252 results about "Media filter" patented technology

A regenerative filter that includes a filter housing having inlet and outlet zones; a fluid path provided between the inlet and outlet zones; a plurality of filter elements each having an outer surface filter media applied thereto and functioning to filter particulate or contaminants from the fluid path. The filter elements are disposed in an monolithic array. An inlet port arrangement is disposed at the filter housing leading to the inlet zone and is constructed and arranged to direct the fluid path into the filter housing in a manner so as to maintain a controlled turbulence at the inlet zone. The inlet port arrangement comprises a pair of inlet ports that are arranged in juxtaposition at the inlet zone and each having one end where the fluid flow enters. Embodiments that are considered as falling under the scope of the present invention include 1. Single inlet / two or more outlets; 2. Two or more inlets / single outlet, or 3. Two or more inlets and two or more outlets.

A water filtration system is also disclosed. The water filtration system includes a regenerative media filter vessel, a filtrate line, a feed line, a recirculation line, a gas line, and at least one pump. A method of filtering water in a system comprising a regenerative media filter is disclosed. The method includes operating the system in a filtration mode, operating the system in a cleaning mode responsive to a differential pressure measurement across the regenerative media filter, operating the system in an aeration mode, operating the system in a pre-filtration mode after operating the system in the cleaning mode, operating the system in a drain mode, and operating the system in the filtration mode following the drain mode. A controller and non-transitory computer-readable medium having computer-readable signals stored thereon that define instructions that, as a result of being executed by the controller, instruct the controller to perform a method of operating a water filtration system are disclosed.

The system comprises a raw water tank, a multi-medium filter, a bag filter, a plate heat exchanger, an ultrafiltration device, an ultrafiltration water tank, a primary reverse osmosis device, a secondary reverse osmosis device, a UV (ultraviolet) sterilization device, an EDI (electrodeionization) device, a TOC (total organic carbon) remover, a polishing mixed bed and a terminal filter which are sequentially connected, the RO concentrated water tank is connected with the reverse osmosis concentrated water outlet ends of the primary reverse osmosis device and the secondary reverse osmosis device, the electric driving membrane device is connected with the RO concentrated water tank, and the drainage concentrated water tank is connected with the electric driving membrane device. The reverse osmosis (RO) and electrodeionization (EDI) combined process adopted in the invention comprehensively solves a series of problems of acid and alkali consumption, environmental pollution, poor automation degree, complex system and the like in ultrapure water production. The process equipment disclosed by the invention is relatively high in automation degree, saves the cost required by acid-base regeneration, and does not cause any pollution to the environment.

A water filtration system is also disclosed. The water filtration system includes a regenerative media filter vessel, a filtrate line, a feed line, a recirculation line, a gas line, and at least one pump. A method of filtering water in a system comprising a regenerative media filter is disclosed. The method includes operating the system in a filtration mode, operating the system in a cleaning mode responsive to a differential pressure measurement across the regenerative media filter, operating the system in an aeration mode, operating the system in a pre-filtration mode after operating the system in the cleaning mode, operating the system in a drain mode, and operating the system in the filtration mode following the drain mode. A controller and non-transitory computer-readable medium having computer-readable signals stored thereon that define instructions that, as a result of being executed by the controller, instruct the controller to perform a method of operating a water filtration system are disclosed.

The utility model provides a pig farm reclaimed water recycling system with multiple application scenes, which comprises a pretreatment device, a reverse osmosis device, a first recycling device, a disinfection device and a second recycling device which are connected in sequence, the pretreatment device comprises a full-automatic multi-medium filter and an ultrafilter which are connected in sequence; the reverse osmosis device comprises a scale inhibitor, a precision filter and a reverse osmosis membrane assembly which are connected in sequence, and the ultrafilter is connected with the scale inhibitor; the first recycling device comprises a first water storage tank, and the first water storage tank is connected with the reverse osmosis membrane assembly. The utility model overcomes the key core problem of hindering the reuse of reclaimed water in a large-scale farm, provides a feasible technical scheme for the industry, and not only can relieve the water pressure of the pig farm, but also can save clean water resources.

The invention provides a circulating blow-down water treatment device and process based on a crystallization and granulation fluidized bed coal-fired power plant. The device comprises a cooling tower pool, a multi-medium filter, a crystallization and granulation fluidized bed, a circulating blow-down water buffer pool, a high-density clarification pool, a plug flow channel, a variable-porosity filter pool, a clarification water pool, a self-cleaning filter, an ultrafiltration device, an ultrafiltration water tank, an ultraviolet sterilizer, a security filter and a reverse osmosis device which are connected in sequence. According to the scheme, by introducing induced crystallization for hardness removal and synergistic silicon removal, deep precision treatment can be performed on the circulating sewage, quality-divided recycling is realized, and gradient utilization of water resources is realized; in addition, in the treatment process, the use of chemicals polluting the environment is reduced, the entry of chlorine radicals is avoided, and the great increase of the amount of the recycled desulfurization wastewater is effectively reduced.

The invention discloses a low-temperature multi-effect evaporation-based impurity salt treatment process method, and relates to the technical field of industrial waste salt treatment in the chemical industry. According to the scheme, firstly, impurity salt is dissolved and then pretreated by a fluorine removal tank and a multi-medium filter, and pretreated saline water is obtained; then, organic matters and dissolved substances are removed through a catalytic oxidation and nanofiltration device, and a monovalent salt solution and a divalent salt solution are separated out; then, the monovalent salt solution is subjected to reverse osmosis concentration and then enters a low-temperature multi-effect evaporation system for sodium chloride crystallization, and the divalent salt solution is subjected to catalytic oxidation and then enters low-temperature multi-effect evaporation for sodium sulfate crystallization. And finally, the mother liquor subjected to low-temperature multi-effect evaporation is refluxed and retreated, and resources are further concentrated. According to the invention, the waste salt treatment efficiency is effectively improved by optimizing the chemical addition of the sedimentation tank. By adopting a low-temperature multi-effect evaporation technology, the energy efficiency is optimized, the energy loss is reduced, the crystallization efficiency is improved, and the resource recovery rate is increased. And a mother liquor backflow retreatment mechanism reduces waste liquid discharge and reduces environmental burden.

The invention relates to a PVA fiber production wastewater treatment method and device. The wastewater enters a multi-medium filter after being homogenized to adjust the pH, so that the content of suspended solids in the wastewater is reduced. And the content of suspended matters and colloids in multi-medium produced water is reduced by adopting an ultrafiltration system. Ultrafiltration produced water enters a first reverse osmosis membrane to be concentrated, first reverse osmosis membrane concentrated water is subjected to hardness removal through a hardness removal filter, and produced water of the hardness removal filter is further concentrated through a second reverse osmosis membrane system. After second reverse osmosis membrane concentrated water passes through an ion concentration allocation system, crystallization treatment is conducted on the concentrated water, most crystallization mother liquor flows back to the ion concentration allocation system, ion concentration allocation produced water is further concentrated through a third reverse osmosis membrane, and power plant ash spraying treatment is conducted on third reverse osmosis membrane concentrated water; and the produced water of the three reverse osmosis units is recycled after COD is further reduced through advanced oxidation.

The utility model provides a system for directly recycling wastewater of a medium-high pressure boiler. The system comprises a collecting and regulating tank, a heat exchanger, a coagulation clarifier, a multi-medium filter, an ultrafiltration system, a secondary reverse osmosis system, an EDI (Electronic Data Interchange) device, a mixed bed and a user high-purity water tank which are connected in sequence, the second-stage reverse osmosis system comprises a first-stage reverse osmosis system and a second-stage reverse osmosis system, the first-stage reverse osmosis system comprises a first-stage RO raw water tank, a precision filter and a first-stage RO device, effluent of the ultrafiltration system enters the first-stage RO raw water tank and then enters the precision filter to be filtered, and water produced by the precision filter is fed into the first-stage RO device; the second-stage reverse osmosis system comprises a second-stage RO raw water tank and a second-stage RO device, fresh water produced by the first-stage RO device is fed into the second-stage RO raw water tank and then enters the second-stage RO device, and fresh water produced by the second-stage RO device is fed into the EDI device to be treated. According to the utility model, a full-flow treatment system is developed aiming at the water quality condition of the wastewater of the medium-high pressure boiler, and the finished water can stably meet the water supply requirements of the medium-high pressure boiler.

The invention provides a treatment method and system for directly recycling wastewater of a medium-high pressure boiler, and the method comprises the following steps: the wastewater of the medium-high pressure boiler enters a collecting and regulating tank after being discharged, and then is fed into a heat exchanger through a booster pump; the treated wastewater enters a coagulation clarifier through system residual pressure, floc is formed, and effluent is clarified; feeding clarified effluent into a multi-medium filter through a booster pump; water produced by the multi-medium filter is fed into an ultrafiltration system; effluent of the ultrafiltration system enters a secondary reverse osmosis system, and fresh water produced by the secondary reverse osmosis system is fed into an EDI device through a booster pump to be treated; and pure water produced by the EDI device enters the mixed bed through system residual pressure, is subjected to fine desalination through ion exchange, and then is fed into a high-purity water tank of a user to be used as inlet water of a middle-high pressure boiler. The invention develops a full-flow treatment process aiming at the special water quality condition of the wastewater of the medium-high pressure boiler, and the finished water can stably meet the strict water quality requirement of the water supplied by the medium-high pressure boiler.

The invention relates to the technical field of wastewater treatment, and discloses a recycling washing water treatment process of sodium chloride high-salinity wastewater, which comprises the following steps: step 1, a pretreatment stage: recycling washing water with a pH value range of 6-9 and main solutes of NaCl and Ca < 2 + lt >; 350mg / L, Mg < 2 + lt >; the method comprises the following steps: introducing washing water with the concentration of 350mg / L and the TDS of more than 100g / L into a multi-medium filter, removing impurities in the washing water through a multi-layer filtering structure by utilizing the adsorption and interception effects of a filtering medium, and controlling the filtering speed to be 8-12m / h; and step 2, a hardness removal stage: the water treated by the multi-medium filter enters a hardness removal resin device, and strong-acid cation exchange resin is adopted to carry out ion exchange reaction with Ca < 2 + > and Mg < 2 + > in the water to remove calcium and magnesium ions in the water. And in the hardness removal process, the flow speed is controlled to be 4-6 m / h. Water resources and salt in washing water are fully separated and recycled, no by-product pollutant is discharged into the environment, pollution to soil, water and atmosphere is greatly reduced, and balance of the ecological environment is protected.

The multifunctional water purifier comprises an outer shell, a microcomputer controller is installed in the outer shell, a waterway control assembly comprises a first low-voltage switch installed at a water inlet of the outer shell, the first low-voltage switch is electrically connected with a water inlet electromagnetic valve, and the water outlet end of the water inlet electromagnetic valve is connected with a filtering mechanism; the filtering mechanism comprises a PE filter element and a multi-medium filter element, the water outlet end of the high-pressure water pump is connected with an RO membrane filter, the water outlet end of the RO membrane filter is connected with a three-water-outlet combined water nozzle through a first high-pressure switch, the water outlet end of the RO membrane filter is connected with a waste water flushing electromagnetic valve, and the three-water-outlet combined water nozzle is connected with the electrolytic bath, so that purified water can be provided, and the water quality of the electrolytic bath is improved. The water purifier is simple in structure, convenient to operate and capable of preparing electrolyzed reduced water and oxygen-enriched disinfectant fluid, the requirements of users for various functional water are met, different types of water can be prepared through convenient switching in the same equipment, and the problems that an existing water purifier is single in function and cannot meet diversified water requirements are effectively solved.

The invention discloses a treatment system for power plant wastewater recovery, which comprises a softening pretreatment assembly for removing impurities in wastewater, a clarification tank for treating suspended matters, a clean water tank for storing clean water, a membrane concentration assembly communicated with the softening pretreatment assembly, and a water supply assembly communicated with the membrane concentration assembly. The device is used for further improving the filtering effect on the wastewater and comprises a multi-medium filter for filtering impurities and a reverse osmosis device for desalting the wastewater. The power plant wastewater treatment system has the beneficial effects that some solid impurities in power plant wastewater can be filtered through the softening pretreatment assembly, the crystallization phenomenon in an existing wastewater treatment system is greatly reduced, the treated wastewater can be further filtered through the membrane concentration assembly, salt in the wastewater can be concentrated and separated, the discharge amount of strong brine is reduced, and the treatment cost is reduced. In addition, reverse osmosis produced water and reverse osmosis concentrated water produced by the reverse osmosis device can be respectively supplemented for boiler water and desulfurization water, so that the recycling rate of wastewater is increased.

The utility model discloses a multi-stage multi-medium filter and belongs to the technical field of filters. A multi-stage multi-medium filter comprises a main filter shell and two auxiliary filter shells, circulating pipes are installed between the main filter shell and the auxiliary filter shells, pneumatic pumps are installed at the rear ends of the auxiliary filter shells, and air valves are installed between the pneumatic pumps and the auxiliary filter shells. The multi-medium filter solves the problems that in the actual using process of an existing multi-medium filter, the water filtering mode is single, and the filtering effect cannot be improved, multi-medium filtering work is conducted through the kieselguhr and the glass fiber cloth in the auxiliary filter shell, filtered clean water flows into the water outlet pipe through the water guiding channel, and the water quality is improved. And the sewage which is not completely filtered can be compressed through the pneumatic pump, so that the sewage enters the circulating pipe under the pressure, and then is secondarily filtered through the filter element, the filtering effect is improved, and long-term work is facilitated.

The invention belongs to the technical field of glass flue gas wastewater treatment, and discloses a glass substrate cullet flue gas wastewater treatment system and a glass substrate cullet flue gas wastewater recycling method.The glass substrate cullet flue gas wastewater treatment system comprises a chlorination and denitrification device, a chlorine spraying device and a filtering device; the adding amount of sodium hypochlorite is adjusted through a sodium hypochlorite adding pump, sodium hypochlorite and cullet flue gas wastewater are fully mixed under the action of aeration of an aeration pipeline at the bottom of the denitrification reaction tower and a stirrer at the top of the denitrification reaction tower, ammonia nitrogen in the cullet flue gas wastewater reacts, and ammonia nitrogen is removed. And powder scraps are removed through filtering of a filtering material in a multi-medium filter in the filtering device, so that filtering is realized. Under the action of the spraying device, the adding amount of sodium hydrogen sulfite entering the spraying tower is controlled by adjusting the adding pump, excessive sodium hypochlorite is removed, chlorine is generated, and the technical problem that in the prior art, after ammonia nitrogen is removed, water resources are wasted due to direct discharging is solved.

This invention discloses a method and system for purifying and treating release agents, belonging to the field of release agent purification and treatment. The treatment method is as follows: S1, raw release agent wastewater is introduced into a treatment tank for hydraulic cavitation treatment, while ozone is simultaneously introduced. Floating oil, waste wax, and solid particulate matter in the wastewater float to the surface of the treatment tank and overflow into a scum tank; S2, after cavitation treatment, when there is very little scum on the surface of the treatment tank, the treated liquid in the treatment tank is introduced into a media filter for further filtration. The filtered clean liquid is then transported to a supply tank; S3, when the media packing adsorbs a thick wax layer, the pressure in the filter tank reaches a threshold. Water from the circulating water tank is introduced into the filter tank to backwash the wax layer. The water containing wax after backwashing enters the circulating water tank; S4, when the wax content in the circulating water in the circulating water tank reaches a threshold, a low-temperature steel roller is used to cool the water, causing wax to precipitate onto the steel roller. The wax is scraped off and collected, and the water is reused. This invention uses hydraulic cavitation to break out and remove oil and wax from waste liquid, and further removes residual waste wax from the treated liquid through media filtration, ensuring the cleanliness of the recycled mold release agent liquid.

The utility model relates to the field of desalted water equipment, in particular to a desalted water production system of a nuclear power plant. The utility model relates to a desalted water production system for a nuclear power plant, which comprises a nuclear power plant cooling water collection tank, an ozone oxidation tower, a flocculation sedimentation tank, a multi-medium filter, an activated carbon / resin filter, a desalted seawater collection tank, a roll-type ultrafiltration energy recovery device, a roll-type ultrafiltration device, a reverse osmosis energy recovery device and a reverse osmosis device which are sequentially arranged, the device comprises an anion exchanger, a cation exchanger, a mixed bed and a demineralized water collecting tank.

The multi-medium filter of the water purification equipment comprises a tank body, a bottom support is detachably arranged at the bottom of the tank body, a water inlet pipe is arranged at the top of the tank body, a water outlet pipe is arranged at the bottom of the bottom support, an anti-scour guide plate is fixedly connected to the top of the inner wall of the tank body, and a plurality of flow dividing holes are formed in the bottom of the anti-scour guide plate; the device has the beneficial effects that water flow entering the tank body can be effectively and preliminarily blocked and impulsive force can be effectively relieved through the arrangement of the anti-scour guide plate and the flow dividing holes in the anti-scour guide plate, the impact force of the water flow is effectively reduced, the water flow can be effectively prevented from entering the tank body, and the service life of the tank body is prolonged. Meanwhile, through the arrangement of a motor, a rotating rod and a flow beating plate, water flow flowing down from flow dividing holes is scattered, the water flow impact force is further reduced, meanwhile, the water flow slowly and uniformly falls to a filtering medium layer, and the situation that the filtering effect is affected due to density change caused by the fact that a medium layer of traditional equipment is prone to being impacted is effectively avoided.

The utility model discloses a boiler water replenishing pretreatment device, and belongs to the technical field of boiler water replenishing treatment equipment. Comprising a water replenishing tank, a sterilization treatment unit, a multi-stage physical filtering unit and a deep treatment unit, the sterilization treatment unit comprises a bactericide adding module and a metering pump; the multi-stage physical filtering unit comprises a multi-medium filter, an activated carbon filter and a precision filter; the deep treatment unit comprises a high-pressure pump and a reverse osmosis membrane assembly; the multi-medium filter, the activated carbon filter, the precision filter, the high-pressure pump and the reverse osmosis membrane assembly are connected through a first pipeline, the water supplementing pool is connected with the multi-medium filter through a second pipeline, the bactericide adding module and the metering pump are connected into the second pipeline through a third pipeline, and a variable frequency water pump is arranged on the second pipeline; the boiler replenishment water pretreatment device can effectively sterilize raw water, remove suspended solids and residual hardness, avoid subsequent pollution of hollow fiber membranes, and improve the quality of boiler replenishment water.

The utility model relates to the technical field of multi-medium filters, in particular to a multi-medium filter based on long-acting recycling, which comprises a filter cartridge, a gravel layer, a quartz sand layer, an activated carbon adsorption layer and a manganese sand layer are sequentially arranged in the filter cartridge from top to bottom, and a conical hopper is mounted at the bottom end of the filter cartridge. A mesh plate is installed on the inner wall of the cover body at the top of the conical hopper, a medium blocking net is arranged on the upper surface of the mesh plate, a water outlet pipe is installed at the bottom end of the conical hopper, a first valve is fixedly installed on the water outlet pipe, a flushing pipe is installed on the side face of the conical hopper, and a second valve is installed on the flushing pipe. A sewage discharge pipe is fixedly mounted on a top cylinder body of the filter cylinder, a third valve is fixedly mounted on the sewage discharge pipe, a top cover is fixedly mounted at the top of the filter cylinder, a water inlet pipe is arranged on the top cover, and an ultrasonic generator is fixedly mounted in the center of the top cover. The device has the effects of high-efficiency filtration and subsequent impurity cleaning, and is beneficial to long-acting recycling.

This utility model relates to the field of recycling devices, specifically a multi-media filter forward wash drainage recycling device. It includes a drain pipe, a cleaning mechanism, dust collection components, and a three-way pipe. The drain pipe is connected to a directional valve, which in turn connects to two connecting pipes. The cleaning mechanism includes a cleaning component connected to each of the two connecting pipes, and a cleaning half-cylinder b hinged to each of the two cleaning components. A drive component is driven to the two cleaning components. A dust collection component is placed on each of the two cleaning components, and each dust collection component includes a mounting post connected to the cleaning component, a mesh holder arranged circumferentially on the mounting post, and a rectangular block arranged on the mounting post. The three-way pipe connects to the two cleaning components. This utility model drives the two dust collection components separately through the drive component, and the dust collection components capture the dirt inside the cleaning components and the cleaning half-cylinder b, thereby reducing the dirt content inside the liquid.

The utility model discloses a kind of ultrapure water preparation systems, it includes total organic carbon on-line analyzer, controller, multi-medium filter, activated carbon filter, filtered water tank, positive bed, decarbonization tower, negative bed, reverse osmosis device, first ultraviolet lamp, primary mixed bed, second ultraviolet lamp, polishing mixed bed and terminal ultrafilter, total organic carbon on-line analyzer is connected with the water outlet of terminal ultrafilter, to detect the total organic carbon in the water production of terminal ultrafilter, controller is connected with total organic carbon on-line analyzer and backwash pump, total organic carbon on-line analyzer can detect the total organic carbon content in the water production of terminal ultrafilter, and backwash activated carbon filter by controller control backwash pump with first backwash period or second backwash period, to make activated carbon filter in bacterial breeding consume small molecule organic matter in water.The ultrapure water preparation system of the utility model embodiment is high in work efficiency, and good in economy.

1. The name of the design product: medium filter (WIFI6E outdoor small base station). 2. The use of the design product: the design product belongs to a frequency selection device, which can make the specific frequency component of the signal pass through, thereby attenuating other frequency components. 3. The design points of the design product: the combination of shape and pattern. 4. The picture or photo that best indicates the design points: perspective view 1.

This invention discloses a wastewater recycling treatment device for automotive touch glass processing, belonging to the technical field of wastewater treatment equipment. It includes a base plate with a replacement assembly and multiple filter assemblies. Multiple filter chambers are employed, each containing a fan-shaped filter screen with different filtration precision. Combined with a multi-media filter for further deep purification, it effectively removes suspended solids and impurities from the wastewater. During filtration, the fan-shaped filter screen can rotate back and forth with an auxiliary circular plate, preventing excessive accumulation of impurities on the screen surface and effectively preventing clogging. This also improves filtration efficiency and service life. Through the cooperation of the replacement assembly and the filter assemblies, automatic clamping, disassembly, and installation of the fan-shaped filter screen can be achieved, significantly reducing maintenance difficulty and time, and improving the continuous operation capability of the equipment.

A kind of low concentration chromium-containing leather wastewater treatment method, comprising the following steps: step one, after adjusting leather wastewater, send into membrane separator and obtain concentrated solution and waste liquid;Step two, send waste liquid into resin adsorption tank, and carry out adsorption recovery to chromium ion;Step three, send concentrated solution into hydrolysis fermentation tank and carry out hydrolysis fermentation;Then send into anaerobic tower and carry out further decomposition;Step four, send concentrated solution of step three into multi-medium filter and treat, the supernatant obtained is sent into resin adsorption tank;The waste of backwashing multi-medium filter is transported to adjusting tank and is treated again;Step five, the wastewater treated after resin adsorption tank is treated biochemically;Step six, resin adsorption tank is treated by desorption, then the pH of desorption waste liquid is adjusted, so that chromium ion is precipitated to obtain chromium precipitation recovery;The present application not only recycles chromium ion in leather wastewater, but also can carry out reduction treatment to leather waste in leather wastewater, reduce the pollution to environment.

The present application relates to a kind of PVA fiber production wastewater treatment method and device.Wastewater is after entering multiple medium filter by homogeneous adjustment pH, reduce the content of suspended solids in wastewater.Multiple medium water production uses ultrafiltration system to reduce the content of suspended solids and colloid.Ultrafiltration water production enters the first reverse osmosis membrane concentration, the first reverse osmosis membrane concentrated water is used to remove hard filter to remove hard, the water production of remove hard filter is used to further concentrate by second reverse osmosis membrane system.Second reverse osmosis membrane concentrated water is after ion concentration deployment system, concentrated water is treated by crystallization, most of crystallization mother liquor is backflowed to ion concentration deployment system, ion concentration deployment water production is further concentrated by third reverse osmosis membrane, third reverse osmosis membrane concentrated water is treated by power plant ash spray, the water production of three reverse osmosis units is further reduced by senior oxidation after reuse.

This utility model relates to the field of water purification technology, and in particular to water purification and filtration equipment for water conservancy projects. It includes a device body comprising an upper body and a lower body fixedly connected vertically, with a filter screen connected between them. A top cover assembly is provided at the upper end of the upper body. Several slots are provided on both sides of the interior of the upper body, and detachable filter plates are arranged between these slots. A rotatable dynamic filter assembly is provided inside the lower body, with one end of the dynamic filter assembly connected to a driving component. The driving component drives the dynamic filter assembly to rotate. A downwardly extending protrusion is fixedly connected to one end of the filter screen. This utility model employs a dual filtration method combining filter plates and a dynamic filter assembly. Compared to traditional single-media filter structures, this method effectively removes impurities and pollutants from water, significantly improving the removal rate of suspended solids and the adsorption efficiency of chemical pollutants.

The invention belongs to the technical field of water treatment, and particularly relates to a method for recycling electroplating rinsing wastewater by ion exchange resin, which comprises the following steps: S01, carrying out quality and flow division on electroplating drainage, and collecting qualified drainage; s02, sequentially adopting a multi-medium filter and activated carbon to filter and pre-treat the qualified discharged water, and collecting pre-treated produced water; and S03, the pretreated produced water is pressurized through a water pump and then sequentially treated through a front cation exchange bed, an anion exchange bed and a rear cation exchange bed, obtained qualified produced water enters a water supply collecting box to be used for supplying water to an electroplating production line, and obtained unqualified produced water returns to the pretreated produced water to be recycled. According to the method for recycling and reusing the electroplating rinsing wastewater through the ion exchange resin, in the wastewater treatment process of the electroplating rinsing wastewater, water can be drained in batches according to different qualities, the drained water with different qualities can be recycled subsequently, the recycling effect is improved, and the recycling rate of the electroplating rinsing water is high.

The utility model relates to the technical field of wastewater treatment equipment, in particular to electroplating wastewater treatment equipment which comprises a cage lifting grating, an adjusting box, a cyanide breaking reaction tank and a comprehensive adjusting tank, a lifting cage grating is placed on the inner wall of the adjusting box through a hook, one side of the adjusting box is connected with a cyanide breaking reaction tank through a water pump and a water pipe, and one side of the cyanide breaking reaction tank is connected with a comprehensive adjusting tank through a water pump and a water pipe. According to the electroplating wastewater treatment equipment, it is ensured that the SDI value can meet the water inlet requirement of the DTRO filter through the multi-medium filter, a reducing agent and an antisludging agent are added into the pipeline mixer, it is ensured that no residual chlorine enters the DTRO filter, it is ensured that no particulate matter larger than 5 micrometers enters the DTRO filter through the security filter, wastewater is fed into the DTRO filter through the plunger pump, and COD, COD and the DTRO filter are subjected to chemical vapor deposition. Pollutants such as heavy metals are separated and removed under the action of the semipermeable membrane, so that the electroplating wastewater treatment equipment performs automatic treatment.

The utility model relates to filter testing device technical field discloses a kind of self-cleaning filter testing device, including first box and second box, air duct is opened in the first box, flow equalizing plate and filter piece mounting portion are sequentially arranged from left to right in the second box, fan mounting portion is installed in the side of the second box, and cleaning assembly is also provided in the second box, for cleaning filter piece, the filter efficiency, resistance, dust capacity of medium filter can be detected under different cleaning water pressure and flow by filter piece mounting portion and cleaning assembly, filter efficiency, resistance, dust capacity of filter after cleaning, when detection is completed, it can directly clean, it is convenient for user operation, solve the problem that the cost of test bench in prior art is higher, and not easy to operate.