56 results about "High concentration" patented technology

A liquid dishwashing detergent composition having improved glassware protection when employed in conjunction with cleaning materials having high concentrations of alkaline materials. The composition contains a soluble organic zinc compound which preferably is zinc gluconate and is particularly suited to fast cycle commercial (I&I) dishwashers.

The invention relates to a technology for extracting zinc, lead and silver step by step by processing zinc-leached residues by a full wet process, and belongs to the technical field of zinc-leached residue recycle. The technology comprises the following steps of: preparing sulfuric acid into an appropriate concentration, and performing two-stage acid leaching in an appropriate liquid-solid ratio and at a high temperature to obtain slurry; filtering and separating the slurry to obtain lead-silver residues and a zinc-containing solution; oxidizing, neutralizing and deironing the zinc-containing solution, and depositing zinc by using sodium sulphide; and eluting the lead-silver residues, blending with caustic lye at an appropriate concentration to obtain slurry at a certain concentration, reacting at a certain temperature and in a certain solid-liquid ratio, and filtering and separating to obtain a filter cake and a filtrate, wherein the filtrate is directly added with sodium sulphide for lead deposition and the filter cake returns to a silver cyaniding leaching process. The technology is short in process, simple in operation, low in cost and mild and loose in reaction conditions; an acid solution and an alkali solution at high concentrations are not required; requirements on equipment are low; the extraction rate of metal is higher than that in the conventional method; no additional waste solid, waste liquid and waste gas are discharged; the recycle of the eluate and the filtrate is realized; and environment pollution is avoided from the source.

The invention discloses a new method for formic acid purifying, which comprises the following steps: the aqueous solution of dilute formic acid with the mass concentration of more than 30 percent and anhydrous calcium chloride are mixed, heated to 80 to 95 DEG C so as to lead the anhydrous calcium chloride to be dissolved, and then formic acid with high concentration is obtained through atmospheric distillation; and the mass ratio of the water in the aqueous solution of calcium chloride anhydrous and the aqueous solution of dilute formic acid is 1: 1.5 to 1.8. The purifying method of formic acid is a process which has the advantages of simple and convenient operation, fastness, low cost and cleanness, thus being suitable for industrial production.

The invention relates to a loop reaction device in a slurry bed, application and a method for producing hydrogen peroxide. The loop reaction device comprises a slurry bed reactor and a solid-liquid separator, wherein the upper part of the slurry bed reactor is communicated with the upper part of the solid-liquid separator, and the bottom of the slurry bed reactor is communicated with the bottom of the solid-liquid separator; and a coaxial inner sleeve is arranged in the slurry bed reactor, an outer sleeve is arranged between the inner sleeve and the outer wall of the slurry bed reactor at the upper part of the slurry bed reactor, a raw material inlet and a fluid distributor are arranged in the inner sleeve and at the bottom, a gas outlet is formed in the top of the slurry bed reactor, a filtration component is arranged in the solid-liquid separator, and a clear liquid outlet is formed in the wall of the solid-liquid separator via the filtration component. According to a hydrogenation method for producing hydrogen peroxide by an anthraquinone method with the adoption of the slurry bed loop reactor, the gas-liquid-solid three-phase separation efficiency is high, the excess local liquid holdup of a catalyst is avoided, the possibility of excessive hydrogenation is reduced, the hydrogenation efficiency is further effectively improved and a hydrogen peroxide product with relatively high concentration can be obtained.

The invention relates to an intelligent pulping machine and a control method thereof. A water level detecting device and a temperature detecting device, which are used for detecting water level and water temperature and feeding back detection results to a control device so as to make the control device select different pulping process procedures, are arranged in a pulp holding container of the pulping machine or on a handpiece or at the bottom of the pulp holding container. The control method of a soymilk grinder comprises the following steps that: the water level detecting device transmits the detected water level data to the control device; the temperature detecting device transmits the detected temperature data to the control device; the control device calculates the received water level data and temperature data to acquire corresponding quantity data, and comparatively analyzes prestored water quantity and temperature data; and the control device controls a crushing device and a heating device to start work and to operate pulping process flow corresponding to actual water level and water temperature. The machine and the method achieve the aims of high concentration, low energy consumption, short time, safety and intelligence.

A driving apparatus for a plasma display panel with a pulse generator to supply an alternating pulse to an electrode, and an energy recovering unit to store charges from a discharge cell when the pulse voltage decreases or to output the stored charges to the discharge cell when the pulse voltage increases. The energy recovering unit has a magnetic switch, coupled with the discharge cell and an energy storage capacitor, with variable inductance to control transient time when the pulse transitions from a first voltage to a second voltage. The transient time is based on LC resonance of the magnetic switch inductance and panel capacitance, and can be reduced to improve resolution of the panel. Insulated gate bipolar transistors can be used with the magnetic switches to reduce power loss during switching and in the on-state, and can sustain high voltages necessary for high concentration Xe discharge gas.

The invention relates to a wastewater split-flow separation and quality-based treatment utilization process method. Wastewater is subjected to split-flow into high-concentration waste liquid and low-concentration clean water; the low-concentration water is simply pretreatmented, and is subjected to reverse osmosis separation into fresh water and concentrated water; the resource utilization of fresh water is realized; the quality-based treatment is performed for utilizing concentrated water, so that the wastewater treatment realizes reduction, harmlessness and recycling. The defects of complexity, long flow process, great consumption, serious secondary pollution and the like of the existing wastewater treatment process are overcome. The process method is suitable for treatment and utilization of various kinds of low-salinity industrial wastewater and municipal domestic sewage.

The invention relates to chlorine dioxide disinfection and smell elimination liquor, which includes chlorine dioxide aqueous solution of chlorine dioxide gas, and is characterized in that a pH regulator is also included to control pH value of the solution and ensure chlorine dioxide reaches a stable state; wherein, chlorine dioxide is dissolved in water in the shape of molecule. The chlorine dioxide disinfection and smell elimination liquor has the advantages that a pure chlorine dioxide disinfectant is provided which is dissolved in water in the shape of molecule; in use, no activator is needed to be added, realizing no need of activation indeed; owing to the dissolving of the dioxide disinfection gaseous molecule in water, effective maintaining concentration reaches over one year; applied concentration is low; security is good, without the danger of instability of ordinarily stable chlorine dioxide after activated and the generation of high concentration gas; the chlorine dioxide disinfection and smell elimination liquor can directly act on human skin; food level active agent is appended; demulsification and deoilness properties are added.

The invention discloses a magnetic bioreaction separation device for treating organic wastewater, which comprises a magnetic bioreactor and a rare-earth magnetic disc separation device, wherein the magnetic bioreactor consists of a reaction vessel, and microbe carrier magnetic species or magnetic zooglea formed by the microbe carrier magnetic species, which is placed in the reaction vessel; the magnetic bioreactor is connected with the rare-earth magnetic disc separation device by a flowing discharge pipeline; and the upper part of the rare-earth magnetic disc separation device is provided with a water outlet pipe, and the lower part thereof is provided with a sludge discharge valve. Since the invention utilizes the microbes attached to the microbe carrier magnetic species or magnetic zooglea to decompose the organic matter, while the magnetic zooglea and the treated water can be treated by the rare-earth magnetic disc separation device for solid-liquid separation, not only the cost on the investment and operation is lower than that of the membrane bioreactor, but also the separation efficiency is high, the energy consumption is low, and the effect on denitrification, phosphorous, SS, COD and BOD removal; and the invention is particularly suitable for treating the organic wastewater with large flow and high concentration.

The invention relates to the field of fertilizers, in particular to a high concentration anti-disease compound microbial bacterial fertilizer and a production method. The effective viable count of thefertilizer is greater than or equal to 5*10<9> (5 billions)/ml, and each of bacteria is not lower than 0.3 billion/ml; the bacterial strain is bailipenicillium, bacillus subtilis, bacillus megatherium, trichoderma sp, Burkholderia cenocepacia and PGRP. The fertilizer has the advantages of improving the soil physical and chemical properties, enhancing soil fertility, assisting plants to absorb nutrients, enhancing the anti-disease and anti-drought abilities of plants, improving the environmental pollution, saving the energy sources, lowering the production cost and the like. The effective viable count of the high concentration anti-disease compound microbial bacterial fertilizer is kept above 5 billions/ml, thereby providing high concentration raw material bacterial liquor to production ofsolid bacterial microbial bacterial fertilizes and compound fertilizers.

The invention provides a silicon-controlled rectifier and a manufacturing method. The silicon-controlled rectifier comprises a semiconductor substrate; a first N trap, a P trap and a second N trap which are generated in the semiconductor substrate and sequentially and adjacently arranged; a first high-concentration P-type doping and a first high-concentration N-type doping which are located at theupper part of the first N trap; a second high-concentration N-type doping and a second high-concentration P-type doping which are located at the upper part of the second N trap; and a third high-concentration P-type doping which is positioned at the upper part of the P trap. The first high-concentration P-type doping and the first high-concentration N-type doping are connected to form a first device electrode; and the second high-concentration N-type doping and the second high-concentration P-type doping are connected to form a second device electrode. According to the designed and manufactured silicon-controlled rectifier, the structural characteristics of the device are symmetrically distributed, a PNPN channel can be formed when the high-voltage input and output end of positive high voltage or the high-voltage input and output end ofnegative high voltage are connected on first device pole (or the second device pole) without the conduction condition in any direction, and the bidirectional anti-static protection function of the positive high voltage and the negative high voltage can be achieved while circuit application is implemented.

A primary particulate diffusion eliminating method and an apparatus thereof belong to the technical field of environmental science and engineering, and relate to a method and an apparatus for implanting unipolarity ions to charge and thicken PM 2.5 by diffusion charging thickening, and trapping to eliminate PM 2.5 primary particulates. The apparatus is characterized by comprising a unipolarity ion generation part, a diffusion charging part and an electron trapping part; the eliminating method is characterized by comprising: implanting the PM 2.5 primary particulates and high-concentration unipolarity ions in a high-frequency high-pressure alternating electric field at a time, thickening into primary particulates each with particle size of larger than 2 [mu]m via diffusion charging coagulation, trapping under the effect of static electric field active force to eliminate pollution of the PM 2.5 primary particulates with elimination rate of 85%-99.8%. An effective method is provided for elimination of PM 2.5 primary particulate atmosphere pollution, also can be used in ultrafine dust diffusion charging pre-coagulation of dedusters, and has the advantages of being high in trapping efficiency, substantially low in initial investment and operation cost and energy consumption, and the like.

The invention discloses a method for electrochemical pretreatment on methyl sulcotrione pesticide wastewater. The method comprises the following steps: preparing a titanium-based tin antimony ruthenium cerium oxide electrode by using a coating-thermolysis method, feeding high-concentration methyl sulcotrione wastewater through an electrolytic cell which takes the titanium-based tin antimony ruthenium cerium oxide electrode as an anode, and continuously treating the wastewater for a certain time under certain current density. The titanium-based tin antimony ruthenium cerium oxide electrode is very good in stability, high in oxygen evolution potential and high in catalysis and oxidation capabilities. According to the method, the titanium-based tin antimony ruthenium cerium oxide electrode is adopted to pretreat high-concentration, high-salt and hard-biochemical wastewater generated in the production process of methyl sulcotrione, and the result shows that under conditions of certain pH values, current density and treatment time, the COD removal rate of the methyl sulcotrione can be greater than 50%, the BOD/COD is increased to be greater than 0.3 from less than 0.1, and the biodegradability is greatly improved. The electrochemical oxidation of the titanium-based tin antimony ruthenium cerium oxide electrode is very applicable to pretreatment on biochemical degradation of the high-salt high-concentration wastewater generated in the production of methyl sulcotrione.

The invention relates to a method for treating dinitro-diazophenol (DDNP) primary explosive production wastewater, belonging to the technical field of primary explosive sewage environmental-friendly treatment. The method is characterized by comprising the following steps: 1), carrying out classification: carrying out separation treatment on wastewater generated in the DDNP primary explosive production process according to the concentrations of poisonous compounds to obtain high-concentration wastewater and low-concentration wastewater, and respectively storing the high-concentration wastewater and the low-concentration wastewater; 2) carrying out high-concentration wastewater treatment: spraying the high-concentration wastewater on solid fuel, carrying out evaporation concentration, placing the solid fuel with less water after evaporation into a boiler, and incinerating the solid fuel with less water; 3) carrying out low-concentration wastewater treatment: introducing the low-concentration wastewater into a settling pond, settling the low-concentration wastewater, and utilizing the boiler to evaporate the supernatant liquor; and 4), periodically fishing out and cleaning the settling pond, blending solid precipitates in the settling pond into the solid fuel, and incinerating the solid precipitates and the solid fuel together. The method of the invention has the advantages that the wastewater treatment is safe and environmental-friendly, zero discharge of the DDNP primary explosive sewage is achieved, energy resources are saved, and the service life of production equipment is not influenced.

Disclosed is a process for producing the L-form of an amino acid enzymatically from an enantiomeric mixture of the amino acid. The process includes the step of contacting a transformant or a treated product thereof with an enantiomeric mixture of the amino acid. The transformant includes a single host and one or more recombinant vectors introduced thereinto, in which the one or more recombinant vectors include one or more expression vectors and nucleotide sequences integrated thereinto respectively, and the nucleotide sequences are a nucleotide sequence encoding an enzyme capable of converting the D-form of an amino acid into a keto acid and a nucleotide sequence encoding an enzyme capable of converting a keto acid into the L-form of an amino acid. According to this process, a reaction for converting the D-form of an amino acid into a keto acid and a reaction for converting the keto acid into the L-form of the amino acid can be conducted in a single step. Disclosed also is a transformant capable of converting into the L-form of an amino acid as accumulated in a high concentration. The L-form of an amino acid can be efficiently produced from an inexpensive starting material by using the transformant.

The invention discloses a multipurpose gas detection and purification device. The device comprises a power supply assembly, an induction control assembly, an execution assembly and an air purificationassembly; the induction control assembly comprises a single-chip microcomputer, a gas-sensitive sensor and a gas concentration sensor; the gas-sensitive sensor is used for detecting peculiar smell, toxic gas and concentration information thereof; the gas concentration sensor is used for detecting the concentration information of traditional Chinese medicine gas after the action of a fan; the execution assembly comprises a high-temperature traditional Chinese medicine evaporator, the fan and a display screen, wherein the high-temperature traditional Chinese medicine evaporator, the fan and thedisplay screen are correspondingly with the single-chip microcomputer, and the high-temperature traditional Chinese medicine evaporator is placed in front of the fan and used for evaporating the traditional Chinese medicine gas; and the single-chip microcomputer controls the fan to work discontinuously according to the concentration information of the traditional Chinese medicine gas, and controls the traditional Chinese medicine evaporator to work or not in high temperature according to the concentration information of the toxic gas. According to the device, the toxic gas in closed space canbe eliminated, the traditional Chinese medicine gas is used for discontinuously neutralizing an odor, the concentration of the traditional Chinese medicine gas is controllable, and therefore discomfort caused by exceedingly-high concentration of the traditional Chinese medicine gas is avoided.

The invention discloses a device for treating high-concentration ammonia nitrogen in coking wastewater by using a surfactant. The device comprises a device main body (1), a water inlet (2) and a water outlet (3), wherein the water inlet (2) and the water outlet (3) are formed in the left and right sides of the device main body (1) respectively; the interior of the device main body (1) is divided into five connected reaction zones (4 to 8) from top to bottom. When the device is used for treating the high-concentration ammonia nitrogen in the coking wastewater, the generation of ammonia gas is avoided, so that secondary pollution is avoided, and effluent can reach a national primary standard. In addition, the device also has the advantages of simple structure, stable effect, ammonia nitrogen removal rate of more than 99.9 percent and the like, and is convenient to operate.

The invention belongs to the technical field of sewage treatment, and in particular to a method for improving the removal effect of nitrogen pollutants in sewage. Efficient nitrogen degrading bacteria are prepared by performing enlarged cultivation on thauera sp. FDN-01. When the nitrogen-containing pollutants in the sewage are degraded, the efficient degrading bacteria are added into an anoxic unit, and aerobic activated sludge which is domesticated successfully is added into an aerobic unit. According to the method provided by the invention, under the condition of simulating coexistence of high-concentration nitrate nitrogen, nitrite nitrogen and ammonia nitrogen, the quality of effluent is far higher than first-level A effluent standard of 'Discharge standard of pollutants for municipal sewage treatment plant' (GB18918-2002) (the total nitrogen is less than or equal to 15 mg/L, and ammonia nitrogen is less than or equal to 5 mg/L), and the removal rate of the total nitrogen in the sewage is high. By the method, secondary pollution to the environment is avoided and the treatment cost is low.

The invention relates to a method for gas purification, and in particular provides a catalyst used in selective oxidative desorption of carbon monoxide in high-concentration hydrogen and a preparation method for the catalyst and a using method for the catalyst. The catalyst comprises a carrier which is loaded with an active component and aids, wherein the active component is Pt, and the aids is one or a combination of two of Zn, Cu, La, Ce, Pr, Fe, Sn and Co; and the carrying capacity of the active component is 0.01 to 0.1 weight percent of the catalyst, and the carrying capacity of the aids is 0.5 to 5 weight percent of the catalyst. By the catalyst, the carbon monoxide can be removed from the hydrogen at the temperature of between 100 and 200 DEG C, the reaction airspeed is 1,000 to 15,000 h<-1>, the desorption accuracy of CO can be less than 1 ppm or 10 ppm or 100 ppm according to requirements, and the content of O2 at an outlet is less than 1 ppm.