56results about How to "High floc strength" patented technology

The invention relates to the technical field of wastewater treatment, and particularly relates to a dyeing wastewater treatment agent and a preparation method thereof. The dyeing wastewater treatment agent comprises the following raw materials in parts by weight: 2-10 parts of ferrous sulfate, 20-30 parts of magnesium sulfate, 0.5-2 parts of polyacrylamide, 10-20 parts of iron nitrate, 1-5 parts of nickel nitrate, 40-60 parts of polyaluminum chloride, 10-20 parts of modified kieselguhr, 8-22 parts of meerschaum powder, 10-20 parts of crosslinked rectorite, 5-10 parts of chitosan-graphene composite material and 1-3 parts of graphene nano layer / MnO2 compound. The dyeing wastewater treatment agent provided by the invention has the advantages of convenient production method, low investment, quick effect taking and no secondary pollution.

The invention relates to a granular sustained release composite flocculant comprising a polyarylamide coated by a soluble coating material, the residual are aluminum salt and ferric salt. The components according to the weight percentage are as follows: aluminum salt 40%-60%, ferric salt 15%-30%, polyacrylamide 0.1%-10% and soluble coating material 1%-5%. The flocculant of the invention integrates the characteristic of both inorganic and organic flocculants, improves the dosing mode of the medicament, increases the action efficiency of each flocculant by using the process of multistep dissolution sustained release and improves the efficiency of the medicament.

The invention relates to a granular compound flocculant for water treatment compositely comprising a bilayer or multilayer flocculant. The components according to the weight percentage are as follows: aluminum salt 40%-60%, ferric salt 15%-30%, polyacrylamide 0.5%-10% and starch 1%-15%. The flocculant of the invention integrates the characteristic of both inorganic and organic flocculants, improves the dosing mode of the medicament, increases the action efficiency of the medicament by using the multilayer sustained release structure and improves the efficiency of the medicament.

The invention discloses a grease sewage treatment agent and belongs to the technical field of sewage treatment agent preparation. The grease sewage treatment agent comprises the following raw materials in parts by weight: 40 to 80 parts of enzyme preparation, 40 to 80 parts of demulsifier, 30 to 60 parts of flocculant, 30 to 60 parts of coagulant aids, 30 to 60 parts of foaming agent, 20 to 50 parts of flotation agent, 20 to 50 parts of bactericide, 10 to 20 parts of corrosion inhibition antisludging agent and 10 to 20 parts of deoxidant. The grease sewage treatment agent disclosed by the invention has the beneficial effects that existence forms of water-in-oil and oil-in-water in water can be broken to rapidly remove a large amount of SS (suspended solid), grease and COD (chemical oxygen demand); the grease sewage treatment agent is high in efficiency and has no corrosivity; secondary pollution cannot be caused to sewage in later stage, and the treatment cost is reduced.

A preparation method of hydrophobic modified cationic polyacrylamide flocculant comprises the following steps: weighing and mixing acrylamide, acryloyloxyethyl trimethyl ammonium chloride, butyl acrylate, perfluorinated octyl ethyl acrylate and a surfactant, obtaining polymer monomer aqueous solution by adding deionized water and mixing well by stirring, and then adding a plurality of additives; adding a compound initiator for polymerization and then adding a photoinitiator for polymerization; after the polymerization reaction, taking out colloidal particles for prilling, drying, crushing, and sifting, so that the hydrophobic modified cationic polyacrylamide flocculant is obtained. The flocculant provided by the present invention is able to improve the adsorption capacity of polymers to suspended particles, especially organic matters in water, by introducing lyophobic group into the macromolecule of the flocculant. Meanwhile, the flocculant possesses the properties of hydrophobic associating polymer, which is beneficial to the interaction between macromolecules, reducing the hydrophilic performance of the floc body, increasing the settling velocity of the floc body, and improving intensity of the flocs and water separation capability of the filter cake.

The invention provides a sludge deep dehydration method comprising the following steps: adding 1-10%, based on the dry weight of sludge slurry, of a free radical production into the sludge slurry, and stirring to mix; adding a transition metal salt activator, a magnesium salt activator and / or an aluminum salt activator to the sludge slurry containing the free radical production, carrying out an activation reaction to form active free radicals, and treating by the active free radicals to obtain a conditioned sludge slurry; and dehydrating the conditioned sludge slurry. Through the sludge deep dehydration method, the active free radicals are produced by reacting the transition metal salt, the magnesium salt and / or the aluminum salt and the like with the free radical production, on one hand, can effectively destroy sludge extracellular polymeric substances, alter surface properties of sludge particles, improve the filtration performance of the sludge, and reduce the sludge bound water content; on the other hand, the active free radicals can active ions produced after the completion of the reaction, can be combined with sludge particles, can improve the strength of sludge flocs, are favorable to the sludge dehydration process, so as to realize the sludge deep dehydration.

The present invention discloses one kind of Z's nanometer efficient sewage dewatering amendment. The Z's nanometer efficient sewage dewatering amendment consists of polymerized ferric sulfate 85-98 weight portions, polyacrylamide 0.5-6 weight portions, hydroxymethyl cellulose sodium 0.5-6 weight portions and nanometer material 0.5-3 weight portions. The present invention has powerful neutralizing capacity, bridging capacity and permeating capacity and thus has high sewage dewatering effect.

A Z's nano-coagulant for swimming pool contains aluminium sulfate, iron polysulfate, ferrous sulfate, polyacrylamide and nano material (TiO2, ZnO, or SiO2) proportionally. Its advantages are high coagulating effect, and low dosage.

The present invention relates to environment protection technology. The sewage treating agent contains Al iron, Fe ion, Mg iron, Mn ion and lithopone, and is compounded by mixing water, aluminium sulfate, ferric sulfate, magnesium sulfate, manganese sulfate and lithopone through stirring for complete dissolving. It has the advantages of wide use range, high deposit rate, good quality of treated water, low cost, no corrosion to steel structure, no toxicity, no pollution and relatively high safety, and it may be widely used for effluent treatment in oil field, coal mine, textile mill, printing and dyeing mill, etc. and city sewage treatment.

The invention discloses a novel high-efficiency environment-friendly coagulating agent used for treating turbid water or polluted water. The coagulating agent comprises the components of, by weight: 10-30% of bauxite, 20-40% of fly ash, 20-60% of lime, 3-8% of zeolite, 1-5% of citric acid, and 1-5% of cement. The invention also relates to the application of the high-efficiency environment-friendly coagulating agent in treating turbid water or polluted water. The coagulating agent provided by the invention is economical and environment-friendly, and has the advantages of rich component source and low cost. An agent dose is low, wherein the dose is 3-5% of the dry weight of sludge in the turbid water or polluted water. The influence on water body pH value is low, such that the original property of the sludge in the water is not changed. Part of active heavy metal is solidified, such that activity of sludge in water can be increased, and water body self-cleaning capacity can be greatly improved. Multiple functions such as absorption, condensation, chelation, curing, ion exchange, and the like are integrated. A treatment effect is good. Water body after flocculation and sedimentation is clear and transparent, and has no odor.

The invention discloses a method for preparing attapulgite adsorbent particles and relates to the technical field of processing of attapulgite. The method comprises the following steps: (1) purifying the attapulgite; (2) carrying out first-time modification on the attapulgite; (3) carrying out second-time modification on the attapulgite; (4) carrying out high-temperature calcination; (5) preparing a functional aqua; (6) preparing a surfactant solution; and (7) carrying out mixing. According to the method, the process is simple and does not cause secondary pollution, and the prepared attapulgite adsorbent particles have the characteristics of large particle size, good adsorption performance and high strength.

The invention discloses a treating agent for heavy metal waste water and a preparation method and application thereof. The treating agent is prepared from the following raw materials in parts by weight: 30-40 parts of lignin, 19-27 parts of chitosan, 11-19 parts of polystyrolsulfon acid, 13-21 parts of polyethylene glycol, 5-12 parts of 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and 1-5 parts of ethylene-bis-stearamide. According to the preparation method, the lignin is treated with the polystyrolsulfon acid, the chitosan is treated with the polyethylene glycol, then the treating agent is prepared by ultrasonic treatment and high-temperature calcination from the 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate and ethylene-bis-stearamide, therefore a synergetic effect is played, multiple kinds of metal ions in a water body can be captured, simultaneously the treating agent has notable corrosion inhibition and antiprecipitation effects, and the production cost is reduced; the treating agent has stable performance, good quality of effluent water, low level of addition for treatment and low treatment cost; and the treated waste water can achieve an effluent standard. The treating agent disclosed by the invention has the advantages of no toxicity, no secondary pollution of water after treatment, convenience in recovery, simple manufacturing process, easy operation and suitability for industrialized production.

The invention discloses an organic / inorganic hybridized cation reverse demulsifier, a preparation method and an application thereof. The preparation method for the organic / inorganic hybridized cationreverse demulsifier comprises the following steps: 1) adopting a silane coupling agent for modifying the surface hydroxyl group on nanometer SiO2, thereby acquiring modified nanometer SiO2, and then connecting a terminal on the modified nanometer SiO2 surface with a carbon-carbon double bond; 2) trigging ternary polymerization reaction of the modified nanometer SiO2, acrylamide and dimethyl diallyl ammonium chloride, thereby acquiring an end product. According to the invention, the silane coupling agent containing an unsaturated double bond is adopted for modifying nanometer SiO2, so that themodified nanometer SiO2 has a certain hydrophobicity and has an unsaturated carbon-carbon double bond on the terminal; a lyophobic hard-shell hydrophilic soft-shell netted structure can be formed through the ternary polymerization of the modified SiO2, AM and DMDAAC; the structure is capable of effectively increasing electric charge density and is capable of realizing effective demulsification onthe basis of guaranteeing low cation degree; a demulsifier to be matched with the reverse demulsifier is in a nonionic form, so that the formed floc strength is low and the de-oiling rate is high.

The invention belongs to the sewage treatment field, and especially relates to a water treatment composite flocculating agent and an application thereof. The flocculating agent is obtained by compounding a plurality of flocculating agents, and comprises 70-89wt% of polyaluminum chloride, 10-30wt% of an aluminum salt and 0.1-2wt% of an iron salt. The composite flocculating agent has the large strength characteristic of an inorganic flocculating agent, also has the bridge formation, network bashing, strong sweeping capability and large floc of an organic flocculating agent, and overcomes the disadvantages of low floc strength and large consumption of organic flocculating agents.

The invention provides a chemical adsorbent for processing heavy metal waste water. The Chemical adsorbent for processing heavy metal waste water comprises the following components in parts by mass: 5to 25 parts of calcium oxide, 15 to 40 parts of an inorganic polymer flocculant, 1 to 25 parts of sulfur-containing iron powder, 3 to 30 parts of sodium percarbonate, and 1 to 10 parts of an organicpolymer flocculant. The adsorbent of the invention is simple to use and operate, the conditions are easy to control, the dosage of the medicament is small, and the sedimentation speed is fast.

The invention discloses a sewage treatment agent for an oil production plant, belonging to the technical field of preparation of the sewage treatment agent. The sewage treatment agent for the oil production plant is prepared from the following raw materials in parts by weight: 40 to 80 parts of demulsifier, 30 to 60 parts of flocculant, 30 to 60 parts of foaming agent, 20 to 50 parts of flotation agent, 15 to 35 parts of fungicide, 10 to 20 parts of slow rot scale inhibitor, and 10 to 20 parts of deoxidant. The treatment agent provided by the invention for the oil production plant has the advantages of high deposition rate, good effluent quality, low treatment cost, no corrosive effect, nontoxicity, no pollution, safety in use, and the like; after oil production plant sewage is treated by adopting the treatment agent provided by the invention, the pH value basically reaches neutral pH, the SS removing rate can reach 99.09% to 99.27%, the COD removing rate can reach 99.02% to 99.11%, and the oil removing rate can reach 99.04% to 99.12%.

The invention discloses an organic sewage treatment agent and belongs to the technical field of sewage treatment agent preparation. The organic sewage treatment agent comprises the following raw materials in parts by weight: 20 to 40 parts of whole-cell lipase, 10 to 20 parts of cellulose, 10 to 20 parts of fatty alcohol-polyoxyethylene ether, 8 to 16 parts of sec-Nonylphenol Ethoxylates, 6 to 12 parts of epoxypropane, 10 to 16 parts of aluminum sulfate, 8 to 14 parts of alums, 8 to 16 parts of alkyl-sodium proparesulfonic acid, 4 to 10 parts of hexadecyltrimethyl ammonium nitrate, 6 to 20 parts of dimethyl-bi-dodecyl ammonium nitrate, 2 to 4 parts of ammonium hydrogen sulfite and 2 to 4 parts of hydrazine. The organic sewage treatment agent disclosed by the invention is capable of rapidly removing SS (suspended solid), grease and COD (chemical oxygen demand); the organic sewage treatment agent is high in efficiency and has no corrosivity; the removal rate reaches more than 9 percent, and secondary pollution cannot be caused to sewage in later stage.

The invention relates to a heavy metal-containing wastewater treatment chemical. The wastewater treatment chemical is prepared by mixing barium sulfide, ferric sulfate, poly-silicon aluminum sulfate and a few calcium hydroxide and lithopone, wherein barium sulfide accounts for 30-40 parts by weight, ferric sulfate accounts for 20-30 parts by weight, poly-silicon aluminum sulfate accounts for 20-40 parts by weight, calcium hydroxide accounts for 5 parts by weight and lithopone accounts for 5 parts by weight. The chemical has a wide range of application and has high universality. The wastewater treatment chemical has a good effect of treating industrial wastewater of metallurgy, heavy metal, mine, printing and dyeing, spinning, building, casting, chemical, electric power, leather and papermaking, etc. as well as municipal composite wastewater. The chemical has a wide range of pH for water and has purifying effects at pH 4-10. The chemical has good sedimentation efficiency and good water purification quality and is non-corrosive. The pH value of a solution treated by the use of the chemical is 6.5-8.5 and is close to neutral. The solution contains no chloride ion. A steel structure in a water system can effectively be protected during recycling so as to protect the steel structure from being corroded. Thus, a large amount of equipment maintenance cost can be minimized annually.

The invention provides a sludge deep dehydration method comprising the following steps: adding 1-10%, based on the dry weight of sludge slurry, of a free radical production into the sludge slurry, and stirring to mix; adding a transition metal salt activator, a magnesium salt activator and / or an aluminum salt activator to the sludge slurry containing the free radical production, carrying out an activation reaction to form active free radicals, and treating by the active free radicals to obtain a conditioned sludge slurry; and dehydrating the conditioned sludge slurry. Through the sludge deep dehydration method, the active free radicals are produced by reacting the transition metal salt, the magnesium salt and / or the aluminum salt and the like with the free radical production, on one hand, can effectively destroy sludge extracellular polymeric substances, alter surface properties of sludge particles, improve the filtration performance of the sludge, and reduce the sludge bound water content; on the other hand, the active free radicals can active ions produced after the completion of the reaction, can be combined with sludge particles, can improve the strength of sludge flocs, are favorable to the sludge dehydration process, so as to realize the sludge deep dehydration.

The invention discloses a heavy metal sewage treatment agent and a preparation method thereof. The heavy metal sewage treatment agent is prepared from the following components in parts by weight: 15-25 parts of sodium polyacrylate, 10-30 parts of aluminum sulfate, 10-15 parts of ferric chloride, 20-25 parts of active sludge, 5-10 parts of tea leaves, 5-10 parts of sodium alginate, 1-3 parts of plant ash and 70-200 parts of deionized water. The heavy metal sewage treatment agent has excellent removal rate and high treatment efficiency for various metal ions in heavy metal sewage, has stable performance, good precipitation effect, good effluent water quality and simple treatment method and is low in treatment cost. The heavy metal sewage treatment agent has high purity, no toxicity and no influence on operators, and cannot cause biological pollution or secondary pollution.

The invention discloses a cassava-dreg-based printing and dyeing wastewater treatment agent, which is prepared from the following components in parts by weight: 80 to 120 parts of cassava dreg, 20 to 30 parts of activated carbon, 30 to 50 parts of kaolin, 20 to 30 parts of lime, 1 to 5 parts of barium salt, 10 to 15 parts of silica gel, 20 to 30 parts of polyalumina, 10 to 15 parts of calcium sulfite, 5 to 10 parts of sodium polyacrylate and 1 to 5 parts of 2-sucrose acrylate. The cassava-dreg-based printing and dyeing wastewater treatment agent is wide in pollutant treatment range, low in cost, stable in performance and high in effluent quality, and has good effects and precipitation effects; after the agent is added into sewage, suspended matters are immediately flocculated and rapidly precipitated, the treated sewage can reach a discharge standard, and the agent is high in agglomeration intensity and hydrophobicity.

The invention relates to a novel sewage treatment agent, which contains polyferric trichloride, potassium persulfate, aluminum sulfate, polyacrylamide, polyethyleneimine and bentonite, i.e. 20 to 30 percent by weight of polyferric trichloride, 15 to 25 percent by weight of potassium persulfate, 5 to 15 percent by weight of aluminum sulfate, 20 to 35 percent by weight of polyacrylamide, 10 to 25 percent by weight of polyethyleneimine and the balance of water. For the waste water of oil production plants, the novel sewage treatment agent has a good precipitation effect, and the effluent quality is good; the treatment cost is low, and the novel sewage treatment agent is applicable to oily sewage of the oil production plants. After the agent is added into sewage, suspended matters immediately flocculate; produced flocs are big; the precipitation is rapid; the efficiency is high; the flocs have high strength and good hydrophobic property, which are favorable for filter pressing, and the novel sewage treatment agent is high in purity, and does not have impurities and dust.

The present invention relates to a treatment method for alcohol-containing wastewater, in particular to a treatment method for alcohol-containing wastewater produced after deicing of an airport by a deicing fluid. Before a film is adopted to carry out separation treatment on the alcohol-containing wastewater, a flocculant is used to carry out flocculation and precipitation pretreatment on the alcohol-containing wastewater, wherein the flocculant is composed of an inorganic polymeric flocculant, an aqueous solution of which is acidic, and an organic polymeric flocculant, an aqueous solution of which is alkaline. According to the treatment method for the alcohol-containing wastewater, impurity contamination caused by pH value adjustment in an alcohol-containing wastewater flocculation treatment process is reduced; the flocculation effect is good; film separation equipment is maintained to operate stably at a high utilization rate, and the flocculant can be recycled.

The invention relates to the technical field of wastewater treatment, and particularly relates to a dyeing wastewater treatment agent and a preparation method thereof. The dyeing wastewater treatment agent comprises the following raw materials in parts by weight: 2-10 parts of ferrous sulfate, 20-30 parts of magnesium sulfate, 0.5-2 parts of polyacrylamide, 10-20 parts of iron nitrate, 1-5 parts of nickel nitrate, 40-60 parts of polyaluminum chloride, 10-20 parts of modified kieselguhr, 8-22 parts of meerschaum powder, 10-20 parts of crosslinked rectorite, 5-10 parts of chitosan-graphene composite material and 1-3 parts of graphene nano layer / MnO2 compound. The dyeing wastewater treatment agent provided by the invention has the advantages of convenient production method, low investment, quick effect taking and no secondary pollution.

The invention discloses a sewage treatment agent, which is prepared from the following raw materials: organic carboxylic acid, modified sisal fiber porous microspheres, polyamino acid, starch xanthateand aminotris(methylenephosphonic acid). A preparation method of the sewage treatment agent comprises the following steps: preparing the modified sisal fiber porous microspheres; adding organic carboxylic acid and polyamino acid into the citric acid modified sisal fiber crosslinked chitosan porous microspheres, fully and uniformly mixing, adding the starch xanthate and the aminotris(methylenephosphonic acid), and fully and uniformly mixing again to obtain the sewage treatment agent. According to the sewage treatment agent disclosed by the invention, through compounding of the raw materials, asynergistic effect is achieved, various metal ions in a water body can be captured, and meanwhile, the sewage treatment agent also has remarkable corrosion and scale inhibition effects, so that scaling and corrosion of a system can be effectively reduced, and the production cost is reduced; the treated sewage can reach the discharge standard, the flocculation strength is high, and the hydrophobicproperty is good; and the treated water has no problems of secondary pollution and the like.

The invention provides a preparation method of a heavy metal sewage treatment medicament. The preparation method comprises the following steps: preparing raw materials including barium sulfide, ferric sulfate, polymeric silicate aluminum sulfate, calcium hydroxide and lithopone; adding barium sulfide, ferric sulfate and polymeric silicate aluminum sulfate into a reactor; stirring and heating to 120 DEG C, and carrying out backflow for 6-9 hours while maintaining the reaction temperature at 110-130 DEG C; adding water to dilute calcium hydroxide, and adequately stirring the solution with dried jelly; carrying out boiling reaction at 100 DEG C, so as to prepare a mother solution; filtering the mother solution after the reaction to obtain filtrate for later use, and recycling filter residues; cooling the mother solution at the room temperature, adding lithopone into the reactor, uniformly stirring until initial condensation; heating at 60-80 DEG C for 1-3 hours, stirring for 15 minutes, and using at 5-50 DEG C. The heavy metal sewage treatment medicament is wide in application range, good in sedimentation effect, water purification quality, dehydration property, compression property and effluent quality and low in treatment cost and can serve as a dehydration flocculant.

The invention discloses a sludge concentration dehydrating agent and a preparation method thereof, and belonging to the technical field of sludge treatment. The preparation method comprises the following steps of: modifying crop straw and wood powder, mixing cyclodextrin and diatomite with the modified crop straw and wood powder, adding water, boiling in boiling water for 10-15 min, extracting, collecting an extracted solid product, adding humic acid and volcanic rocks, magnetically stirring for 15-20 min, adding gelatin, heating, evaporating to obtain the sludge concentration dehydrating agent. The dosage of the sludge concentration dehydrating agent is only 0.02-0.03%, the deep dehydration of sludge can be realized while the sludge dehydration time is reduced, one ton of sludge with a water content of 60-99% can be directly dehydrated within 30 minutes to the water content reaching 20-35%, and the subsequent treatment of the sludge can be greatly facilitated.

The invention discloses a cassava-dreg-based printing and dyeing wastewater treatment agent, which is prepared from the following components in parts by weight: 80 to 120 parts of cassava dreg, 20 to 30 parts of activated carbon, 30 to 50 parts of kaolin, 20 to 30 parts of lime, 1 to 5 parts of barium salt, 10 to 15 parts of silica gel, 20 to 30 parts of polyalumina, 10 to 15 parts of calcium sulfite, 5 to 10 parts of sodium polyacrylate and 1 to 5 parts of 2-sucrose acrylate. The cassava-dreg-based printing and dyeing wastewater treatment agent is wide in pollutant treatment range, low in cost, stable in performance and high in effluent quality, and has good effects and precipitation effects; after the agent is added into sewage, suspended matters are immediately flocculated and rapidly precipitated, the treated sewage can reach a discharge standard, and the agent is high in agglomeration intensity and hydrophobicity.