How should polyaluminum chloride be used correctly?

Polyaluminum chloride (PAC) is a chemical compound that is commonly used in water treatment processes. It is an aluminum-based coagulant that is effective in clarifying water by removing impurities and suspended solids. Here are some key points about PAC 30% in water treatment: Composition: PAC is typically derived from aluminum-containing raw materials and is produced in various forms with different aluminum concentrations. PAC 30% indicates that the solution contains approximately 30% aluminum by weight. Coagulation and Flocculation: PAC is known for its coagulation and flocculation properties. When added to water, it forms positively charged aluminum species that neutralize the negatively charged particles and colloids in the water. This neutralization leads to the formation of larger particles, which can be easily removed through settling or filtration. Water Treatment Applications: Drinking Water Treatment: PAC is commonly used in the treatment of drinking water to remove turbidity, color, and suspended solids. Wastewater Treatment: It is applied in wastewater treatment plants to assist in the removal of pollutants and solids from industrial and municipal effluents. Clarification: PAC is used for the clarification of surface water, groundwater, and industrial process water. Advantages: Efficiency: PAC is effective over a wide range of pH levels, providing efficient coagulation under various water conditions. Reduced Sludge Production: Compared to traditional coagulants like aluminum sulfate (alum), PAC often results in lower sludge production. Low Impact on pH: It has a relatively low impact on the pH of treated water. Dosage and Application: The dosage of PAC 30% in water treatment depends on factors such as the water quality, desired treatment goals, and specific characteristics of the impurities present. It is typically added to water in liquid form and requires proper mixing for uniform distribution.








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