlet of the filter sand cylinder is communicated with an inlet of the multi-medium filtering device. The system has the advantages that water in the swimming pool can be circularly purified, water resources are saved, and the purification effect is good.

The invention relates to the incinerator slag treatment technology field, in particular o an incinerator slag treatment system and an incinerator slag treatment method. The incinerator slag treatmentsystem comprises a sewage circulation treatment unit, water pumps, a water supply pipe, a first valve, a second valve, a third valve, a first jigging machine, a second jigging machine and a sand washing machine, wherein a water inlet end of the water supply pipe is connected with a water outlet end of the sewage circulation treatment unit, a water outlet end of the water supply pipe is connected with a water inlet end of the sewage circulation treatment unit, the water supply pipe is provided with a first water outlet, a second water outlet and a third water outlet, the first water outlet is connected with a water inlet end of the first jigging machine, the second water outlet is connected with a water inlet end of the second jigging machine, and the third water outlet is connected with awater inlet end of the third jigging machine. According to the incinerator slag treatment system and the incinerator slag treatment method, the use quantity of the water pumps used in the incineratorslag treatment system can be reduced, construction cost of the incinerator slag treatment system can be reduced, and the incinerator slag treatment method is high in treatment efficiency, low in treatment cost, high in resource utilization rate and convenient to manipulate, and facilitates large scale treatment for incinerator slags.

The invention discloses a bottled drinking water purifier comprising an acrylamide graft copolymer, activated carbon, porous solid silicate and poly aluminum chloride, and the sum of the weight of theacrylamide graft copolymer, the activated carbon, the porous solid silicate and the poly aluminum chloride is in the range of 20-50g / L. The acrylamide graft copolymer, the activated carbon, the porous solid silicate and the poly aluminum chloride are mixed and superimposed to obtain the bottled drinking water purifier, the poly aluminum chloride is used for electrical neutralization with colloidal substances in drinking water and selective adsorption of soluble substances, the bottled drinking water purifier is prepared by the method of grafting copolymerization of natural high molecules with acrylamide, by compounding with other adsorbents harmless to human beings and animals for water purification, the aim of water purifying is achieved, and the purified drinking water does not contain aluminum elements harmful to human body. The drinking water purifier is easy to carry and use, and the method of preparing the drinking water purifier is simple, convenient and easy to operate.

The invention discloses a full-quantitative treatment process for landfill leachate, which specifically comprises the following steps of: (1) adjusting the physicochemical properties of landfill leachate, and filtering the landfill leachate; (2) adding the pretreated landfill leachate into a nitrosation-anaerobic ammonia oxidation integrated bioreactor for biochemical treatment; (3) performing reverse osmosis treatment on the landfill leachate subjected to biochemical treatment through a reverse osmosis membrane to obtain a concentrated solution and a first clear solution; (4) adding a softening agent into the concentrated solution for softening treatment to obtain a softened concentrated solution; (5) evaporating the softened concentrated solution to obtain a second clear solution; and (6) mixing the first clear solution and the second clear solution, and discharging the mixed clear solution after the mixed clear solution reaches the standard. The landfill leachate is sequentially subjected to pretreatment, biochemical treatment, reverse osmosis treatment, softening treatment, evaporation treatment and subsequent treatment, so that most pollutants in the landfill leachate are separated out, the purpose of purifying water is achieved, the water is pure, and the energy consumption is ultralow.

The invention discloses a rural domestic sewage purification groove device, which comprises a groove body, wherein the inside of the groove body is separated into a primary purification groove region,a secondary purification groove region and a tertiary purification groove region through first separation plates; the inside of the secondary purification groove region is separated into an anaerobicdigestion groove region, an aerobic digestion groove region, a material water purification groove region and a clean water precipitation groove region through the first separation plates; the insideof the tertiary purification groove region is separated into a gravel purification groove region, a zeolite purification groove region, a sterilization groove region and a plant purification groove region through the first separation plate; a water inlet, a grid opening and a grid door are arranged at the left side surface of the primary purification groove region; the grid door is moveably connected with the grid opening formed in the left side surface of the primary purification groove region so as to seal or open the grid opening; a filtering grid is arranged inside the primary purificationgroove region and is positioned on the same horizontal plane as the grid opening; a water outlet is formed in the right side surface of the plant purification groove region. The rural domestic sewagepurification groove device has the advantages that the structure is simple and convenient; the operation is easy; the water quality treatment is sufficient; the landscape function is realized.

The invention discloses a biological treatment device for flushing sewage. The biological treatment device for the flushing sewage comprises a toilet, a high-level water tank and a flushing sewage treating machine, wherein the high-level water tank is arranged above the toilet; the flushing sewage treating machine is arranged below the toilet; a recycled water recycling procedure is added between the high-level water tank and the flushing sewage treating machine; and the flushing sewage treating machine comprises an upper decomposition groove, a lower settling groove, a middle stirring device and a filtering material filled in the decomposition groove. The biological treatment device for the flushing sewage biologically degrades sewage by the novel spiral staggered filtering material so as to purify water, saves water by over 90 percent through the recycled water recycling procedure, and achieves the effect of zero emission of sewage.

The invention discloses a high-efficiency purification system of papermaking sewage, which mainly comprises four parts, i.e. an integrated processor 1, a sludge accumulation condenser 2, a separation purifier 3 and a prefilter 4. The high-efficiency purification system also comprises auxiliary electrical appliances for sewage purification, such as a sewage pump, a motor, a pharmaceutical mixer, an electric valve, a water level switch and the like. The four sewage purification devices are main body parts of the whole high-efficiency purification system, are mainly communicated through sewage pipelines, and can finally achieve the purpose of rapid sewage separation and purification through sequential separation of passing sewage. The structure is characterized in that the sludge accumulation condenser 2 and the separation purifier 3 are closed low-pressure tanks (wherein the tank bodies are made of steel plate, stainless steel plate or glass fiber reinforced plastics). Due to the combination of the high-quality active ore filtering medium and the automatic program-controlled operation of the electrical appliances, the invention has the advantages of small size, small occupied area, high purification speed, high efficiency and the like. Moreover, the invention reasonably combines the high technology of physical and chemical principles and the special active ore filtering medium, thereby further improving the sewage separation and purification.