Discoloration of the dye wastewater with aluminum chloride and polyacrylamide most ideal for the dye effluent decolorization effect with aluminum chloride and polyacrylamide best ideal printing and dyeing or dye wastewater biochemical treatment of color is often difficult to achieve the standard, The use of polyaluminum chloride for deep decolorization treatment is better. Biological treatment of the dye wastewater color removal is generally only 50% to 60%; and physical and chemical methods coagulation sedimentation can reach 50% to 90%, generally for direct dyes, vat dyes, sulfur dyes, disperse dyes and colloidal substances All have better removal efficiency, the chroma removal rate can reach 80% ~ 90%, COD removal rate of up to 50% ~ 80%, but the acid dyes, reactive dyes, metal complex dyes and cationic dyes, the decolorization Poor results, generally only 50% to 60%. The current general use of polyaluminum chloride (PAC) as coagulant, polyaluminum chloride on the dye wastewater decolorization effect is good, when the dosage of 0.05%, the decolorization of the five types of dye good effect. Polyaluminum chloride on the suspension of suspended solids in the paint, vat dyes better decolorization efficiency, sulfur dyes, nafto dye followed, the water-soluble reactive dye bleaching less effective. In addition to increase the dosage of PAC, can improve the decolorization effect. For example, for printing and dyeing wastewater containing sulfur dyes and nafto dyes, when the polyaluminum chloride dosage increases to 0.08% and 0.1%, its decolorization efficiency will be correspondingly increased to 81% and 90% Processing costs also increased accordingly. At home many traditional dye wastewater treatment, but also useful basic aluminum chloride + polyacrylamide, also can play the role of water purification, but the filter water purification or for you to recommend polyaluminum chloride, after all, polymerization Aluminum chloride is an alternative to basic aluminum chloride. Although polymeric aluminum chloride works well for the decolorization of dye wastewater, it must be used with polyacrylamide. The effects of either agent alone are insignificant. Wastewater from textile printing and dyeing industry generally has a high chroma level. Generally speaking, the effect of decolorization on water treatment is decolorization effect. It is the dye discharge that can reach the national discharge standard so as not to pollute the environment. Aluminum manufacturers explain the use of polyaluminum chloride on the decolorization of dye wastewater today to here, as it's processing technology method we will be summarized in the next section, please need the timely attention of our customers dynamic information.