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WASTE MINIMIZATION ASSESSMENT FOR A MANUFACTURER OF PENNY BLANKS AND ZINC PRODUCTS
Citation:
Jendrucko, R. AND J. Maginn, Jr. WASTE MINIMIZATION ASSESSMENT FOR A MANUFACTURER OF PENNY BLANKS AND ZINC PRODUCTS. EPA/600/S-92/037, 1992.
Impact/Purpose:
information
Description:
The U.S. EnvIronmental Protection Agency (EPA) has funded a pilot project to assist small- and medium-size manufacturers who want to minimize their generation of waste but who lack the expertise to do so. aste Minimization Assessment Centers (WMACs) were established at selected universities and procedures were adapted from the EPA Waste Minimization Opportunity Assessment Manual (EPA/625/7-88/003, July 1988). he WMAC team at the University of Tennessee performed an assessment at a plant manufacturing penny blanks, dry cell battery cans, and other zinc products--approximately 120 million lb/yr. inc ingots and scrap zinc are melted in an electric furnace. he molten zinc is formed nto coils of strip for further processing or sale to industrial customers. he circular penny blanks are formed in a press, upset to form a rim on the edge, copper plated, and visually inspected. attery can blanks are pressed from the strip, drawn into can shape, cleaned, and dried. he team's report, detailing findings and recommendations, indicated that the most waste was generated as dross in melting the zinc and that the greatest savings could be obtained by reducing drag-out from the plating tanks to reduce downstream sludge formation and installing driers to dewater the sludge before shipment for disposal. his Research Brief was developed by the principal investigators and EPA's Risk Reduction Engineering Laboratory, Cincinnati, OH, to announce key findings of a research project that is fully documented in a separate report of the same title available from University City Science Center.