An Economic Evaluation of a Process to Separate Raw Urban Refuse Into Its Metal, Mineral, and Energy Components.
An economic evaluation of the Bureau of Mines process for the separation of raw urban refuse into its metal, mineral, and energy components is presented. The process recovers ferrous metal, mixed nonferrous metals, aluminum, mixed-color glass cullet, and refuse- derived fuel products from raw refuse. Data for this evaluation were obtained from selected runs at the Bureau's pilot plant in Edmonston, Maryland. A cost estimate was prepared for a plant capable of processing 1,000 tons per day of raw urban refuse operating two shifts, 6 days per week. The fixed capital cost, based on second quarter 1976 equipment costs, is approximately $14.5 million excluding land and shipping containers. The extimated operating cost is approximately $8 per ton of refuse processed. This does not include credit for the products, a tipping fee, or a dumping fee for wastes produced. No finance charges or taxes are included in the operating costs.