Aerobic bio-oxidation of thiocyanates: development of design parameters. Progress report, April 1, 1978-April 1, 1979

• Main Authors: Neufeld, R.D., Lubon, P., Mattson, L.
• Language: unknown
• Published: 2013
• Subjects: 01 COAL; LIGNITE; AND PEAT; 10 SYNTHETIC FUELS; 09 BIOMASS FUELS; THIOCYANATES; BIOCHEMICAL REACTION KINETICS; BIODEGRADATION; AEROBIC CONDITIONS; AMMONIA; COAL GASIFICATION PLANTS; MICROORGANISMS; NITROGEN; SULFATES; SULFUR; WASTE WATER; CARBONIC ACID DERIVATIVES; CHEMICAL REACTIONS; CRYOGENIC FLUIDS; DECOMPOSITION; ELEMENTS; FLUIDS; HYDRIDES; HYDROGEN COMPOUNDS; INDUSTRIAL PLANTS; KINETICS; LIQUID WASTES; NITROGEN COMPOUNDS; NITROGEN HYDRIDES; NONMETALS; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; OXYGEN COMPOUNDS; REACTION KINETICS; SULFUR COMPOUNDS; WASTES; WATER; Carbonic acid
• Online Access: http://www.osti.gov/servlets/purl/5862617; https://www.osti.gov/biblio/5862617; https://doi.org/10.2172/5862617

The source of coal conversion wastewater thiocyanates is reviewed. Based on laboratory studies, the biokinetics of aerobic degradation of thiocyanate is quantified and found to follow a substrate inhibition model. A design curve based on theoretical and laboratory considerations is developed. A material balance for sulfur and nitrogen as originally found in the SCN complex is presented. During aerobic degradation of SCN, sulfur goes to sulfate, and nitrogen goes to ammonia. During anaerobic degradation of SCN, sulfur goes to sulfide. Thiocyanate was the sole source of carbon, nitrogen, and sulfur available to the microorganisms during the course of the study.