Role of nitrate in biological phosphorus removal in a sequencing batch reactor

被引：0
作者：
Hua Zou
Guo-Cheng Du
Wen-Quan Ruan
Jian Chen
机构：
[1] Southern Yangtze University,Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology
来源：
World Journal of Microbiology and Biotechnology | 2006年 / 22卷
关键词：
Biological phosphorus removal; phosphorus accumulating organisms (PAOs); poly(hydroxyalkanoates) (PHAs); electron acceptor;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effects of nitrate on phosphorus release and uptake in a sequencing batch reactor for biological phosphorus removal was investigated. The addition of nitrate decreased phosphorus release in the anaerobic stage. The synthesis of poly(hydroxyalkanoates) was decreased with the presence of nitrate, possibly due to the competitive utilization of the carbon source by PHA synthesis and denitrification of nitrate. Instead of oxygen, nitrate could be used as an electron acceptor for phosphorus removal. However, the simultaneous addition of nitrate and acetate greatly reduced the phosphorus removal rate. Phosphate and nitrate could be removed simultaneously with nitrate as the electron acceptor, and the continuous and steady feeding of nitrate was beneficial to phosphate removal.
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页码：701 / 706
页数：5
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