||Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. ;Ellison Consultants, Monrovia, , MD. ;Acurex Corp., Research Triangle Park, NC.
The paper gives an overview of a substantial ongoing air pollution control program in West Germany, as it relates to emission of acid gases and other pollutants from municipal refuse incineration. It details emission regulations, control means used, and technical advancements accomplished and foreseen. It gives results and the approximate effectiveness of various controls in reducing acid gas, trace organic, trace heavy metal, and particulate matter emissions. Available data indicate that lime spray dryer/electrostatic precipitator (ESP) and spray dryer/fabric filter systems can attain 70-90% acid gas removal and 97% or more control of dioxins and furans, while limiting mercury emissions to about 0.01-0.07 mg/N-cu m (dry). In comparison, some wet scrubber systems can attain 90-plus % acid gas removal with substantial removal of NOx and comparable control of dioxins and furans, while possibly providing consistently lower mercury emissions.