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EMISSIONS AND RESIDUE VALUES FROM WASTE DISPOSAL DURING WOOD PRESERVING
Citation:
DaRos, B., R. Merill, H. Willard, C. Wolbach, AND D. Wilson. EMISSIONS AND RESIDUE VALUES FROM WASTE DISPOSAL DURING WOOD PRESERVING. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-82/062 (NTIS PB82234246), 1982.
Description:
This document reports emissions and residue that were measured from thermal (pan) evaporation, spray pond evaporation, and direct combustion of organic components in wood preserving wastewater. The information presented includes plant and evaporation device descriptions, test plans, sampling and analytical results, and conclusions and recommendations. Also presented are qualitative descriptions of the fugitive emissions and residues that occur during processing operations. The primary conclusions are that organic compounds are emitted to the atmosphere during thermal (pan) evaporation. Organic emissions from the spray pond were below detectable levels. Contrarily, solid residues in evaporaters had low concentrations of toxic organic constituents while residues in spray ponds contained much higher levels than the feed wastewater. Fugitive organic emissions from the retort and vacuum vents were in high concentration although of limited duration. Thermal destruction of wastewater sludge by co-firing in an industrial wood fired boiler was 96 to 99.99+ percent complete for all organic components measured. Dioxins and furan values varied too much for removal determination but were evident in all ash and sludge samples. Details of their analysis by three laboratories are given.