Removal performance of nitrogen and endocrine-disrupting pesticides simultaneously in the enhanced biofilm system for polluted source water pretreatment

被引：0

作者：

Feng, Li-Juan ^{[1
,2
]}

Yang, Guang-Feng ^{[2
]}

Zhu, Liang ^{[2
]}

Xu, Xiang-Yang ^{[2
,3
]}

机构：

[1] Department of Environmental Engineering, Zhejiang Ocean University, No. 1 Haida South Road, Zhoushan,316022, China

[2] Department of Environmental Engineering, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou,310058, China

[3] ZJU-UWA Joint Centre in Integrated Water Management and Protection, No. 866 Yuhangtang Road, Hangzhou,310058, China

来源：

Bioresource Technology | 2014年 / 170卷

基金：

中国国家自然科学基金;

关键词：

Aerobic and anaerobic conditions - Anaerobic batch reactors - Denaturing gradient gel electrophoreses (DGGE) - Microbial communities - Pretreatment systems - Reed addition - Removal performance - Source waters;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The removal performances of nitrogen and trace levels of endocrine-disrupting pesticides (cypermethrin and chlorpyrifos) were studied in the enhanced biofilm pretreatment system at various substrates concentrations and dissolve oxygen (DO) niches. No significant change of EDPs removal occurred with the increased feed of ammonia nitrogen in aerobic batch tests or nitrate in anaerobic batch reactors, but significantly enhanced via reed addition both in aerobic and anaerobic conditions. Simultaneously enhanced denitrification and EDPs removal were achieved in the anoxic niche with reed addition. The results of denaturing gradient gel electrophoresis (DGGE) indicated that new bands appeared, and some bands became more intense with the reed addition. Sequences analysis showed that the dominant species belonged to Methylophilaceae, Hyphomicrobium, Bacillus and Thauera, which were related to the nitrogen or EDPs removals. In addition, the growth of functional heterotrophic microbes may be promoted via reed addition. © 2014 Elsevier Ltd.

引用

页码：549 / 555