30results about How to "Reduce copper ion content" patented technology

The invention relates to a method for treating copper-containing waste water, comprising the following steps of: firstly, collecting copper-containing waste water, and regulating the pH value of the copper-containing waste water to be more than or equal to 8 and less than or equal to 10; secondly, adding excessive water soluble sulphide into the copper-containing waste water and stirring to be uniform; thirdly, removing precipitates in the copper-containing waste water; fourthly, regulating the pH value of the copper-containing waste water to be more than or equal to 3 and less than or equal to 4; fifthly, adding hydrogen peroxide and ferrous sulphate into the copper-containing waste water; sixthly, regulating the pH value of the copper-containing waste water to be more than or equal to 8 and less than or equal to 10; and seventhly, removing the precipitates produced in the copper-containing waste water. The method for treating the copper-containing waste water provided by the invention has a good treatment effect.

The invention relates to a polyester enamelled wire enamel removing process. The process includes following steps: 1), adding an enamel removing agent into an alkaline liquid tank, heating enamel film treatment temperature of a polyester enamelled wire, wherein the enamel removing agent is a sodium hydroxide and/or potassium hydroxide inorganic alkaline solution of 10-40% in mass concentration; 2), pumping the enamel removing agent in the alkaline liquid tank into the bottom of an enamel removing bucket with a stirring paddle, and placing the polyester enamelled wire to be subjected to enamel removing into the enamel removing bucket; 3), starting stirring after overflowing, and enabling rotating speed to be 30-300 rpm, wherein a shedding enamel film overflows along with the enamel removing agent from an overflowing tank at the top of the enamel removing bucket and flows into a filtering bucket; 4), separating the shedding enamel film from the enamel removing agent in the filtering bucket, wherein the enamel removing agent continues entering the alkaline liquid tank. The invention further relates to a polyester enamelled wire enamel removing device. The polyester enamelled wire enamel removing process and device is convenient to operate, wide in application range, good in enamel removing effect, free of volatilization, little in metal base material corrosion and capable of realizing mass enamel removing.

The invention relates to the field of battery application and energy recovery and particularly relates to a method for removing copper ions from copper-containing vanadium liquid. The method is used for solving problems in the reutilization, recovery and the like of a copper-containing electrolyte in the prior art. According to the method, a vanadium battery electrolyte which is used for a long time and contains the copper ions is taken as a raw material, an organic-inorganic reducing agent and a decoppering agent are added in a proper proportion within a certain temperature range, and then, the copper ions are removed from the liquid. The method for removing the copper ions from the copper-containing vanadium liquid has the advantages that the process method is simple, the operation is easy, the raw material is easily available, the copper removal ratio is above 85%, and the copper removal effect is remarkable.

The invention provides a Mn-modified Cu-SSZ-13 catalyst as well as a preparation method and application thereof. The preparation method comprises the following steps of (1) carrying out acid leachingon the Cu-SSZ-13 catalyst, and carrying out solid-liquid separation to obtain a pretreated Cu-SSZ-13 catalyst, and (2) carrying out vacuum impregnation on the pretreated Cu-SSZ-13 catalyst obtained inthe step (1) by using a manganese salt solution, and drying to obtain the Mn-modified Cu-SSZ-13 catalyst. The Mn-modified Cu-SSZ-13 catalyst provided by the invention can be used for a low-temperature section SCR reaction, has a relatively large specific surface area and relatively high gas adsorption capacity, realizes high activity and high selectivity of the catalyst in a relatively low temperature interval, and keeps the catalytic activity of a medium-temperature section from being greatly influenced.

This invention relates to processing equipment for cold water removing oxygen or electrolemma micro-alkalifying in power generator and its processing method. It relates to water processing equipment and its processing method. It has solved problems of disqualified cold water quality, hollow copper guide wire corroding in about power generator. Its second osculum of penstock connects with rotormeter inlet by primary flange. There is check valve at space between up and below flange plate of primary flange. 5%-10% inside cold water enters in equipment inlet valve, inlet pressure gauge, check valve, and rotormeter from equipment inlet, flow in deionizer, electrolemma micro-alkalifying equipment or deaerator respectively. This processed inside cold water return to inside cold water tank of power generator through resin catcher, equipment export valve, outlet pressure gauge. This equipment has advantages of simple structure, low cost, lowest electric conductivity of inside cold water, least dissolved oxygen, suitable PH, minimum copper content, utmost to increase power generator insulation, and long cycle of operation.

The invention relates to a membrane purification and alkalization control processing device for generator internal cooling water. A water inlet pipe (20) of the device is connected with a generator internal cooling water bypass (23); a water outlet of the device is directly returned to a generator internal cooling water tank (22); the pressure of inlet water, which enters the device, of the internal cooling water is detected by an onsite pressure gauge (1) which is mounted on an inlet pipeline; after entering the device, the generator internal cooling water enters an ion removing part. The device provided by the invention has advantages that the structure is simple, the cost is low, the conductivity of the internal cooling water is the lowest, a pH (potential of hydrogen) value is moderate, the content of copper ions is the lowest, the insulativity of a generator is furthest improved, and the running period is long. A method provided by the invention has advantages of being simple in technique, being convenient to operate and having a certain degree of automation.

The invention relates to the field of battery application and energy recovery, and in particular relates to a method for cleanly removing copper ions in copper-bearing vanadium solution, solving the defects that the existing copper removal technology is large in energy consumption, has secondary pollution to the solution, is high in process cost, and the like. The method comprises the step: based on copper-bearing vanadium solution as a raw material, introducing enough and clean reducing gas and clean gas having selective precipitation to copper ions to directionally precipitate copper under certain reaction environment. According to the method, no other impurities are introduced, no catalysts are needed, the operation is easy, the raw materials are easily available, the copper removal rate can achieve more than 80%, and the copper removal effect is obvious. The electrochemistry reversibility of treated electrolyte is good, the conductivity is high and the recycling of batteries can be realized.

The invention discloses a composite resin adsorbent for copper pollution in municipal sewage and a preparation method of the adsorbent. The adsorbent comprises the following components, by weight part, 30-40 parts of a modified resin, 10-15 parts of a pseudomonas xiamenensis CGMCC No. 1.6446 biomembrane, 5-8 parts of polymeric phosphate-ferric chloride, 5-8 parts of sodium tripolyphosphate, 2-6 parts of sodium metaaluminate and 0.4-0.8 part of sodium dodecyl sulfate. Through the adsorbent, physicochemical indexes of the composite resin adsorbent for copper pollution in municipal sewage can achieve the GB18918-2002 standard and the contents of COD, BOD, SS and copper ions can be effectively reduced. The adsorbent is simple in processing technology, less in consumption, excellent in processing effect and stable in performance. The adsorbent provides effluent with good quality, enables cost for water treatment to be effectively reduced, and brings great economic benefit and social benefit.

The invention discloses a method for deeply removing copper in a hydrochloric acid leaching solution of cobalt nickel hydroxide. The method mainly comprises the following technological steps: (1) leaching cobalt nickel hydroxide with hydrochloric acid to obtain a hydrochloric acid leaching solution, and adding diluted sulfuric acid to the hydrochloric acid leaching solution to regulate sulfate radical so that the content of the sulfate radical in the solution is 25-35g/L, wherein the solution serves as a precursor extracting solution; (2) adding the cobalt nickel hydroxide raw material to the precursor extracting solution to regulate pH value, wherein the addition of the cobalt nickel hydroxide is controlled until the final pH value of the solution is 4.0-4.5, and then carrying out filter pressing on the precursor extracting solution to obtain solid impurities; and (3) pumping the filter-pressed precursor extracting solution and a saponified P507 extracting agent to an extraction box for conducting countercurrent extraction. The method disclosed by the invention is obvious in copper removal effect; the content of copper ions in the nickel chloride solution is reduced to less than 0.004g/L after copper removal, so as to effectively meet a demand of producing an electroplating-grade nickel chloride product; and in addition, the method disclosed by the invention is simple to operate and easy in industrial production.

The invention relates to a circuit board production wastewater treatment method, which comprises the following steps: reaction treatment; neutralization treatment; precipitation treatment; multi-mediafiltration; activated carbon filtration; and ion exchange purifying. The employed cation exchange resin has excellent kinetic characteristics when treating wastewater, and has high regeneration efficiency, low acid consumption, and large working exchange capacity. The wastewater treatment method adopted by the invention has the advantages of simple process, high use efficiency and large amount oftreated wastewater.

The invention discloses a copper-containing waste water treatment method based on a magnetic adsorption agent. The copper-containing waste water treatment method includes dissolving carboxymethyl celluloses in deionized water, and adding alpha-cyclodextrin and NaOH, and applying a magnetic field for reaction; adding FeCl3.6H2O, FeCl2.4H2O and Fe3O4 into the liquor, and adding liquid paraffin; adding a NaOH solution into the liqour, adding epichlorohydrin, and discarding supernate to obtain gel for standby use; collecting copper-containing waste water; recycling the used industrial copper-containing waste water, and naturally precipitating the used industrial copper-containing waste water to obtain supernate and sediments; adjusting the pH value of the supernate; adding the gel into the supernate, and applying a magnetic field for reaction; adsorbing copper ions in the copper-containing waste water by the gel. The copper-containing waste water treatment method has the advantages that the gel for adsorbing heavy metal is prepared at first, and then put into the copper-containing waste water to adsorb the copper ions in the copper-containing waste water; the treatment method is simpleand convenient to operate, the content of the copper ions in the industrial waste water treated by the treatment method is low, and national waste water discharge standards are met.

The invention discloses a copper-containing waste liquid recovery treatment device and a treatment method thereof. The copper-containing waste liquid recovery treatment device comprises a waste liquid treatment device body, the waste liquid treatment device body comprises a sedimentation tank, a mixed reaction tank and a sedimentation filtering tank, one side of the waste liquid treatment device body is fixedly connected with a liquid inlet pipe, the other side of the waste liquid treatment device body is fixedly connected with a water outlet, and the upper end of the mixed reaction tank is fixedly connected with a copper removal agent box. According to the copper-containing waste liquid recovery treatment device and the treatment method thereof, the copper removal agent box, a mixing and stirring device and the sedimentation filtration tank are arranged, so that copper removal operation can be conveniently and better carried out, calcium hydroxide is added into waste liquid, copper ions are made to generate insoluble hydroxide precipitates, and therefore the content of the copper ions in wastewater is reduced, and the wastewater reaches the emission standard; and the reaction can be fully carried out, the efficiency is higher, the wastewater purification effect is better, the treatment performance is more excellent, and a better use prospect is brought.

The invention discloses polyphenol grape wine, which is prepared by the following method: 70-90 parts of grape distilled liquor and 10-20 parts of health-care liquid are mixed and filtered, the health-care liquid is prepared from radix bupleuri, radix scutellariae, radix paeoniae alba and radix puerariae, and then cinnamic acid, polyvinyl imidazole and N-vinyl pyrrolidone are added for functionalization treatment to prepare the polyphenol grape wine. According to the prepared polyphenol grape wine, the four medicines are combined, the prepared polyphenol grape wine conforms to the principle of traditional Chinese medicine and pharmacology, the nourishing effect is achieved, the effects of smoothing and inducing diuresis, calming the liver, extinguishing fire, clearing heat and lowering blood pressure and lipid are achieved, and the grape wine prepared through the technology can effectively adsorb metal ions, increase the polyphenol concentration, improve the color and taste of the grape wine and is beneficial to human health.

The invention belongs to the technical field of water treatment, relates to a treatment method for recovering magnesium salt from copper-containing wastewater; and aims at solving the problem that existing high-concentration magnesium salt wastewater contains a large number of copper ions and the recycled magnesium salt contains a large amount of miscellaneous salt. According to the method for recovering magnesium salt in copper-containing wastewater, firstly, monovalent copper is converted into bivalent copper through aeration; precipitation is performed with metal complexing agents to generate copper complexes, effluent is subjected to sulfide precipitation and stirred to separate out copper sulfide precipitation, sulfide precipitation effluent flows back to the metal complexing agent precipitation tank to be subjected to secondary precipitation, secondary precipitation effluent is subjected to copper removal through copper removal resin adsorption, finally, the content of copper ions in the effluent is low, magnesium salt with high purity can be obtained through evaporation and recovery, and resin is regenerated through acid water to recover the copper ions.

The wine is prepared from, by weight, 70-90 parts of grape distilled liquor and 10-20 parts of health-care liquid, the health-care liquid is prepared from radix bupleuri, scutellaria baicalensis, radix paeoniae alba and radix puerariae jointly, the four medicines are used together, the health-care wine conforms to the principle of traditional Chinese medicine and pharmacology, and the wine has the nourishing function of dredging meridians, can calm the liver, calm fire, clear heat and also can reduce blood pressure and blood lipid. The invention also discloses a production process of the health-care wine, and the wine prepared by the process can effectively reduce excessive metal ions, can retain the biological activity of functional components, and is beneficial to human health.

The invention provides a printed circuit board copper-containing wastewater treatment process which comprises the following steps: S1, collecting printed circuit board copper-containing wastewater in a waste liquid pool, adding a NaClO solution into the wastewater, and adjusting the pH value of the waste liquid to 4.0-6.0; S2, introducing the wastewater treated in the step S1 into an irradiation tank, and irradiating the wastewater by using ultraviolet light; S3, introducing the wastewater treated in S2 into a complex breaking tank, adding a Fenton reagent into the complex breaking tank, and conducting stirring; S4, introducing the wastewater treated in S3 into a sedimentation tank, and simultaneously adding NaOH and Na2S with the weight ratio of 5:4 into the sedimentation tank; S5, introducing the wastewater treated in S4 into a coagulating basin, and adding PAC into the coagulating basin; S6, introducing the wastewater treated in the step S5 into a flocculation basin, and adding PAM into the flocculation basin; and S7, carrying out advection precipitation to obtain treated wastewater. The copper ions in the copper-containing wastewater in the production of the printed circuit board can be effectively removed.