Is aluminum polychloride a recommended product for water treatment? How does it compare to alumina?
“Coagulation” is an important water treatment process for its human consumption, because there is no another way of eliminating the turbidity of raw water. This technology requires the addition of substances that through a physico-chemical mechanism permits the gathering of small and light particles. The added particles produce bigger ones (called “floccules”) that are easily eliminated by decantation. There are several substances for coagulating and they received the generic name of “coagulants”. A coagulant works by a hydrolization mechanism and creation of physico-chemical structures, where the developing compounds by the process itself are covered by electrical loads that attract the loads of other smaller particles creating together bigger ones. This mechanism is not particularly for one substance. It can be applied to many substances that work with the mechanism and that are used with this. Aluminum sulfate (also called “alumina”), ferric chloride, and a series of natural polyele
