| Enhanced Biological Phosphorus Removal in Anaerobic/Aerobic Sequencing Batch Reactor Supplied with Glucose as Carbon Source |
| |
| 作者姓名： | 刘亚男 于水利 荆国林 赵冰洁 郭思远 |
| |
| 作者单位： | School of municipal ＆ Environmental Engineering, Harbin Institute of Technology, Harbin 150090 |
| |
| 摘 要： | Phosphorus removal performance in an aerobic/aerobic sequencing batch reactor （SBR） supplied with glucose as carbon source was investigated. It was found that there was no phosphate release concomitant with the storing of poly-β-hydroxyalkanoate （PHA） during the anaerobic phase. Whereas, glycogen was soon built up followed by rapid consumption, at the same time, glucose was depleted rapidly. Based on the analysis of different fractions of phosphorus in activated sludge, the relative ratio of organically bound phosphorus in sludge changed at the end of anaerobic and aerobic phases. The ratios were 45.3% and 51.8% respectively. This showed that the polyphosphate broke down during the anaerobic phase to supply part of energy for PHA synthesis. The reason why there was no phosphate release might be the biosorption effect of extracellular exopolymers （EPS）. It was also proved by the analysis of EPS with scanning electron microscopy （SEM） combined with energy dispersive spectrometry （EDS）. The phosphorus weight percentage of EPS at the end of anaerobic phase was 9.22%.
|
| 关 键 词： | 废水处理 生物除磷 糖源 碳源 生物吸附 厌氧/需氧生物反应堆 |
| 收稿时间： | 2004-07-03 |
Enhanced Biological Phosphorus Removal in Anaerobic/Aerobic Sequencing Batch Reactor Supplied with Glucose as Carbon Source |
| |
| LIU Yanan,YU Shui-li,JING Guo-lin,ZHAO Bing-jie,GUO Si-yuan.Enhanced Biological Phosphorus Removal in Anaerobic/Aerobic Sequencing Batch Reactor Supplied with Glucose as Carbon Source[J].Journal of Donghua University,2005,22(3):95-99. |
| |
| Authors: | LIU Yanan YU Shui-li JING Guo-lin ZHAO Bing-jie GUO Si-yuan |
| |
| Abstract: | Phosphorus removal performance in an aerobic/aerobic sequencing batch reactor (SBR) supplied with glucose as carbon source was investigated. It was found that there was no phosphate release concomitant with the storing of poly-β-hydroxyalkanoate (PHA) during the anaerobic phase. Whereas, glycogen was soon built up followed by rapid consumption, at the same time, glucose was depleted rapidly. Based on the analysis of different fractions of phosphorus in activated sludge, the relative ratio of organically bound phosphorus in sludge changed at the end of anaerobic and aerobic phases. The ratios were 45.3% and51.8% respectively. This showed that the polyphosphate broke down during the anaerobic phase to supply part of energy for PHA synthesis. The reason why there was no phosphate release might be the biosorption effect of extracellular exopolymers (EPS). It was also proved by the analysis of EPS with scanning electron microscopy (SEM)combined with energy dispersive spectrometry (EDS). The phosphorus weight percentage of EPS at the end of anaerobic phase was 9.22%. |
| |
| Keywords: | Biological phosphorus removal glucose extracellular exopolymers biosorption |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
