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ENVIRONMENTAL ASSESSMENT REPORT: SOLVENT REFINED COAL (SRC) SYSTEMS
Citation:
Shields, K., H. Hopkins, E. Weir, AND C. Thompson. ENVIRONMENTAL ASSESSMENT REPORT: SOLVENT REFINED COAL (SRC) SYSTEMS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-79/146.
Description:
The report is an integrated evaluation of air emissions, water effluents, solid wastes, toxic substances, control/disposal alternatives, environmental regulatory requirements, and environmental effects associated with solvent refined coal (SRC) systems. It considers the SRC-I(solid product) and SRC-II(liquid product) variations of solvent refining in terms of a hypothetical facility to produce 7950 cum/day liquefied coal products. Discussions emphasize SRC-II production, identifying differences applicable to SRC-I production. An overview of the SRC system processes is followed by characterizations of applicable input materials, process streams, waste streams, products, and byproducts. Control and disposal options are surveyed to determine their applicability to subject discharges. Potentially applicable regulatory requirements are reviewed and compared to estimated after-treatment discharge levels. Source Analysis Model(SAM) analyses indicate that solid wastes produced by SRC systems are the greatest source of current environmental concern. The major environmental difference between SRC-I and SRC-II systems is the potential for particulate emissions of SRC-I solid product dust. Additional information needs for future environmental assessment are discussed. Supplemental information pertinent to the discussions is included in appendices.