422 results about "Impurity ions" patented technology

The invention aims to provide a method and a device for determining the peak area of chloride ions based on ion chromatography. The method for determining the peak area of chloride ions based on ion chromatography comprises the following steps: step 1, identifying a chromatographic peak: peak separation, peak qualitation, baseline correction, peak trailing treatment and peak overlapping treatment; and step 2, calculating the chromatographic peak area: peak definition, integration algorithm, calibration curve application, repeatability verification, impurity peak deduction and main peak area calculation. According to the method, a chromatographic peak identification and chromatographic peak area calculation mode is designed, so that the technical problem that other impurity ions may be introduced to influence chloride ion chromatographic peak identification and accurate area calculation in an existing mode of determining organic chlorine through ion chromatography is solved.

The invention relates to a super junction power device and a preparation method thereof. The preparation method comprises the following steps: providing a silicon carbide substrate; a silicon carbide epitaxial layer is formed on the top surface of the silicon carbide substrate, the silicon carbide epitaxial layer has first type impurity ions, a plurality of doped columns are formed in the silicon carbide epitaxial layer, the doped columns have second type impurity ions, and the doped columns are formed through an etching process and an epitaxial process or through a multi-step epitaxial process and a multi-step ion implantation process; forming a body region in the surface, far away from the silicon carbide substrate, of the silicon carbide epitaxial layer, wherein the body region has second type impurity ions; forming a source region between the doped columns, wherein the source region is provided with a first type of foreign ions; forming a first groove penetrating through the source region and the body region between the adjacent doped columns, and forming a second groove penetrating through the body region above the doped columns; forming a gate structure in the first groove; and forming a source trench structure in the second trench. The on resistance of the super junction power device is reduced, and the voltage withstanding characteristic of the super junction power device is improved.

The invention relates to a solar cell and a preparation method thereof. According to the preparation method of the solar cell, the amorphous silicon layer is formed on the back tunneling oxide layer, the doped polycrystalline silicon layer is formed in the first process through diffusion doping treatment, and the doped silicon oxide layer is formed on the doped polycrystalline silicon layer in the second process. And after the doped silicon oxide layer is formed, selective heavy doping of the back surface is realized by adopting a laser doping process, and a selective emitter is formed in a heavy doping region. On one hand, the doped silicon oxide layer can provide sufficient impurity ions for SE doping, and on the other hand, the doped silicon oxide layer can protect the tunneling oxide layer and reduce or prevent the tunneling oxide layer from being damaged in the SE laser doping process, so that a good passivation effect can be achieved.

The invention relates to the technical field of aluminum ash washing filtrate recycling intelligent control, in particular to an aluminum ash washing filtrate recycling intelligent control device and method, and the device comprises a multi-parameter online detection module, a data processing optimization module, a process parameter execution module and a filtrate circulation module. The multi-parameter online detection module is used for cooperatively detecting the real-time concentration of trace impurity ions such as fluorine, potassium and sodium through an ion selective electrode array and a micro spectrum analyzer; predicting the dissolution trend of impurity ions through an LSTM model and generating a process parameter adjustment instruction; the process parameter execution module regulates and controls the stirring strength, the liquid-solid ratio and the water-ash contact time in a linkage manner; and the filtrate circulating module is used for buffering, homogenizing and proportionally mixing the washed liquid phase to generate a regenerated leaching medium for recycling. According to the method, the detection data and the model decision are dynamically matched through the closed-loop control process, and the impurity element removal efficiency is improved.

The invention provides a method for synergistically recovering all elements of crystal silicon cells of a decommissioned photovoltaic module, which comprises the following steps of: collecting large-particle waste crystal silicon cells and grinding the large-particle waste crystal silicon cells to obtain powder; the powder is leached with nitric acid, and leach liquor and impurity-removed silicon powder are obtained; leaching the silicon powder subjected to impurity removal by using an HF solution to remove a silicon nitride layer, and filtering, washing and drying to obtain the silicon powder meeting the industrial standard; the leaching solution is subjected to chlorination precipitation to obtain silver chloride and a leaching solution with silver removed, and after the silver chloride is filtered, the silver chloride is subjected to acid pickling and water washing to obtain silver chloride; sodium sulfide is added into the leaching solution after silver removal, metal in the leaching solution is precipitated, and a solution containing Al < 3 + > can be obtained after filtering; the method comprises the following steps: adding an alkaline substance into a solution containing Al < 3 + >, filtering to obtain an aluminum hydroxide precipitate, and washing the aluminum hydroxide precipitate to remove foreign ions adsorbed on the surface; one technical effect of the invention is that collaborative recovery and treatment of each element in the waste crystal silicon battery piece are realized.

The invention provides a method for detecting the concentration of phosphite ions in a natural water medium, which comprises the following steps: detecting a to-be-detected sample solution containing phosphite ions and impurity ions by using an ion chromatograph to obtain a chromatogram of the to-be-detected sample; determining a peak area value of phosphite ions from the chromatogram of the sample to be detected; obtaining the concentration of the phosphite ions in the sample to be detected according to a linear regression equation of the peak area value of the phosphite ions and the concentration of the phosphite ions; wherein the test conditions of the ion chromatograph are as follows: an anion exchange column is selected as a chromatographic column, and the column temperature is 43-56 DEG C; the leacheate is a potassium hydroxide solution, the flow rate is 1.0-2.0 mL / min, gradient leaching is adopted, and the concentration of the leacheate is 15-18 mM within the time period of 0-14 min; the concentration of the leacheate is 33-36 mM within the time period of 16-30 min; the concentration of the leacheate is 17 to 20 mM within the time period of 32 to 36 minutes.

This invention discloses an iron-chromium redox flow battery system and a capacity recovery method including a rebalancing device, belonging to the field of flow battery technology. It includes an iron-chromium redox flow battery module, a rebalancing device, and an electrolyte readjustment module. The rebalancing device is used to electrolyze and reduce the ferric ions in the positive electrode electrolyte of the iron-chromium redox flow battery module to ferrous ions. The electrolyte readjustment module is used to correct the concentration of the reduced positive electrode electrolyte in the rebalancing device. The rebalancing device of this invention uses water electrolysis to reduce the Fe in the positive electrode electrolyte of the iron-chromium redox flow battery. 3+ Reduced to Fe 2+ This avoids the emission of electrolysis byproducts and cross-contamination of impurity ions across the membrane, making the entire rebalancing process clean and simple to operate. The electrolyte readjustment module optimizes the concentration and volume of the electrolyte after activity recovery, making it closer to the initial electrolyte composition and avoiding the problem of deteriorated flow battery performance caused by differences in electrolyte volume and concentration after capacity recovery.

The invention relates to a method for extracting bromine from a bromine-containing water sample through electrooxidation, in particular to a method for extracting bromine from brine containing various impurity ions, especially high-concentration Cl <-> ions and low-concentration Br <-> ions, which is mainly used for reducing the interference of the Cl <-> ions and improving the recovery rate of the Br <-> ions by selecting a proper oxidation potential. The process is used for optimally selecting the oxidation potential of bromine ions so as to achieve high-recovery-rate bromine extraction, and comprises the following steps: 1) adjusting the pH value of a bromine-containing water sample to be acidic; 2) carrying out electrochemical oxidation on the bromine-containing water sample subjected to acid adjustment to convert bromine ions into bromine gas; and 3) blowing the generated bromine gas to the absorption device through the aeration device. The hydrogen bromide solution is introduced to adjust the pH of the absorption product solution to be acidic, so that bromate is converted into bromide, and finally, a high-quality sodium bromide product can be obtained.

The invention relates to a high-adaptability fused salt heat storage system in-situ monitoring method, which is characterized in that current and potential signals correspond to the concentration of impurity ions in fused salt through an electrochemical analysis method, and the current value of a characteristic peak corresponds to the concentration of impurities in the fused salt, so that sampling and chemical analysis are not needed; according to the method, the real-time concentration of the impurities can be obtained only by acquiring the characteristic peak current value through electrochemical scanning, the fused salt component analysis process is greatly simplified, the real-time monitoring of the ion concentration through the square wave voltammetry is an automatic and continuous process, and compared with a traditional analysis method, the method has the advantages of being high in sensitivity and analysis speed and suitable for popularization and application. And analyzable response can be generated to tiny concentration change. According to the invention, in-situ and continuous measurement of the concentration of the marker impurities in the molten salt can be realized, and timely and accurate feedback can be provided for changes of components and heat storage performance of the molten salt.

The invention provides a method for preparing a vanadium electrolyte by using aluminum oxide seed precipitation mother liquor crystallization vanadium slag, which comprises the following steps: carrying out reduction acid leaching on Bayer process seed precipitation mother liquor crystallization vanadium slag, converting V (V) and As (V) into V (IV) and As (III), adding an arsenic removal precipitator for arsenic removal, and further hydrolyzing to obtain VO (OH) 2; vO (OH) 2 is converted into a pentavalent vanadate solution through oxidation alkaline leaching, impurity ions such as arsenic, phosphorus, aluminum and silicon are further removed through multiple times of crystallization, and high-purity vanadate is obtained; and finally, high-purity vanadate is converted into a V (IV) solution through reduction acid leaching, an arsenic removal precipitator is added again, deep arsenic removal is achieved, VO (OH) 2 is obtained through hydrolysis, and VOSO4 electrolyte is prepared through sulfuric acid dissolution.

The invention relates to a high-stability electrode for electrochemical lithium extraction and a preparation method thereof, belongs to the technical field of lithium resource extraction, and is used for solving at least one of the problems of poor cycling stability, low current density, low current efficiency and the like of an electrode prepared by an existing method. According to the electrode, the surface of the active material is coated with the solid electrolyte, the coating layer can effectively avoid direct contact between brine and the active material, side reaction is prevented, and therefore the cycle stability of the electrode is improved. The solid electrolyte layer has the effect of transmitting lithium ions, so that foreign ions can be intercepted, and the selectivity of the electrode to the lithium ions is improved. The active material is also coated with an organic conductive polymer, the electronic conductivity of the active material can be effectively improved by the organic conductive polymer layer, the charge transfer impedance of the active material is reduced, and high-current-density lithium extraction is realized.

A preparation method for an implant with a bionic anti-wear texture. The preparation method comprises the following steps: placing on a mobile platform of a femtosecond pulse laser processing system a titanium alloy to be processed, and performing femtosecond pulse laser processing according to a preset bionic texture diagram, so as to obtain an implant with a bionic anti-wear texture. In the preparation method, femtosecond pulse laser light is used to process textured patterns on the surface of a medical titanium alloy, so as to form a bionic texture, such that contamination from impurity ions can be reduced, and splashing and the generation of molten particles are reduced, thereby greatly improving the processing quality of a textured surface; moreover, an undulating bionic texture is designed on the surface of a material on the basis of bionic technology, such that the generation of particles during wearing can be reduced, and wearing particles are captured, thereby improving the stability of the titanium alloy during wearing, and thus reducing the extent of wearing on the surface of the material; and neither a secondary surface treatment after texturing nor other modification techniques are required, thereby improving the wear resistance of an implant.

The invention discloses a method for extracting tantalum and niobium by roasting and melting tantalum and niobium concentrate through villiaumite after multiple times of acid leaching, which comprises the following steps: fully grinding the tantalum and niobium concentrate through a grinding machine, sieving, and fully mixing with concentrated acid according to a certain mass ratio for first acid leaching; filtering the mixed solution, and washing with pure water; mixing the filter residues with concentrated acid according to a certain mass ratio, carrying out secondary acid leaching, filtering, and washing the filter residues with pure water; drying the filter residue, and fully mixing with villiaumite according to a certain mass ratio; fully grinding the mixed solid roasting material by using a grinding machine; roasting and melting the materials; and leaching the roasted material with water or dilute acid, filtering after leaching is completed, and collecting filtrate. According to the method, most impurity ions can be effectively removed through secondary acid leaching impurity removal in the leaching process. And the fluorine salt roasting cost is low, the tantalum-niobium leaching effect is good, the tantalum-niobium leaching rate can reach 90% or above, and the comprehensive utilization rate of resources is high.

The invention provides an alkali metal group ion selective permeable membrane, a preparation method and a lithium, rubidium and cesium extraction method and system, and the membrane is prepared by taking polyphenylene sulfide, Zr (HPO4) 2 and a high-molecular polymer adhesive as raw materials through mixing, fibration treatment and compression molding processes. Based on the weak dipole adsorption characteristic between the sulfur position of high-crystallization polyphenylene sulfide and alkali metal cations, efficient screening of monovalent alkali metal ions (Li < + >, Rb < + > and Cs < + >) and multivalent impurity ions (Mg < 2 + >, Al < 3 + > and Fe < 2 + >) is achieved, and the method can be used for extracting rubidium and cesium. The ion selective permeable membrane has excellent mechanical properties, high separation efficiency and corrosion resistance, and is low in production cost; and finally, the multiple targets of lepidolite leaching liquid impurity removal and lithium rubidium cesium synergistic extraction are achieved.

The invention provides a resourceful treatment method for a solution containing copper, manganese and zinc. The resourceful treatment method comprises a process of replacing copper with manganese, a process of extracting zinc and a process of extracting manganese. In the resourceful treatment method, the manganese powder is used for replacing copper in the solution containing copper, manganese and zinc, effective separation of copper, manganese and zinc can be achieved, the copper content in the product replacement liquid is reduced, and meanwhile introduction of impurity ions is avoided. Besides, the extraction process is adopted to separate zinc and manganese, the separation efficiency is high, the zinc and manganese containing solution obtained through extraction is high in purity and low in impurity content and can be directly used as a raw material of the downstream industry, waste water generated in the extraction process is easy to treat and can be reused after being treated, and therefore cost can be saved, and pollution to the environment can be reduced.

The invention discloses an aqueous zinc ion battery diaphragm as well as a preparation method and application thereof. The battery diaphragm comprises a base material and a Nus-6 layer arranged on the surface of the base material. According to the invention, the Nus-6 layer is used for carrying out coating modification on the diaphragm, and the modified diaphragm can selectively allow zinc ions to pass through and block some impurity ions or solvent molecules which may cause side reactions, so that the occurrence of the side reactions is reduced. The porous structure of the Nus-6 layer can provide an additional channel for ion transmission. Meanwhile, Nus-6 is relatively stable at high temperature and in a water system environment, and can be applied to a water system zinc ion battery.

The invention relates to the technical field of sensors, and mainly relates to a narrow hysteresis width thin film material and a preparation method and application thereof. By doping the vanadium dioxide film and introducing magnetic rare earth elements gadolinium (Gd) and titanium (Ti), the rare earth elements as impurity ions can effectively replace or destroy V4 +-V4 + covalent bonds of vanadium ions, so that defects in the film are increased to regulate and control the phase change characteristic of the vanadium dioxide film, and the provided film material also has a narrow hysteresis width and can be applied to the field of thin film materials. And the wide application breakthrough of zero hysteresis width can be realized, and meanwhile, the material also has excellent reversible phase change and cycling stability and ultra-sensitive temperature response and rapid switching characteristics, and can provide powerful support for the development of the sensor field.

The invention provides a manufacturing method of a semiconductor structure, which comprises the following steps of: growing a first semiconductor layer on a substrate, etching a groove in one side, far away from the substrate, of the first semiconductor layer, partially penetrating through the first semiconductor layer, growing a sacrificial layer on the first semiconductor layer, etching the sacrificial layer, and repeating the growth and the etching of the sacrificial layer for multiple times, and carrying out secondary epitaxy on a third semiconductor layer in the groove until the ion concentration of the surface of the first semiconductor layer exposed by the groove is lower than a preset value. Through the method of etching the sacrificial layer after growing the sacrificial layer for multiple times, on one hand, the ion concentration of the first conduction type on the surface of the first semiconductor layer exposed by the groove can be reduced, so that the third semiconductor layer of the second conduction type can be grown in the groove, and the lattice quality of the third semiconductor layer is improved; on the other hand, the impurity ion concentration in the growth cavity of the third semiconductor layer can be reduced, the quality of the third semiconductor layer is further improved, and the reliability of the semiconductor structure is improved.

The invention relates to a resin life prediction method and device, a storage medium and electronic equipment, and relates to the field of nuclear technology, and the method comprises the steps: firstly obtaining the exchange capability data of resin in a purification system and the purification flow of the purification system; measuring the inlet conductivity of the coolant flowing into the resin on line by using a first conductivity measuring instrument, wherein the first conductivity measuring instrument is arranged at the inlet of the coolant flowing into the resin; measuring the outlet conductivity of the coolant outflow resin on line by using a second conductivity measuring instrument, wherein the second conductivity measuring instrument is arranged at the outlet of the coolant outflow resin column; based on the inlet conductivity and the outlet conductivity, the equivalent concentration of impurity ions in the coolant is determined; and finally, predicting the service life of the resin according to the equivalent concentration of the impurity ions, the exchange capacity data of the resin and the purification flow of the purification system. Through the scheme disclosed by the invention, online prediction of the service life of the resin can be realized, and the time hysteresis of prediction of the service life of the resin is effectively reduced.

The invention provides spherical cobaltosic oxide as well as a preparation method and application thereof, the preparation method comprises the following steps: (1) injecting a cobalt salt-containing solution and a carbonate solution into a base solution in a parallel flow manner for a coprecipitation reaction to obtain a mixed-phase precursor; and (2) calcining the mixed phase precursor to obtain the spherical cobaltosic oxide, wherein the solute of the base solution in the step (1) is alkali metal hydroxide. According to the method disclosed by the invention, the precursor of the hydroxyl cobalt oxide and cobalt carbonate mixed phase can be prepared without separating kettles, the content of foreign ions in the precursor is low, and small-particle and high-purity cobaltosic oxide can be prepared by directly sintering.

The invention belongs to the technical field of chemical water treatment corrosion prevention, and particularly relates to a corrosion prevention treatment method for a nuclear power plant equipment cooling water system metal material. The pH value is controlled to be 9.0-10.5 by adopting a method of slowly releasing lithium when a lithium type and oxyhydrogen type mixed resin purification bed runs, and impurities are removed by virtue of the resin purification bed so as to control chlorine, fluorine and sulfate radical impurity ions to be less than 50mu g / kg; the dissolved oxygen is controlled to be less than 50mu g / kg by adopting a method of nitrogen coverage at the upper part of the high-level water tank and slow oxidation and oxygen consumption of a metal material in an operation process. The problems existing in the aspect of system medium water discharge treatment are eliminated or simplified, meanwhile, the problems of unqualified water quality and corrosion caused by the fact that a high-concentration corrosion inhibitor leaks into other systems in current corrosion inhibition treatment are solved, and the microbial corrosion risk during corrosion inhibitor treatment is reduced.

The invention provides a method for removing metal impurity ions in a carbonylation synthesis acetic acid catalyst solution and filtering equipment thereof, and belongs to the technical field of metal impurity ion removal in the carbonylation synthesis acetic acid catalyst solution. Comprising the following steps: S1, carrying out preliminary adsorption on heavy metal ion impurities through strong-acid ion exchange resin, S2, carrying out circulating filtration adsorption through a filter assembly, and guiding the adsorbed carbonylation synthesis acetic acid catalyst solution into a cooling chamber, S3, pouring clear water into a processing barrel, and carrying out treatment for 2-3 hours. And the cleaned water-liquid mixture is subjected to centralized adsorption treatment through the magnetic adsorption rod. By arranging the cleaning assembly, the cleaning effect on the inner face and the outer face of the metal filter plate is achieved, the filter assembly does not need to be detached and cleaned independently, the cleaning effect on residual heavy metal ion impurities is further improved, and meanwhile the cleaning efficiency of the filter assembly is improved.

Generation of impurity ions is prevented or reduced in a carbon ion generating device in which a laser-driven ion acceleration system is employed. A carbon ion generating device generates a carbonized region by irradiating a film made of an organic compound with a first laser beam, and generates carbon ions by irradiating at least a part of the carbonized region with a second laser beam.

The invention is suitable for the application field of electrolyte acidity determination, and provides a method for determining the acidity of an all-vanadium electrolyte based on a complexing mass difference method, and the method comprises the following steps: taking the all-vanadium electrolyte, and diluting the all-vanadium electrolyte into a pretreated all-vanadium electrolyte with the concentration of 0.05-0.1 mol / L; adding 1.5-2mL of a complexing masking reagent with the molar concentration of 1.5-2mol / L, weighing, and recording as M1; stirring and titrating, weighing and recording as M2; a quantitative determination method of mass difference is used for calculation, and the formula is {(M2-M1)-0.05} / A * C. In conclusion, a mass difference quantitative determination method is adopted, the vanadium complexing masking reagent is added, the adding amount and the pH value of the vanadium complexing masking reagent are controlled, a stable complex is formed through the complexing masking reagent, vanadium ions and impurity ions, the oxidation-reduction reaction and the precipitation reaction of the complex and sodium hydroxide are inhibited, and the accuracy of the acidity value of the all-vanadium electrolyte is improved.

The invention discloses a method for preparing a vanadium electrolyte by extracting a sodium salt roasting vanadium extraction leaching solution, and belongs to the technical field of vanadium electrolytes. In order to improve the impurity separation depth and the product purity of the vanadium electrolyte, the invention provides a method for preparing the vanadium electrolyte by extracting a sodium salt roasting vanadium extraction leaching solution, which comprises the following steps: removing silicon from the leaching solution, selectively reducing and acidifying, extracting anions, washing, reducing and reversely extracting, degassing and deoiling, and electrolyzing to obtain the 3.5-valent vanadium electrolyte. According to the method, the sodium-modified vanadium-containing leaching solution is used as a raw material, anions in the solution are completely converted into cations in a mode of combining pretreatment deep silicon removal with selective reduction acidification, vanadium is in an anion form, all impurity ions in the solution are efficiently separated through anion extraction-reduction reverse extraction, and the purity of the vanadium-containing leaching solution is improved. The prepared vanadium electrolyte product is extremely low in impurity ion content, the vanadium yield is remarkably improved, and the preparation cost of the high-purity vanadium electrolyte is greatly reduced.

The invention provides an electrolysis method for a solution containing rare earth ions, and relates to the technical field of hydrometallurgy, the electrolysis method comprises the following steps: taking the solution containing rare earth ions as a catholyte, carrying out electrolysis to increase the pH value of the catholyte, obtaining a turbid solution in a cathode chamber, carrying out solid-liquid separation to obtain a solid-phase substance which is a precipitate rich in rare earth or a precipitate rich in impurities, according to the method, the solid-phase substance is separated from the rare earth, so that selective separation and enrichment are realized, that is, when the solid-phase substance is a precipitate containing rare earth, the purpose of preparing a high-grade rare earth enriched substance can be achieved through electrolysis, and when the solid-phase substance is a precipitate containing impurity ions, the purpose of separating the impurity ions can be achieved through electrolysis; according to the electrolysis method, chemical reagents do not need to be added, new ions are not introduced, salt-containing wastewater is not generated, operation is easy, and the process is clean and free of pollution.

The invention discloses a method for measuring the content of ferric ions in an iron-chromium flow battery electrolyte, which comprises the following steps: before the content of the ferric ions is measured, pretreating the electrolyte to be measured to remove the influence of Cr ions and other impurity ions in the electrolyte on an experimental result, and then titrating with a sodium thiosulfate standard solution; the method has the advantages that the method is suitable for directly measuring the content of the ferric ions under the coexistence condition of a large amount of ferrous ions, the problems that in the prior art, when a large amount of ferrous ions and a trace amount of ferric ions coexist, the error is large, and the accuracy is low are solved, and a technical guarantee is provided for capacity recovery and efficiency improvement of the electrolyte of the flow battery.

The invention relates to the technical field of MOS (Metal Oxide Semiconductor), and discloses a SiC MOSFET (Metal Oxide Semiconductor Field Effect Transistor) device for improving single-particle radiation recombination efficiency, which comprises a drain electrode, a semiconductor epitaxial layer, a metal source electrode and a grid electrode, and is characterized in that an isolation medium is deposited on the outer surface of the grid electrode; the semiconductor epitaxial layer comprises a substrate layer, an epitaxial layer, a P well layer and a heavily doped N well layer; the P well layer comprises a lightly doped P well layer and a heavily doped P well layer; p-type doped regions are formed between the adjacent lightly doped P well layers through ion implantation, and N-type impurity ions are injected into the P-type doped regions to form N-type polycrystalline silicon. According to the invention, the P-type doped region is formed by injecting P-type impurities in the SiC MOSFET device, the N-type polycrystalline silicon is formed by ion injection in the P-type doped region, and the N-type polycrystalline silicon is in short circuit with the source metal, so that the trench structure transfers a strong electric field at a gate oxide interface to the bottom of the JFET region, the electric field intensity in the thin gate oxide is greatly reduced, and the single-particle gate penetration resistance of the SiC MOSFET device is improved.

The invention discloses a qualitative analysis method for monitoring impurity ion sources in a water electrolysis system, which belongs to the technical field of water electrolysis system monitoring, and comprises the following steps: sampling electrolyte in the water electrolysis system, detecting the type and concentration of impurity ions in the electrolyte, continuously sampling for multiple times, and determining the concentration of the impurity ions in the electrolyte; the relative standard deviation of the impurity ion concentration in multiple sampling is calculated, when the relative standard deviation is smaller than a set value, the controller analyzes whether the measured concentration of each type of impurity ions exceeds a set corresponding normal concentration range or not, and otherwise, the detection equipment is calibrated and measured again; the source of the foreign ions is judged according to the types of the exceeded foreign ions, a corresponding fault signal is output, and an alarm or an alarm shutdown instruction is executed; if not, a normal signal of the system is output, and the method can accurately judge the specific source of the impurity ions, so that the specific fault or failure part is positioned, the troubleshooting time is saved, the maintenance is convenient, and the potential safety hazard in the production process is reduced.

The invention relates to the field of electrodeposited nickel anolyte treatment, and discloses a method and a device for treating electrodeposited nickel anolyte. The method comprises the following steps: mixing a calcium-containing neutralizer I with an electrodeposited nickel anolyte A for deacidification treatment to obtain deacidified slurry; carrying out first solid-liquid separation treatment on the deacidified slurry to obtain a nickel-containing solution and calcium sulfate residues; a calcium-containing neutralizer II and the nickel-containing solution are mixed for desilicication and lead removal treatment, and desilicication and lead removal slurry is obtained; carrying out second solid-liquid separation treatment on the desiliconized and lead-removed slurry to obtain desiliconized and lead-removed slag and nickel-containing impurity-removed pre-liquid with the silicon content of less than or equal to 50mg / L; and carrying out impurity removal treatment on the nickel-containing impurity removal pre-liquid to obtain a nickel-rich impurity removal post-liquid with the calcium content of less than or equal to 50mg / L. According to the method provided by the invention, the production cost can be reduced, and wastewater is not produced; according to the method, calcium introduced by calcium salt and impurity ions cyclically enriched in the anolyte can be removed together, and produced waste residues are used as building materials or neutralizers, so that the method is environment-friendly.