The formation of flocs fast, high precipitation speed, and thus reaction precipitation time can be shortened, under the appropriate conditions to improve productivity several times to improve settlement filtration and sludge dewatering performance. When the basic aluminum chloride is coagulated, the alkalinity in the water is less than that of the inorganic coagulants. The polyaluminum chloride can obviously improve the solid-liquid separation efficiency. Polyaluminum chloride in the actual use of the process, not only has a strong coagulation and turbidity removal effect, but also has significant bleaching and humus removal effect; basic polyaluminum chloride storage period of two years, with or without added alkaline Auxiliaries and coagulant. Its ability to bleed better than other inorganic water purifying agent. At present, the use of polymeric ferric sulfate instead of polyaluminum chloride or alkali aluminum wastewater coagulation use, since the basic activity of aluminum chloride, should be placed in a ventilated and dry place, moisture does not affect the use of effect: // www, treated water The PH value is also reduced. The polyaluminum chloride used in the pH range is much wider than the traditional aluminum salt. Generally, when low temperature water is used, coagulant turbidity efficiency of traditional coagulants is obviously reduced and effluent quality is deteriorated. Polyaluminum is used to shorten the settling time of sedimentation tanks and increase water production. In addition, the flocs produced are large and compact. Therefore, the treatment of water, especially in the treatment of high concentrations of water, less dosage, adaptability, dissolution speed, precipitation speed; can effectively remove the metal and radioactive substances on the water quality of the pollution: the specific dosage by the user actual test was Out of the amount to determine. Optimal flocculation is achieved under the same treatment conditions, requiring less than half as much polyaluminum as conventional aluminum salts. Under the same dosage conditions. Alkali aluminum chloride dosage is generally .cl39.com "target =" _blank "> http: //www.cl39, the use of polymeric aluminum can be obtained than the traditional aluminum salt lower residual turbidity. After aluminum chloride treatment The residual aluminum content in water is very low, making it easy to filter and dewater sludge.Alkali chloride has unique properties in the treatment of paper and printing and dyeing wastewater