| 限氮和限磷对活性污泥合成聚羟基烷酸的影响 |
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| 引用本文： | 陈志强,田婷,温沁雪,陈玮.限氮和限磷对活性污泥合成聚羟基烷酸的影响[J].环境工程学报,2010,4(4):771-775. |
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| 作者姓名： | 陈志强 田婷 温沁雪 陈玮 |
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| 作者单位： | 1. 城市水资源开发利用(北方)国家工程研究中心,哈尔滨1500901;哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090
2. 哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨,150090 |
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| 基金项目： | 国家自然科学基金资助项目（50708025）；中国博士后科学基金（20080430921）；哈尔滨市留学回国人才研究专项资金项目（2007RFLXS013)；城市水资源与水环境国家重点实验室开放课题（08UWQA06） |
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| 摘 要： | 聚羟基烷酸(PHA)是微生物在不平衡营养条件下贮存的一种胞内聚合物,限磷和限氮两种方式均有助于活性污泥中的混合菌群合成PHA,研究考察了两种不同方式下活性污泥合成PHA的情况。实验结果表明,当C∶N为125时,活性污泥中PHA的合成量达到细胞干重的59%;当C∶P为750时,活性污泥积累的最大PHA含量占细胞干重的37%,说明限氮和限磷两种方式对活性污泥合成PHA均有很大影响,且限氮方式更有效。
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| 关 键 词： | 聚羟基烷酸(PHA) 限氮 限磷 污泥膨胀 |
| 修稿时间： | 6/1/2009 12:00:00 AM |
Impact of nitrogen limitation and phosphorus limitation on PHA synthesis by activated sludge |
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| Chen Zhiqiang,Tian Ting,Wen Qinxue and Chen Wei.Impact of nitrogen limitation and phosphorus limitation on PHA synthesis by activated sludge[J].Techniques and Equipment for Environmental Pollution Control,2010,4(4):771-775. |
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| Authors: | Chen Zhiqiang Tian Ting Wen Qinxue and Chen Wei |
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| Institution: | 1.National Engineering Research Center of Urban Water Resources, Harbin 150090,China;2.State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China,2.State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China,2.State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China and 2.State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China |
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| Abstract: | Polyhydroxyalkanoates (PHA) is stored as energy and carbon reserve material when microorganisms arc supplied with unblanced nutriention. PHA production will be improved with limited nitrogen and phosphorus supply. The accumulation of PHA under two different conditions(nitrogen and phosphorus limitation) was studied in this research. The results showed that the activated sludge can accumulate PHA up to 59% of the sludge dry weight when carbon-nitrogen ratio is 125, while PHA production can achieve 37% at carbon-phosphorus ratio of 750. This indicated that both nitrogen and phosphorus limitation are feasible ways for PHA synthesis, however, nitrogen limitation is more effective. |
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| Keywords: | polyhydroxyalkanoates(PHA) nitrogen limitation phosphorus limitation sludge bulking |
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