Search Results       Your search for [subject]Sewage - Purification - Flocculation - Patents returned 1 record.           Waste treatment with polyelectrolytes and other flocculants /: Pollution technology review. by Gutcho, Sidney; Park Ridge, N.J.: Noyes Data Corp., 1977. Subject: Polyelectrolytes - Patents; Sewage - Purification - Flocculation - Patents.          Add to Book Cart Relevance: 34.14%