原文传递
Impact of Cr(VI) on P removal performance in enhanced biological phosphorus removal (EBPR) system based on the anaerobic and aerobic metabolism
| 题名： | Impact of Cr(VI) on P removal performance in enhanced biological phosphorus removal (EBPR) system based on the anaerobic and aerobic metabolism |
| 正文语种： | 中文 |
| 作者： | Jing Fang Pei-de Sun Shao-juan Xu Tao Luo Ju-qing Lou Jing-yi Han Ying-qi Song |
| 作者单位： | School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, hina |
| 关键词： | Cr(VI) Enzymes Poly-b-hydroxyalkanoates (PHA) Glycogen Recovery treatment |
| 摘要： | Influence of Cr(Ⅵ) on P removal in enhanced biological phosphorus removal (EBPR) system was investigated with respect to the composition of poly-phosphate-accumulating organisms (PAOs) and glycogen accumulating organisms (GAOs),the transformation of poly-b-hydroxyalkanoates (PHA) and glycogen,enzymes' activities,and the intracellular Cr.Whether EBPR system could revive after Cr(Ⅵ) shock was also explored.Results showed P removal performance was completely inhibited by Cr(Ⅵ) with the concentration more than 5 mg L-1.PAOs were more sensitive to Cr(Ⅵ) than GAOs and the other bacteria were.PHA consumption,glycogen synthesis and adenylate kinase's activity had been inhibited by 5mg L-1 Cr(Ⅵ).Both adenylate kinase's activity and P removal efficiency were negatively correlated with the intracellular Cr.Recovery experiments revealed that P removal performance with 5 mg L-1 Cr(Ⅵ) shock could revive after a 2-day recovery treatment,while systems with high level Cr(Ⅵ) (20 and 60 mg L-1) shock could not. |
| 会议日期： | 20141113 |
| 会议举办地点： | 杭州 |
| 会议名称： | 浙江省环境科学学会2014年学术年会 |
| 出版日期： | 2014-11-13 |
| 母体文献： | 浙江省环境科学学会2014年学术年会论文集 |
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