||Characterization and treatment of wastes from metal-finishing operations
||PEI Associates, Inc., Cincinnati, OH.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
||Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Metal wastes ;
Cyanide wastes ;
Factory and trade waste
Waste water ;
Research projects ;
Chemical stabilization ;
Chemical reactions ;
Waste disposal ;
Chemical analysis ;
Solid wastes ;
Heavy metals ;
Laboratory tests ;
||Region 9 Library/San Francisco,CA
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
The Hazardous and Solid Waste Amendments (HSWA) to the Resource Conservation and Recovery Act (RCRA) include specific provisions restricting the land disposal of RCRA hazardous wastes. The purpose of these HSWA provisions is to minimize the potential of future risk to human health and the environment by requiring treatment of hazardous wastes prior to their land disposal. The EPA's Office of Research and Development was responsible for treating several electroplating and metal-finishing waste codes and providing performance data in support of the development of treatment standards for the Land Disposal Restrictions Program. The report summarizes the project activities associated with the characterization and treatment of some metal-finishing wastes. Information and data are presented on the waste generators' manufacturing and wastewater treatment plant operations, the chemical composition of the untreated wastes, and performance data generated from bench- and pilot-scale testing. Treatment technologies discussed in the report include alkaline chlorination, wet-air oxidation, ultraviolet light/ozonation, electrolytic oxidation, stabilization/solidification, and metals precipitation. Conclusions are presented regarding the effectiveness of the various technologies in treating selected electroplating and metal-finishing wastes. The report also presents a section on cyanide chemistry. Most of the wastes discussed in the report contain cyanide salts or complexed cyanide; therefore, the section provides a background of useful information on terminology, definitions, cyanide chemistry, stability and toxicity of cyanide compounds, and analytical methodologies. An appendix to the report provides a summary of the land disposal restriction treatment standards for the electroplating and metal-finishing wastes discussed in the report.
"Project officer: Ronald J. Turner." "Authors: PEI Associates, Inc."--Bibliographic data sheet. "Prepared for Environmental Protection Agency, Cincinnati, OH"--Cover. "November 1990." "EPA/600/2-90/055." Includes bibliographical references and appendices. Photocopy. Sponsored by the Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency.