| Influence of the wastewater composition on denitrification and biological P-removal in the S-DN-P process： （c） Dissolved and undissolved substrates |
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| 引用本文： | Hee-Jeong Choi,Chul-Ho Choi,Seung-Mok Lee,Diwakar Tiwari. Influence of the wastewater composition on denitrification and biological P-removal in the S-DN-P process： （c） Dissolved and undissolved substrates[J]. 环境科学学报(英文版), 2009, 21(8): 1074-1079. DOI: 10.1016/S1001-0742(08)62384-0 |
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| 作者姓名： | Hee-Jeong Choi Chul-Ho Choi Seung-Mok Lee Diwakar Tiwari |
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| 作者单位： | Hee-Jeong Choi,Chul-Ho Choi,Seung-Mok Lee(Department of Environmental Engineering,Kwandong University,Gangneung 210-701,Korea);Diwakar Tiwari(Department of Chemistry,School of Physical Sciences,Mizoram University,Aizawl-796 009,India) |
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| 基金项目： | supported by the KoreaScience and Engineering Foundation (KOSEF) grant funded by the Korea government (MEST) (No. 2009-0078010) |
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| 摘 要： | The denitrification and P-removal in the sorption-denitrification-P-removal (S-DN-P) process were carried out under various wastewater compositions. It is noted that P-removal largely depends on the wastewater composition as well to the quantity of the substrates present in wastewater fraction. Three different wastewater fractions are obtained as: raw wastewater, dissolved wastewater (obtained with filtration using 0.45 μm filter), and undissolved wastewater (i.e., infiltrate obtained by above filtration). ...
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| 关 键 词： | 生物除磷脱氮 不溶物 水溶解 废水 组成 反硝化作用 过滤器 吸附去除 |
| 收稿时间： | 2008-09-10 |
| 修稿时间： | 2009-03-12 |
Influence of the wastewater composition on denitrification and biologicalP-removal in the S-DN-P process: (c) Dissolved and undissolved substrates |
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| Hee-Jeong Choi,Chul-Ho Choi,Seung-Mok Lee and Diwakar Tiwari. Influence of the wastewater composition on denitrification and biologicalP-removal in the S-DN-P process: (c) Dissolved and undissolved substrates[J]. Journal of environmental sciences (China), 2009, 21(8): 1074-1079. DOI: 10.1016/S1001-0742(08)62384-0 |
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| Authors: | Hee-Jeong Choi Chul-Ho Choi Seung-Mok Lee Diwakar Tiwari |
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| Affiliation: | 1. Department of Environmental Engineering,Kwandong University,Gangneung 210-701,Korea
2. Department of Chemistry,School of Physical Sciences,Mizoram University,Aizawl-796 009,India |
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| Abstract: | The denitrification and P-removal in the sorption-denitrification-P-removal (S-DN-P) process were carried out under various wastewater compositions. It is noted that P-removal largely depends on the wastewater composition as well to the quantity of the substrates present in wastewater fraction. Three different wastewater fractions are obtained as: raw wastewater, dissolved wastewater (obtained with filtration using 0.45 μm filter), and undissolved wastewater (i.e., infiltrate obtained by above filtration). The ratio of P-release/CODtotal-consumption clearly inferred that undissolved wastewater possess very low value i.e., 0.0008 followed by raw wastewater 0.008 and dissolved wastewater 0.03. When this ratio was nearby 0.01, enhanced P-removal was observed. Moreover, the ratio of P-uptake to NO3−-N decomposition for raw wastewater was two times for dissolved wastewater. Interestingly, it was observed that the P-removal and denitrification depend not only on the dissolved substrates but also the undissolved substrates present in the wastewater. The result of the P-removal obtained with this S-DN-P process did not show a big difference of 36%, 34% and 30%, respectively, for raw, dissolved and undissolved wastewater. |
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| Keywords: | denitrification polyhydroxybutyrate sequencing batch biofilm reactor sorption denitrification P-removals |
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