| 负荷及盐度对好氧颗粒污泥EPS的影响 |
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| 引用本文： | 王春,李志华,王晓昌.负荷及盐度对好氧颗粒污泥EPS的影响[J].环境工程学报,2009,3(4):591-594. |
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| 作者姓名： | 王春 李志华 王晓昌 |
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| 作者单位： | 西安建筑科技大学环境与市政工程学院,西北水资源与环境生态教育部重点实验室,西安,710055 |
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| 基金项目： | 国家自然科学基金资助项目(50708089);国家高技术研究发展计划（863）项目（2006AA06Z328） |
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| 摘 要： | 研究了序批式反应器(SBR)内好氧颗粒污泥在不同有机负荷(1.6 kg COD/（m3·d）和8 kg COD/（m3·d)）和不同含盐(2.5%和5.0%)条件下胞外聚合物(EPS)的变化情况，并对EPS、比耗氧速率(SOUR)和孔隙率之间的关系作了进一步探讨。结果表明：在SBR反应器中，负荷较含盐量对好氧颗粒污泥EPS变化的影响要显著，且EPS糖成分和SOUR之间、EPS蛋白成分和孔隙率之间均呈负相关。另外，高负荷条件下的系统稳定性要优于低负荷。
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| 关 键 词： | 好氧颗粒污泥 孔隙率 生物活性 |
Effects of organic loading rate and salinity on characteristics ofextracellular polymeric substances (EPS) of aerobic granules |
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| Wang Chun,Li Zhihua and Wang Xiaochang.Effects of organic loading rate and salinity on characteristics ofextracellular polymeric substances (EPS) of aerobic granules[J].Techniques and Equipment for Environmental Pollution Control,2009,3(4):591-594. |
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| Authors: | Wang Chun Li Zhihua and Wang Xiaochang |
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| Institution: | Key Laboratory of Northwest Water Resources;Environment and Ecology;Ministry of Education;School of Environmental and Municipal Engineering;Xi'an University of Architecture and Technology;Xi'an 710055 |
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| Abstract: | Effects of organic loading rate (OLR) and salinity on the properties of extracellular polymeric substances (EPS) in aerobic granules, and the relationship between EPS and specific oxygen uptake rate (SOUR) and porosity were investigated in this work. It was found that OLR affected characteristics of EPS more significantly than the salinity did. The carbohydrate EPS negatively correlated with SOUR, and the protein EPS also negatively correlated with porosity. Additionally, with respect to the saline shock, granules under a high OLR were more stable than those under a low OLR. |
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| Keywords: | EPS SOUR |
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