1083results about How to "Improve removal effect" patented technology

The invention relates to a preparation method of protein feed in oilseed dregs. Oilseed dregs are used as a main material in which accessories are added and mixed, and the mixed material is preprocessed and mixed with water; seed liquid resurrection is carried out on the sieved strain of high-efficient degradation anti-nutritional factors; in the form of single strain or combination, 2% to 15% of general inoculum concentration of the strains by weight are simultaneously connected with mixture solid fermentation medium after preprocessing on standing at the temperature of 25 to 45 DEG C, mixed and fermented for 24 to 96 hours; after fermentation, the finished products are obtained after drying and dehydration; the raw materials have the following proportions by weight: 40% to 60% of oilseed dregs, 0 to 10% of accessories and 40% to 50% of water. According to the composition, characteristics and nutrient advantages of anti-nutrient substance in oilseed dregs, the method not only can efficiently eliminate anti- nutritional factors in the dregs but also can improve the oligopeptide content and simultaneously maintains higher protein content so that the quality of protein feed can be further advanced and improved.

A purified water activated carbon produced from the plant castoff includes the material ingredients of following weight percentage: The percentage of highly processed plant waste residue is between 80 percent and 84 percent. The percentage of non highly processed plant waste residue or a soft coal is between 15 percent and 19 percent. The percentage of a chemical additive is between 1 percent and 5 percent. The present invention makes the best of a lignin, a fibrin and a rudimental sugar in the plant waste residue and takes the ingredients as a backbone. A little chemical substance is used to adjust the hole distribution and the surface functional groups. The produced purified water activated carbon has the following advantages. (1). Strong decoloration capability. The present invention is applicable to the color substance with giant molecule group. (2). Strong deodorization capability. The present invention is especially applicable to the alga and alga poison. (3). Strong capability of removing the harmful and organic residuum (MCA/DCA/THC/MTBE and others). The present invention has also a low cost and a good effect.

The invention discloses a purification method for sugammadex sodium. The purification method comprises the following steps: 1) putting a part of cation exchange resin into a suspension or solution of a metal hydroxide or metal salt for soaking and carrying out flushing so as to obtain transformed ion exchange resin A, and putting the other part of the cation exchange resin into an aqueous solution of sodium hydroxide for soaking and carrying out flushing so as to obtain transformed ion exchange resin B; and 2) treating a crude sugammadex sodium product with the transformed ion exchange resin A so as to accordingly convert the crude sugammadex sodium product into a sugammadex salt with water-solubility less than sugammadex sodium, then carrying hot slurrying and purification and carrying out conversion via the transformed ion exchange resin B so as to obtain sugammadex sodium, or carrying out conversion via sodium hydroxide after treatment with the cation exchange resin so as to obtain sugammadex sodium. The method provided by the invention can substantially improve the purity of sugammadex sodium, reduces purification difficulty of sugammadex sodium, exerts good removal effect on impurities in the crude sugammadex sodium product, has good economical efficiency and is better applicable to industrial production.

The invention discloses a dechlorination agent and a preparation method thereof. The dechlorination agent is prepared from the following materials: 15-70wt% of carrier, 15-60wt% of active components, 1-10wt% of a pore-forming agent, 1-5wt% of an extrusion aid and 2-10wt% of a binder, wherein the carrier is at least one of weak acid salt, kaolin, pseudo-boehmite or Al2O3. The preparation method comprises the steps of mixing the materials, adding water, mixing, kneading, extruding, drying and calcining. The dechlorination agent has the advantages of high adsorption efficiency against high-concentration or low-concentration HCl at normal temperature, high dechlorination precision, high chlorine content of above 30% and a certain adsorption effect against organic chlorides; chemical reaction adsorption is adopted for adsorption against HCl, the adsorption is performed at normal temperature and normal pressure, energy consumption is not required, and the absorbed HCl and the active component in the dechlorination agent perform reaction to form a stable chemical substance to exist in an adsorber bed layer; and the dechlorination agent further has the advantages of low toxicity, high stability, easiness in filling and unloading, and no secondary pollution.

The invention provides polyvinyl alcohol. The polyvinyl alcohol is characterized in that the average polymerization degree is no higher than 500, the blocking degree is 0.50-0.85, and the alcoholysis degree is 35mol%-65mol%. The provided polyvinyl alcohol with a low polymerization degree, a low alcoholysis degree and a low viscosity has especially excellent viscosity stability. When the provided polyvinyl alcohol is used for a vinyl polymer suspension polymerization reaction, the monomer droplet disperse dispersion capability is strong, the dispersion stability is good, and the provided polyvinyl alcohol is free from vinyl polymer polymerization conditions. The pores of the prepared vinyl polymers are distributed uniformly and the porosity is high. The removal performance of reaction residual monomers is good, the absorption capability of added plasticizers is excellent during the subsequent processing process, the processing properties are excellent, plasticizing time can be shortened, and the fisheye number is decreased.

The present invention provides a mixture for a SCR denitrification catalyst regeneration liquid, and a method for carrying out SCR denitrification catalyst regeneration by using the regeneration liquid. With the present invention, a regeneration performance of the catalyst can be effectively increased, an active substance supplement process can be eliminated, a regeneration cost is effectively reduced, and a regeneration process is simplified.

The invention discloses a gas outburst cyclone desulfurization dust removal device, comprising a cooling defluorination device, a desulfuration absorbing tower and a defogger. The flue gas containing SO2 is first introduced into the cooling defluorination device to be eliminated most of HF gas by the sprayed alkaline liquor spray and fresh water, and the temperature is then reduced to below 80 DEG C. The cooled defluorination flue gas is sent into the desulfuration absorbing tower; after obtaining strong rotating momentum in a cyclone gas outburst pipe with a cyclone device, the flue gas is dashed into a slurry pond in tangential direction of the vents at the bottom of the pipe; the optimally distributed array form enhances the effect of rotary gas spraying into slurry liquid, strengthens the process of gas and liquid transformation, improves efficiency of desulfurization dust removal and reduces resistance loss. The flue gas after purification is emitted out after a multi-pipe cyclone centrifugal defogger. The gas outburst cyclone desulfurization dust removal device can realize efficiency of desulfurization above 95 percent and dust removal efficiency of higher than 90 percent, which can be used in purification process of flue gas in power plant, sintering smoke and other gases containing SO2.

The invention discloses a high-efficiency composite desulphurization solvent and a system and method for removing acidic gas and organic sulfur. The high-efficiency composite desulphurization solvent comprises, by mass, 70-85% of compound amine, 10-20% of a desulfurization enhancer, 10-30% of a physical solvent, 0.01-0.1% of an antifoaming agent, 0.5-2% of a benzylamine anti-oxidant and 0.5-2% of a heterocyclic amine antiseptic. The high-efficiency composite desulphurization solvent has the advantages of large acidic gas load, low sulfur content of purified gas, stable solvent performances and no corrosion on equipment, and can remove most of H2S and a large part of organic mercaptan from mixed gas. The high-efficiency composite desulphurization solvent and the system and method can greatly reduce a gas purification cost and reduce total sulfur content of the purified gas. The high-efficiency composite desulphurization solvent and the system and method can be used for removing H2S, CO2 and organic mercaptan in natural gas, petroleum refinery gas and synthetic gas.

The invention belongs to the field of wastewater treatment technologies and resource recycling and relates to a device and method for recovering ammonia during wastewater treatment. In the invention, on the basis of chemical equilibrium and the difference of boiling points of NH3 and H2O, a principle that ammonia volatilizes and water does not volatilize when the temperature is controlled at 40-60 DEG C and the vacuum degree is controlled at 0.04-0.06MPa is adopted, and processes of vacuum and bubbling reinforced stirring and falling film heating are utilized under a lower temperature by utilizing a vacuum falling film bubbling and deaminizing device to enlarge the contact surface between a gas phase and a liquid phase and enhance the removal effect of ammonia nitrogen, and the volatilized ammonia is recovered by utilizing the negative pressure to avoid air pollution. By means of the method and the device disclosed by the invention, the advantages of high recovery rate, low energy consumption, convenience for operation and capability of continuous and intermittent production are achieved.

The invention discloses a waste gas treatment air purification device which comprises a unit case, a waste gas inlet pipe, and an air inlet pipe; the invention is characterized in that a water tank is disposed at the bottom inside the unit case; a photolytic light source, a filler layer, a spraying layer, and an active carbon layer are orderly mounted above the water tank; the waste gas inlet pipe and the air inlet pipe extend into the water tank at one side of the unit case. With a water-attack deduster principle, the invention allows organic waste gas to dissolve into water through high-speed air flow, performs cracking by using high-energy high-ozone ultraviolet light beams, performs air purification with the synergic photolysis of the fillers and spraying, and finally reaches the national discharge standard; the invention is simple in operation, convenient for maintenance, and integrated in structure, greatly reduces production cost, and realizes thorough purification of toxic and harmful gas.

The invention discloses a catalytic reforming resurgent gas antichlor and it's preparing method. The antichlor comprises (by weight percent): Ca(OH)2 or CaO 30%-60%, MgCO3 or MgO 20%-30%, K2CO3 or KOH 10%-15%, foraminous zeolite or siallitic soil 5%-15%, alhydrogel powder or silicasol 5%-15%; The total of the raw materials are 100%. The suing range comprises: IFP-I type reforming regeneration craft, IFP- II type reforming regeneration craft, UOP type reforming regeneration craft and other types of reforming regeneration craft.

The invention discloses an efficient multi-field-coordination fine particulate matter removal device and an efficient multi-field-coordination fine particulate matter removal method. The device comprises an outer field coagulation area, a direct current dust pre-collecting area, a pulse charge coagulation area and a direct current dust collecting area which are connected in sequence, wherein water steam and a chemical agglomeration agent are introduced from a nozzle of the outer field coagulation area respectively; the direct current dust pre-collecting area and the direct current dust collecting area are arranged in a line-plate type symmetric structure, a line electrode applies negative direct current high voltage, and a plate electrode is grounded and adopts layout of a water film electrode; the pulse charge coagulation area is arranged in the line-plate type symmetric structure, the line electrode applies positive pulse high voltage, and the plate electrode is grounded and adopts layout of the water film electrode. The device and the method aim at mineral particulate matters discharged by a fixed source; aerosol particulate matters, particularly fine particulate matters, can be subjected to efficient coagulation removal in a structural form of double coagulation areas and double dust collecting areas by using a multi-field-coordination method combined by a phase-change coagulation growth technology, a chemical agglomeration and flocculation mechanism and an electric coagulation technology, so that the phenomena of back corona, re-entrainment of dust, ash deposition and corrosion of the plate electrode are effectively avoided.

The invention discloses a coal desulfurization method which utilizes microwave to catalyze, which comprises the following steps: utilizing water to be dissolvent, leading coal and auxiliary agent mixture to form more even disperse system through physically stirring, and doing a thermal desulfurization reaction under the catalytic action of microwave. The method has the advantages that firstly, the method has excellent desulfurization efficiency under the premise without damaging coal quality structure, secondly, the method has high reaction efficiency and excellent statute of limitation, thirdly, the method has simple operation, whose auxiliary agent is easy to get, and the method has wide popularization using value.

The present invention is treating process and apparatus of underground water with high concentration of humic substance and high arsenic content. The treating process combines ozone oxidation to oxidize hard-to-treat three-valent arsenic into eary-to-treat five-valent arsenic and to oxidize humic substance into small molecular organic matter; degradation and adsorption of humic substance oxidizing product with bioactive carbon; and the final complete elimination of five-valent arsenic with efficient arsenic eliminating adsorbent. The said process has high arsenic eliminating effect and long adsorbent use life before regeneration, and can treat underground water with high concentration of humic substance and high arsenic content to reach safe drinking water standard at high efficiency and low cost.

The invention discloses a method of treating hexavalent chromium wastewater by immobilized microorganisms. The method aims at solving the problem that the human health is affected as the environment is severely polluted by the hexavalent chromium wastewater. The method comprises the following steps: a step I of preparing immobilized microorganism particles and a step II of treating wastewater, wherein in the step I, a microbial agent is dissolved into a sodium alginate solution, an additive is added to form a mixed solution, then the mixed solution is added into a calcium chloride solution to obtain embedded particles, and the embedded particles are stewed and immobilized, and washed by normal saline to obtain the immobilized microorganism particles. According to the method of treating hexavalent chromium wastewater by immobilized microorganisms disclosed by the invention, by selecting and matching the additive and a culture medium, the treatment effects and treatment efficiency of the hexavalent chromium wastewater can be greatly improved to meet the needs of industrially treating the hexavalent chromium wastewater. The method of treating hexavalent chromium wastewater by immobilized microorganisms has the advantages of low cost, small equipment investment, convenience in operation, and the like, has a wide market prospect and a high application value, and is worthy of being popularized and applied on a large scale.

The invention relates to a hollow fiber compound nanofiltration membrane. The nanofiltration membrane takes a porous supporting layer as an inner layer and a separating function layer as an outer layer. A casting membrane solution of the porous supporting layer contains an inner layer macromolecular polymer which is selected from one or more of polysulfone, polyether sulfone, polyvinylidene fluoride, polyvinyl chloride and polyacrylonitrile; a casting membrane solution of the separating function layer contains an outer layer macromolecular polymer which is selected from one or more of polyetherimide, polyether-ether-ketone, sulfonated polyether-ether-ketone, polymethyl methacrylate and polyvinyl alcohol; a preparation method comprises the following steps: synchronously extruding and molding the inner layer casting membrane solution and the outer layer casting membrane solution; solidifying to obtain a membrane filament in a nascent state; and carrying out an oxidizing agent aqueous solution to obtain the hollow fiber compound nanofiltration membrane. The invention further provides the preparation method of the nanofiltration membrane correspondingly. According to the hollow fiber compound nanofiltration membrane provided by the invention, the flux of the nanofiltration membrane is remarkably improved, and moreover, the nanofiltration membrane further has the certain desalinization rate.

The present invention discloses a health-care food with the function of discharging lead from human body and its preparation method. It is made of chitosan, chitooligose, locirce and poria extract asmain effective component, and using sodium alginate, pectin, vitamin C, zinc gluconate and calcium gluconate as auxiliary material and combining them to obtain the invented product.