289 results about "Greywater" patented technology

Device (10) for supplying grey water (160) from a grey water producer (12) to a grey water consumer (500; 702), wherein the grey water producer (12) has a grey water outlet (14), wherein the device (10) has an inlet (16) which can be connected to the grey water outlet (14) and an outlet (18), characterized in that the device (10) also has, in addition to the outlet (18), a discharge connection (20) for discharging grey water (160) to the grey water consumer (500; 702).

Device (300) for supplying a grey water tank (586) with fresh water from a fresh water connection (302), wherein the fresh water connection (302) has an outlet opening (316), characterized in that in the flow direction (S) of the fresh water, downstream of the fresh water connection (302), there is a fresh water tank (304) for temporarily storing the fresh water, which is connected to the fresh water connection (302).

Device (500) for storing greywater, comprising a first container (506) for collecting greywater from a greywater inlet (20) connectable to a greywater generator (12) and a second container (586) for providing greywater for a specific use, wherein the second container (586) has a closable outlet (544) connectable to a greywater consumer (702), wherein the first container (506) has an interface (550, 552, 560, 578, 580, 582, 584) for fluid communication with the second container (586), wherein a fresh water connection (302) exists, characterized in that the fresh water connection (302) is connected to the second container (586) but not to the first container (506).

Method and apparatus for treating greywater to produce process water, comprising a cleaning process including coarse filtration of the greywater, preferably aerobic biological cleaning with sedimentation of particles and suspended solids, and subsequent ultrafiltration, preferably by means of a membrane filter, wherein the cleaning process is controlled at least with regard to the biological cleaning and the ultrafiltration depending on the greywater pollution.

The invention relates to the field of coal gasification chilled water, in particular to a coal gasification chilled water filtering system which comprises at least two filter bodies connected into a coal gasification chilled water system and arranged in parallel, and each filter body comprises a shell, a V-shaped sieve plate, a sieve plate flushing assembly and a shell flushing assembly. According to the coal gasification chilled water filtering system, on-line automatic dual cleaning of the filter body can be achieved, under the condition that normal operation of the filtering system is not affected, high-pressure grey water of a coal gasification grey water system is used for cleaning the sieve plate from the upper portion through the top flushing spray head, the inner wall of the shell is flushed through the combination of the side flushing pipe, and the filtering effect is good. The flushing effect of the filter body is improved, the service life of the filter body is prolonged, recycling of the filter body is achieved, the problems that at present, ash blocks the filter, chilled water supply is insufficient, and a gasification furnace cannot operate for a long period are solved, the working intensity of workers is reduced, and the production investment cost is saved.

The invention belongs to the technical field of entrained-flow bed coal gasification processes, and particularly relates to an entrained-flow bed coal gasification grey water quality optimization method which comprises the following steps: (1) performing multi-stage flash evaporation on black water to be treated to obtain multi-stage concentrated black water; (2) adding a flocculating agent into the multi-stage concentrated black water to settle, and enabling the obtained supernatant liquid as overflow grey water to enter a filtration-adsorption system; (3) preparing a filter aid mixed solution in advance; before the filter is put into use, the filter aid mixed solution is introduced into the filter for precoating, and after precoating and filtering, the filter aid forms a filter aid filtering base layer on filter cloth of the filter; after the pre-coating process of the filter aid is finished, the overflow grey water is introduced into a filter for filtration-adsorption treatment; and (4) adding a dispersing agent into the obtained ash water filtrate to prepare recycled ash water, and feeding the recycled ash water into a washing tower and a gasification furnace for cyclic utilization. The method can effectively improve the water quality of the recycled grey water under the condition of reducing the dosage of the flocculating agent and the dispersing agent, and prolongs the operation period of a water system.

The invention provides a coal chemical industry gasified black water energy recovery system which comprises a high-pressure flash tank, a black water liquid expansion machine, a vacuum flash tank, a vacuum flash condenser, an extractor and a hot water tower, and the high-pressure flash tank is provided with a gasified black water inlet, a high-temperature steam outlet and a low-temperature black water outlet. The black water liquid expansion machine is provided with a low-temperature black water inlet, a superheated steam outlet and a normal-pressure saturated black water outlet, the vacuum flash tank is provided with a normal-pressure saturated black water inlet, a low-temperature steam outlet and a saturated liquid black water outlet, and the vacuum flash condenser is provided with a low-temperature steam inlet, an uncondensed gas outlet and a condensed water outlet. The extractor is provided with a high-temperature steam inlet, a mixed steam inlet and a steam-water mixture outlet, and the hot water tower is provided with a steam-water mixture inlet, a fresh water inlet, a conversion condensate inlet, a hot water outlet and a grey water outlet. The energy recovery efficiency is greatly improved, the performance of the vacuum system is optimized, the black water concentration effect is improved, and efficient circulation of water resources and full recovery of black water energy are achieved.

The invention provides a collaborative optimization method and device for a desalted water system and application, and belongs to the technical field of water treatment.According to the method, in the technological process of desalted water, through the synergistic effect of waste heat recovery, intelligent backwashing control, an efficient desalting process and resource recycling, system energy consumption is reduced, the water recovery rate is increased, and the energy consumption is reduced. Wastewater discharge is reduced, and even wastewater zero discharge is achieved. A grey water raw water heat exchanger is arranged at the upstream of the raw water tank, grey water is subjected to heat exchange and cooling through the grey water raw water heat exchanger, and fresh raw water is communicated with the raw water tank after being subjected to heat exchange and temperature rise through the grey water raw water heat exchanger; the raw water tank is connected with the ultrafilter, the downstream of the ultrafilter is connected with the fiber filter, and the fiber filter is connected with the efficient cation bed; the efficient cation bed is connected with a decarburizer which is connected with a middle water tank; the middle water tank is connected with a high-efficiency anion bed which is connected with a mixed bed; the mixed bed is connected with a desalted water tank. The invention solves the problems of high energy consumption, high water consumption and difficulty in wastewater treatment in the traditional process. Zero discharge of wastewater is realized, and the purity of the prepared pure water is higher.

The invention provides a gasified grey water rotational flow spraying cooling tower, and relates to the technical field of cooling towers, the gasified grey water rotational flow spraying cooling tower comprises a tower body, a rotational flow spraying mechanism and a water tank are arranged in the tower body, the rotational flow spraying mechanism comprises a servo motor mounted on the upper surface of the water tank, a rotating shaft is mounted at the output end of the servo motor, and a second gear is meshed with the outer surface of a first gear. The four ends of the four-way pipe body are fixedly communicated with atomizing nozzles respectively, and four rotational flow grooves corresponding to the atomizing nozzles respectively are formed in the rotational flow disc. By arranging the rotational flow spraying mechanism, a servo motor is used for driving a rotating shaft and a first gear to rotate so as to drive a second gear, a four-way pipe body, an atomizing nozzle, a connecting round rod and a rotational flow disc to integrally rotate, and a rotational flow groove is matched to perform rotational flow guiding on water sprayed by the atomizing nozzle, so that the water forms rotational flow in the tower body; the contact area of water and air is effectively increased, water flow distribution is more uniform, and therefore the heat exchange efficiency and the cooling effect are improved.

The invention relates to the technical field of train wastewater treatment, and discloses a train grey water recycling system which comprises a water basin, a purification tank and a water collecting tank, the purification tank is located below the water basin, a blow-off pipe is arranged between the purification tank and the water basin in a communicating mode, the water collecting tank is located below the purification tank, and a drainage pipe is arranged between the water collecting tank and the purification tank in a communicating mode. A water pumping mechanism is connected to the water collecting tank, a filtering unit, an adsorption unit and a disinfection unit are sequentially distributed in the purification box from top to bottom, a suspension frame is arranged in the disinfection unit located at the tail end of the purification box in a lifting sliding mode, a buoy is arranged at the top of the suspension frame, a transparent cover is arranged at the bottom of the suspension frame, and an ultraviolet disinfection lamp is installed in the transparent cover; a plurality of vertical limiting rods are arranged at the inner bottom of the purification box, the multiple limiting rods are arranged around the inlet end of the drainage pipe, the multiple limiting rods are jointly and slidably sleeved with a water stop rubber plug, and a pull rope is arranged at the top of the water stop rubber plug. The method has the effect of improving the train transportation efficiency.

The utility model belongs to the technical field of coal gasification high-pressure flash steam purification, and particularly relates to a coal gasification high-pressure flash steam purification device. The purification section is arranged above the heat exchange section of the hot water tower, high-pressure flash steam subjected to heat exchange with grey water is washed and purified, ammonium salt and ash in the high-pressure flash steam are removed, meanwhile, the flushing device is arranged on the cooler, the tube pass of the cooler is flushed, and the heat exchange efficiency is improved. Ammonium salt and ash attached to the inner wall of the cooler tube pass are flushed, so that the cooler tube pass can be efficiently prevented from being blocked; and the cooled high-pressure flash steam is subjected to gas-liquid separation, so that ammonium salt, ash and moisture in the high-pressure flash steam are greatly reduced, the high-pressure flash steam is purified and fed into a compressor, and the load and damage frequency of the compressor are reduced.

An indoor grey water purification and reuse device, system and method for public buildings is disclosed. The grey water purification and reuse device includes a grey water storage tank, a grey water treatment assembly and a pneumatic reclaimed water tank assembly which are sequentially arranged from top to bottom. The grey water storage tank is used for storing grey water from one floor above collected by a grey water collecting device. The grey water treatment assembly is used for carrying out multistage purification treatment on the grey water in the grey water storage tank. The pneumatic reclaimed water tank assembly is used for disinfecting reclaimed water subjected to multistage purification treatment and supplying water to reclaimed water reuse facilities on the current floor of the building in a constant-pressure mode.

The invention belongs to the technical field of coal chemical industry grey water treatment, and particularly relates to an advanced treatment method and system for coal chemical industry grey water circulating water. The method integrates pretreatment, complexing cracking, fractional crystallization and deep deamination, and is characterized in that a chelating structure of an organic phosphorus dispersing agent and calcium and magnesium ions is thoroughly destroyed through an advanced reduction-advanced oxidation combined process, target ions are released, and the core problems that hardness removal is hindered and phosphorus pollution is caused are solved; then, calcium and magnesium are respectively converted into calcium carbonate and magnesium ammonium phosphate particles for resource recovery by utilizing a secondary crystallization technology, so that the bottlenecks of high alkali liquor consumption and salt accumulation of a traditional high-pH magnesium ion precipitation method are broken through; and finally, the residual ammonia nitrogen is deeply removed by adopting a pollution-resistant PTFE hydrophobic membrane, so that the residual ammonia nitrogen is efficiently and stably removed, and the problem that a traditional polypropylene material membrane system is easy to pollute and block, easy to oxidize and difficult to apply to the field is solved.

The invention discloses an environment coupling type grey biological membrane rural grey water recycling and resourceful treatment device, which belongs to the technical field of rural sewage treatment, and comprises a grey integrated structure, an efficient biofilm culturing structure and a biological membrane stabilizing structure, the gray integrated structure comprises a gray shell, the interior of the gray shell is divided into an anoxic zone, an aerobic zone and a settling zone through gray partition walls, and a flow guide groove is formed in the top of each gray partition wall; the efficient biofilm culturing structure is arranged in the aerobic zone through a biofilm stabilizing structure, and a gray microporous aeration device is arranged in the aerobic zone; the efficient biofilm formation structure comprises a plurality of Fe3O4-loaded gray PP fiber fillers; the biological membrane stabilizing structure comprises a gray filler frame, and each gray PP fiber filler is fixed on the gray filler frame. The invention solves the problems of low treatment efficiency, high cost, unstable biological membrane, algae growth and the like in the prior art, and realizes efficient purification treatment of grey water in rural domestic sewage.

The invention provides a resource recovery type black and grey water treatment system. The system comprises an oil separation device, a filtering device, a grey water treatment unit, a three-grid septic tank and an ecological percolation device, wherein the oil separation device comprises a kitchen grey water inlet, a grease outlet and an oil separation grey water outlet; the filtering device comprises a bathing and clothes washing grey water inlet, an impurity outlet and a filtered grey water outlet; the grey water treatment unit comprises a coagulative precipitation device, a filtering and decolorizing device, a UV disinfection device and a storage device; the coagulative precipitation device comprises an oil-separated grey water inlet, a filtered grey water inlet, a first water outlet and a second water outlet; the filtering and decoloring device comprises a water inlet and a filtered and decolored water outlet; the UV disinfection device comprises a filtered and decolored water inlet and a disinfected water outlet; the storage device comprises a disinfected water inlet and a water outlet; the three-grid septic tank comprises a first grid, a second grid and a third grid which are connected, the first grid comprises a toilet flushing black water inlet, and the third grid comprises a mixed water outlet; the ecological percolation device comprises a mixed water inlet and a harmless water outlet.

The invention relates to the technical field of scale inhibitors, and discloses a phosphorus-free environment-friendly grey water scale inhibition dispersant and a preparation method thereof, the phosphorus-free environment-friendly grey water scale inhibition dispersant comprises the following raw materials by weight: 60-80 parts of a phosphorus-free polymer scale inhibition dispersant, 15-25 parts of a slow release synergist, 6-15 parts of a surfactant, 1-10 parts of modified cellulose, 1-6 parts of a pH regulator, and 40-60 parts of water. According to the phosphorus-free environment-friendly grey water scale inhibition dispersing agent, the phosphorus-free polymer scale inhibition dispersing agent is adopted as the raw material, phosphorus is completely abandoned, the environment toxicity is low, and the current environment protection requirement is met. The raw materials are matched for use, so that the phosphorus-free environment-friendly grey water scale inhibition dispersing agent has excellent calcium scale inhibition rate and also keeps relatively high stability.

The utility model discloses a raw material proportioning and mixing device for grey water dispersant production, and particularly relates to the technical field of grey water dispersant production equipment.The raw material proportioning and mixing device comprises a mixing tank, a mixing mechanism is fixedly connected to the upper side of the interior of a conveying mechanism, and a quantifying mechanism is fixedly connected to the middle of the upper end of the outer surface of the mixing tank; the left portion and the right portion of the quantifying mechanism are symmetrically and fixedly connected with feeding mechanisms, and the lower portions of the feeding mechanisms are slidably connected with material blocking mechanisms. According to the raw material proportioning and mixing device for producing the grey water dispersing agent, disclosed by the utility model, raw materials needing to be proportioned can be stably put into the quantifying mechanism through the two feeding mechanisms, and then the dosage of the raw materials needing to be proportioned is observed and measured through the quantifying mechanism; and meanwhile, the proportioned raw materials can be blocked through a material blocking mechanism, the fed raw materials can be mixed together through a mixing mechanism and a supporting mechanism and conveyed downwards to the bottom wall of the inner cavity of the mixing tank, and the practicability and universality of the device are improved.

The invention discloses a grey water dispersing agent based on AMPS waste liquid and a preparation method thereof, and relates to the field of dispersing agent preparation.The AMPS waste liquid and acrylic acid are mixed to prepare an oil material, hydrogen peroxide serves as a water material, the oil material and the water material are jointly dropwise added into a base material prepared from maleic anhydride and an initiator, and the grey water dispersing agent good in scale inhibition performance can be prepared; the whole process is simple to operate, the AMPS waste liquid does not need to be subjected to refined pretreatment, the treatment difficulty of recycling is reduced, and the AMPS waste liquid can be completely recycled. The grey water dispersing agent prepared on the basis of the AMPS waste liquid has excellent scale inhibition performance, and scale inhibition can still be effectively carried out under the condition that the dosage is lower than that of a conventional dispersing agent; the use cost is reduced and the popularization is convenient. And the scale inhibitor can be compounded with a common dispersant, and the performance is not influenced after compounding, so that the scale inhibitor can be directly applied under complex scale inhibition requirements, and the application scene is expanded.

Housing equipped with greywater sorting equipment. This housing includes an analysis cell (60) comprising a siphon (80) installed in a greywater outlet pipe. This siphon comprises: - a fixed body (82) equipped with an inlet pipe (90) and an outlet pipe (92) whose axes (94) of revolution coincide, - a plunger (84) interposed between the inlet pipes (90) and outlet pipes (92) to force the greywater to descend to a lower part (110) of the siphon before rising towards the outlet pipe, - a removable base (86) which completely surrounds the lower part, and - a turbidity sensor (124) fixed, without any degrees of freedom, to the siphon to measure the turbidity of the greywater in the lower part (110) of the siphon or between the lower part and an inlet of the outlet pipe. Fig. 2

The invention discloses a coal-to-methanol ash water treatment system and an optimization method. The coal-to-methanol ash water treatment system comprises a first water heater, a second water heater, a first flash evaporator, a third water heater and a vacuum flash evaporation device; an inlet of the first water heater is connected with a chilling chamber of the gasification furnace; an inlet of the second water heater is connected with a washing tower of a gasification section; an inlet of the first flash evaporator is connected with an air outlet of the first water heater and an air outlet of the second water heater; an inlet of the third water heater is connected with a liquid outlet of the first water heater and a liquid outlet of the second water heater; and the vacuum flash evaporation device is used for further treating liquid at the bottom of the third water heater. According to the method, the salt in the high-concentration brine can be recycled and converted into a product for resource recycling, so that the problem of hazardous waste treatment of crystalline solids in related technologies is solved, the treatment efficiency is improved, and the treatment cost is reduced.

A grey water reclamation system for a recreational vehicle includes an on-board use that generates grey water having a contamination level, a grey water treatment tank fluidly connected to the on-board uses to collect the grey water and treat the grey water therein to form treated grey water, and a coagulant dispenser and a flocculant dispenser each fluidly connected to the grey water treatment tank and configured to supply a predetermined amount of coagulant and flocculant, respectively, to the grey water treatment tank. The system also includes a grey water supply tank fluidly connected to the grey water treatment tank configured to receive the treated grey water therefrom and supply the treated grey water to a particular on-board use. The predetermined amount of coagulant is based on the contamination level or a turbidity of the treated grey water.

The invention belongs to the technical field of sewage treatment, and discloses a waste heat boiler blow-down water recovery device and method.The device comprises a boiler, a slurry pump, a stirring tank and a gas storage tank which are communicated through pipelines; the stirring tank comprises a stirring assembly arranged in the stirring tank and a motor used for driving the stirring assembly; the stirring assembly comprises a first driving rod, the first driving rod is of a hollow structure, the first driving rod is connected with the output end of the motor, and the first driving rod communicates with an air storage tank through a rotating joint; the second driving rod is of a hollow structure, and the second driving rod communicates with the first driving rod; the first stirring rods are of hollow structures, the number of the first stirring rods is two, and the first stirring rods communicate with the first driving rod and the second driving rod correspondingly; the second stirring rod is of a hollow structure, the second stirring rod is arranged in the first stirring rod and communicates with the first stirring rod, and a plurality of spraying holes are formed in the second stirring rod; the problem of insufficient reaction of carbon dioxide and grey water is solved.

The utility model provides a treatment system for rainwater recovery, and relates to the technical field of rainwater treatment, the treatment system comprises a wetland area, a magnetic flocculation device, an ultrafiltration membrane group, a nanofiltration membrane group and a clear water tank which are communicated in sequence, rainwater can flow through the wetland area, the magnetic flocculation device, the ultrafiltration membrane group and the nanofiltration membrane group in sequence to be filtered, and the clear water tank is communicated with the wetland area. The rainwater is gradually purified, so that the rainwater can reach the reclaimed water level and flows into the clean water tank; the treated rainwater can be used for toilet flushing, greening, road sweeping, car washing and the like, and recycling of the rainwater is achieved.

The present invention belongs to the technical field of recreational vehicles, and discloses a cleaning device for a recreational vehicle, which includes a cleaning rack installed in the recreational vehicle, a water tank arranged in the cleaning rack, a swivel faucet installed on one side of the water tank, and a middle water separation structure arranged in the water tank; the middle water separation structure includes a water guide table arranged along the side wall of the water tank, a water guide cavity arranged on the water guide table, and a filter plate covering the water guide cavity; a gray water drain port is arranged in the water tank, and a middle water drain port is arranged in the water guide cavity. With the cleaning device designed in this structure, relatively clean items can be cleaned through the setting of the water guide table and flow into the middle water drain port via the filter plate and the water guide cavity; while relatively dirty items can be directly placed in the water tank for cleaning and then flow out through the gray water drain port; the structure of the present invention is simple and convenient to use, and can effectively separate the middle water and gray water generated during the cleaning process, thereby improving the water use efficiency of the recreational vehicle and reducing water waste.

The utility model relates to the technical field of washing towers, and provides an efficient gas washing tower which comprises a main tower body and a gas inlet auxiliary tower body, the gas inlet auxiliary tower body is arranged at the bottom of the main tower body, a supporting frame is fixed on the outer wall of the main tower body, a gas inlet is formed in the outer wall of the gas inlet auxiliary tower body, and a circulating pump is arranged in the main tower body. The washing and dispersing assembly is arranged between the circulating pump and the main tower body, the filtering assembly is arranged at the inlet end of the circulating pump and in the air inlet auxiliary tower body, the washing and dispersing assembly comprises an inner shell, the inner shell is fixed in the main tower body, the circulating pump is fixed in the inner shell, a central pipe is arranged at the top of the inner shell, and the water outlet end of the circulating pump is communicated with the central pipe; a dispersing cover is arranged at the upper end of the central pipe. According to the technical scheme, the problems that in the prior art, if a bubble-covered tray is used, washing high-temperature grey water and synthesis gas are condensed to generate a large amount of dust, so that the bubble-covered tray is easily blocked or stuck, the synthesis gas carries water seriously, and the stable operation of a system is influenced are solved.

The present disclosure provides a device, a system, and a method for filtering liquids, in particular for filtering gray water such that it can be reused for multiple purposes. Also provided is an optional step of purifying the liquid with a chemical such that the filtered liquid is also potable.

The utility model discloses an environment-friendly desulfurization wastewater treatment device for a coal-fired power plant, and relates to the technical field of industrial wastewater treatment. The device comprises a reaction tank, a stirring assembly is installed inside the reaction tank and comprises a motor and a rotating rod arranged at the shaft end of the motor, a stirring plate is further installed on the outer wall of the rotating rod, the reaction tank is connected with a sludge lifting pump through a discharging pipe, and the sludge lifting pump is further connected with a distributing device in the treatment tank; a treatment assembly is further erected in the treatment tank and comprises a conical hopper, a micropore stainless steel sintering filter hopper is embedded in the bottom of the conical hopper, and the vacuum buffer tank is further connected with a vacuum pump. By utilizing the reaction tank and the stirring assembly arranged in the reaction tank, the fly ash is added while the wastewater is added, so that Cl <-> ions, F <-> ions and heavy metal ions in the wastewater are adsorbed, and then the ash-water mixture is filtered by utilizing the matching of the treatment tank and the vacuum pump.

The utility model discloses a kind of loading devices of gasification coarse slag, belong to synthetic ammonia technical field.It include installation platform, distributing pipe, ash water collection tank, sludge dredger, vibrating screen, ash water collection basin, first stair and second stair;The bottom end of distributing pipe is equipped with spare discharge gate and dewatering discharge gate, dewatering discharge gate is connected with vibrating screen, ash water collection basin is located just below vibrating screen and it is connected with ash water collection tank by drain pipe;Installation platform is double-layer structure and it is set along front-back, vibrating screen is set in first layer along front-back, spare discharge gate is located just in front of or just behind vibrating screen, ash water collection tank is located left side or right side of installation platform, sludge dredger and drain pipe are set in left-right direction inclination;First stair is set between first layer and ground, it is located on the side of installation platform close to ash water collection tank, and it is set along left-right direction;Second stair is set between second layer and first layer, and it is set along front-back, and it is located on the side of installation platform away from ash water collection tank.

The utility model relates to the technical field of high-flash gas recovery, in particular to a gasification grey water high-flash gas recovery device which comprises a first condenser, a second condenser, a torch and a boiler. And a second treatment pipeline is fixedly communicated between the outlet of the second condenser and the first treatment pipeline. The device is reasonable and compact in structure and convenient to use, gasified grey water high-flash gas sent out by the high-pressure flash tank is condensed by the first condenser and then sent into the boiler for blending combustion of byproduct steam, the gasified grey water high-flash gas can be effectively recycled, the combustible gas byproduct steam rich in the gasified grey water high-flash gas is utilized, and the utilization rate of the byproduct steam is improved. The consumption of torch natural gas is reduced, the release of waste gas is reduced, and the environmental protection pressure is relieved.

The invention discloses a distributed rural sewage septic tank and purification tank coupling treatment system which is characterized in that a feed port of an improved septic tank is connected with a flushing toilet, and a discharge port of the improved septic tank is connected with a feed port of an electrochemical enhanced purification tank; a discharge port of the electrochemical enhanced purification tank is further connected with a kitchen and a bath room, the improved septic tank is connected with the fertilization pipeline system, the electrochemical enhanced purification tank is connected with the watering pipeline system, and ultraviolet disinfection equipment and a three-dimensional electrochemical treatment structure are arranged in the electrochemical enhanced purification tank; the chemical oxygen demand and the biochemical oxygen demand of black water are effectively reduced after the black water is cured in the septic tank for enough time, the black water is mixed with grey water to enter the electrochemical enhanced purification tank and then treated by a biological and electrochemical combined method, and the sewage is disinfected by an electrochemical and ultraviolet disinfection combined mode, so that the effluent reaches the reuse standard.