Anaerobic degradation of nonylphenol in sludge

被引：78

作者：

Chang, BV ^{[1
]}

Chiang, F ^{[1
]}

Yuan, SY ^{[1
]}

机构：

[1] Soochow Univ, Dept Microbiol, Taipei 111, Taiwan

来源：

CHEMOSPHERE | 2005年 / 59卷 / 10期

关键词：

nonylphenol; anaerobic degradation; sludge;

D O I：

10.1016/j.chemosphere.2004.12.055

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We investigated the effects of various factors on the anaerobic degradation of nonylphenol (NP) in sludge. NP (5 mg/l) anaerobic degradation rate constants were 0.029 1/day for sewage sludge and 0.019 1/day for petrochemical sludge, and half-lives were 23.9 days and 36.5 days respectively. The optimal pH for NP degradation in sludge was 7 and the degradation rate was enhanced when the temperature was increased. The addition of yeast extract (5 mg/l) or surfactants such as brij 30 or brij 35 (55 or 91 mu M) also enhanced the NP degradation rate. The addition of aluminum sulfate (200 mg/l) inhibited the NP degradation rate within 84 days of incubation. The high-to-low order of degradation rates was: sulfate-reducing conditions > methanogenic conditions > nitrate-reducing conditions. Sulfate-reducing bacteria, methanogen, and eubacteria are involved in the degradation of NP, sulfate-reducing bacteria being a major component of sludge. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1415 / 1420

页数：6

共 18 条

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