59results about How to "Guaranteed regeneration effect" patented technology

The invention relates to a method for flexibly adjusting catalytic cracking reaction-regeneration system heat balance. A conventional regenerated catalyst heat remover which is arranged beside a regenerator and a regenerated catalyst cooler which is arranged on a regenerated catalyst conveying pipe are coupled and linked so that the catalyst bed temperature in the regenerator is controlled in oneaspect to solve the problem of catalyst inactivation because of overhigh temperature caused by great scorching amount in a traditional heavy oil catalytic cracking device and too much heat in the regenerator, and the carried heat and the temperature of the regenerated catalyst entering a lifting pipe reactor are adjusted in the other aspect to adjust ratios of different catalyst and oil needed for raw materials with different properties in cracking reactions. The invention takes heat and adjusts the temperatures of high-temperature regenerated catalysts in different positions in a traditionalheavy oil catalytic cracking device and flexibly adjusts the reaction-regeneration system heat balance so as to optimize heavy oil catalytic cracking process conditions and remarkably improve the yield of light oil and liquid.

The invention discloses a denitration catalyst regeneration solution and a preparation method thereof as well as a catalyst regeneration method. The denitration catalyst regeneration solution comprises the following raw material ingredients in parts by weight: 4-6 parts of vanadyl oxalate, 0.08-0.10 part of cerium nitrate, 0.11-0.13 part of lanthanum nitrate, 0.05-0.07 part of copper nitrate, 0.4-0.6 part of silica sol ST-O and 95 parts of deionized water. The catalyst regeneration method comprises the following steps of firstly, evenly mixing vanadyl oxalate and the deionized water; then, feeding cerium nitrate, lanthanum nitrate and copper nitrate into mixed solution, and fully stirring until the mixture is completely dissolved; finally, feeding silica sol ST-O, and continuing to stir until homogeneous phase is obtained; and sequentially carrying out strong scavenging and ultrasonic cleaning on an inactivated denitration catalyst module, soaking the module in cleaning solution for 18-25 minutes, continuing soaking the module in the regeneration solution for 25-40 minutes, taking out the denitration catalyst module and drying. After the denitration catalyst regeneration solution and the catalyst regeneration method are adopted, the activity of the inactivated denitration catalyst can be efficiently recovered, and the temperature range of the catalyst activity is widened.

The invention provides a hot mix asphalt recycling agent as well as a preparation method and application thereof. The hot mix asphalt recycling agent comprises the following components in weight ratio: 65.0-85.0 parts of heavy oil, 10.0-30.0 parts of polymers, 1.0-1.5 parts of penetrant, 1.0-2.0 parts of anti-aging agent and 1.5-3.0 parts of anti-rut agent. The hot mix asphalt recycling agent contains the heavy oil with relatively high aroma component content, so that the compatibility between the hot mix asphalt recycling agent and waste and aged asphalt can be enhanced, and furthermore, the recycling effect of the hot mix asphalt recycling agent is ensured; due to the addition of the penetrant of the hot mix asphalt recycling agent, the mixing speed of the hot mix asphalt recycling agent and the aged asphalt is increased, the hot mix asphalt recycling agent and the aged asphalt can be sufficiently mixed within a short time, and the comprehensive recovery of the performance of the aged asphalt is promoted.

The invention discloses a process method and a device for regenerating circular wash oil during rich oil debenzolization of gas purification, which belong to the technical field of the gas purification. According to the process, regenerated wash oil is heated to be partially vaporized and enters the bottom of a distillation section of a debenzolization tower together with superheated steam, so that unvaporized residues are separated in a regeneration section of the debenzolization tower. The process is characterized in that: the regenerated wash oil discharged from the bottom of the regeneration section of the debenzolization tower is partially vaporized and regenerated in a heat exchange tube which is filled with water vapor in a heat exchanger outside a regenerator by using the heat of a crude benzene distillation tube furnace, wherein the partial vaporization of the regenerated wash oil usually can be performed in a convection section of the crude benzene distillation tube furnace.By the process, the temperature of the superheated steam of the tube furnace can be effectively reduced, the steam quantity, wash oil consumption and wastewater treatment volume can be reduced, and conditions that the residues are difficult to discharge, the regenerator cokes, and the like can be prevented. The process has the characteristics of small investment, a small amount of occupied land, energy saving, environmental friendliness, low operation cost and the like.

The invention relates to the technical field of power station water supply, and concretely relates to a power station boiler make-up water system mixed bed regeneration method. The mixed bed regeneration method comprises the following steps: 1)backwashing and layering; 2)standing; 3)pre-injecting soda acid; 4) feeding acid or alkali; 5) replacing cathode and anode; 6)performing front washing on anion resin, 7)washing in series; 8) discharging water; 9)mixing resins; 10)rapidly settling; 11)filling with water; and 12)performing front washing, opening a front washing intake gate, a front exhaust gate and a self-use salt removal pump. The mixed bed regenerating method has the beneficial effects that the step of water discharging is cancelled; the step of water discharging is changed to regeneration with a full filling method, after steps of feeding acid or alkali and replacing cathode and anode, the step of performing front washing on anion resin is added for ensuring the regeneration effect; the step of rapidly settling is added after the step of mixing resins, so that re-separation of the mixing resins can be avoided. The method employs new regeneration process, once mixing bed enables successful regeneration, and automatic regeneration can be realized.

The invention relates to a decolouring silica gel regenerator and a regeneration method. The silica gel regenerator comprises a vertical heater body for filling silica gel. The upper portion of the heater body is provided with a hot air device for providing hot air. The lower portion of the heater body is equipped with an air-discharge mechanism. Thermal current which is provided by the hot air device and is in the core space of the heater body is discharged out of the heater body through the air-discharge mechanism from top to bottom. The silica gel regeneration method contains the following steps of: filling silica gel into the heater body; heating silica gel by the use of firewood as fuel until thermal current flows from the top of silica gel to the bottom and is discharged out of the bottom of the heater body; stopping heating after the thermal current at the bottom of the heater body contains no steam or oil, cooling, and discharging to obtain the product. The invention can guarantee regeneration and activation effects of silica gel and solves technical problems unsolved by technical personnel in the field for a long time. According to the invention, present silica gel and products of the same kind can be activated and regenerated, and use cost of products is greatly reduced.

The present invention relates to an air filter cartridge (10) for processing compressed-air for a compressed-air processing installation (12), in particular a compressed-air processing installation (12) of a commercial vehicle (14), comprising a drying agent container (16) filled with a drying agent (18) and a coalescence filter (20), wherein a flow passes through the drying agent (18) in an axial extension direction (22) of the drying agent container (16) during the compressed air preparation. According to the invention, the coalescence filter (20) is arranged in the axial extension direction (22) upstream of the drying agent (18) in an inflow surface (24) of the drying agent container (16).

The invention discloses a method for detecting the content of aminoglycoside antibiotics in a solution to be detected. The method disclosed by the invention adopts a kanamycin A aptamer and an AAP probe to specifically recognize other aminoglycoside antibiotics so as to realize detection of multiple substances on a single sensor. FurthermoreMeanwhile, the method disclosed by the invention has no need of an additional signal separation step, signal detection can be directly performed after reaction, and a sensor modified method ensures the stability and reproducibility of quantitative detection. The method disclosed by the invention is simple, obtains stable performance and good optical fiber repeatability are obtained, and the method is suitable for detection of aminoglycoside antibioticsin environmental samples as well as industrialization requirements of biosensors, and has important application values.

An organic waste gas recovery processing device comprises a filter, a cooler, a vacuum pump, an adsorption valve, a desorption valve, an adsorption / desorption tank, an exhaust fan and a PLC control system. A solvent exhaust gas is collected and sent into a wind collecting box of a recovery system, preprocessed by a filter and a cooler, sucked by a high-pressure centrifugal fan, and sent into the adsorption / desorption tank for adsorption, and after adsorption, a tail gas achieving emission requirements is exhausted into the atmosphere through a discharge outlet at the top of the adsorption / desorption tank by the exhaust fan; when the top of the adsorption / desorption tank is to be penetrated after a period of absorption, the system automatically starts the vacuum pump to perform suction anddesorption and enables activated carbon to be regenerated, and adsorption and desorption are automatically finished by the PLC control system which controls the adsorption valve and the desorption valve; then the high-concentration solvent exhaust gas is pumped out by the vacuum pump, passes through a three-stage condensing unit to be processed, and then is molten into a liquid to be recovered bya solvent storage tank. The device can improve the processing effect of the organic waste gas recovery processing device, and reduce the running cost.

The invention discloses a catalytic cracking method. The method comprises the following steps: two descendent tube reactors capable of multipoint feeding are adopted to respectively perform heavy oil catalytic cracking and light hydrocarbon catalytic reforming; two reactant streams flow into a precipitator and are respectively subjected to gas-solid separation by different cyclone separators; a mixed regenerative agent is subjected to steam stripping, enters a multipoint-air-intake riser regenerator to be mixed with a regenerated catalyst stream to perform charring regeneration; the generated semi-regenerated catalyst enters a turbulent bed regenerator to be subjected to charring regeneration; the regenerated catalyst returns to the two reactors for cyclic use; and heavy oil reaction oil gas and light hydrocarbon reaction oil gas are respectively fractionated by the respective special fractionating towers. The method can improve the catalytic cracking product distribution, enhance the light oil yield and lower the yield of the cracked gas and coke; the method can be used for producing low-olefin-content catalytic gasoline and high-cetane-number catalytic diesel; and the method enhances the charring efficiency and decelerates the hydrothermal inactivation of the catalyst.

The invention discloses a process for cleaning and regenerating a denitration catalyst. (1) The cleaning solution comprises the following raw material components: dilute acid, an iron salt, a manganese salt, a cerium salt, a lanthanum salt and an emulsifier S-185; (2) the regenerating solution comprises the following raw material components: vanadyl oxalate, ammonium metatungstate, ammonium molybdate, silica sol ST-O and deionized water; and (3) the cleaning and regenerating process comprises the following steps: uniformly stirring the vanadyl oxalate and deionized water, adding the ammonium metatungstate and ammonium molybdate, fully stirring until the materials are completely dissolved, and finally adding the silica sol ST-O, and further stirring until a homogeneous phase is obtained; sequentially performing strong purging on a deactivated denitration catalyst module, soaking in the cleaning solution for 10-25 minutes, soaking the catalyst in the regenerating solution for 20-40 minutes, taking out the catalyst, and roasting. According to the cleaning solution and regenerating solution of the denitration catalyst and the catalyst regeneration method, the activity of the deactivated denitration catalyst can be efficiently restored, and the temperature range of the catalyst activity is widened.

The invention discloses a plate type active coke regenerating device. The plate type active coke regenerating device comprises a window frame and a window sash frame. The window sash frame is locatedon the inner side of the window frame. The window frame is of a square frame structure formed by two first cross borders and two first vertical borders. First corner steel hooks are connected to the joints of the first cross borders and the first vertical borders, first seamless steel profiles are sleeved with the first cross borders and the first vertical borders, first connection pegs are arranged on the side faces of the first corner steel hooks respectively and movably embedded into ports of the first seamless steel profiles respectively, and first pin shafts penetrating through the firstseamless steel profiles and the first connection pegs are arranged on the side faces of the first cross borders and the first vertical borders. The plate type active coke regenerating device is reasonable in structure, convenient to use and good in integrity, the strength and impact resistance of the window frame and the window sash frame are effectively improved, mounting, dismounting and cyclicutilization are convenient, resources are saved, the cost is reduced, and the plate type active coke regenerating device is efficient and practical.

The invention relates to a processing method and a system of rinsing waster water in a printed circuit board. The method carries out the solid-liquid separation of the rinsing waste water, filters the waste water to control the particles in the waste water not to be larger than 30 micron and then filters the waste water to set discharge standard through a SiC porous ceramic filter leaf. The system comprises a solid-liquid separating device, a preliminary filtering unit and a depth-type filtering unit. The preliminary filtering unit uses a filtering net or a high molecular film to be a filtering element; the depth-type filtering unit comprises a multilevel filtering unit that uses the SiC porous ceramic filter leaf as the filtering element. The set level of the filtering unit causes drained water after filtering to meet the set standard. The invention adopts the physical filter and adsorption instead of the chemical reaction, thus having remarkable absorption and filter effect of heavy metal ions without introducing other substances. With low cost, little energy consumption, simple operation, small occupied area and wide application scppe, the invention has the good application outlook and the remarkable social benefits.

The invention provides a back flushing device for a fluidized granulator filter. The back flushing device comprises a compressed air control valve connected with a compressed air generating device, a compressed air pipeline, a rotating indexing motor and a sealing device, wherein the compressed air control valve is connected with a compressed air pipeline; the compressed air pipeline is controlled to rotate by the rotating indexing motor; the sealing device is driven to rotate by the compressed air pipeline; the sealing device is used for blocking the cavity of the filter. A back flushing method comprises the following steps of: (i) locating the sealing device; (ii) filling the compressed air; (iii) releasing the compressed air; and (iv) completing the back flushing of the filter. The rotating indexing motor of the back flushing device provided by the invention is used for driving the compressed air pipeline to rotate; the sealing device is driven to rotate by the compressed air pipeline; a plurality of sealing devices can be arranged, so that the purpose of simultaneously back flushing a plurality of filter cavities can be achieved; the discontinuous circulating back flushing process can be performed, so that the de-dusting effect is achieved.

The invention relates to the technical field of air conditioning, in particular to a dehumidification device and an air conditioner system. The dehumidification device and the air conditioner system aim to solve the problems that in the prior art, rotating wheel dehumidification is poor in regeneration effect, and solution dehumidification causes system complexity are solved. The dehumidificationdevice comprises a dehumidification box and a reduction assembly, wherein a solid adsorption assembly is fixedly arranged in the dehumidification box, the reduction assembly comprises a reduction coilpipe, part of the reduction coil pipe is coiled on the solid adsorption assembly, and a heat exchange medium is allowed to flow through the reduction coil pipe. According to the dehumidification device and the air conditioner system, on the premise of ensuring the regeneration effect of a solid adsorbent, the device structure is simplified, and the system complexity is reduced.

The invention provides a molybdenum removal method of ammonium tungstate feed liquid. The method comprises the steps of a sulfurizing step, wherein a sulfurizing agent is added in the ammonium tungstate feed liquid, and sulfurizing feed liquid is obtained; a stepped adsorption step, wherein the sulfurizing feed liquid is subjected to primary adsorption through WDA918 resin until achieving saturation, primary post-adsorption liquid is obtained and subjected to secondary adsorption through 201*7 resin until achieving saturation, and the molybdenum-removed ammonium tungstate feed liquid is obtained. Two kinds of resin are combined for use, the two kinds of the resin can achieve high adsorption capacity, and the good adsorption effect is achieved.

The invention discloses an oxygen generator capable of randomly recycling unqualified product gas, avoiding emptying, saving the product gas and improving the production efficiency. An adsorption tower A (8), an adsorption tower B (11), a gas storage tank (15) and a silencer are arranged on a base (14) in a case (16); a branch pipe A (7) is communicated with the bottom of the adsorption tower A, a branch pipe B (10) is communicated with the bottom of the adsorption tower B, and the other end of the branch pipe A is mutually butted with the other end of the branch pipe B; a gas inlet pipe (6) is communicated with the butted position of the branch pipe A (7) and the branch pipe B (10); a regeneration gas inlet pipe (1) communicated with a gas outlet pipe A (9) and a gas outlet pipe B (12) is connected with a flow meter (2); the outlet of the flow meter is communicated with a connecting pipe (4) through a regeneration gas pipe (3); the oxygen generator is provided with a return gas pipe (5) connected with an output pipe of the gas storage tank (15); and the other end of the return gas pipe is connected with the regeneration gas pipe (3). The oxygen generator can be used as an industrial or medicinal oxygen generator.

The application discloses a method of recovering methanol from acidic gas in a Rectisol unit. The recovery process aims to the methanol in the acidic gas in the Rectisol unit, wherein wastewater fromthe bottom of a tail gas washing column is employed to wash the acidic gas, thus selectively absorbing methanol under low pressure at normal temperature to recover the methanol. The method not only increases recovery rate of methanol and reduces cost, but also reduces consumption of cooling capacity of the unit and avoids accumulation of impurities, such as hydrocarbons, organo-sulfur and the like.

The invention relates to an opening type capacitor deionization and desalting device. The opening type capacitor deionization and desalting device comprises a container body, wherein the container body is internally provided with a plurality of electrodes in parallel; a water inlet (121) is arranged at one end of the container body and a water outlet (122) is arranged at the other end of the container body; the position of the water inlet (121) is lower than the lowest ends of all the electrodes; the position of the water outlet (122) is higher than the topmost ends of all the electrodes; sewage to be treated enters from the water inlet (121) and penetrates through gaps among the plurality of electrodes, and anions and cations are adsorbed through the plurality of electrodes; finally, thesewage leaves away from the container body through the water outlet (122); finally, the opening type capacitor deionization and desalting device further comprises a cover plate (11); the cover plate (11) covers the container body; the cover plate (11) is provided with an air vent (111). The opening type capacitor deionization and desalting device provided by the invention does not need to be sealed and the requirements on voltage withstanding strength of the device are also greatly reduced, so that a lot of materials and processing cost are reduced and the assembling is more convenient and rapid.

Provided are a regeneration filter element and a novel hole-layout filter element inner barrel for electric oil. Guide grooves are uniformly and axially arranged on the outer surface of the filter element inner barrel, and filter holes are uniformly arranged in the middle of one third of the length of the filter element inner barrel. The regeneration filter element for the electric oil comprises the novel hole-layout filter element inner barrel for the electric oil, a filter element outer barrel arranged outside the filter element inner barrel, adsorbent stuffed in a cavity between the filter element inner barrel and the filter element outer barrel, and a filter material layer between the adsorbent and the filter element inner barrel. By the aid of the regeneration filter element and the novel hole-layout filter element inner barrel for the electric oil, the problems of adsorbent leakage and oil flow interruption due to poor gluing of an upper end and a lower end of the filter element inner barrel are solved.

The invention discloses a denitration catalyst regeneration solution and a preparation method thereof as well as a catalyst regeneration method. The denitration catalyst regeneration solution comprises the following raw material ingredients in parts by weight: 4-6 parts of vanadyl oxalate, 0.08-0.10 part of cerium nitrate, 0.11-0.13 part of lanthanum nitrate, 0.05-0.07 part of copper nitrate, 0.4-0.6 part of silica sol ST-O and 95 parts of deionized water. The catalyst regeneration method comprises the following steps of firstly, evenly mixing vanadyl oxalate and the deionized water; then, feeding cerium nitrate, lanthanum nitrate and copper nitrate into mixed solution, and fully stirring until the mixture is completely dissolved; finally, feeding silica sol ST-O, and continuing to stir until homogeneous phase is obtained; and sequentially carrying out strong scavenging and ultrasonic cleaning on an inactivated denitration catalyst module, soaking the module in cleaning solution for 18-25 minutes, continuing soaking the module in the regeneration solution for 25-40 minutes, taking out the denitration catalyst module and drying. After the denitration catalyst regeneration solution and the catalyst regeneration method are adopted, the activity of the inactivated denitration catalyst can be efficiently recovered, and the temperature range of the catalyst activity is widened.

The invention discloses a composite oxide carrier, a hydrofining catalyst as well as a preparation method and application thereof. The composite oxide carrier comprises TiO2 and Al2O3, wherein the TiO2 is enriched on the surface of the Al2O3 in an island shape and / or a sheet shape. According to the hydrofining catalyst prepared by adopting the composite oxide carrier, the silicon poisoning resistance of the catalyst can be remarkably improved, the stability of the catalyst is improved, and the regeneration performance of the catalyst after a silicon impurity-containing raw material is treated is ensured, so that the operation cycle of a device is prolonged.

The invention discloses a catalyst as well as a preparation method and application thereof. The catalyst comprises a carrier and an active component, wherein the carrier is an alumina-titanium oxide composite oxide, and the active component is Ni2P. The catalyst has relatively good silicon poisoning resistance and stability, and has relatively good regeneration performance after being used for treating raw materials containing silicon impurities, so that the operation cycle of a device can be prolonged by adopting the catalyst provided by the invention.

The invention relates to the technical field of household water purification, and particularly discloses a household water purification device which comprises a single-flow-channel desalination assembly which comprises a first water inlet and a first water outlet; a pipeline system which comprises a first pipeline, a second pipeline, a third pipeline, a first valve assembly, a second valve assembly, a third valve assembly, a fourth valve assembly and a salt storage assembly; wherein when regeneration influence factors of the single-flow-channel desalination assembly meet first preset conditions, water conveyed by the first pipeline is guided into the single-flow-channel desalination assembly for regeneration through the first valve assembly, the second valve assembly, the third valve assembly and the first water outlet, and when the regeneration influence factors of the single-flow-channel desalination assembly meet second preset conditions, saline water is obtained after the water passes through the first valve assembly and the salt storage assembly; the saline water is guided into the single-flow-channel desalination assembly through the second valve assembly, the third valve assembly and the first water outlet for deep regeneration. The regeneration effect of the desalination assembly can be improved.

Provided are a regeneration filter element and a novel hole-layout filter element inner barrel for electric oil. Guide grooves are uniformly and axially arranged on the outer surface of the filter element inner barrel, and filter holes are uniformly arranged in the middle of one third of the length of the filter element inner barrel. The regeneration filter element for the electric oil comprises the novel hole-layout filter element inner barrel for the electric oil, a filter element outer barrel arranged outside the filter element inner barrel, adsorbent stuffed in a cavity between the filter element inner barrel and the filter element outer barrel, and a filter material layer between the adsorbent and the filter element inner barrel. By the aid of the regeneration filter element and the novel hole-layout filter element inner barrel for the electric oil, the problems of adsorbent leakage and oil flow interruption due to poor gluing of an upper end and a lower end of the filter element inner barrel are solved.

The invention relates to a method for flexibly adjusting catalytic cracking reaction-regeneration system heat balance. A conventional regenerated catalyst heat remover which is arranged beside a regenerator and a regenerated catalyst cooler which is arranged on a regenerated catalyst conveying pipe are coupled and linked so that the catalyst bed temperature in the regenerator is controlled in one aspect to solve the problem of catalyst inactivation because of overhigh temperature caused by great scorching amount in a traditional heavy oil catalytic cracking device and too much heat in the regenerator, and the carried heat and the temperature of the regenerated catalyst entering a lifting pipe reactor are adjusted in the other aspect to adjust ratios of different catalyst and oil needed for raw materials with different properties in cracking reactions. The invention takes heat and adjusts the temperatures of high-temperature regenerated catalysts in different positions in a traditional heavy oil catalytic cracking device and flexibly adjusts the reaction-regeneration system heat balance so as to optimize heavy oil catalytic cracking process conditions and remarkably improve the yield of light oil and liquid.

The invention relates to an automatic continuous ion-exchange system and a control method for large-scale extraction production of isoleucine. By the innovation in various aspects of the original process, such as the feeding and discharge mode, the washing mode, the concentration of regenerated hydrochloric acid and introducing of automation equipment, the automatic continuous ion-exchange system is applied successfully. After the method is applied, the beneficial effects are significant. The automatic control system is applied, the number of operation personnel is reduced, the labor intensity is reduced, and labor productivity is increased. Water-using and vapor-using are reduced largely. Environment-friendly and energy-saving work is promoted powerfully, and the site area of the system is reduced.

The invention provides a beauveria bassiana application method for plane farmland crops. The beauveria bassiana application method is suitable for spraying powder in a large-area, small-size and high-density crop planting farmland area, and since a hose can be horizontally spanned above a planting compartment surface after being inflated, beauveria bassiana spore powder can be directly sprayed to most farmland areas by utilizing an existing field road; the conditions that the manual spraying range is small, the mechanical spraying cost is high, bacterial liquid is not prone to covering the whole plant, and allergy is prone to occurring in manual powder spraying at present can be effectively overcome, the using effect of beauveria bassiana is effectively guaranteed, and a beauveria bassiana air sowing material is sprayed out through an air outlet blowing sowing opening in the hose after being fully mixed with high-pressure air in a hard pipe; in the application process, when beauveria bassiana spores are sprayed to the crops, all spaces of the whole growth area of the crops can be completely and uniformly covered, leakage of the area covered by the beauveria bassiana spore powder and concentration of the powder are avoided, the first-time insecticidal effect is guaranteed, and then the reproducibility of the beauveria bassiana is more effectively guaranteed.

The invention provides a combined water treatment method for synchronously removing sulfate, hardness and total dissolved solids. The combined water treatment method comprises the following steps of removing sulfate in water by using special magnetic resin, and carrying out solid-liquid separation to obtain first-grade purified water; adding a hardness removing agent into the first-grade purified water to coagulate, and removing a sediment through contact filtration to obtain second-grade purified water; and carrying out fine filtration on the second-grade purified water, and sterilizing to obtain the product water. The combined water treatment method can be used for synchronously removing sulfate, total hardness and total dissolved solids, has the characteristics of convenience in use, flexibility in operation, wide application range and the like, and has relatively good popularization and application prospects.