As a high-molecular-weight inorganic flocculant,
polyaluminium chloride finds extensive application across sectors including domestic sewage and industrial wastewater treatment. Its rapid hydrolysis rate, large alum floc formation, and swift settling velocity further enhance its practical utility. However, the dosage of polyaluminium chloride is contingent upon the wastewater's characteristics and suspended solids content. Dosage varies according to the degree of contamination in the water. It demonstrates excellent purification efficacy for low-temperature, turbid, and highly turbid water. Nevertheless, reactions between its monomers and organic substances may generate certain harmful by-products. Therefore, purity must be ensured during water purification processes.
During application, dissolve the product in water at a 1:3 ratio before diluting with 10–30 times the volume of clean water to achieve the required concentration. It exhibits broad applicability and excellent adaptability to various water types, readily forming large flocs with superior settling properties. It remains effective across a broad pH range of 5–9. Even at low water temperatures, it maintains relatively stable precipitation performance, exhibiting higher alkalinity than traditional aluminium or iron salts. It poses minimal corrosion risk to equipment. However, should it accidentally splash onto skin, immediate rinsing is required. Wearing appropriate protective clothing during production and handling is advisable.
What are the advantages of polyaluminium chloride in application? As a water purification agent, it exhibits exceptional stability. During operation, it undergoes rapid hydrolysis, achieving effective adsorption. Furthermore, it possesses excellent sedimentation properties. It delivers low effluent turbidity alongside superior dewatering capabilities, effectively reducing labour intensity. It offers enhanced reliability and safety in water purification, ensuring secure and dependable water supply. Widely adopted by numerous manufacturers, it demonstrates superior performance. It also effectively removes various toxic and harmful pollutants from water. Its dosage requirement is significantly lower than traditional coagulants. When applied in the papermaking industry, it effectively enhances paper brightness and fold resistance. For high-purity formulations, it also provides excellent retention and filtration aids, effectively improving water retention rates. It is important to note that storage conditions must be appropriate. It must be kept in a dry, well-ventilated environment and must not be exposed to direct sunlight, otherwise it may cause product degradation and adversely affect the final usage effect.
