Thiocyanate Bio-oxidation Kinetics

by Ronald D. Neufeld, (M.ASCE), Assoc. Prof. of Civ. Engrg.; Univ. of Pittsburgh, Pittsburgh, Pa. 15261,
P. Lubon, Grad. Student; Univ. of Pittsburgh, Pittsburgh, Pa. 15261,
L. Mattson, Grad. Student; Univ. of Pittsburgh, Pittsburgh, Pa. 15261,

Serial Information: Journal of the Environmental Engineering Division, 1981, Vol. 107, Issue 5, Pg. 1035-1049

Document Type: Journal Paper


Thiocyanates have been found in most coal conversion and coke plant effluents. Data were developed for the biological degradation rate kinetics of thiocyanate removal, and material balance information was developed for the fate of sulfur and nitrogen resulting from such bio-decomposition of aqueous thiocyanates. Based on both batch and continuous culture experiments utilizing an activated sludge type of system with strictly thiocyanate degrading organisms, the specific utilization rate for SCN degradation was found to follow a substrate inhibition biokinetic relationship.

Subject Headings: Kinetics | Chemical degradation | Effluents | Biological processes | Sulfur | Nitrogen | Activated sludge | Organisms

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