TREATMENT OF CIVIL ENGINEEARING MUDDY WATER

摘要

PURPOSE: To provide a simple flocculation treatment method reduced not only in the use amt. of a chemical agent but also in the generation amt. of sludge. ;CONSTITUTION: Flocculation treatment is performed using a mixture of aluminum chloride containing 1-5wt.% of a sulfur ion as SO₄ and having basicity of 35-65% and polydimethyldiallylammonium chloride. By treating civil engineering muddy water, the use amt. of a chemical agent and the generation amt. of sludge are reduced as compared with a case using only a general inorg. flocculant. Further, excellent effect of extremely simplifying flocculation treatment operation is developed as compared with the combined treatment with a general high-molecular flocculant.;COPYRIGHT: (C)1994,JPO&Japio