36results about How to "Improved purification" patented technology

The invention discloses a method for producing potato flake with high dietary fiber content. The method comprises the following steps: after the byproduct of wet potato residue generated through flour-residue separation during potato starch production is subject to acid base interaction, oxidation or enzymolysis and micronization, the micronized dietary fiber of potato is mixed with mashed potatoes obtained through steaming, boiling and smashing in a certain content ratio, the mixture is dried through a roller dryer, the moisture content in the product is smaller than or equal to 10 percent, and the potato flake rich in dietary fiber is produced after crushing and sieving. The method of the invention is suitable for being implemented in whole potato processing production enterprises, the produced potato flake is rich in an excess amount of dietary fiber and can be used as an auxiliary material for processing other foods, therefore, the economic value of the byproduct of starch production, i.e., wet potato residue is greatly increased, and pollution to the environment is reduced.

A filtration unit (A) is immersed in raw water (W) that is held inside a reservoir tank, and includes a membrane module (5) that filters the introduced raw water (W). This filtration unit (A) includes a casing (3) which is in the shape of a box having a bottom and includes the membrane module (5) housed therein, and an activated carbon cartridge (4) inside which activated carbon is provided in cartridge form. Inside the casing (3) are provided an intake port that is used to introduce the raw water into the interior of the casing, and an opening / closing device that is installed on this intake port and controls a flow of the raw water into the interior of the casing, and the activated carbon cartridge (4) side and the membrane module (5) side are separated so as to allow the raw water (W) introduced into the interior of the casing 3 to circulate from the activated carbon cartridge (4) side to the membrane module (5) side.

The invention provides a sewage treatment agent with a slow release function. The sewage treatment agent comprises the following components in parts by weight: 30-45 parts of dephosphorization flocculant, 15-25 parts of slow release agent and 50-60 parts of solid carrier. The invention aims to provide the sewage treatment agent with the slow release function. The dephosphorization flocculant is effectively and continuously released after the sewage treatment agent reaches the middle and lower layers of sewage, a dephosphorization effect can be achieved while the continuous addition of chemicalagents can be avoided, so that an efficient and stable dephosphorization effect can be achieved.

The invention discloses a water quality purification device for coping with point source water pollution and a purification method thereof. The device comprises a purification tank body; the purification tank body comprises a central tank and an outer ring tank; the outer ring tank is equally divided into a rough filtration purification half tank and a fine filtration purification half tank by a partition plate; one end of the rough filtration purification half tank is connected with a water inlet in the outer wall of the purification tank body through a pipeline, and the other end is communicated with a water injection mesh formed in the central tank; an aeration net pipe is arranged at the bottom in the central tank, a biological filter material floating plate is arranged above the central tank, and a plurality of groups of clamping holes are formed in the biological filter material floating plate; the upper end of the water quality purification assembly is communicated with a flow guide pipe through a telescopic hose, the flow guide pipe is connected with a water injection port formed in one end of a fine filtration purification half tank, and the other end of the fine filtration purification half tank is communicated with the outside through a water outlet formed in a purification tank body. The travel paths of rough filtration and fine filtration can be effectively improved, and the aeration treatment effect of the biological filter material is improved, so that the sewage quality purification treatment effect is improved.

The invention relates to the technical field of water purification, and in particular to a settling pool surface suspended matter sucking and filtering system in order to solve the technical problems in the prior art that in design of a deslagging system, a deslagging tank must be considered, the design is not flexible enough, and the application range is narrower. The settling pool surface suspended matter sucking and filtering system comprises a sucking device which is connected with a pipeline, a water filtering and circulating tank and an auxiliary jet pipeline, wherein the sucking device is used for sucking a water body in a settling pool and conveying the water body to the water filtering and circulating tank; the water body after being filtered by the water filtering and circulating tank flows to the auxiliary jet flow pipeline; a part of water body in the auxiliary jet pipeline can be jetted out and is used for driving scum on the surface of the settling pool to flow to the sucking device. According to the settling pool surface suspended matter sucking and filtering system disclosed by the invention, the technical problems that in design of an existing deslagging system, the deslagging tank must be considered, the design is not flexible enough, and the application range is narrower are solved.

The invention discloses a plasma enhanced chemical vapor deposition treatment method which comprises the following steps: sequentially carrying out stabilizing treatment, depositing treatment, hydrogen removing treatment, purifying treatment and flaking treatment on a wafer substrate, and obtaining a thin film on the wafer substrate. The method also comprises the step of carrying out purifying treatment between the depositing treatment and the hydrogen removing treatment. When the method is used for depositing the thin film on the wafer substrate every time, the hydrogen content of the surfaceof the thin film is removed, thus the tension stress of the finally obtained thin film on the wafer substrate is increased.

The invention discloses a filter assembly of a drinking water processor, which relates to the technical field of drinking water treatment. It is composed of biological cotton layer, quartz sand layer, ceramic filter element, granular activated carbon filter element, ultrafiltration membrane filter element, reverse osmosis membrane filter element and connecting pipeline. A polypropylene fiber filter screen is arranged on the pipeline, a magnetized body is arranged in the ultrafiltration membrane filter element, and an infrared lamp or an ultraviolet lamp is arranged inside the reverse osmosis membrane filter element. A filter assembly of a drinking water processor and a pretreatment method thereof. The component selection and design are reasonable, and a pretreatment step is specially added, the purpose of which is to improve the filtration efficiency of each component in the filter assembly, so that the purification treatment of drinking water can be significantly enhanced.

The invention discloses a multi-stage microfluidisation and deep filtration integrated type improved anaerobic filter. A water distribution area, a strong microfluidisation filler area, a weak microfluidisation filler area, a filtration filler area and a water outlet area are arranged inside the anaerobic filter from bottom to top in sequence; the volume of particulate fluidization fillers evenly arranged in the strong microfluidisation filler area accounts for 50-60% of the volume of the strong microfluidisation filler area, and the volume of particulate fluidization fillers evenly arranged in the weak microfluidisation filler area accounts for 30-50% of the volume of the weak microfluidisation filler area; a methane pipeline is arranged above the water outlet area and communicated with a methane collection system, a water inlet system and a circulating moisture system are arranged outside the anaerobic filter, and both the water inlet system and the circulating moisture system are communicated with the water distribution area. By means of the circulating moisture system, a turbulent relation is generated between the weak microfluidisation filler area, the strong microfluidisation filler area and aqueous phase, so that a microfluidisation effect is generated in the filler areas, mass transfer effect is improved, and the probability of generation of channel streams, short streams and dead zones in the filter is reduced.

The invention discloses multi-use environment-friendly water treatment equipment and belongs to the field of environment-friendly water treatment. The multi-use environment-friendly water treatment equipment comprises a water inlet pipe, a coarse filtering pond, a fine filtering pond, an anaerobic pond, a first anoxic pond, an aerobic pond, a second anoxic pond, a membrane pond and a water outletpipe; the coarse filtering pond, the fine filtering pond, the anaerobic pond, the first anoxic pond, the aerobic pond, the second anoxic pond, the membrane pond and the water outlet pipe are sequentially communicated with one another; the fine filtering pool is a vertical filtering pipeline; the interior of the pipeline is rotationally connected with a filter net; the upper end of the filter net is communicated with a backwashing device; a sewage pond is in a cylinder shape; the middle position in the sewage pond is provided with a rotary shaft; a helical blade is fixedly connected to the rotary shaft and is provided with multiple water leakage holes; the outer surface of the rotary shaft is provided with multiple holes; the holes are connected with a flocculant device through a pipeline in the rotary shaft; and the flocculant device is arranged in the rotary shaft. By adopting the multi-use environment-friendly water treatment equipment provided by the invention, sewage is subjected to a series of sewage treatment processes, so that comprehensive purification treatment of the sewage is realized, and the purification degree of the sewage is increased.

The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device for industrial production. The sewage treatment device comprises a box body, wherein a water inlet pipe is fixedly arranged above the left side wall of the box body; a water inlet valve is fixedly arranged on the outer side wall of the water inlet pipe; a mud discharging pipe is fixedly arranged under the left side wall of the box body. The sewage is subjected to three-stage purification treatment which is sequentially precipitation, sterilization disinfection and toxic substance removal; a vertical type inclined plate device is used in precipitation to perform primary filtering on industrial sewage; through a space formed among a plurality of inclined plates, the industrial sewageis subjected to multiplex filtering; impurities with great sizes in the sewage are removed; then, a heater is used for performing high temperature disinfection and sterilization on the sewage; finally, an electrolyzer is used for performing electrolysis on the industrial sewage, so that heavy metal elements contained in the sewage take oxidization and reduction reaction to produce nontoxic compounds; then, secondary filtering is performed through a filtering plate; next, the water is discharged; the sewage purification treatment is improved.

The invention discloses a water pollution filtering and purifying device, and belongs to the field of sewage purifying. The water pollution filtering and purifying device comprises a water inlet pipeand a coarse filtering tank, a fine filtering tank, a settling tank, a microorganism purifying tank, a disinfection tank, an aeration tank, a membrane tank and a water outlet pipe which are sequentially communicated; the other end of the water outlet pipe is connected with a pure water inlet of a centrifugal filtering device, the centrifugal filtering device comprises a water purifying device, anda pure water outlet is formed in the bottom end of the water purifying device; a purifying layer comprises a non-woven fabric layer, an agent particle layer and an immobilized microorganism layer from outside to inside in sequence, and a fixing skeleton is connected with the middle of the purifying layer in an inserted mode. Sewage is subjected to a series of sewage treatment processes, so that comprehensive purifying treatment of the sewage is achieved, and the sewage purifying degree is improved.

The invention discloses an efficient steam and hot water boiler. The efficient steam and hot water boiler comprises a boiler body, a combustion chamber, a heating water tank and support legs, wherein the bottom end of the boiler body is supported by the plurality of support legs; the combustion chamber is disposed inside the boiler body; the heating water tank is disposed inside the combustion chamber; a cold water inlet pipe passing through the boiler body is disposed on the upper left end of the heating water tank, and a hot water outlet pipe passing through the boiler body is disposed on the lower right end of the heating water tank; a fire grate is disposed on the bottom end of the combustion chamber; an ash residue chamber is disposed on the lower end of the fire grate; a smoke exhaust pipe is disposed at the right side of the top end of the combustion chamber; the smoke exhaust pipe passes through a top surface of the boiler body; a steam chamber is formed between the boiler body and the combustion chamber; a steam outlet pipe is disposed in the middle of the top end of the boiler body. As the heating water tank and the steam chamber are disposed inside the efficient steam and hot water boiler, hot water and steam can be simultaneously provided for a user, exhausted smoke gas is filtered and purified, the pollution of the boiler waste gas to air is greatly reduced, and the efficient steam and hot water boiler has the advantages of efficiency and energy saving, safety and reliability, simple and convenient operations.

The invention discloses an intelligent energy-saving industrial sewage treatment device comprising a bottom plate, a filtering unit, a hydroelectric generation unit and a sewage purification unit; water pump support frames are symmetrically arranged in the middle of the upper surface of the bottom plate; a water pump is arranged at the upper end of the water pump support frames; a storage batteryis arranged at the left front end of the upper surface of the bottom plate; the filtering unit is arranged at the left part of the upper surface of the bottom plate; a sewage outlet in the bottom endof the right wall of the filtering unit is connected with a water inlet of the water pump through a pipeline; the hydroelectric generation unit is arranged on the left side of the upper surface of thebottom plate; the right end of the hydroelectric generation unit is rotationally connected with the filtering unit through a bearing. According to the intelligent energy-saving industrial sewage treatment device, solid-liquid separation can be carried out on industrial sewage, electric energy used by an electric appliance can be generated through hydroelectric generation, the energy-saving purpose is achieved, purification treatment on the industrial sewage can be accelerated, and the purified sewage can be recycled as reclaimed water.

The invention discloses water purifying equipment with a sterilization function, and belongs to the field of sterilization. The water purifying equipment with the sterilization function comprises a water inlet pipe, a coarse filtering pool, a fine filtering pool, an anaerobic pool, a first anoxic pool, a second anoxic pool, an aerobic pool, a membrane pool and a water outlet pipe, wherein the coarse filtering pool, the fine filtering pool, the anaerobic pool, the first anoxic pool, the second anoxic pool, the aerobic pool, the membrane pool and the water outlet pipe are sequentially communicated; the fine filtering pool is a vertical filtering pipeline; a filtering net is rotationally connected in the pipeline; the upper end of the filtering net is communicated with a back flushing device;an ultraviolet sterilization device is arranged in the water outlet pipe; the ultraviolet sterilization device consists of a solar panel, a storage battery and an ultraviolet sterilization lamp. Sewage is subjected to a series of sewage treatment processes, so that the comprehensive purification treatment on the sewage is realized; the purification degree of the sewage is improved.

The invention discloses a processing method of waste well impoundment, which is characterized by the following: elevating well water to the ground through pump; injecting into path below well through drug pond with oxidizer, neutralizer and flocculant; removing oil, iron and acid; circulating water partially; filtering; proceeding electric dialysis; sterilizing; fitting for agriculture, industry and living water grade by grade.

The invention discloses a drinking water processor and relates to the technical field of drinking water treatment. Including: box body, water inlet, biological cotton layer, quartz sand layer, funnel, first water pipe, first filter element, second water pipe, second filter element, third water pipe, third filter element, fourth water pipe, fourth filter element, The water outlet, the fixed part and the universal wheel; the first water pipe is equipped with a polypropylene fiber filter; the water outlet is equipped with a valve; the third filter element is equipped with a magnetized body; the fourth filter element is equipped with a sterilizing component; The first filter element is a ceramic filter element; the second filter element is a granular activated carbon filter element; the third filter element is an ultrafiltration membrane filter element; the fourth filter element is a reverse osmosis membrane filter element; it can perform multiple filtrations for drinking water; Oxygen content, adjust the PH of the water to; kill bacteria in the water through the sterilizing component, to ensure the health of the human body.

The invention provides a rapid-decomposition formaldehyde purifying method, and relates to the field of formaldehyde purification. A rapid-decomposition formaldehyde purifying device comprises a pedestal, a shell is fixedly arranged at the top of the pedestal, a box body is fixedly arranged at a position, positioned at the left side of the shell, of the top of the pedestal through a fixed rack, ascrew is inserted to the left side of the box body, and one end, close to the shell, of the screw penetrates through one side of the box body and extends into the box body. A gas and a liquid in the formaldehyde purifying device can be conveniently mixed through a motor, a rotating disk, a connecting rod, a push rod, a plate body and reset springs, so the device can be conveniently used by a user,and formaldehyde can be conveniently purified. The method has the advantages of increase of the working efficiency of the formaldehyde purifying device, increase of the utilization efficiency of theformaldehyde purifying device, and convenience in use of the device by the user.

The invention discloses a sewage purification system of a rural garbage incineration purification furnace, belonging to the field of sewage purification. The sewage purification system comprises an inlet pipe, and a coarse filter tank, a fine filter tank, a sedimentation tank, a microbial purification tank, a disinfection tank, an aeration tank, a membrane tank and an outlet pipe which are communicated with each other in sequence, wherein the fine filter tank is a vertical filter pipe, the pipe is internally rotatably connected with a filter net, and the upper end of the filter net is communicated with a backwashing device; the membrane tank is internally provided with a first filter membrane and a second filter membrane, and a vibration device is arranged between the first filter membraneand the second filter membrane. Sewage is purified in all aspects through a series of sewage treatment processes, thereby improving the sewage purification degree.

A filtration unit (A) is immersed in raw water (W) that is held inside a reservoir tank, and includes a membrane module (5) that filters the introduced raw water (W). This filtration unit (A) includes a casing (3) which is in the shape of a box having a bottom and includes the membrane module (5) housed therein, and an activated carbon cartridge (4) inside which activated carbon is provided in cartridge form. Inside the casing (3) are provided an intake port that is used to introduce the raw water into the interior of the casing, and an opening / closing device that is installed on this intake port and controls a flow of the raw water into the interior of the casing, and the activated carbon cartridge (4) side and the membrane module (5) side are separated so as to allow the raw water (W) introduced into the interior of the casing 3 to circulate from the activated carbon cartridge (4) side to the membrane module (5) side.

The invention discloses a sodium carbonate dosing device for high brine treatment. The sodium carbonate dosing device comprises a dump sealed tank car, a sodium carbonate stock bin, a sodium carbonatemilk mixing tank and a sodium carbonate milk delivery pump, wherein a first feeding hole is formed in the top of the sodium carbonate stock bin, and a first discharging hole is formed in the bottom of the sodium carbonate stock bin; a second feeding hole is formed in the top of the sodium carbonate milk mixing tank; a second discharging hole is formed in the bottom of the sodium carbonate milk mixing tank; the first discharging hole and the second feeding hole are connected by a screw conveyer; the sodium carbonate milk delivery pump is connected with the second discharging hole; the sodium carbonate milk mixing tank is divided into a mixing area on an upper half part and a filtering area on a lower half part; the mixing area and the filtering area are partitioned by a partition plate; multiple diversion pipes in a vertical direction are arranged outside the sodium carbonate milk mixing tank; a check valve is arranged on the partition plate; and a filter layer is arranged between thepartition plate and a bottom plate of the sodium carbonate milk mixing tank. The sodium carbonate dosing device disclosed by the invention has the beneficial effects that impurities in a sodium carbonate solution can be filtered, the degree of automation is high, and the manual cost is low.

The invention discloses environment-friendly chemical engineering sewage treatment equipment, and belongs to the field of chemical engineering sewage treatment. The environment-friendly chemical engineering sewage treatment equipment comprises a water inlet pipe, a coarse filtering pool, a fine filtering pool, an anaerobic pool, a first anoxic pool, an aerobic pool, a second anoxic pool, a membrane pool and a water outlet pipe, wherein the coarse filtering pool, the fine filtering pool, the anaerobic pool, the first anoxic pool, the aerobic pool, the second anoxic pool, the membrane pool and the water outlet pipe are sequentially communicated; the fine filtering pool is a vertical filtering pipeline; a filtering screen is rotationally connected in the pipeline; the upper end of the filtering screen is communicated with a back flushing device; an ultraviolet sterilization device is arranged in the water outlet pipe; the ultraviolet sterilization device consists of a solar panel, a storage battery and an ultraviolet sterilization lamp. Sewage is subjected to a series of sewage treatment processes, so that the comprehensive purification treatment on the sewage is realized; the sewagepurification degree is improved.

The invention discloses a storage battery plant sewage purification device, belonging to the field of storage battery plant sewage purification. The storage battery plant sewage purification device comprises an inlet pipe, and a coarse filter tank, a fine filter tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank, a membrane tank and an outlet pipe which communicate witheach other in sequence, wherein the fine filter tank is a vertical filter pipe, the pipe is internally rotatably connected to a filter net, and the upper end of the filter net communicates with a backwashing device; the inlet pipe is provided with a plurality of rotating wheels which are connected with a power generation device by a rotating shaft, and the power generation device is electricallyconnected to a storage battery. Sewage is purified in all aspects through a series of sewage treatment processes, thereby improving the sewage purification degree.

The invention discloses a pretreatment method for a filter assembly of a drinking water processor, and relates to the technical field of drinking water treatment. The steps are as follows: the filter assembly is composed of biological cotton layer, quartz sand layer, ceramic filter element, granular activated carbon filter element, ultrafiltration membrane filter element, reverse osmosis membrane filter element and connecting pipeline; the pretreatment liquid is connected from the biological cotton layer, and the flow rate is maintained at 50mL / min, keep connected for more than 12 hours since all parts are fully impregnated; connect deionized water from the bio-cotton layer, keep the flow rate at 100mL / min, keep connected for more than 12 hours; then replace the deionized water with distilled water, and continue to maintain The same flow rate for more than 12 hours. A filter component of a drinking water processor and a pretreatment method thereof, the component material selection and design are reasonable, and a pretreatment step is added in particular, the purpose of which is to improve the filtration efficiency of each component in the filter component, so that the purification treatment of drinking water can be improved Significantly enhanced.

The invention discloses a mineralization ultrafiltration synthesis-based direct drinking water producing machine, and relates to the technical field of water treatment. The mineralization ultrafiltration synthesis-based direct drinking water producing machine comprises a water storage tank, a bottom cabinet, and coarse filtration purification equipment, fine filtration purification equipment and ultrafiltration purification equipment which are fixedly arranged inside the bottom cabinet, wherein the coarse filtration purification equipment communicates with the fine filtration purification equipment; the fine filtration purification equipment communicates with the ultrafiltration purification equipment; the ultrafiltration purification equipment is connected with a water supply pipe; the water supply pipe is connected with a direct drinking water tap and a reflowing pipe through a tee respectively; the reflowing pipe reflows purified water into the water storage tank for circulating purification; the water storage tank is internally filled with pure natural ore for purifying water naturally; a biochemical net-like isolating layer for performing coarse filtration on water is arrangedinside the coarse filtration purification equipment; a fibrous water inlet bag is fixedly arranged inside the fine filtration purification equipment; the ultrafiltration purification equipment is internally filled with an ultrafiltration membrane, so that the defects of short service life and poor water treatment effect of the ultrafiltration membrane in the prior art are overcome, the service life of the ultrafiltration membrane can be prolonged, and the water treatment effect is improved.

The invention discloses a tower type sewage purification device based on a spiral structure. The tower type sewage purification device comprises a tower body, wherein the tower body is of a cylindrical structure with an upper-end opening; a central shaft is arranged in the tower body; a spiral blade is arranged on an outer wall of the central shaft; the inner part of the tower body is separated into a spiral channel through the blade and the central shaft; a top cover is arranged at the upper end of the tower body and a water inlet is arranged on the top cover; a water outlet is arranged at the bottom of the tower body; separation plates are uniformly arranged on the blade; each separation plate is of a groove body structure with a U-shaped end face and is formed by bending a stainless steel wire net; an opening of each separation plate is connected with the upper surface of the blade and two ends of each separation plate are connected with an inner wall and the central shaft of the tower body; filler is filled into the separation plates; a strip-shaped opening is formed in the position, corresponding to a connection part of the separation plates and the tower body, of the outer wall of the tower body; and a filling door capable of being opened and closed is arranged at the outer side of the strip-shaped opening. By adopting the tower type sewage purification device based on the spiral structure, a sewage treatment process can be accelerated and the filler is convenient to clean and replace.

The invention discloses a domestic environment-friendly sewer sewage treatment device, and belongs to the field of sewer sewage treatment. The domestic environment-friendly sewer sewage treatment device belongs to an environment-friendly building material production sewage treatment device, and comprises a water inlet pipe, a fine filtering pool, a first anaerobic pool, an anoxic pool, an aerobicpool, a first membrane pool, a second anaerobic pool, an anoxic pool, a second membrane pool and a water outlet pipe, wherein the first anaerobic pool, the anoxic pool, the aerobic pool, the first membrane pool, the second anaerobic pool, the anoxic pool, the second membrane pool and the water outlet pipe are sequentially communicated; the other end of the water outlet pipe is connected with a pure water inlet of a centrifugal filtration device; an ultraviolet sterilization device is arranged in the water outlet pipe. Sewage is subjected to a series of sewage treatment processes, so that the comprehensive purification treatment on the sewage is realized; the sewage purification degree is improved.

The invention discloses an energy-saving environment-friendly sewage treatment device used for a cement plant, and belongs to the field of environmental friendliness. The energy-saving environment-friendly sewage treatment device used for the cement plant comprises a water inlet pipe and a coarse filtering tank, a fine filtering tank, an anaerobic tank, a first anoxic tank, a second anoxic tank, an aerobic tank, a membrane tank and a water outlet pipe which are sequentially communicated; the water outlet pipe is obliquely arranged, multiple electromagnets are arranged above the water outlet pipe at equal intervals, aeration devices are attracted under the electromagnets, the portions, under the aeration devices, of the water outlet pipe protrude downwards to form aeration device grooves, afiltering device is further arranged in the water outlet pipe, the filtering device is connected with the inner wall of the water inlet pipe through a sliding channel in the water outlet pipe in a sliding mode, switches is arranged on the sides, close to vertical water pipes, of the aeration device grooves, and multiple small holes are formed in the aeration device. Sewage is subjected to a series of sewage treatment processes, so that comprehensive purification treatment of the sewage is achieved, and the sewage purification degree is improved.

The invention discloses a live poultry slaughtering automatic cleaning environmental protection device, and belongs to the field of environmental protection. The live poultry slaughtering automatic cleaning environmental protection device comprises a water inlet pipe, and further comprises a coarse filter tank, a fine filter tank, an anaerobic tank, a first anoxic tank, a second anoxic tank, an aerobic tank, a membrane tank and a water outlet pipe communicating with each other in sequence; the water outlet pipe is arranged obliquely, a plurality of electromagnets are arranged at equal intervals above the water outlet pipe, and an aeration device is attracted under the electromagnets; a sewage tank is cylindrical, a rotating shaft is arranged at an intermediate position in the sewage tank,and auger blades are fixedly connected to the rotating shaft. The sewage is comprehensively purified and the purification degree of the sewage is improved by a series of sewage treatment processes.