THE INFLUENCE OF CREOSOTE COMPOUNDS ON THE AEROBIC DEGRADATION OF TOLUENE

Citation
S. Dyreborg et al., THE INFLUENCE OF CREOSOTE COMPOUNDS ON THE AEROBIC DEGRADATION OF TOLUENE, Biodegradation, 7(2), 1996, pp. 97-107
Citations number
28
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
ISSN journal
0923-9820
Volume
7
Issue
2
Year of publication
1996
Pages
97 - 107
Database
ISI
SICI code
0923-9820(1996)7:2<97:TIOCCO>2.0.ZU;2-9
Abstract
The inhibiting effect of 14 typical creosote compounds on the aerobic degradation of toluene was studied in batch experiments. Four NSO-comp ounds (pyrrole, 1-methylpyrrole, thiophene, and benzofuran) strongly i nhibited the degradation of toluene. When the NSO-compounds were prese nt together with toluene, little or no degradation of toluene was obse rved during 16 days of incubation, compared with a total removal of to luene within 4 days when the four compounds were absent. Indole (an N- compound) and three phenolic compounds (phenol, o-cresol, and 2,4-dime thylphenol) also inhibited the degradation of toluene, though the effe ct was much weaker that of the four NSO-compounds. O-xylene, p-xylene, naphthalene and 1-methylnaphthalene seemed to stimulate the degradati on even though the influence was very weak. No effects of benzothiophe ne (an S-compound) and quinoline (an N-compound) were observed. Benzof uran (an O-compound) was identified as the compound that most inhibite d the degradation of toluene. An effect could be detected even at low concentrations (40 mu g/l).