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Biochemical Studies on Accelerated Treatment of Thiocyanate by Activated Sludge using Growth Factors such as Pyruvate
Author(s) -
Woodard A. J.,
Stafford D. A.,
Callely A. G.
Publication year - 1974
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1974.tb00442.x
Subject(s) - thiocyanate , oxidizing agent , activated sludge , chemistry , biochemistry , enzyme , pyruvate decarboxylation , citric acid cycle , nuclear chemistry , organic chemistry , waste management , sewage treatment , engineering
S ummary . Micro‐organisms in activated sludge oxidizing thiocyanate behave in a similar way to thiobacilli. Organic compounds such as pyruvate stimulate thiocyanate oxidation and in so doing become incorporated into cellular material; such metabolites are not oxidized to produce energy. The presence of thiocyanate in batch cultures accelerated pyruvate uptake. The carbon of thiocyanate is recovered mainly as CO 2 ; carbonate becomes incorporated into cellular protein, but less so in sludges previously treated with pyruvate. TCA cycle enzymes are not altered appreciably after pyruvate is added to activated sludge.