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Refinery uses bioslurry process to treat RCRA wastes. T. Oolman et al. Hydrocarbon Processing, April 1996, 75(4), 71--76.

A biological process for treating 144 500 brl/day oily waste from a Texas refinery is described. The treated product meets standards defined by the Resource Conservation and Recovery Act (RCRA) for landfill disposal. The bioslurry process is described and illustrated. The main steps are centrifugation, bioslurry treatment, and dewatering operations. Concentrations of 17 contaminants in untreated and treated residues are presented in tabular form and compared with RCRA requirements. Analytical techniques for evaluating organic contaminants are described. There are also limitations on the permitted levels of chromium and nickel in effluent streams. Economic aspects of the bioslurry reactor process are discussed. 2 refs.

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