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Kinetics of enzymatic degradation of cyanide
Author(s) -
Basheer S.,
Kut Ö. M.,
Prenosil J. E.,
Bourne J. R.
Publication year - 1992
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260390607
Subject(s) - chemistry , cyanide , ionic strength , biocatalysis , batch reactor , kinetics , formate , degradation (telecommunications) , chromatography , ammonia , organic chemistry , ionic liquid , catalysis , aqueous solution , telecommunications , physics , quantum mechanics , computer science
CYANIDASE @ is a new enzyme preparation capable of degrading cyanide in industrial wastewaters to ammonia and formate in an apparently one‐step reaction, down to very low concentrations. This enzyme has both a high selectivity and affinity toward cyanide. A granular form of the biocatalyst was used in a recirculation fixed bed reactor in order to characterize the new biocatalyst with respect to pH, ionic strength, common ions normally present in wastewaters, mass transfer effects, and temperature. Long term stability was investigated. The kinetics of the enzymatic degradation of cyanide were studied in a batch reactor using the powdered immobilized enzyme preparation and modeled using a simple Michaelis‐Menten equation.