812results about How to "Good decolorization effect" patented technology

The invention discloses a low-temperature cold-pressing and bivariate continuous refining and processing method for oiltea camellia seed oil, which mainly comprises the following technical steps of squeezing, leaching, degumming, deacidifying, decoloring, deodorizing, winterizing, dewaxing and the like. In the method, the technology of low-temperature drying and low-temperature squeezing and the bivariate mixed decoloring technology of activated carbon and activated clay are adopted to adsorb and decolor oil, thereby preventing from generating harmful substances, such as benzopyrene, coking objects, carbide and the like, and improving the quality and the grade of the product. The method has good economic benefit and social benefit.

The invention relates to an activated carbon loaded iron-cobalt oxide catalyst of which the components and content in weight percentage are that: 80.0 percent to 99.0 percent of activated carbon and 1.0 percent to 20.0 percent of iron-cobalt bi-metal oxide, wherein the cobalt and iron mole ratio is 1:1 to 1:19. The catalyst is integrated with ultrasonic wave and persulfate, and is used for treating organic wastewater. The catalyst and the persulfate are used for treating the organic wastewater with azo dye orange II as a target pollutant, and the decolorization rate reaches 74.5 percent within 30min; after the ultrasonic wave is added, the decolorization rate can be improved to 81.2 percent within 30min, and the total organic carbon (TOC) removal rate can reach 43.4 percent. The catalyst has the advantages of high catalytic efficiency and low metal ion dissolution rate. The catalyst is integrated with the ultrasonic wave and the activated persulfate to treat the organic pollutants in the wastewater, the treatment is carried out under milder conditions, the method is simple, the cost is low and the treatment effect is good.

The invention belongs to the field of photocuring materials and relates to a clean production method of alkoxylation glycerol triacrylate. The method comprises the following steps that: (1) ethoxylation glycerol/propoxylation glycerol, acrylic acid, catalysts, solvents, polymerization inhibitors and antioxidants are subjected to esterification backflow dehydration; (2) soda flakes and a small quantity of water are added for neutralization; (3) magnesium polysilicate absorbing agents are added for absorbing salt generated during the neutralization; (4) the pressure reduction dehydration is carried out, and solvents are removed; (5) press filtering is carried out, and the magnesium polysilicate and the salt absorbed by the magnesium polysilicate are filtered away; (6) alkaline calcium bentonite and calcium bentonite are added, and decoloration, trace moisture removal and trace acid removal are carried out; (7) press filtering is carried out; and (8) product index detection is carried out. The method belongs to the high-yield clean production method of the ethoxylation glycerol triacrylate and propoxylation glycerol triacrylate and has the advantages that economic benefits and environment benefits are realized, and the problem of organic waste water pollution in the production process of the ethoxylation glycerol triacrylate and the propoxylation glycerol triacrylate is fundamentally solved.

The invention relates to a covalent bond type inorganic/organic compound flocculant, a production technique and an application thereof. The invention adopts Gamma-APDES (gamma-Aminopropylmethyldiethoxysilane) and aluminum chloride solution as the raw materials to produce the covalent bond type inorganic/organic compound flocculant by gradually dripping alkaline. The a covalent bond type inorganic/organic compound flocculant, the production technique and the application thereof have the advantages that the inorganic constituent and the organic constituent in the flocculant are bonded by covalent bond, which has good stability, good turbidity removal and decoloration effect and wider optimal dosing range. The covalent bond type inorganic/organic compound flocculant can be used for the water purification and the turbidity removal, decoloration, deoiling and solid-liquid separation during the wastewater treatment.

The invention discloses a silicone rubber pyrolysis recycling process. According to the technical scheme disclosed by the invention, the process is characterized by comprising the following steps: smashing organic silicone wastes; carrying out pyrolysis, polymerization rearrangement as well as decoloration and odor removal on the organic silicone wastes; and processing a finished product so as to obtain a simethicone product. The process is relatively high in recycling efficiency and realizes reduction in environmental pollution.

The invention which belongs to the light-cured material field relates to a clean production method of DPGDA or TPGDA. The method concretely comprises the following steps: 1, carrying out esterification reflux dehydration on dipropylene glycol/tripropylene glycol, acrylic acid, a catalyst, a solvent, a polymerization inhibitor and an antioxidant; 2, adding sodium hydroxide and a small amount of water to neutralize; 3, adding a magnesium polysilicate adsorbent to adsorb a salt generated through neutralization; 4, carrying out reduced pressure dehydration and desolventization; 5, press-filtering to filter out magnesium polysilicate and the salt absorbed thereby; 6, adding alkaline calcium bentonit and calcium oxide to decolor, remove trace water and remove trace acids; 7, press-filtering; and 8, carrying out product index detection. The clean production method of the DPGDA or the TPGDA of the invention, which has the advantages of high yield, economic benefit possessing and environmental benefit possessing, fundamentally solves an organic wastewater pollution problem in the production process of the DPGDA or the TPGDA.

The invention discloses paenibacillus sp. Y24-1 CGMCC No. 3700 and application of flocculating agents generated by the paenibacillus to the aspect of removing suspended substances, coloring agents and heavy metal from waste water. The ion absorption rate of the paenibacillus is respectively 90.535 percent for Pb2<+>, 78.74 percent for Hg<2+>, 18.457 percent for Cu<2+>, 15.853 percent for Co<2+> and 19.365 percent for Zn<2+>. The method comprises the following steps: carrying out fermentation culture on strains; taking fermentation liquid for centrifugation; adding absolute ethyl alcohol with 1.5 times of the volume into supernatant fluid; carrying out still standing at 4 DEG C after the materials are uniformly mixed; carrying out centrifugation on separated precipitate; carrying out ethanol washing and vacuum drying on obtained precipitate to prepare the paenibacillus. The flocculation activity is between 81.7 and 83.15 percent. The invention has wide application in the aspect of removing suspended substances, coloring agents, heavy metal and the like from waste water.

The invention discloses a method for preparing high-quality fine lacquer wax product, which comprises the following steps of: firstly, microwave drying lacquer seeds, separating skin and cores, and lixiviating the skin and flesh part of the lacquer seeds by using a non-polar solvent to obtain rough lacquer wax; heating and uniformly mixing the lacquer wax and a certain proportion of Pd/C catalyst in a high-temperature high-pressure reactor, charging hydrogen gas and maintaining a certain hydrogen gas pressure for reaction; after the reaction is completed, and filtering and discoloring the product while hot to obtain highly saturated lacquer wax; and detecting the variation of fatty acid content in the lacquer wax, by using gas chromatography. The method is simple and convenient, and the problems of low lacquer wax melting point, easy rancidity and the like caused by high content of unsaturated fatty acid in rough lacquer wax can be effectively solved. The obtained hydrogenated fine lacquer wax product has similar physical and chemical properties to Star Cherry-A white wax processed by Japan Araki Wax Manufacturing Company and can be widely applied to the field of daily chemicals.

The invention discloses an aluminum-zinc polysilicate composite flocculating agent and application thereof. Sodium silicate solution and excessive sulfuric acid are mixed with each other to prepare polysilicate solution, zinc sulfate and aluminum sulfate solution, polyacrylamide, calcium hydroxide and sodium hypochlorite are sequentially added into the polysilicate solution, and reaction is carried out to obtain the aluminum-zinc polysilicate composite flocculating agent. The aluminum-zinc polysilicate composite flocculating agent and the application have the advantages that the aluminum-zinc polysilicate composite flocculating agent can be applied to the field of water treatment, accordingly, excellent effects of removing colors, turbidity and carbon can be realized, coagulated floc particles are large, the aluminum-zinc polysilicate composite flocculating agent is high in floc settling velocity, excellent net capturing effects can be realized, and the excellent effects of removing the colors and the turbidity can be realized; raw materials for the aluminum-zinc polysilicate composite flocculating agent can come from wide sources, the aluminum-zinc polysilicate composite flocculating agent is easy to prepare and can be widely applied to the field of wastewater from dyeing and printing and papermaking industries and the like and the field of advanced municipal sewage treatment, and the like.

The invention belongs to the field of photo-curing material, and relates to a cleaning production method for di-trimethylolpropane tetra-acrylic ester or pentaerythritol tetra-acrylic ester. The method specifically comprises the following steps of: (1) dehydrating di-trimethylolpropane/pentaerythritol, crylic acid, catalyst, solvent, polymerization inhibitor and antioxygen by means of esterification and backflow; (2) adding sheet alkali and a small quantity of water to neutralize; (3) adding magnesium polysilicate adsorbent to adsorb and neutralize the generated salt; (4) dehydrating in a pressure reducing way, and removing solvent; (5) carrying out filter pressing, filtering out the magnesium polysilicate and salt adsorbed by the magnesium polysilicate; (6) adding alkaline calcium bentonite and calcium oxide, to remove color, trace moisture and trace acid; (7) carrying out filter pressing; and (8) detecting the indexes of a product. The invention belongs to a cleaning production method for the di-trimethylolpropane tetra-acrylic ester or the pentaerythritol tetra-acrylic ester, which is good in economic benefit and environmental benefit, so that the problem of organic waste water pollution when the di-trimethylolpropane tetra-acrylic ester or the pentaerythritol tetra-acrylic ester is produced can be basically solved.

The invention provides an extraction method of morindea officinalis polysaccharide, belonging to the technical field of traditional Chinese medicines and solving the problems that in the existing morindea officinalis polysaccharide extraction method, the extraction method has complicated process steps and a poor protein removal effect, and the yield and purity of the obtained morindea officinalispolysaccharide are low. The extraction method of morindea officinalis polysaccharide in the invention comprises the following steps of: drying morindea officinalis rhizome and then smashing to 40-80 meshes; adding a chloroform/methanol mixed solvent in morindea officinalis powder for carrying out reflux extraction; carrying out alcohol extraction on a filter cake obtained by filtration and then adding water for lixiviation; subsequently, filtering and concentrating a filtrate, carrying out alcohol precipitation on a concentrated liquid and then filtering so as to obtain the crude morindea officinalis polysaccharide; adding the crude morindea officinalis polysaccharide into a n-butanol/trichloroacetic acid mixed solvent for processing, and entering a chromatographic column for elution; andcarrying out concentration, alcohol precipitation, filtration and drying on an effluent liquid so as to obtain the morindea officinalis polysaccharide. The extraction method of the morindea officinalis polysaccharide in the invention has a simple process and a good protein removal effect, and the extracted morindea officinalis polysaccharide has less impurities and high yield and purity.

The invention discloses a preparation method of an amino acid modified attapulgite clay palm oil decolorizing agent. The preparation method comprises: inorganic acid activating treatment of attapulgite clay, amino acid modification of the attapulgite clay, after a certain reaction time filtering and impurity removing, solid-liquid separation, drying and baking, and crushing and sieving, and obtaining of the amino acid modified attapulgite clay palm oil decolorizing agent. The amino acid modified attapulgite clay palm oil decolorizing agent prepared by the preparation method not only has good decolorizing effect, but also can prevent the palm oil oxidation deterioration during storage, and improve the storage security.

The invention discloses an ampholytic modified grafted starch flocculant. The flocculant is characterized in that the preparation method comprises the following steps: under the action of an initiator, starch is used to perform a grafting reaction with an acrylic or vinyl sulfonate monomer the mass of which is 0.05-5 times that of starch to obtain an anionic starch graft polymer, and then the anionic starch graft polymer reacts with a cationic monomer the mass of which is 0.05-5 times that of starch to prepare the flocculant. The ampholytic modified grafted starch flocculant not only has the functions of coagulation and flocculation, but also has the decoloring effect and can be widely used in the industries such as petroleum, coal, sewage treatment, sludge dehydration and papermaking. In addition, the preparation method of the flocculant has the advantages of simple method, high productivity and the like.

Relating to the resource regeneration field, the invention discloses a polyethylene terephthalate (PET) waste recovery process, and solves the recovery problem of colored PET waste. The method includes the steps of: S1. crushing, cleaning and drying PET waste; S2. adding the treated PET waste, EG and a catalyst into a reaction kettle, carrying out depolymerization reaction completely at a constant temperature of 170-210DEG C; S3. performing cooling to 125-145DEG C, and conducting hot filtration to obtain primary filtrate and unreacted PET; S4. distilling the primary filtrate to obtain EG; S5. adding a solvent into the distilled liquid, and performing hot filtration to obtain secondary filtrate and an oligomer of BHET; S6. adding a decolorizing agent into the secondary filtrate, and conducting hot filtration to obtain tertiary filtrate; S7. subjecting the tertiary filtrate to cooling crystallization to precipitate needle crystals, conducting filtration to obtain monomer BHET, and performing drying at 60DEG C; S8. conducting polycondensation under a low vacuum condition, and carrying out final polycondensation under a high vacuum condition; and S9. carrying out strip casting, cooling, grain cutting and drying, thus finally obtaining the PET particle product.

The invention relates to a corn silk polysaccharide separation and decoloring method, which is characterized in that the method comprises the following steps: crushing corn silks, then mixing the corn silks with water in a mass ratio of 1: 10 to 1: 15, adding cellulase with the corn silk mass of 1.0-1.5%, and regulating to a 45 DEG C of constant-temperature water bath with the pH value of 4.5-5.5; filtering polysaccharide leaching liquor after enzymolysis, centrifugating, taking liquid supernatant for vacuum concentration, and removing protein; adding powdered activated carbon into a polysaccharide solution after the removal of protein and the 45 DEG C of constant-temperature water bath; after centrifugation, taking the liquid supernatant, utilizing a microporous filter membrane for sucking filtration for one time to three times, and removing the activated carbon residue; adding anhydrous ethanol or methanol into the decolored silk polysaccharide solution, and centrifugating after uniform mixing; drying precipitation in a vacuum mode to obtain corn silk polysaccharide. The method can decolor pigment in the solution in corn silk polysaccharide separation and extraction, so the effect is obvious, the pigment removal rate can reach 85-90%, and the polysaccharide retention rate can reach more than 83%. The process is simple. At the same time, the method effectively removes the activated carbon left over in the decolored polysaccharide solution and maintains the purity of the polysaccharide color of the corn silk polysaccharide.

The invention discloses a method for preparing a polysilicate ferro-aluminum sulfate composite flocculant from red mud waste. The method comprises the following steps: (1) putting red mud waste and anactivating agent into a muffle furnace to be roasted and grinding the red mud waste to obtain activated red mud powder; (2) putting an oxidizing agent and the activated red mud powder into a sulfuricacid solution to react; (3) adding adjusting salt to adjust a molar ratio of Fe to Al to Si in the solution as 1 to 1 to (0.2 to 0.7), utilizing a pH conditioning agent to adjust a pH of the solutionto 1 to 6; (4) adding a stabilizer to react and filtering to obtain the polysilicate ferro-aluminum sulfate composite flocculant. By means of the method disclosed by the invention, ferric oxide, aluminum oxide and silicon oxide in the red mud waste are effectively utilized to prepare the polysilicate ferro-aluminum sulfate composite flocculant; not only are the problems that the waste red mud occupies a lot of land and pollutes underground water are solved, but also the waste red mud can be resourcefully utilized, production cost is low, added value of products is high, and a novel way for comprehensively utilizing the red mud waste is provided.

Provided is an apparatus for producing reclaimed water based on electrolysis and double membrane technologies. The apparatus is disposed with an electrolysis system, an MBR system and a reverse osmosis system. Further provided is a method for producing reclaimed water using the apparatus, comprising the following steps: retrieving biochemical sewage through a water pump (12) and inputting the biochemical sewage into an electrolysis apparatus (13) of the electrolysis system to be electrolyzed, then enabling the sewage to enter an MBR reaction tank (26) through a grid (22) to obtain primary reclaimed water, pumping the primary reclaimed water into the reverse osmosis system with a high pressure pump (45) to separate dialysis water and concentrated water, enabling the dialysis water to enter a reclaimed water storage tank (48) to obtain ultrapure reclaimed water, enabling a part of the concentrated water to flow back for cyclic membrane filtering and separation, enabling a part of the concentrated water to flow back to enter an electrolysis procedure for cyclic use, and discharging the rest part of the concentrated water.

The invention discloses decoloring carclazyte produced from ledikite and turface mixed layer clay as well as a production method and application of the decoloring carclazyte. The inventor selects and uses the novel material (namely the ledikite and turface mixed layer clay) as the main raw material and respectively adopts a dry process and a wet process to carry out appropriate physical and chemical treatments of the ledikite and turface mixed layer clay to prepare the decoloring carclazyte which can be used as a decolorizing agent. The product is low in production cost, simple in production technology and free of acid waste water pollution in production process, ensures clean and beautiful production environment, has high adsorptive capacity and good decoloring effect, is a new source for high-quality and excellent decolorizing agent products, and can be widely applied to the fields such as grease, chemicals engineering and environmental protection.