Polymeric aluminum sulfate efficient: PAFS composite-type polymers, the molecular structure of a large, strong adsorption capacity, water is better than all conventional inorganic purifying agent. Fast: floc formed after the raw water into a large, sedimentation speed, high activity, good filtration. Adaptability: strong adaptability to a variety of raw water, minimal impact on water PH value (PH value 4-11). Regardless of the level of the raw water turbidity, wastewater pollutant concentrations size, its purification effect is significant. With less: for equipment, piping corrosion, easy operation, small dosage, low cost purification. Similar water treatment products currently on the market mainly by the widespread use of aluminum-and iron-based categories, namely, aluminum chloride, aluminum sulfate, ferric sulfate, ferric chloride polymerization. Compared with these traditional water treatment products, the amount of PAFS when used can significantly reduce the cost of inputs is reduced. Especially for low turbidity and high water turbidity and discoloration serious changes can be difficult to reach existing Purifying water problem can not be solved purification requirements. While improving processing efficiency and reduce the costs of processing water after treatment has been a corresponding increase. Meanwhile, PAFS in complex organic polymer flocculant effect better than the traditional use of water treatment products. PAFS with the combined use of organic polymer flocculant, not only the amount reduced by the amount of sludge and sedimentation of large particles, cohesion speed, higher pollutant removal, the remaining suspended solids and total phosphorus are relatively reduced. With aluminum sulfate, chloride, compared PAFS floc formation is relatively fast, large particle precipitation, settlement rate, the amount invested in the same situation, COD removal efficiency was significantly higher than that of aluminum sulfate. Meanwhile, PAFS coagulation significantly better than aluminum sulfate, aluminum chloride. Compared with the PAC, in the same water conditions, with less. The average consumption of PAFS dose equivalent to about 50% of the PAC. PAFS floc formation of large, dense, fast sedimentation degree of turbidity removal with good results. Meanwhile, PAFS little effect on PH. Compared with PFS, PAFS bleaching ability. Turbidity is strong. And without much resistance. Severe changes in water quality for low turbidity and high turbidity and discoloration hard water problems can not be solved to achieve PFS purification requirements. Second, the scope of application: clean drinking water, water purification after reaching the state's drinking water standards can be widely used in industrial and urban sewage water, treated water index up to an emission standard: clean paper, printing and dyeing industry wastewater, with less bleaching effect, the treated water can be reused. Purify wastewater treatment lead, chromium, cadmium, sulfur, etc., sewage, treated water can meet emission standards. Purification flotation tailings overflow red water, industrial water treatment water can do. The fluorine-containing raw water purification, wastewater, oil field injection water and kerosene oil-water separation plant, with its purifying effects are more significant. Third, the product use: 1, solid dosage according to usage, by 5-15 fold dilution. 2, the dosage can be muddy depending on the degree of the raw water, determine the optimal dosage is generally turbid (turbidity at 100-500mg / L) of water, the FDA 10-20 kilograms per thousand, non-potable industrial wastewater high turbidity may be appropriate dosage. I. papermaking industrial aluminum sulfate technical indicators Item Index Top grade First grade Qualified alumina AL2O3% ≥ 17.0 15.80 15.60 Iron (Fe)% ≤ 0.20 0.40 0.50 Water insoluble% ≤ 0.10 0.20 0.20 PH value ≥ 3.0 3.0 3.0 Second, water treatment agent aluminum sulfate technical indicators Item Index First grade Qualified solid aluminum AL2O3% ≥ 15.6 15.6 Iron (Fe)% ≤ 0.5 0.7 Water insoluble% ≤ 0.2 0.2 PH value ≥ 3.0 3.0 Arsenic (AS)% ≤ 0.0005 0.0005 Heavy metal (Pb)% ≤ 0.002 0.002