5005 results about "Purified water" patented technology

The invention relates to a method for preparing a lithium iron phosphate / carbon composite material of a lithium ion battery, which belongs to the technical field of lithium ion batteries. The method for preparing the lithium iron phosphate / carbon composite material of the lithium ion battery comprises the following steps of: 1) preparing a suspending graphene-dispersed aqueous solution system, namely, crushing graphite to 1 to 5 microns, adding the crushed graphite into distilled water or purified water, adding 0.1 to 5 percent of surfactant, heating with stirring the mixed solution to 180 to 250 DEG C in a sealing way, performing stirring for 2 to 6 hours and reducing the temperature; 2) crushing lithium iron phosphate to the particle size of 1 to 5 microns, adding the crushed lithium iron phosphate into the distilled water or the purified water, adding with stirring 0.01 to 1 percent of coupling agent, performing uniform stirring, adding the graphene-dispersed aqueous solution, and performing stirring and filtration; and 3) vacuum-drying solid powder obtained by the filtration, and calcinating the dried solid powder for 2 to 12 hours to obtain the graphene-coated lithium iron phosphate cathode material. The method has the advantages of simple process, high material performance, high conductivity, high bulk density, high compacted density and the like.

The invention provides a sulfamic acid continuous crystallization production device and process, the sulfamic acid continuous crystallization production device comprises a filter box and a production box, the production box is fixedly connected to the upper surface of the filter box through bolts, the top end of the production box is provided with a feeding pipe, the middle part of the interior of the production box is provided with a partition plate, and the middle part of the partition plate is provided with a conveying pipe; a discharging pipe, a production reaction module and a filtering and cleaning module are arranged between the production box and the filtering box. According to the sulfamic acid continuous crystallization production device and the sulfamic acid continuous crystallization production process, in the sulfamic acid continuous crystallization production process, when sulfamic acid crystals are filtered out from mother liquor through the filter cartridge, purified water is sprayed into the filter cartridge through the spray head; and the sulfamic acid crystals can be quickly and uniformly washed to remove impurities through the filter cartridge which continuously shakes in a reciprocating manner in the rotating process, so that the continuous crystallization production efficiency of the sulfamic acid can be effectively improved.

To provide a steam distillation system for producing clean water by purifying water.SOLUTION: A fluid steam distillation system is provided, the system comprises: a control system for controlling the fluid steam distillation device, the control system comprising, a release valve, a raw material flow controller for controlling a raw material flow rate valve, and a discharge level sensor connected to the release controller and the raw material flow rate controller. The discharge level sensor transmits a signal related to a discharge level to the discharge controller and the raw material flow rate controller which indicates the discharge level, the raw material flow rate controller drives the raw material flow rate valve on the basis of at least the discharge level sensor signal. The discharge controller drives the discharge valve on the basis of at least the discharge level sensor signal, and the discharge level and the raw material flow rate level are held by using the discharge level sensor signal as input.SELECTED DRAWING: Figure 75

The invention belongs to the technical field of cutting fluid wastewater treatment supervision, and particularly relates to a cutting fluid wastewater treatment system for machine tool accessory processing, which comprises a wastewater step-by-step treatment unit, an in-out online monitoring unit, a pollution analysis unit, a wastewater treatment management and control analysis unit and an intelligent management end, various pollutants in cutting fluid wastewater are removed by integrating various treatment technologies through the wastewater step-by-step treatment unit, and the in-out online monitoring unit samples the cutting fluid wastewater before treatment and purified water after treatment and collects monitoring data of various pollution parameters in corresponding sampled liquid. The pollution analysis unit judges the pollution condition based on the monitoring data of each pollution parameter in the corresponding sampling liquid, and the wastewater treatment management and control analysis unit judges whether wastewater treatment is abnormal or not through analysis and accurately evaluates the treatment management and control performance for cutting fluid wastewater treatment. The treatment efficiency and the treatment effect of the cutting fluid wastewater can be guaranteed, and the intelligent and automatic levels are high.

The invention relates to the technical field of water drinking equipment, and provides an ice-making purifying water dispenser and a control method, device and equipment thereof, a storage medium and a product. In the ice-making water purifying and drinking machine, a heating module is used for heating water in a water purifying tank; the ice making module is used for making ice by using water in the cold water tank; the filtering module is used for purifying a water source entering from the water inlet and storing the purified water source into the water purifying tank. The method comprises the following steps: acquiring a first water level state indicating whether the water purification tank is full of water in the water purification tank and a second water level state indicating whether the cold water tank is full of water in the cold water tank; when the clean water tank and the cold water tank are full of water, a standby state is entered; and when at least one of the clean water tank and the cold water tank is not full of water, a water production state is entered. The two water tanks of the ice-making purifying and drinking machine share one set of filtering system, so that a user can obtain clean ice blocks while purifying and drinking are realized; through real-time detection of the water level states in the two water tanks, water can be supplemented in time, and the convenience and satisfaction degree when a user uses the water purifying and drinking machine are improved.

The utility model discloses an all-in-one machine for purifying and drinking coffee, which comprises a water purification system (1), a water supply system (2), a water supply system (3) and a control system (4), and is characterized in that the water purification system (1) comprises a filtering module (11); the coffee system (2) is used for processing purified water and coffee powder into coffee liquid, and the water inlet end of the coffee system (2) is in fluid communication with the purified water end of the filtering module (11); the liquid outlet system (4) comprises a direct drinking port (41) and a coffee port (42), the direct drinking port (41) is in fluid communication with the water purification end of the filtering module (11), and the coffee port (42) is in fluid communication with the liquid outlet end of the coffee system (2); the water purifier is characterized in that the filter module (11) adopts a filter element for mineral elements to pass through, so that the mineral elements are reserved in the purified water. Compared with the prior art, the coffee purifying and drinking all-in-one machine is suitable for preparing coffee.

The invention provides an aerobic denitrifying bacterium with zoogloea character and application thereof, and belongs to the technical field of wastewater treatment, the aerobic denitrifying bacterium is specifically acinetobacter baumannii N-1 (Acinetobacter sp.N-1), the acinetobacter baumannii is preserved in the China Center for Type Culture Collection, and the preservation number is CCTCC NO: M 20242568. The acinetobacter baumannii N-1 provided by the invention not only can perform wastewater denitrification through aerobic denitrification and has efficient denitrification capacity, but also can realize separation of sludge and purified water by forming zoogloea, so that the acinetobacter baumannii N-1 has good application potential in wastewater treatment by utilizing an activated sludge process.

The utility model discloses a soil moisture tensiometer, which belongs to the technical field of soil moisture tensiometers, and comprises a glass tube, a fixing component is arranged on the peripheral side of the bottom of the glass tube, a plug is arranged at the top end of a pressure monitoring device, a mounting sleeve is arranged below the plug, and the mounting sleeve is fixedly connected to the outer side of the top of the glass tube. A water supplementing and exhausting assembly is arranged on one side of the mounting sleeve. According to the water purifier, a worker manually presses a circular plate to drive a fixing rod and a piston to move, purified water stored in a fixing barrel is conveyed into a connecting block, and when the pressure of the connecting block is larger than the elastic force of a spring, water flow of the connecting block can drive a ball head block, a side block and a tooth block to move; at the moment, the liquid is conveyed into the glass tube through the stepped through hole and the one-way water inlet so as to perform water replenishing treatment on the interior of the glass tube, so that the mounting and dismounting work of the plug is reduced, the influence on the sealing performance of the plug after a long time is prevented, and the influence on the monitoring precision of a product is further prevented.

The invention provides a sewage treatment method and treatment system utilizing effective distribution before and after combination of AOA and a carbon source. Belongs to the technical field of sewage treatment. The method comprises the following steps: sequentially carrying out denitrification, first anaerobic phosphorus release, first nitrification, second nitrification and second anaerobic phosphorus release on sewage to obtain a first nitrification solution; part of the first nitrification liquid flows back to the denitrification process, the remaining first nitrification liquid is precipitated, and purified water and sludge are obtained; or sequentially carrying out denitrification, first anaerobic phosphorus release, first nitrification and second nitrification on the sewage to obtain second nitrification liquid; part of the second nitrification liquid is refluxed into the denitrification process, the remaining second nitrification liquid is sequentially subjected to second anaerobic phosphorus release and precipitation to obtain purified water and sludge, the nitrification liquid is refluxed, nitrate which is not subjected to denitrification is refluxed to be further denitrified, and therefore the concentration of nitrate in treated effluent and the concentration of total nitrogen in the effluent are reduced. The sewage treatment effect is improved.

The invention belongs to the technical field of oil-gas-water separation equipment, and discloses an ultrasonic detonation rotational flow microbubble flotation device which comprises a vertical container tank with inner and outer stepped double-barrel design and a separation inner barrel, an oil gathering umbrella is arranged on the upper portion of the interior, an oil discharge connector is arranged on the outer wall of one side, and surrounding physical demulsification coalescence filler is arranged on the upper portion of the area between the tank and the inner barrel. And the lower part of the separation inner cylinder is provided with a reverse symmetrical double-tangential rotational flow inlet, the bottom of the separation inner cylinder is externally provided with a purified backflow water inlet and is communicated with the purified water diversion outlet in a process manner, and the bottom of the separation inner cylinder is internally provided with a gas-water mixer and an ultrasonic knocker. By combining ultrasonic cavitation, rotational flow centrifugation, micro-nano bubbles and physical coalescence demulsification technologies, the diameter of the bubbles is reduced by 15 microns or below through the ultrasonic detonation cavitation effect, fine oil drops and suspended particles which are difficult to treat through traditional flotation and are 10 microns or below can be captured, the method is suitable for multi-phase separation of discrete high-concentration fine pollutants, and the flotation efficiency is improved. Complex separation scenes such as oily sewage, micro-plastics and mineral flotation can be treated.

The present invention applies to the technical field of pet caring equipment, and in particular relates to an intelligent water dispenser for a pet, including a control device, a water purifying tank, a wastewater tank, a drinking water basin, a water purifying conduit, a wastewater conduit, a water purifying flow driving device, and a wastewater flow driving device. The drinking water basin is provided with a drinking water outlet, a rinse water outlet, and a wastewater collecting port. The purified water in the water purifying tank flows to the drinking water outlet and the rinse water outlet via the water purifying conduit. The solution has the function of discharging accumulated water of the drinking water basin and rinsing the bottom of the drinking water basin at the same time, thus ensuring that the drinking water basin is clean, and improving the cleanliness of the drinking water of a pet.

The invention relates to the technical field of integrated water use household appliances, and provides integrated water use equipment and a wastewater discharge control method thereof. The water purification unit is provided with a water inlet, a first wastewater outlet and a purified water outlet; the living pipeline is provided with a domestic water inlet and a domestic water outlet, the combustion heating unit is located between the domestic water inlet and the domestic water outlet and communicated with the living pipeline, and the water purification unit is communicated with the domestic water inlet; the wastewater treatment unit comprises a wastewater tank, a first one-way valve and a first electromagnetic valve, the wastewater tank is provided with a second wastewater outlet, a wastewater inlet, an exhaust port and a first opening, and the first electromagnetic valve is respectively communicated with the first opening and the domestic water inlet of the wastewater tank; the first one-way valve is respectively communicated with the second wastewater outlet and the living pipeline, and the wastewater inlet is communicated with the first wastewater outlet. The overall size and the occupied space of the integrated water equipment can be reduced.

The invention relates to a service life correction method and system of a water purification filter element, electronic equipment and a storage medium. The method comprises the following steps: obtaining a water efficiency grade based on water flow of a water purification system; judging whether spectral data of inlet water needs to be acquired or not according to the water efficiency grade; after the spectral data of the inlet water is obtained, preprocessing the spectral data to obtain first spectral data of the tap water; inputting the first spectral data into a pre-trained water quality prediction model, and predicting the water quality of the purified water to obtain a first water quality data set; spectral data of the purified water after purification is obtained and preprocessed to serve as a second water quality data set; comparing the first water quality data set with the second water quality data set; and according to a comparison result, correcting the water quality prediction model to update the service life of the filter element of the water purification system.

The invention relates to the technical field of mineral oral liquid preparation, and mainly relates to a preparation process of mineral oral liquid, which comprises the following steps: S1, preparing raw materials; s2, the raw materials are poured into a discharging unit in the preparation tank to be evenly discharged; s3, stirring the purified water by using a stirring unit in the preparation tank; s4, carrying out primary filtration on the dissolved stock solution through a 15 [mu] m titanium rod; s5, an acidity regulator is added into the stock solution, and the pH value of the stock solution obtained after primary filtration is made to range from 3.0 to 6.0; s6, carrying out secondary filtration on the stock solution of which the pH value is adjusted; s7, product filling, opening locking, sterilization for 50 minutes at 110 DEG C, lamp inspection and packaging are conducted, a traditional preparation technology is improved, a discharging unit is designed in a preparation tank, raw material powder and purified water are evenly discharged to the liquid level before being mixed, the situation that too much powder is discharged at a time, consequently, the powder floats on the liquid level, and caking is formed is avoided, and the product quality is improved. The solution efficiency between raw materials and purified water can be improved.

The invention discloses filtering equipment for barreled water production treatment, and relates to the technical field of barreled water production treatment, the filtering equipment comprises a mounting rack and a purified water collecting mechanism, the purified water collecting mechanism comprises a water collecting cylinder, and the water collecting cylinder is fixedly mounted in the mounting rack through bolts; the centrifugal mechanism comprises a centrifugal barrel and a rotating shaft, the centrifugal barrel is movably arranged in the middle of the interior of the water collecting barrel, and the rotating shaft is movably arranged in the middle of the interior of the centrifugal barrel; and the dirt scraping mechanism comprises a plurality of limiting strips and a lower dirt scraping plate, and the limiting strips are uniformly and fixedly mounted at the top end of the rotating shaft through welding. By driving the centrifugal cylinder to rotate at a high speed, solid waste such as silt in raw water is isolated in the centrifugal cylinder, purified water is sucked through the filter rod, then the filter rod is extruded through the water scraping plate when the centrifugal cylinder rotates, the purified water sucked in the filter rod is rapidly discharged, and the filtering efficiency of barreled water in the production process is improved.

The invention belongs to the technical field of soil improvement, and discloses a preparation method of a humic acid biochar saline-alkali soil conditioner. The preparation method comprises the following steps: by taking waste edible fungus chaff as a raw material, activating the waste edible fungus chaff with a KOH solution, pyrolyzing the waste edible fungus chaff under a limited oxygen condition to obtain fungus chaff-based biochar with a porous structure, mixing the fungus chaff-based biochar with humic acid, a sodion replacement material (desulfurized gypsum powder and / or calcium chloride) and purified water according to a certain mass ratio, and drying and fixing at medium temperature to obtain the modifier. According to the modifier, the porous adsorption performance of the biochar, the pH adjustment and agglomeration improvement functions of the humic acid and the sodium ion replacement capacity of the calcium source material are comprehensively exerted, the sodium ion content in the saline-alkali soil is synergistically reduced, and the soil agglomeration structure and the water and fertilizer retention capacity are improved. The prepared modifier is especially suitable for soil treatment of moderate and severe saline-alkali soil in which the ratio of sodium ions to exchangeable cations exceeds 10%, and has agricultural waste resource utilization and ecological restoration values.

The utility model discloses a prefilter which comprises a shell part and a filter element, the shell part is provided with a water inlet, a water outlet and a drain outlet, the filter element is arranged in the shell part and is matched with the shell part to form a raw water cavity communicated with the drain outlet and a purified water cavity communicated with the water outlet, a water inlet channel is arranged between the water inlet and the raw water cavity, and a water outlet channel is arranged between the water inlet and the purified water cavity. A backwashing channel is arranged between the water inlet and the water purification cavity, and a plugging piece for opening and closing the sewage draining exit is arranged at the sewage draining exit; and the water path switching mechanism is arranged on the shell part and is used for controlling the switching opening of the water inlet channel and the backwashing channel. When the pre-filter disclosed by the utility model is in a filtering state, the backwashing channel is in a closed state, so that if a backwashing filter screen is arranged on the backwashing channel, the backwashing filter screen cannot filter water flow in the filtering state, so that dirt on the backwashing filter screen can be reduced, and normal filtering of the backwashing filter screen in the backwashing state is ensured.

The invention discloses a riverway dredging method which comprises the following steps: dynamically scanning a riverway along a spiral propulsion path, and obtaining riverbed topographic data and sediment thickness in real time; a three-dimensional riverbed model is established based on the riverbed topographic data, and a core dredging area, a transition maintenance area and an ecological reserve area are divided in the three-dimensional riverbed model according to the sediment thickness; the core dredging area is divided into a surface layer, a middle layer and a bottom layer in the vertical direction, and a differentiated dredging process is executed; carrying out mud-water separation treatment on the dredged material, purifying the separated water, and reinjecting the purified water into the river channel; prefabricated ecological concrete modules are laid on the surface of a dredged riverbed, diversion trenches and biological nests are formed, and the biological nests are filled with polylactic acid / straw composite fiber felts containing local submerged plant seeds. Through spiral scanning, three-dimensional modeling and intelligent partitioning, integration of monitoring, planning, construction and repairing is achieved, accurate dredging is implemented, and the dredging efficiency is improved.

The invention discloses a preparation method of minoxidil liniment. The preparation method comprises the following steps: uniformly mixing propylene glycol, absolute ethyl alcohol and about 40% purified water until no obvious layering exists, and finally adding minoxidil to stir and dissolve to obtain the minoxidil liniment. According to the preparation process provided by the invention, purified water and absolute ethyl alcohol can form a latent solvent, so that the solubility of minoxidil in a single auxiliary material is greatly improved, and subsequent preparation of the digoxin injection is facilitated.

The embodiment of the invention provides a water purifier and a control method thereof, the water purifier is provided with a raw water inlet and a purified water outlet, and the water purifier also comprises a water production module, a water tank, a hot tank and a control module; a water inlet of the water production module is connected to the raw water inlet, and a water outlet of the water production module is connected to a water inlet of the water tank and is also connected to a water inlet of the hot tank; a water outlet of the water tank is connected to the purified water outlet through a first waterway, and a water outlet of the hot tank is connected to the purified water outlet through a second waterway; a first pumping device and a second pumping device are respectively arranged on the first water path and the second water path; at least one of the first pumping device and the second pumping device is a flow-adjustable pumping device, and the control module is used for determining the flow of the flow-adjustable pumping device according to the expected water taking temperature. By adjusting the flow of the adjustable pumping device, the proportion of hot water in the hot tank and / or normal-temperature water is adjusted, and mixed water with any water temperature, which is accurate in temperature and lower than the temperature of the hot water in the hot tank, can be obtained.

The invention relates to the technical field of wormwood essential oil, in particular to a wormwood essential oil extraction method which comprises the following steps: S1, preparing materials, namely preparing fresh wormwood and water, purifying the water by using water treatment equipment, preparing the water into purified water, cleaning the wormwood by using the purified water, removing dust on the surface of the wormwood, and separating leaves and stems of the wormwood; s2, smashing, wherein wormwood leaves and wormwood stems are separated and cut up; s5, separation: disinfecting the wormwood essential oil through high-temperature and high-pressure equipment, then separating volatile oil and water, and then separating the essential oil from other impurities by adopting an extraction method. The method has the advantages that the purity of the wormwood essential oil is improved, and the quality of the wormwood essential oil is facilitated.

The invention provides a waste gas treatment device and process for light brick production, and relates to the technical field of waste gas treatment. A control panel and a buzzer alarm are mounted on the left side of the waste gas pretreatment unit, and the control panel is electrically connected with the buzzer alarm; the exhaust unit is mounted at the top end of the waste gas pretreatment unit; four groups of waste gas purification units are arranged, and the four groups of waste gas purification units are mounted in the exhaust unit; the driving unit is mounted on the right side of the waste gas pretreatment unit; the auxiliary unit is mounted on the waste gas pretreatment unit and the exhaust unit; the detection unit is mounted on the waste gas pretreatment unit; the pretreatment liquid can be selected from purified water or chemical liquid and the like, so that particulate matters or harmful gas in waste gas can be conveniently pretreated; the problems that a pretreatment structure is generally lacked, tiny particles and harmful gas in waste gas cannot be pretreated, and the subsequent purification difficulty is increased are solved.

The utility model belongs to the technical field of water quality detection, particularly relates to a rapid water quality detection cylinder, and aims to solve the problems of low water quality detection efficiency and inaccurate detection result in the background technology, and adopts the scheme that the rapid water quality detection cylinder comprises a cylinder body, a servo motor is mounted on the inner wall of the bottom of the cylinder body, and an output shaft of the servo motor is fixedly connected with a rotating table; sampling barrels distributed at equal intervals are placed on the outer wall of the top of the rotating table, and a detection box is arranged at the top of the rotating table. The water quality detection device is high in automation degree, the continuity of water quality detection is embodied, the detection efficiency is improved, after water in one sampling barrel is detected and discharged, purified water in the water tank can be conveyed to the flushing spray head through the back-flushing pipe, the detection box and the water quality sensor are flushed through the flushing spray head, cleanliness of the detection box and the water quality sensor is guaranteed, and the detection efficiency is improved. The detection box and the water quality sensor are cleaned in time, so that the accuracy of a water quality detection result is ensured.

The invention provides an intelligent lime adding control method and system and a medium. The method comprises the following steps: acquiring real-time water flow data, calculating to obtain effective water flow parameter data, processing by combining the obtained historical average water flow parameter data and historical lime average dosage data to obtain predicted lime dosage data, acquiring lime performance parameter data and lime average reaction duration data, and processing to obtain lime effective utilization rate data; lime adding quantity demanded data are obtained by processing lime effective utilization rate data and lime predicted dosage data, then screw conveyor grade data are obtained through threshold value comparison, and finally the purified water state is obtained through threshold value comparison after purified water standard parameter data and purified water real-time parameter data are processed. Further adjusting the lime adding demand quantity data; therefore, intelligent adding of the lime is realized through calculation of the predicted lime dosage data, the lime effective utilization rate data and the lime adding demand quantity data and determination of the state of the purified water.

The invention provides a double-sided grinding device and method, and belongs to the technical field of semiconductor manufacturing. The double-face grinding device comprises an upper fixed disc, a lower fixed disc, a bearing disc and a driving mechanism, the upper fixed disc and the lower fixed disc are oppositely arranged, and the bearing disc is arranged on the side, facing the upper fixed disc, of the lower fixed disc and comprises a plurality of workpiece bearing disc holes; the driving mechanism can drive the bearing disc to rotate relative to the upper fixed disc and the lower fixed disc; wherein the upper fixed disc is provided with at least one purified water flow guide hole facing the surface of the lower fixed disc, and the purified water flow guide hole is used for spraying purified water towards the lower fixed disc. According to the technical scheme, the problem that the ground silicon wafer is adsorbed on the upper fixed disc and falls to the surface of the lower fixed disc when rising to the air to cause fragments can be solved.

The invention discloses a low-permeability rock breakthrough pressure testing method based on schlieren imaging. The method comprises the following steps: putting a test rock sample into a confining pressure cavity of a rock sample holder; the injection end of the rock sample holder is connected with the fluid injection module, the outlet end of the rock sample holder is connected with the schlieren cavity, and the confining pressure cavity is connected with the confining pressure injection module; vacuumizing a pipeline of the testing device, injecting a degassed purified water medium into the schlieren cavity, and then carrying out optical path debugging until a clear schlieren image is acquired; loading confining pressure stress on the test rock sample, injecting water until the test rock sample is saturated, injecting carbon dioxide, observing a schlieren imaging system, recording a schlieren image of carbon dioxide breakthrough by a high-precision camera when the carbon dioxide breaks through the saturated rock sample, recording the breakthrough moment of the carbon dioxide, and recording the upstream and downstream pressure difference value at the moment; the breakthrough pressure is the breakthrough pressure of the carbon dioxide of the tested rock core sample. According to the invention, a trace concentration of carbon dioxide can be visually observed to break through the rock sample, so that the breakthrough pressure of the low-permeability rock can be accurately detected.

The present disclosure provides, among other things, devices and methods for harvesting algae (e.g., microalgae) from algae culture growth media to produce a dried algae product and purified water.

The invention provides a purified water container heat insulation system and a water three-phase point reproduction device, and the structure of the purified water container heat insulation system comprises a purified water container which is filled with purified water; the inner-layer heat insulation box body is arranged outside the purified water container in a surrounding manner; the heat insulation device box body is arranged outside the inner-layer heat insulation box body in a surrounding manner; the outer-layer heat insulation box body is arranged outside the heat insulation device box body in a surrounding manner; and the refrigeration assembly is mounted on the outer side of the purified water container and the outer side of the heat insulation device box body. The purified water container heat insulation system and the water three-phase-point reproduction device can solve the problem that a conventional temperature control mode is difficult to meet the requirement of a water three-phase-point reproduction experiment for the temperature.

An industrialized fish and algae farming system with recirculating water and method are provided, and the system includes a fish and algae farming system, a fiber rotary disc filter system, and a magnetic loading flocculation system. In accordance with the fish and algae farming system, the aquaculture of fish and algae in the same space is achieved, the algae can transform CO2 exhaled by fish and nutrients, polysaccharides, vitamins and lipids, and then release oxygen to rapidly improve the aquaculture water quality. The fiber rotary disc filter system and the magnetic loading flocculation system can effectively remove suspended particles, grease, algae, bacteria, viruses and the like in aquaculture sewage, thus achieving the deep purification of the aquaculture sewage. The purified water quality reaches the aquaculture standards in fishery and can be directly recycled, and the whole system has no sewage discharge.

The invention relates to the technical field of sewage filtering, in particular to an ultrafiltration membrane sewage filtering device which comprises a shell unit and a filtering unit. Wherein the shell unit comprises a shell body, an upper cover and a lower cover, the two ends of the shell body are open, the upper cover and the lower cover are arranged at the two ends of the shell body respectively, the upper cover is communicated with a purified water outlet pipe, and the shell body is communicated with a flushing pipe. According to the invention, the cleaning process is carried out by stages from low-flow-speed water flow flushing to cleaning ring brushing driven by the axial flow blades, to deformation and flushing of the ultrafiltration membrane filaments through up-down movement of the outer shell, and finally, the deformed and diffused ultrafiltration membrane filaments are flushed in combination with the water flow; by means of the series of steps, it is guaranteed that the ultrafiltration membrane filaments can be comprehensively and deeply cleaned, water flow with high flow speed and high water pressure is prevented from being used in the whole cleaning process, possible damage to the ultrafiltration membrane filaments is effectively prevented, and the service life of the ultrafiltration membrane is prolonged.