Controlling SO2Emissions from Coal-Fired Steam-Electric Generators:Water Pollution Impact. Volume I. Executive Summary.

摘要

The report gives results of one task in a comprehensive program to review a New Source Performance Standards (NSPS) for SO2emissions from coal-fired steam-electric generating plants. The results compare two alternative standard to the existing NSPS (1.2lb SO2/million Btu of heat input): (1) 0.5lb SO2/million Btu of heat input,allowing credit (as does the existing NSPS) for physical coal cleaning or use of low sulfur coal;and (2) 90% removal of SO2from stack gases,regardless of original coal sulfur content. The comparisons are in terms of their effect on the quality and quantity of power plant wastewater effluents and on the amount of plant water consumption.