ANAEROBIC DEGRADATION OF PCP AND PHENOL IN FIXED-FILM REACTORS - THE INFLUENCE OF AN ADDITIONAL SUBSTRATE

被引:28
作者
HENDRIKSEN, HV
LARSEN, S
AHRING, BK
机构
关键词
ANAEROBIC DEGRADATION; PENTACHLOROPHENOL; PCP; PHENOL; FIXED-FILM REACTORS; ADDITIONAL CARBON SOURCE; GLUCOSE;
D O I
10.2166/wst.1991.0500
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The anaerobic degradation of pentachlorophenol (PCP) and phenol was examined in two lab-scale fixed-film reactors. Anaerobic digested sewage sludge from a municipal treatment plant was used as inoculum. The reactors were fed a mineral medium containing PCP (1-2 mg/l) and phenol (4-6 mg/l). In addition one of the reactors received 1 g/l glucose as an easily degradable carbon source. After 6 months of continuous operation, the removal of PCP in the reactor with no glucose added was approximately 60%, whereas the removal in the reactor with glucose reached 98%. Tetrachlorophenol (TeCP) and trichlorophenol (TCP) were found as degradation products and the removal of these compounds was also significantly enhanced by the presence of glucose. Phenol degradation was approximately 70% with glucose added and 95% without glucose.
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页码:431 / 436
页数:6
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