45results about How to "Big alum" patented technology

The invention relates to a high efficiency water treatment flocculant for drinking water and water treatment comprising a metal cation flocculant which is characterized in that the high efficiency water treatment flocculant also comprises a high efficiency adsorption component and an assistant medicament to be remixed, inwhich the weight ratio is: the high efficiency adsorption component 5-15%, the metal cation flocculant 50-85%, the assistant medicament 5-15%. The obvious characteristics of the invention are that each component can play the advantages of high intensity of the flocs of the inorganic flocculant and large flocs of the polymeric flocculant, overcomes the drawback of small flocs of the inorganic flocculant and low intensity of the flocs of the organic flocculant. The existence of the high adsorption component plays the action of adsorption of the organic compounds and heavy metal ion which are difficult to flocculat and precipitate, also plays the role of aid-coagulation, decoloration and deflavour. Thus the flocculant of the invention has advantages of good coagulation effect, large alum blossom, rapid settling velocity, good effluent quality and few dosage or the like.

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 composite powered calcium sulfate sewage treatment agent and a method for preparing the same. The sewage treatment agent comprises the following materials in weight portion: 5 to 10 portions of tartaric acid, 3 to 5 portions of malic acid, 60 to 70 portions of calcium sulfate, 10 to 15 portions of magnesium carbonate, 10 to 20 positions of calcium carbonate, 10 to 20 portions of ferric chloride, 10 to 20 portions of calcium oxide and 2 to 3 portions of polyacrylamide. The method is to mix the materials. Compared with the prior art, the sewage treatment agent and the method have the advantages of multifunction, high efficiency, environment protection, quick sewage treatment speed, short treatment time, broad-spectrum and high-efficiency removal of various pollutants and harmful substances and strong adaptively to the sewage muddiness, wide pH value range and wide water temperature change of the sewage. The sewage treatment agent and the method have high alkalization degree, small corrosion, convenient production and no pollution in the production process, simple product package, convenient transportation and low composite cost.

The invention discloses an attapulgite carrier flocculation treatment agent and a production method and aims at providing a water treatment agent which is safe and nontoxic, has large alumen ustum, is rapid to settle and separate and has low operation cost and a production method. The technical scheme of the invention comprises the following points that the attapulgite carrier flocculation water treatment agent is designed by a carrier flocculation technical idea, wherein ferric salt is used as a main coagulant and attapulgite is used as a carrier. The ferric iron coagulant is processed by an oxidation synthesis process and is simultaneously activated and modified under an acidic condition, and the attapulgite and related auxiliaries are added into the activated and modified ferric iron coagulant to be compounded so as to obtain a liquid water purification agent product. The attapulgite carrier flocculation water treatment agent and the production method have the characteristics that the attapulgite carrier flocculation water treatment agent does not contain aluminum ions and has low environmental risk and meets the development direction of a water treatment medicament; due to the adoption of the carrier flocculation idea, the alumen ustum settling speed is optimized and the pH adaptability is also obviously improved; by the attapulgite carrier flocculation water treatment agent, algae is effectively removed and no algae toxins are generated; sludge is easy to process; and the attapulgite carrier flocculation water treatment agent and the production method can be widely used in the field of water supply and drainage engineering and algae removal in the water environment.

The invention relates to a preparation method and application of a polyferric silicate coagulant. According to the method, a ferrous salt and a specific functional metal salt are used as raw materials; the ferrous salt and the specific functional metal salt are dissolved in an inorganic acid solution, so as to prepare an acidic ferric salt solution; mixed liquor B is obtained by adding a stabilizer A of a weak acid, a weak alkali, a strong alkali-weak acid salt, a strong acid-weak alkali salt or a weak acid-weak alkali salt; the mixed liquor B is mixed and reacted with activated silicic acid into which a surfactant stabilizer C is added, so as to prepare and obtain the high-efficiency polyferric silicate coagulant. The coagulant can be used for the treatment of wastewater containing heavy oil. The preparation method is simple in process, low in cost and low in requirements on reaction equipment; the obtained coagulant can be widely used in the process of the treatment of the wastewater containing the heavy oil, and has the advantages of a good coagulation effect, a high oil removal rate, a quick reaction speed, a quick sedimentation rate and high COD (Chemical Oxygen Demand) removal rate and turbidity removal rate, high activity and the like; the treated wastewater containing oil completely meets requirements in the Integrated Wastewater Discharge Standard GB8978-96.

The invention discloses a composite inorganic high-molecular waste water treatment flocculant which is composed of following raw materials, by mass: 40-70% of polyaluminium ferric sulfate, 2-10% of magnesium sulfate, 5-10% of cationic starch, 4-15% of calcium hydroxide, 0.5-3% of activated charcoal, 2-10% of sodium carbonate and 5-15% of polyacrylamide. The flocculant is broad in spectrum, is low-toxic, is low-cost in the raw materials, is good in treatment effects, is simple in operation, is wide in available range, and can form the floc being good in filterability. The flocculant can effectively treats oil-containing waste water, coking wastewater and such industrial waste water, can protect ecologic environment, is less in use amount, can form large alumen ustum, is high in sedimentation speed, is high in removal rate of COD, is less in sludge, is strong in adsorbability on pollutants and is strong in neutralization capacity on micro-acidic waste water.

The invention provides a method for producing a coagulant aid through utilizing sheep manure. According to the method, the sheep manure is utilized as a main raw material, and the sheep manure is subjected to a series of processing to obtain the coagulant aid which can be used for wastewater treatment. The method has the characteristics that the selected material is environment-friendly and waste recovery is realized.

The production process of solid composite ferric sulfate polymer includes the following technological steps: the reaction of sulfuric acid cinder, water and concentrated sulfuric acid in certain weight proportion inside a reactor in temperature 100-150 deg.c and pressure not higher than 0.5 MPa for 3.0-5.0 hr; adding additive in certain amount to react for further 20-60 min; cooling to below 80 deg.c, puffing, solidifying, drying and crushing to obtain the product. The present invention obtain solid ferric sulfate polymer product in a short process, and the product may be used in water treatment for pre-treatment, decolorizing, deodorizing, eliminating COD, heavy metal and algae and in treatment of various kinds of waste water. It has obvious treating effect and fast deposition.

The invention relates to a modified and high-efficiency multi-function decolorizer of titanium dioxide acid hydrolysis waste residue and a preparation method thereof. Acid hydrolysis waste residue containing titanium sulfate is successively and respectively added with sodium hydroxide, peroxide, waste acid and calcium and magnesium powder according to the weight rate of the materials, therefore, the acid hydrolysis waste residue containing titanium sulfate generates nanometer titanium dioxide by nutralization, hydrolysis and acidification; added ferrous iron and iron in the acid hydrolysis waste residue are dehydrated at the temperature of 100-200 DEG C, oxidized at the temperature of 400-500 DEG C and then generate polymerization ferrous sulfate after natural cooling, telomerization and aging. The organic pollutants in wastewater are rapidly degraded by nano TiO2 and directly converted into non-toxic and harmless CO2, H2O and inorganic matters. Without changing the pH value of original sewage, the coagulation speed is fast, alumen ustum is big, settlement is quick, and the decolorizer has the functions of decolorization, degerming, removing radioactive elements and heavy metal ions, reducing COD and BOD, small feeding amount and strong adaptability.

The invention discloses a preparation method of polymeric ferric silicate sulfate, which includes the steps of the preparation of ferric sulfate solution, the preparation of polysilicic acid, and the preparation technology of polymeric ferric silicate sulfate. Iron ore is used as the raw material to prepare a new generation of good quality water purifying agent polymeric ferric silicate sulfate which is a composite inorganic polymeric flocculant that has the characteristics of malysites and silicates and has the advantages of strong coagulability, large alum floc, and quick sedimentation, so the composite inorganic polymeric flocculant is in particular suitable for the treatment of gas field water, and has better water purification property and wide application range. The flocculant of the invention is added in the gas field water in the east of Sichuan, the better flocculating effect is achieved. The preparation method of the invention not only provides a feasible path for the comprehensive utilization of the iron ore, but also provides a technological route with low raw material for the flocculant production, thereby the purpose of treating the waste by the waste is achieved, and better economic benefit, social benefit, and environmental benefit are obtained.

The invention provides a method for producing a coagulant aid through utilizing winter bamboo shoot skins. According to the method, the winter bamboo shoot skins are utilized as a main raw material, and the winter bamboo shoot skins are subjected to a series of processing to obtain the coagulant aid for sewage treatment. The method has the characteristics that selected material is environment-friendly and waste utilization is realized.

The invention provides a method for producing a coagulant aid through utilizing cow dung. According to the method, the cow dung is utilized as a main raw material, and the cow dung is subjected to a series of processing to obtain the coagulant aid which can be used for wastewater treatment. The method has the characteristics that the selected material is environment-friendly and waste recovery is realized.

The invention discloses a purification treatment process for waste plastic washing wastewater. The purification treatment process comprises a step of flocculating sedimentation, wherein the step of flocculating sedimentation comprises the step of primary flocculating sedimentation. By adopting an above-mentioned scheme, the purification treatment process provided by the invention can completely transform wastewater into circulating water and fuel used for production, and has low cost, fast wastewater purification speed and good purification effect.

The invention provides a mixed type foundry waste sand wet reclamation wastewater processing method. Firstly, wastewater is demulsified, and large suspended matters in the wastewater are flocculated in a spiral flocculating tank by virtue of an inorganic flocculating agent; then small suspended matters are flocculated by virtue of an organic flocculating agent; through standing sedimentation in an inclined tube sedimentation tank, a flocculation layer forming at the bottom in a condensed manner is extracted through a sludge pump at the bottom of the sedimentation tank; the organic flocculating agent is secondarily used, and finally, a band type concentration-vacuum-filter pressing all-in-one machine is used for treatment, so that the water content of sludge discharged at an outlet of a filter cake of the band type concentration-vacuum-filter pressing all-in-one machine is less than 40%; therefore, supernate overflowing from the inclined tube sedimentation tank and clear water from a clear water outlet of the band type concentration-vacuum-filter pressing all-in-one machine can achieve the requirement for production cycle water and the standard for direct discharge.

The invention discloses a composite water-treatment coagulant prepared from high-iron gibbsite and a preparation method thereof. The composite water-treatment coagulant is an aluminum chloride molten iron treatment coagulant, aluminum sulfate molten iron treatment coagulant or polyaluminum chloride molten iron treatment coagulant, which is respectively prepared from high-iron gibbsite, technical hydrochloric acid and water, or high-iron gibbsite, technical hydrochloric acid, water and calcium aluminate powder, or high-iron gibbsite, commercial sulfuric acid and water. The invention also discloses a preparation method of the composite water-treatment coagulant prepared from high-iron gibbsite. The composite water-treatment coagulant has the advantages of wide raw material sources, high iron content, high stability, wide water treatment range, favorable turbidity removal effect, simple preparation method, no need of roasting in the production process, no wastewater or waste gas emission and no environmental pollution.

The invention discloses a preparation method of plate frame type poly(aluminium chloride). The preparation method is characterized in that the plate frame type poly(aluminium chloride) is prepared from the following raw materials in parts by weight: 100 parts of 30 percent hydrochloride, 50-80 parts of bauxite and 30-50 parts of calcium aluminate powder, wherein in the bauxite, the content of aluminum oxide is not less than 30 percent, and the content of ferric oxide is not larger than 4 percent; in the calcium aluminate powder, the content of aluminum oxide is not less than 50 percent, the content of calcium oxide is 28-32 percent, and the content of ferric oxide is 1-2.5 percent. The preparation method of the plate frame type poly(aluminium chloride) comprises the following steps: diluting hydrochloride by 19-26 percent, putting the bauxite according to the proportion, raising the temperature by 40-80 DEG C, carrying out reaction for 10h, putting the calcium aluminate powder, carrying out reaction for 1.5-2h at the temperature of 60-90 DEG C, and carrying out pressure filtration with the pressure of a plate frame to be 10-20kg/mm<2> to obtain a finished product. The plate frame type poly(aluminium chloride) prepared by using the preparation method is low in cost, simple in process and stable in product quality without limitation in using range.

The invention belongs to the field of sewage treatment, and relates to a broad-spectrum composite ion flocculant for treating sewage and a preparation method thereof. It is characterized in that the composition range of the flocculant is: 20-30% of black liquor resin, 5% of NaOH, 10-20% of polyacrylamide with non-ionic molecular weight of 7 to 12 million, 20-30% of polyferrous chloride, sulfuric acid Aluminum 20-25%. The preparation steps are to add NaOH, water, black liquor resin, non-ionic polyacrylamide, powdered aluminum sulfate, and powdered polyferrous chloride to the electric heating reactor in sequence, stir until completely dissolved, and then add the whole solution to the drying oven After drying in the box, crush and filter through a 40-mesh filter to obtain the finished flocculant. The product of the invention has the advantages of fast sedimentation speed, wide application, high treatment efficiency, good effluent quality and low cost. The processing cost of the product is less than half of the processing cost of traditional polyacrylamide.

The invention discloses a modified straw polypropylene composite flocculant and a key production technology thereof. The modified straw polypropylene composite flocculant is composed of the following components in parts by weight: ultra-purified water, straw powder, polypropylene, disodium dodecanol sulfosuccinate, 2-methyl-N-[3-(trifluoromethyl) phenyl]propionamide, 1,4-bis[(2,6-diethyl-4-methylphenyl)amino]-9,10-anthraquinone, sodium 1-amino-4-mesitylene amino anthraquinone-2-sulfonate, 3,5-dihydroxyphenylmethanol, uranium nanoparticles, [3-(1-amino-2-bromo-4-amino anthraquinone)proyl]trimethy amino methyl sulfate, 2,2'-[1,2-ethylidene di(oxyl-2,1-phenylene azo)]bis[N-(2,3-dihydro-2-oxo-1H-benzimidazole)-5-yl]-3-oxo-butyrylamide, [4-[4-(acetamino)phenylamino]-1-amino-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid. The modified straw polypropylene composite flocculant disclosed by the invention has the advantages that addition quantity is low, and flocculated aggregated particles are dispersed and absorbed; reagent cost is low; alum blossom is large, application range is wide, and pH value range is wide; and formation time is short, precipitates are solid, and phosphorous removal effect is good.

The invention belongs to the technical field of sewage purification treatment materials, and particularly relates to a polyaluminum acetate-aluminum chloride copolymer-ferric chloride composite flocculant with dual functions of a flocculant and a carbon source, which can be used for purification treatment of natural water bodies, domestic sewage and industrial wastewater. The aluminum acetate-aluminum chloride copolymer-ferric chloride composite flocculant product is prepared by compounding a developed aluminum acetate-aluminum chloride copolymer and ferric chloride, and is prepared by controlling the ratio of the aluminum acetate-aluminum chloride copolymer to the ferric chloride, the ratio of the ferric chloride to an alkaline substance and the like. The aluminum acetate-aluminum chloride copolymer ferric chloride composite flocculant aqueous solution is applied to a biological treatment denitrification process, has double effects of nitrogen and carbon source removal and flocculation phosphorus removal, and has the characteristics of good turbidity reduction effect of an aluminum salt flocculant, high floc settling speed of an iron salt flocculant, easiness in separation and thelike as the flocculant.

The invention discloses a polysilicate iron/cationic starch composite flocculant and a preparation method thereof. According to the invention, titanium dioxide waste acid, cationic starch, a sodium silicate solution, lime milk, hydrogen peroxide and an alkali are used as raw materials, a polysilicate iron flocculant is prepared by using the titanium dioxide waste acid, and the polysilicate iron and the cationic starch are compounded through a copolymerization method to successfully prepare the polysilicate iron/cationic starch composite flocculant, wherein the prepared polysilicate iron/cationic starch composite flocculant has good adsorption and flocculation effects on the turbidity, the chromaticity removal rate, the COD, the total nitrogen and the total phosphorus of breeding wastewater; and the method is simple in process and low in cost, turns titanium dioxide waste acid into wealth, treats pollution of breeding wastewater, achieves the treatment of waste with waste, and providesa new way for resource utilization of titanium dioxide waste acid.