Economic Analysis of a Zero Discharge Industrial Wastewater Treatment Process

摘要

This document reports the results of an economic analysis of advanced andemerging industrial wastewater treatment plant (IWTP) technologies. New regulations and the increase in disposal costs for solid wastes have required the Navy to focus on improving the metal removal efficiency and waste generation rates. The Navy is developing Zero Discharge Technologies for three waste steams: (1) chromium, (2) cyanide, and (3) acid/alkali cleaning wastewaters. A Zero Discharge IWTP conceptual design described in this document incorporates advanced separation technologies for metals removal and recovery, advanced oxidation processes (AOP) for mineralization of organics, and membrane separation technologies. This document reports an economic analysis of the unit processes identified in the Zero Discharge IWTP design, identification of further effluent polishing/purification methods, and an assessment of system costs for each effluent recycling option. jg p3.