Biotransformation of trace organic compounds by activated sludge from a biological nutrient removal treatment system

被引：38
作者：
Inyang, Mandu [1 ]
Flowers, Riley [1 ,2 ]
McAvoy, Drew [3 ]
Dickenson, Eric [1 ]
机构：
[1] Sorthern Nevada Water Author, Appl Res & Dev Ctr, Henderson, NV 89015 USA
[2] Southern Co, Birmingham, AL 35292 USA
[3] Univ Cincinnati, Environm Engn, Cincinnati, OH 45221 USA
来源：
BIORESOURCE TECHNOLOGY | 2016年 / 216卷
关键词：
Biological nutrient removal; Activated sludge; Redox; Trace organics; Biodegradation; WASTE-WATER TREATMENT; AEROBIC MEMBRANE BIOREACTOR; MASS-SPECTROMETRY; BIODEGRADATION; FATE; IDENTIFICATION; DEGRADATION; PRODUCTS; PHARMACEUTICALS; TRIMETHOPRIM;
D O I：
10.1016/j.biortech.2016.05.124
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The removal of trace organic compounds (TOrCs) and their biotransformation rates, k(b) (L g(SS)(1) h(-1)) was investigated across different redox zones in a biological nutrient removal (BNR) system using an OECD batch test. Biodegradation kinetics of fourteen TOrCs with initial concentration of 1-36 mu g L-1 in activated sludge were monitored over the course of 24 h. Degradation kinetic behavior for the TOrCs fell into four groupings: Group 1 (atenolol) was biotransformed (0.018-0.22 L g(SS)(1) h(-1)) under anaerobic, anoxic, and aerobic conditions. Group 2 (meprobamate and trimethoprim) biotransformed (0.010.21 L g(SS)(1) h(-1)) under anoxic and aerobic conditions, Group 3 (DEET, gemfibrozil and triclosan) only biotransformed (0.034-0.26 L g(SS)(1) h(-1)) under aerobic conditions, and Group 4 (carbamazepine, primidone, sucralose and TCEP) exhibited little to no biotransformation (<0.001 L g(SS)(1) h(-1)) under any redox conditions. BNR treatment did not provide a barrier against Group 4 compounds. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：778 / 784
页数：7
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