| 缺氧条件下活性污泥反硝化和释磷对单一碳源的竞争(英文) |
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| 引用本文： | 彭赵旭,彭永臻,桂丽娟,刘旭亮.缺氧条件下活性污泥反硝化和释磷对单一碳源的竞争(英文)[J].中国化学工程学报,2010,18(3):472-477. |
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| 作者姓名： | 彭赵旭 彭永臻 桂丽娟 刘旭亮 |
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| 作者单位： | 1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China;2. College of Environment and Energy Engineering, Beijing Institute of Technology, Beijing 100022, China |
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| 基金项目： | the Scientific Innovation Platform of Beijing Municipal Education Commission，State Key Laboratory of Urban Water Resource and Environment (HIT)，1 |
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| 摘 要： | In order to investigate the competition for carbon source between denitrification and phosphorus release processes,simultaneous phosphorus release and denitrification in sludge operated in anoxic,aerobic mode are investigated by varying the ratio of influent COD to nitrogenous compound concentration under anoxic condition using a lab-scale sequencing batch reactor(SBR).The results show that the nitrate reduction rate is nearly independent of the ratio of influent COD to nitrate under anoxic condition.More NOx--N in the influent leads to less 3 4PO --P release during the feeding period.However, 3 4PO--P release proceeds at a low rate simultaneously with denitrification even when the influent NOx--N concentration is as large as 20 mg·L-1and its rate is increased obviously when NOx--N is denitrified to a concentration lower than 0.5 mg·L-1.The variation of pH during anoxic period gives some information about the biochemical reactions of denitrification and3 4PO--P release.When more nitrate is present in the influent,more acetate uptake in feeding period is used for direct microorganism growth.
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| 关 键 词： | denitrification SBR phosphorus release pH organic substrate |
| 收稿时间： | 2009-7-6 |
| 修稿时间： | 2009-7-6
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Competition for single carbon source between denitrification and phosphorus release in sludge under anoxic condition |
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| PENG Zhaoxu,PENG Yongzhen,GUI Lijuan,LIU Xuliang.Competition for single carbon source between denitrification and phosphorus release in sludge under anoxic condition[J].Chinese Journal of Chemical Engineering,2010,18(3):472-477. |
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| Authors: | PENG Zhaoxu PENG Yongzhen GUI Lijuan LIU Xuliang |
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| Affiliation: | 1. School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China;2. College of Environment and Energy Engineering, Beijing Institute of Technology, Beijing 100022, China |
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| Abstract: | In order to investigate the competition for carbon source between denitrification and phosphorus release processes, simultaneous phosphorus release and denitrification in sludge operated in anoxic, aerobic mode are investigated by varying the ratio of influent COD to nitrogenous compound concentration under anoxic condition using a lab-scale sequencing batch reactor (SBR). The results show that the nitrate reduction rate is nearly independent of the ratio of influent COD to nitrate under anoxic condition. More NOx- -N in the influent leads to less PO43--P release during the feeding period. However, PO43--P release proceeds at a low rate simultaneously with riod gives some information about the biochemical reactions of denitrification and PO43- -P release. When more nitrate is present in the influent, more acetate uptake in feeding period is used for direct microorganism growth. |
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| Keywords: | denitrification SBR phosphorus release pH organic substrate |
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