Wastes from Manufacture of Dyes and Pigments

A preliminary study of the manufacture of dyes and pigments was conducted to determine if process waste streams might contain hazardous material. The study first identifies the dyes and pigments that belong to the major segments of the industry, the amounts produced, and the known U.S. producers. The chemistry of these dyes and pigments is discussed as well as the overall production process and waste treatment practices. Waste streams that could contain hazardous material are identified and companies that produce representative dyes and pigments are recommended for a sampling program to confirm the composition and amounts of these waste streams. This Project Summary was developed by EPA *s Industrial Environmental Research Laboratory, Cincinnati, OH, to announce key findings of the research project that is fully documented in a separate report of the same title (see Project Report ordering information at back).