Abstract

The increasing need to supplement our dwindling supply of natural gas and yet maintain environmental quality has generated a need for bioassay of aquatic effluents from coal-conversion systems. One of the more promising coal-to-gas schemes is the Synthane process currently under study at the Bruceton Laboratories of the Pittsburgh Energy Research Center (Pittsburgh, Pennsylvania). This laboratory-scale Synthane operation provides product streams considered to be representative of those which will eventually be produced by commercial procedures (FORNEY et al. 1974). The major effluent and potential source of environmental pollutants is the contaminated condensate from the 40-atm fluid-bed gasifier (FORNEY et al. 1974). Chemical analyses of this aqueous effluent show that its composition varies with the type of coal used, but its major organic components are phenolic compounds and ammonia (FORNEY et al. 1974; HO et al. 1977). The purpose of the present paper is to examine the toxicity to the fathead minnow of the condensate water from the gasifier.

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