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Inhibiting action of chlorophenols on biodegradation of phenol and its correlation with structural properties of inhibitors
Author(s) -
Beltrame Paolo,
Beltrame Pier Luigi,
Carniti Paolo,
Guardione Donatella,
Lanzetta Cecilia
Publication year - 1988
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.260310809
Subject(s) - lipophilicity , phenol , biodegradation , chemistry , activated sludge , phenols , partition coefficient , chromatography , linear correlation , organic chemistry , environmental chemistry , sewage treatment , environmental engineering , statistics , mathematics , engineering
An activated sludge conditioned to a low concentration of phenol was used for the biodegradation of phenol in the presence of Chlorophenols, measuring the inhibiting action of all the latter compounds and expressing it as p/ 50. As a structural property to be correlated with the measured values, the lipophilicity (log P ) of the Chlorophenols was reevaluated with a new apparatus. Values of p/ 50 p are better correlated with the number of chloro substituents in the inhibitor, provided a specific effect of substituents ortho to the phenolic function is considered. New results are compared with previous measurements effected on a different activated sludge.