| 基于MBR不同种泥短程硝化启动的微生物群落结构分析 |
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| 引用本文： | 吴鹏,陈亚,张婷,沈耀良,徐乐中.基于MBR不同种泥短程硝化启动的微生物群落结构分析[J].环境科学,2018,39(10):4636-4643. |
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| 作者姓名： | 吴鹏 陈亚 张婷 沈耀良 徐乐中 |
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| 作者单位： | 苏州科技大学环境科学与工程学院;城市生活污水资源化利用技术国家地方联合工程实验室;江苏省水处理技术与材料协同创新中心;江苏省环境科学与工程重点实验室 |
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| 基金项目： | 国家自然科学基金项目（51578353）；江苏省自然科学基金项目（BK20160356）；江苏高校优势学科建设工程项目；环境工程江苏省重点专业类项目；江苏省高校自然科学研究项目（16KJB610013） |
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| 摘 要： | 为明确膜生物反应器(MBR)接种不同污泥启动短程硝化前后微生物群落结构变化特征,采用MBR反应器分别接种硝化污泥(R1)、厌氧亚硝化污泥(R2)和1∶1混合接种厌氧亚硝化污泥和反硝化污泥(R3),获取有利于实现快速短程硝化的污泥源.结果表明,结合间歇曝气和缩短水力停留时间(HRT),R1、R2与R3反应器分别耗时46 d、8 d和30 d成功启动短程硝化,R2反应器启动周期最短.稳定运行期内,R1、R2和R3反应器亚硝累积率平均为92%、93%和94%,R3反应器表现出更稳定的短程硝化性能.ACE、Chao、Shannon和Simpson指数结果表明,稳定运行后,R1和R2反应器微生物丰度和多样性水平均大幅低于接种污泥,R3反应器物种丰度略有减少而多样性水平变化不大.短程硝化成功启动后,3个反应器内的主要菌群为变形菌门(Proteobacteria)和拟杆菌门(Bacteroidetes),且主要脱氮功能菌变形菌门丰度相较于接种污泥均有提高.β-变形菌纲为3个反应器短程硝化系统的优势菌群,分别占比59.6%、63.6%和69.3%.R1、R2和R3反应器内的优势菌属均为亚硝化单胞菌属(Nitrosomonas),所占比例分别达12.8%、20.2%和19.7%.相比R1反应器,R2和R3反应器接种污泥内存在一定比例的亚硝化细菌,更有利于系统短程硝化的实现.
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| 关 键 词： | 短程硝化 膜生物反应器 接种污泥 启动 微生物群落结构 |
| 收稿时间： | 2018/2/5 0:00:00 |
| 修稿时间： | 2018/3/30 0:00:00 |
Microbial Community Characteristics of Shortcut Nitrification Start-up in Different MBR-Inoculated Sludges |
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| WU Peng,CHEN Y,ZHANG Ting,SHEN Yao-liang and XU Yue-zhong.Microbial Community Characteristics of Shortcut Nitrification Start-up in Different MBR-Inoculated Sludges[J].Chinese Journal of Environmental Science,2018,39(10):4636-4643. |
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| Authors: | WU Peng CHEN Y ZHANG Ting SHEN Yao-liang and XU Yue-zhong |
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| Institution: | School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, Suzhou 215009, China;Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, China;Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou 215009, China,School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China,School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China,School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, Suzhou 215009, China;Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, China;Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou 215009, China and School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China;National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, Suzhou 215009, China;Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, China;Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou 215009, China |
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| Abstract: | |
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| Keywords: | shortcut nitrification membrane bioreactor (MBR) inoculated sludge start-up microbial community |
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