| SRT及碳源浓度对厌氧/好氧交替运行SBR工艺中PHB的影响 |
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| 引用本文： | 吴光学,管运涛.SRT及碳源浓度对厌氧/好氧交替运行SBR工艺中PHB的影响[J].环境科学,2005,26(2):126-130. |
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| 作者姓名： | 吴光学 管运涛 |
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| 作者单位： | 清华大学环境科学与工程系,北京,100084 |
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| 基金项目： | 国家自然科学基金资助项目(50108007) |
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| 摘 要： | 研究了SRT及碳源浓度对厌氧/好氧交替运行SBR工艺活性污泥中PHB的影响.结果表明:SBR51、SBR10及SBR52系统内PHB占MLVSS的最高质量分数分别为9.8%、5.72%和18.89%,好氧初期20min内碳源转化率分别为46%、34%和36.3%,相应PHB的生成速率分别为196.6mg/(L·h)、140mg/(L·h)和295.35mg/(L·h);PHB降解可用PHB在菌体内含量为参数,表征为一级反应动力学;资源化回收PHB需要综合多因素进行考虑;本研究所驯化得到的活性污泥在批式条件下积累PHB主要受到碳源基质浓度梯度的影响.
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| 关 键 词： | 厌氧/好氧交替运行SBR工艺 聚β-羟基丁酸酯 污泥龄 碳源浓度 |
| 文章编号： | 0250-3301(2005)02-0126-05 |
| 收稿时间： | 2004/3/15 0:00:00 |
| 修稿时间： | 2004/5/25 0:00:00 |
Effects of SRT and Carbon Concentration on the PHB in the Anaerobic/Aerobic Alternative Operating SBR Process |
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| WU Guang-xue and GUAN Yun-tao.Effects of SRT and Carbon Concentration on the PHB in the Anaerobic/Aerobic Alternative Operating SBR Process[J].Chinese Journal of Environmental Science,2005,26(2):126-130. |
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| Authors: | WU Guang-xue and GUAN Yun-tao |
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| Institution: | Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China. |
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| Abstract: | Effects of SRT and carbon concentration on the PHB of the anaerobic/aerobic SBR process are studied. The results show that by the order of SBR51,SBR10 and SBR52,the maximum PHB content of MLVSS were 9.8%,5.72% and 18.89%, respectively, while carbon translating ratios were 46%,34% and 36.3% during the first 20min of aerobic phase and PHB forming rate were 196.6mg/(L·h), 140mg/(L·h) and 295.35mg/(L·h). PHB degradation rate can be described with a first order degradation rate with respect to the PHB content of the cells. Reclamation of PHB should consider from several factors. Carbon concentration gradient is the main factor influencing PHB formation under batch experiment. |
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