This invention refers to the prodn. method for a high effective flocculant carbonates, hydroxides, and other salts from weak-acid-strong-base(such as sodium sillcate, sodium aluminate etc.) are adopted as flocculating agent in the process, and forced flocculation is carried out so that the flocculation degree of the aqueous solution, in which various chlorides of aluminium and ferric obtainec via various means, will attain to its maximum. The solution appears to be gelatinous and provides higher flocculating effect as comparing with its former. This prod. can be widely used for the treatment of tap water and various industrial-contaminated wasted water. It offers a series of merits: less consumption, quick pptn., excellent quality of the treated water, and low cost, etc. |