Search Results       Your search for [subject]Factory and trade waste -- United States -- Congresses returned 1 record.           Symposium on Physical-Chemical Treatment from Municipal and Industrial Sources, Taft Center, Cincinnati, Ohio, November 12-14, 1975. Washington: U.S. Environmental Protection Agency, 1975. Subject: Sewage disposal plants -- United States -- Congresses; Factory and trade waste -- United States -- Congresses; Refuse and refuse disposal -- United States -- Congresses.          Add to Book Cart Relevance: 26.65%