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Article
The mitigation of acute toxicity of coal-derived liquids by hydrotreatment
The Journal of Environmental Science and Health A (1984)
  • Terry W Schultz, University of Tennessee - Knoxville
  • J.N. Dumont
Abstract

Acute toxicity of 12 coal derived liquids representing 3 different technologies and 4 different severities of hydrotreatment has been examined with the Tetrahymena population growth bioassay. Tetrahymena were exposed to various concentrations of the organic materials and growth impairment was monitored. In addition, analyses of the major organic elements in the coal liquids are presented. Coal-derived liquids have a greater heteroatom and aromatic content than do natural crude oils. Hydrotreatment, the catalytic addition of hydrogen, concomitantly reduces toxicity as well as heteroatom content and aromaticity. Regression analysis of log toxicity vs % weight of the major organic elements suggests hydrogen content may be a good indicator of relative toxicity of coal-derived liquids.

Publication Date
1984
Citation Information
Terry W Schultz and J.N. Dumont. "The mitigation of acute toxicity of coal-derived liquids by hydrotreatment" The Journal of Environmental Science and Health A Vol. 19 Iss. 4 (1984)
Available at: http://works.bepress.com/terry_schultz/171/