| 包埋活性污泥反硝化性能的快速提高及群落分析 |
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| 引用本文： | 杨宏,徐富,孟琛,苏姗,袁星.包埋活性污泥反硝化性能的快速提高及群落分析[J].环境科学,2018,39(10):4661-4669. |
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| 作者姓名： | 杨宏 徐富 孟琛 苏姗 袁星 |
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| 作者单位： | 北京工业大学建筑工程学院北京市水质科学与水环境恢复工程重点实验室;北京城市排水集团有限责任公司 |
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| 基金项目： | 中央引导地方科技发展专项（Z161100004516015） |
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| 摘 要： | 为了快速提高以污水厂反硝化池污泥为菌源的反硝化包埋填料的活性,实现包埋固定化的工程化应用,探究包埋填料的微生物群落特性,采用批次实验研究不同碳氮比、温度、pH对包埋填料活性的影响,并采用高通量测序研究包埋填料的生物群落特性.结果表明,C/N为10、温度为30℃、pH为7.5±0.3时,经过7 d即可恢复5.37 mg·(g·h)~(-1)的初始活性.在C/N为10,温度为25℃,pH为8.0的最优培养条件下,15 d后比反硝化速率即增大15倍至80.17 mg·(g·h)~(-1)并实现稳定运行.SEM结果显示包埋填料内部存在大量利于传质的通道,内部的细菌呈团簇状生长良好.高通量测序表明,包埋填料中具有反硝化功能的Thauera和Thermomonas为优势菌属,所占比例分别为24.27%和8.23%,保证了反硝化填料脱氮的高效性.Thauera优势菌属和Thermomonas菌属在最优培养条件下快速增殖是填料活性快速提高的主要原因.
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| 关 键 词： | 反硝化 包埋填料 比反硝化速率 污泥发酵液 群落分析 |
| 收稿时间： | 2018/1/7 0:00:00 |
| 修稿时间： | 2018/4/4 0:00:00 |
Rapid Improvement of Denitrification Performance of Embedded Activated Sludge and Community Analysis |
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| YANG Hong,XU Fu,MENG Chen,SU Shan and YUAN Xing.Rapid Improvement of Denitrification Performance of Embedded Activated Sludge and Community Analysis[J].Chinese Journal of Environmental Science,2018,39(10):4661-4669. |
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| Authors: | YANG Hong XU Fu MENG Chen SU Shan and YUAN Xing |
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| Institution: | Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architectural Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architectural Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architectural Engineering, Beijing University of Technology, Beijing 100124, China,Key Laboratory of Beijing for Water Quality Science and Water Environmental Recovery Engineering, College of Architectural Engineering, Beijing University of Technology, Beijing 100124, China and Beijing Drainage Group Co., Ltd., Beijing 100124, China |
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| Abstract: | |
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| Keywords: | denitrification embedding filler specific denitrification rate sludge fermentation broth community analysis |
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