As a water purification agent, polyaluminium ferric chloride has good effect in water treatment. Due to the diversity and complexity of wastewater, when using polyaluminium ferric chloride to treat wastewater, it is often necessary to add some other water treatment agents. Can polyaluminium ferric chloride be used with bleaching powder when purifying water?

Polyaluminum ferric chloride and bleaching powder are the most commonly used water purification agents. Polyaluminium ferric chloride mainly plays the role of flocculation and sedimentation, and is mostly used as flocculant, mainly used for the clarification of muddy water. In short, it can make the turbid river water or rain water clearer, but it has no effect on some harmful bacteria in the water. Bleaching powder can kill microorganisms and Escherichia coli in water, and hypochlorite will be formed when it is dissolved in water. Hypochlorite can effectively kill microorganisms and bacteria, and is used as a disinfectant for domestic water. Polyaluminum ferric chloride needs corresponding time and certain conditions to treat wastewater, but there is no great requirement for water temperature. If yellow particles are found after adding polyaluminum ferric chloride for full reaction, it is the product of combination of polyaluminum ferric chloride and impurities in water, and the water quality will become clear after sedimentation. Both polyaluminum ferric chloride and bleaching powder have corresponding usage. The accurate usage of polyaluminum ferric chloride can completely react with impurities in water. Adding bleaching powder for sterilization has no effect.