431 results about "Water based" patented technology

The invention discloses a drinking water disinfection by-product generation prediction method based on a reaction kinetic model, and belongs to the technical field of drinking water treatment and drinking water quality prediction, and the method is realized based on the following steps: 1) constructing a disinfection by-product generation kinetic model of a model compound and determining the reaction rate of each step; 2) constructing and optimizing a disinfection by-product generation kinetic model of the natural organic matter on the basis of the obtained reaction rate to obtain a disinfection by-product generation kinetic model of an actual water body; 3) establishing a prediction method for the concentration of each component in the model; and 4) inputting the measured concentration of each component in the actual water body into the constructed model, and calculating and predicting a disinfection by-product generation kinetic result of the actual water body through the model. The method fully considers the generation kinetics of the disinfection by-products of the actual water body under different space (time) distribution, can quickly predict the generation of various disinfection by-products which are managed and controlled and are not managed and controlled but have high toxicity, provides early warning for the effluent quality of drinking water treatment, and ensures the safety of drinking water.

The invention relates to the field of robots, in particular to an off-water base station and a pool cleaning system.The off-water base station comprises a base station body and a dragging mechanism; the dragging mechanism is movably connected with the base station body, the dragging mechanism is used for dragging the pool cleaning robot ashore or sending the pool cleaning robot into a pool, and the dragging mechanism comprises a dragging body and a movable baffle. The dragging body comprises a bottom plate and two side plates arranged on the two sides of the bottom plate, the bottom plate and the two side plates define a containing cavity used for containing the pool cleaning robot, and at least one end of the containing cavity is provided with an opening; the movable baffle is arranged at the opening and rotationally connected with the two side plates, when the movable baffle makes contact with the pool cleaning robot, the movable baffle can rotate under the action of the pool cleaning robot to open the opening, and the movable baffle can move towards the interior of the containing cavity under the action of the pool cleaning robot; the pool cleaning robot can complete pile returning more conveniently and automatically.

A method for harnessing wave energy includes providing a vehicle to a body of water, the vehicle. The method includes submerging the vehicle to a depth in the body of water. The method includes operating the motor-generator of the vehicle in the first quadrant of the motor-generator. The method includes detecting a phase of a wave in the body of water based information from the processor of the detected phase. The method includes orienting the vehicle to lag the phase of the wave based on the detected phase of the wave. The method includes synchronizing an inertial acceleration of the vehicle to movement of the wave. The method includes switching the motor-generator to the second quadrant for generation mode to convert energy from the movement of the wave to electrical energy. The method includes storing the energy from the wave in the rechargeable battery source.

The invention discloses a method and system for detecting heavy metal pollutants in water based on big data, and relates to the technical field of water quality detection.The method comprises the steps that basic characteristic values of a water area to be detected are obtained; processing to generate a basic pollution condition performance value of the to-be-detected water area; processing, analyzing and generating water sampling execution parameters of the to-be-detected water area; analyzing and generating a single collection period of a water sample collection point of the to-be-detected water area; carrying out water body data acquisition on each water sample acquisition point, processing to obtain a heavy metal pollutant detection result of the water area to be detected, and carrying out early warning feedback; by analyzing basic information such as the water body type of the to-be-detected water area and counting the historical water sample monitoring data and the historical environment monitoring data of the place where the to-be-detected water area is located, heavy metal pollutant fixed-point and fixed-time detection is carried out on the to-be-detected water area, potential factors of heavy metal pollution of the to-be-detected water area are comprehensively considered, and the detection accuracy is improved.

The invention discloses a system and a method for rapidly measuring trace F <-> and Cl <-> in water based on chromatographic gradient elution. The system comprises a water storage tank, an anion trapper, an eluent generator, a six-way sample injection valve, a guard column, an analytical column, a suppressor, a conductivity detector and a chromatographic workstation, an outlet of the water storage tank is communicated with an inlet of the leacheate generator through the anion trapper, an outlet of the leacheate generator is communicated with an inlet of the guard column through the six-way sample injection valve, and an outlet of the guard column is communicated with the conductivity detector through the analytical column and the suppressor. The chromatographic work station is connected with the leacheate generator, the six-way sample injection valve, the suppressor and the conductivity detector, and the system and the method can realize rapid measurement of strongly corrosive anions F <-> and Cl <-> in water and rapid elution of other anions, so that the measurement time of each sample is reduced by at least 40% or more.

The invention discloses a process and a system for monitoring chloride ions in circulating cooling water based on an on-line titration mode, and belongs to the field of water quality monitoring of industrial circulating cooling water. According to the process, an automatic sampling module, a titration reaction unit, a photoelectric detection module, a data processing module and a control unit cooperatively work. Circulating cooling water enters the titration reactor through automatic sampling, after an indicator is added, a titration agent is injected into the titration reactor through a peristaltic pump, a photoelectric detector judges a titration end point according to the change of the light transmittance of a solution, and the chloride ion concentration is calculated by combining a standard curve. According to the process, manual operation is replaced by online titration, 24-hour continuous monitoring is realized, turbidity interference is effectively avoided by applying photoelectric detection and a turbidity compensation algorithm, an intelligent cleaning mechanism is arranged, pipeline blockage is prevented, the service life of equipment is prolonged, and the automation level and the monitoring precision of monitoring chloride ions in circulating cooling water are greatly improved.

The invention relates to the technical field of environmental monitoring and prediction, and discloses a TKAN model-based water ammonia nitrogen concentration prediction method and system, and the TKAN model comprises a plurality of TKAN layers (including an input processing layer, a gating layer, a feature extraction layer, a state calculation layer and an output generation layer). The method comprises the following steps: acquiring to-be-detected water body data, and preprocessing to obtain water body time sequence data; acquiring current moment input data, a previous moment hidden state and a previous moment unit state through an input processing layer; obtaining an input gate state vector, a forgetting gate state vector and an output gate state vector through a gate control layer; aggregated features are obtained through a feature extraction layer; obtaining a unit state vector at the current moment through a state calculation layer; and obtaining a water body prediction result of each TKAN layer through the output generation layer, and integrating the water body prediction results of the plurality of TKAN layers to obtain a final water body ammonia nitrogen concentration prediction result. The method effectively improves the prediction precision of the ammonia nitrogen concentration of the water body.

The invention discloses an RBF-PID (Radial Basis Function-Proportion Integration Differentiation)-based intelligent dosing method and system for boiler feed water. The method comprises the following steps: collecting information; an RBF neural network model is established, the RBF neural network model is optimized based on a gradient descent algorithm to set PID controller parameters online, an RBF-PID control signal is output, a feedforward model is established, collected information is substituted into the feedforward model, and a feedforward control signal is output; the RBF-PID control signal and the feedforward control signal are superposed to obtain a master control signal; the dosing control unit receives a master control signal to adjust the frequency of an ammonia adding pump to complete dosing; according to the invention, the online learning capability of the RBF neural network is fully utilized to self-tune the PID parameters, the PID control response speed is improved, and in combination with the feedforward model based on feed water flow change, the dosing requirement of rapid load change can be met.

The invention relates to a rotational flow generator for gathering various cheap objects, in particular to a rotational flow generator for gathering air and water based on medium-low temperature gas of 40-350 DEG C as a core acting medium, the rotational flow generator, the medium-low temperature gas and the medium-low temperature gas are low-cost media, and equipment is made of medium-low temperature materials, so that the rotational flow generator is called as various cheap objects. A water collecting and pressure stabilizing area is arranged at the inner bottom of a cavity of the cyclone generator body, a backflow pipe is matched with the water collecting and pressure stabilizing area, penetrates through the cyclone generator body and then is connected with an external hot water pool, and according to the first principle of gas acting, how to enable an engine rotating wheel to reach the needed rotating speed at the lowest cost and how to rotate faster, and a series of structural designs are adopted. Two treasures, namely free atmospheric pressure potential energy and micro-cost water, are gathered together, the potential of medium and low temperature gas is completely squeezed, the detonation type unlocking of the medium and low temperature gas enables the medium and low temperature gas which is originally low in effect to create a multi-cause comprehensive total amount, and maximization of benefits is achieved.

The invention discloses an online monitoring system for tritium in water based on a PSF array, and relates to the field of nuclear energy. The on-line monitoring system for tritium in water comprises a fluid control system, a PSF detector module and an electronics system, the fluid control system automatically controls to open electromagnetic valves of a sample inlet and a sample outlet, and a peristaltic pump is started, so that a water sample to be detected is pumped into a detection chamber of the PSF detector module through the sample inlet; after the detection chamber is filled with the to-be-detected water sample, the electromagnetic valve and the peristaltic pump are automatically controlled to be closed; the PSF detector module captures precipitation energy generated by tritium decay beta particles in a water sample to be detected through a PSF array, converts the precipitation energy into photon signals, and converts the photon signals into electric signals through a detection window and a double photomultiplier; and the electronics system performs signal preprocessing on the received electric signal, and obtains corresponding tritium content monitoring data to be detected based on the preprocessed electric signal. The on-line monitoring system for tritium in water can ensure that the finally obtained measurement result is more accurate.

The invention discloses a preparation method of plasma activated water based on a micro-nano bubble synergistic effect, and mainly solves the technical problems that the generation efficiency of liquid-phase active particles in the plasma activated water prepared by the existing method is low, the chemical activity of the plasma activated water is difficult to maintain and the like. The preparation method comprises the following steps: introducing micro-nano bubbles into pure water until the pure water is saturated to obtain micro-nano bubble water; then performing plasma activation treatment on the micro-nano bubble water within 3 minutes to obtain plasma activated water based on the micro-nano bubble synergistic effect; the gas adopted by the micro-nano bubbles is one of air, oxygen, nitrogen or helium. The chemical activity of the plasma activated water is enhanced, the maintenance time of the activity of the activated water is greatly prolonged, efficient production and long-acting storage of the plasma activated water are facilitated, and the method has great significance in biomedical application of the plasma activated water.

The utility model provides a water base, oil base drillings integrated treatment system, water base, oil base drillings integrated treatment system includes feeder, spin-dry centrifugal mechanism, solid residue collection tank and liquid phase recovery device, wherein the spin-dry centrifugal mechanism includes spin-dry machine, centrifuge, spin-dry machine liquid storage bin and centrifuge liquid storage bin, spin-dry machine is connected with feeder, and centrifuge liquid storage bin is connected with centrifuge liquid storage bin. The spin dryer conveys the spin-dried and separated liquid phase into a liquid storage bin of the spin dryer; the centrifugal machine is connected with the spin dryer liquid storage bin, the centrifugal machine liquid storage bin is connected with the centrifugal machine, and the centrifugal machine conveys a liquid phase obtained through centrifugal separation into the centrifugal liquid storage bin; the solid slag collecting tank is arranged on the outer side of the spin dryer, and the solid slag collecting tank is used for recycling solid slag separated by the spin dryer; and the liquid phase recovery device is connected with the liquid storage bin of the centrifugal machine and is used for recovering a liquid phase in the liquid storage bin of the centrifugal machine. The water-based and oil-based drilling cutting integrated treatment system disclosed by the utility model is high in integration degree and small in occupied area.

The utility model relates to the technical field of wastewater treatment, in particular to a device for treating fishery tail water based on bacterial liquid, which comprises a water pump outside a water tank, a water outlet end of the water pump is fixedly connected with a first liquid conveying pipe, a water outlet end of the first liquid conveying pipe is positioned in the water tank, and a mixing bin is arranged in the center of the bottom of the inner wall of the water tank. And the mixing bin communicates with the first liquid conveying pipe, a second liquid conveying pipe is fixedly connected to the side face of the mixing bin, and a liquid outlet is fixedly connected to the end of the second liquid conveying pipe. The adding position of the bacterial liquid is limited through the second liquid conveying pipe and the liquid outlets, the bacterial liquid is added from the bottom in the water pool, moves upwards and is well mixed with fishery tail water in the water pool, meanwhile, the positions of the liquid outlets are reasonably designed, the liquid outlets are evenly distributed and dispersed in the water pool, the bacterial liquid sprayed out of the liquid outlets collides with the protruding points, the bacterial liquid is further dispersed, and the effect is good. The mixing effect of the bacteria liquid and the fishery tail water in the water pool is improved, and non-stirring type operation is achieved, so that high practicability is achieved.

The invention discloses an acid regeneration system, a control method thereof and a medium. The acid regeneration system comprises a man-machine operation device, a controller and an acid regeneration unit, and the controller is used for receiving a control instruction sent by the man-machine operation device and sending an execution instruction to the acid regeneration unit according to the control instruction; the execution instruction comprises a steam condensate water amount execution instruction, and the steam condensate water conveying device is used for controlling the water amount of conveyed steam condensate water based on the steam condensate water amount execution instruction; the acid regeneration unit comprises a desilicication unit and a roasting unit; the desiliconization unit is used for desiliconizing the waste acid liquid to obtain purified iron liquid; the desiliconization unit comprises a purified iron liquid buffer tank for storing purified iron liquid and a steam condensate water conveying device for conveying steam condensate water to the purified iron liquid buffer tank, and the steam condensate water is used for diluting the purified iron liquid; and the roasting unit is used for roasting the diluted purified iron liquid to obtain iron oxide powder and regenerated acid. The iron oxide powder obtained by the system is good in quality.

The invention relates to the technical field of water treatment, in particular to a method for treating degradation-resistant organic pollution underground water based on a micro-interface strengthening technology. According to the technical scheme, the method comprises the steps that an underground water sample is collected and subjected to pollution characteristic analysis, composite material slurry is injected into a water-containing layer to construct an interface-enhanced in-situ reaction system, and the slurry is composed of nanoscale iron-based metal particles, graphene oxide derivatives, modified biochar, a surfactant and the like; meanwhile, a low-pressure gas injection system is arranged to form a micro-aerobic environment so as to improve the interface reaction efficiency, dominant microbial communities are synchronously injected, a slow-release carbon source carrier is added so as to strengthen the biological synergistic degradation effect, and the operation state of the system is regulated and controlled through multi-parameter monitoring. According to the method, a micro-interface synergistic system integrating physical adsorption, chemical reduction and biological metabolism is constructed, refractory organic pollutants such as aryl halide and polycyclic aromatic hydrocarbon in underground water can be efficiently and stably removed, and the method has the advantages of being high in remediation efficiency, high in operation stability and wide in environmental adaptability.

The invention relates to the technical field of solid content detection, in particular to a method and system for detecting the solid content of recycled water, a medium and a program product.The method comprises the steps that solid particle feature recognition is conducted on to-be-detected recycled water, and area division is conducted on the to-be-detected recycled water based on a feature recognition result; at least one divided area and the particle distribution type of each divided area are obtained, the feature recognition result comprises area particle distribution features of each divided area, and the particle distribution type comprises normal distribution and abnormal distribution; acquiring light measurement data of each divided area, and determining the area solid content of each divided area based on the particle distribution type of each divided area and the corresponding area light measurement data; and integrating the area solid content of each divided area, determining the final solid content of the to-be-detected recycled water, and generating an early warning prompt when the final solid content is higher than a preset solid content threshold value. According to the invention, the accuracy of detecting the solid content of the recycled water is conveniently improved.

A water valve having a housing defining an inlet and an outlet and a flow path extending therethrough, a pressure sensor configured to sense a water pressure at the inlet, a valve member situated within the flow path to open and close the flow path, a solenoid actuator, and a controller coupled to the pressure sensor to read the water pressure at the inlet and coupled to the solenoid to open and close the valve is provided. The controller determines an amount of time to hold the valve open in order to dispense an amount of water based on the water pressure. The controller commands the solenoid to open and close the valve to dispense the amount of water regardless of the water pressure. The controller is also configured to open the valve to reduce inlet pressure and prevent failure thereof.

The invention relates to the technical field of computational fluid mechanics, and discloses a wedge-shaped body water entry slamming BEM-SPH coupling numerical method based on an overlapping computational domain idea. According to a specific simulation problem, a corresponding numerical model is established, a water entry slamming BEM model under a full nonlinear boundary condition is adopted to calculate a slamming load in the initial water entry process of the wedge, after high-amplitude transient slamming force capture is completed, internal flow field distribution and control point transmission speed are obtained according to speed potential and free liquid level elevation calculated by the BEM, and the initial water entry process of the wedge is completed. And an SPH calculation model is initialized by taking the result as input, so that wedge-shaped body motion attitude simulation and hydrodynamic force stress analysis after slamming occur are realized. According to the method, high-frequency pressure oscillation errors of a single SPH model in water-entry slamming peak capture are avoided, the defect that motion simulation after slamming cannot be achieved through a single BEM model is overcome, and effective simulation of the whole water-entry slamming process of the wedge is achieved.

A datacenter dry cooling system and method for cooling a heat-generating source are provided. The configuration includes an evaporating pad disposed on an air-to-liquid heat exchanger panel and an evaporating cooling water distribution arrangement for applying a controlled measured amount cooling water to the evaporating pad. The applied water serves is to be evaporated while the evaporating pad is exposed to ambient airflow to dissipate thermal energy of warmed liquid received from the heat-generating sources. The evaporating pad incorporates at least one of a temperature sensor or a humidity sensor for detecting outside temperature or humidity levels. A controller communicatively-coupled to the temperature or humidity sensor controls the volume flow of the cooling water based on the detected temperature or humidity levels.

The invention provides a movable in-situ electrolytic anti-fouling device for an offshore steel structure, comprising an electrolytic device, a traction device, a control device and a liquid level gauge. The electrolytic device comprises an electrolytic cell, the electrolytic cell is used to be arranged in the seawater near the offshore steel structure, the electrolytic cell can electrolyze the seawater to generate effective chlorine in the seawater near the offshore steel structure, thereby preventing the offshore steel structure from being polluted; the traction device is used to be arranged on the offshore steel structure, the traction device is connected to the electrolytic cell, and the traction device is used to tow the electrolytic cell up and down; the liquid level gauge is used to detect the liquid level height of the seawater near the offshore steel structure, the control device is connected to the liquid level gauge and the traction device at the same time; the control device is used to control the traction device to tow the electrolytic cell up and down according to the seawater liquid level height value measured by the liquid level gauge, so that the electrolytic cell is always located in the seawater near the offshore steel structure.

The invention discloses an oil-water two-phase seepage model construction method and system based on a critical path and a medium. Relates to the technical field of oil-gas field development. According to the scheme, a traditional black oil model simulation technology and a critical radius technology based on a critical path seepage theory are combined, and on the basis of ensuring the scale of an oil reservoir model, the oil-water two-phase seepage characteristic oil reservoir simulation method considering the micro-scale critical path is provided; microscopic characteristics such as a pore throat structure in a real reservoir rock are restored to the greatest extent by using the critical radius, and phenomena such as a dominant channel (critical path) of seepage of oil-water two-phase fluid in a pore throat and factors influencing displacement efficiency are researched from a microscopic perspective, so that a higher-precision oil reservoir simulation analysis result is obtained; according to the scheme, the flow and pressure of each component of oil and water are calculated directly based on the critical radius and the critical path length, a static oil-water relative permeability curve does not need to be input in the simulation process, and the stress state and the change process of each part of the oil reservoir can be reflected more directly.

Described herein is an easy-to-compost water based adhesive composition and the preparing method thereof. The compostable water-based adhesive composition, comprising (a) at least one vinyl acetate-ethylene copolymer, (b) at least one phosphoric acid-modified starch, (c) at least one vegetable oil, and (d) water, wherein the composition has a solid content of larger than 20%.

The invention relates to the technical field of clothes treatment equipment, and provides washing equipment, a control method and device thereof and a storage medium. The washing equipment is provided with a spectrum sensor. The control method comprises the following steps: acquiring spectrum data of washing water through the spectrum sensor; determining the allergen type and / or allergen content in the washing water based on the spectral data; based on the allergen type and / or allergen content, washing parameters of the washing equipment are adjusted. The spectral sensor is arranged to obtain the spectral data of the washing water so as to detect the allergen type and / or the allergen content of the clothes, the washing parameters of the washing equipment are adjusted based on the allergen type and / or the allergen content, targeted washing is conducted on the clothes, deep cleaning of specific allergens on the clothes is achieved, and the washing effect is improved.

The application relates to an automatic magnesium oxide coating analysis system and method, and belongs to the technical field of coating quality analysis. The method comprises the following steps: acquiring the properties, infrared spectrum and environmental temperature and humidity data of the magnesium oxide coating, and constructing a multi-source feature set; analyzing the distribution dispersion and local enrichment risk of free water based on a dynamic migration model, and analyzing the bond weakening degree and dissociation risk of combined water based on a chemical stability model; generating free water treatment process parameters for inhibiting structural damage and combined water treatment process parameters for preventing performance attenuation according to abnormal analysis results and coating properties; and through coupling influence analysis on the two types of process parameters, the balance requirements of coating structural integrity and chemical stability are coordinated, an optimized process scheme is generated, and synergistic regulation and control are realized. The application realizes accurate identification, independent analysis and synergistic control of free water and combined water, and improves the accuracy, reliability and quality consistency of coating moisture treatment.

This invention generally relates to high concentration water based defoaming compositions and methods of use thereof, as well as a method for preparing a high concentration water based defoaming composition. In particular, the disclosure provides defoaming compositions that are especially suitable in pulp and paper industry, as well as in any other processing industry when foaming is unwanted. The inventive high concentration water based defoaming compositions provide enhanced defoaming performance and display high stability.

The application discloses an intelligent pH adjusting device for inner cooling water and an application method thereof. The intelligent adjusting device comprises a pH meter before dosing, a conductivity meter before dosing, a control assembly, a metering pump, a lye tank, a conductivity meter after dosing and a pH meter after dosing. The output ends of the pH meter before dosing, the conductivity meter before dosing, the conductivity meter after dosing and the pH meter after dosing are connected with the control assembly. The output end of the lye tank is communicated with a circulating loop of the inner cooling water. The metering pump is installed on the output pipeline of the lye tank and the control end thereof is connected with the control assembly. The application can realize closed-loop control of adding lye in the circulating loop of the inner cooling water based on the pH values before and after dosing and the conductivities before and after dosing, can ensure the accurate amount of lye added when the water quality fluctuates, avoids the problems that the actual controlled pH value does not participate in control, the lye is not accurately added when the water quality fluctuates and the operation and maintenance rely on the experience of workers, and thus realizes precise intelligent automatic control of the pH of the inner cooling water.

This invention discloses an in-situ removal process for total inorganic iodide in water based on oxidation-adsorption, belonging to the field of water treatment technology. The process includes: first, taking raw water containing inorganic iodide, adding bicarbonate and adjusting the pH of the solution to 7-7.5; then, adding ferrous salt to the raw water; finally, adding KMnO4 to the raw water with added ferrous salt under stirring conditions, reacting to prepare a MnO2-nascent iron particle complex; on the one hand, promoting the removal of total inorganic iodide from water through mild oxidation-adsorption. ‑ Oxidation transformation occurs to generate HOI / I2; on the other hand, the in-situ products HOI / I2 are adsorbed and fixed through adsorption / co-precipitation methods, and nascent iron is captured through surface coordination or electrostatic adsorption. This invention achieves the capture of I2 under neutral / weakly alkaline drinking water conditions through a mild and controllable oxidation-adsorption synergistic mechanism. ‑ Simultaneous adsorption and removal of its conversion products are achieved to ensure that total iodine is removed to the required standard.

The invention discloses a double-proportion type high water base proportional valve. A liquid return valve element is arranged at the left end in the double-proportion type high-water-base proportional valve shell in a sliding mode, a valve sleeve is fixedly installed at the right end in the double-proportion type high-water-base proportional valve shell, and a valve seat and a load valve element are arranged in the valve sleeve. The inner cavities of the liquid return valve core, the valve seat and the load valve core are communicated with a load end port A; a liquid inlet runner is formed between the valve seat and the load valve element, a liquid return runner is formed between the liquid return valve element and the inner wall of the shell, an annular control cavity and an annular control protrusion which are in sliding sealing fit with each other are arranged between the load valve element and the valve sleeve, and the annular control cavity is divided into a left control cavity and a right control cavity through the annular control protrusion. The pressure difference between the left control cavity and the right control cavity drives the load valve element to slide, so that the double-proportion type high-water-base proportional valve is switched between the working positions, and the flow is proportionally controlled under the double working positions. The double-proportion type high-water-base proportional valve has good control at the PA working position and the AT working position, the degree of freedom is low, and the proportional effect can be achieved.

The invention belongs to the technical field of water treatment, and particularly relates to an underground water fluorine ion removal method based on a superconducting coupling steel slag adsorption process. Comprising the following steps: S1, drying, grinding and screening steel slag to obtain pretreated steel slag; s2, adding the pretreated steel slag and weak acid into the fluorine-containing underground water, and uniformly stirring and mixing to obtain a mixed liquid; s3, the mixed liquid passes through a superconducting HGMS system, the magnetic induction intensity and the flow speed of the mixed liquid are controlled, and underground water reaching the standard is obtained through superconducting coupling treatment; s4, the superconducting HGMS system is controlled to carry out backwashing, and solid-liquid separation is achieved; cheap and easily available steel slag is used as an adsorbent, an acid solution is added to improve the defluorination efficiency of the steel slag adsorbent, and in the underground water treatment process of the superconducting coupling technology, continuous operation can be achieved, investment is saved, occupied space is small, and the operation process is simple. The industrial waste steel slag can be recycled, and the high-fluorine underground water treatment cost can be reduced.

The utility model relates to a faucet device and a water purifier. The faucet device comprises a faucet, an infrared sensing unit and a control unit. The faucet and the infrared sensing unit are electrically connected with the control unit. The control unit is used for acquiring the height of the container and the height of the liquid level through the infrared sensing unit and controlling the faucet to discharge water or stop discharging water based on the height of the container and the height of the liquid level; the height of the container is the height of the container placed below the faucet, and the height of the liquid level is the height of the solution contained in the container. In the embodiment of the invention, the height of the container and the height of the liquid level are obtained through the infrared sensing unit, and the faucet is controlled to discharge water or stop discharging water based on the height of the container and the height of the liquid level, so that the faucet device is completely separated from manual control, full-automatic water switching is realized, and the problem of overflow is solved. In addition, the faucet device is suitable for various containers.