Composition based on polyaluminium chloride and iron salt its method of preparation and its use in the treatment of water.

摘要

The subject of the invention is a composition comprising at least one basic aluminum polychloride or polychlorosulphate, at least one compound based on iron (II) and / or iron (III) and at least one salt chosen from metal halides. alkaline and / or alkaline earth. The invention relates to a method for preparing this composition as well as to its use in a process for treating aqueous media.