| 长期储存亚硝化絮状污泥活性的恢复 |
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| 引用本文： | 李田,魏凡凯,汪裕昌,沈耀良,吴鹏,宋吟玲.长期储存亚硝化絮状污泥活性的恢复[J].环境科学,2018,39(9):4310-4316. |
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| 作者姓名： | 李田 魏凡凯 汪裕昌 沈耀良 吴鹏 宋吟玲 |
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| 作者单位： | 苏州科技大学环境科学与工程学院;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 |
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| 摘 要： | 为探究长期储存亚硝化絮状污泥的脱氮性能,采用CSTR反应器,接种4℃下储存了10个月的亚硝化絮状污泥,考察其活性恢复性能,并采用Mi Seq高通量测序技术分析了污泥中微生物菌群结构的变化情况.结果表明,控制DO为0.4~0.8mg·L~(-1)、pH值8左右、温度为(30±1)℃等条件,长期储存亚硝化絮状污泥的活性可以在15 d内迅速恢复,氨氮去除率和亚硝积累率均达到90%以上;此外,污泥颜色由接种初期的灰黑色迅速恢复至棕黄色,SVI值显著降低,MLVSS/MLSS升高,EPS含量明显增加.随着亚硝化性能的恢复,厌氧、发酵微生物被洗脱,Nitrosomonas等氨氧化细菌相对丰度显著增加,同时,Nitrospria等硝化菌的生长得到了有效抑制.经历长期储存的亚硝化絮状污泥可作为实现短程硝化快速启动的接种污泥,更有利于短程硝化工艺的实际应用.
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| 关 键 词： | 亚硝化絮状污泥 活性恢复 完全混合反应器(CSTR) 微生物菌群结构 |
| 收稿时间： | 2018/2/22 0:00:00 |
| 修稿时间： | 2018/3/13 0:00:00 |
Reactivation Performance of Nitrosation Flocculent Sludge After Long-term Storage |
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| LI Tian,WEI Fan-kai,WANG Yu-chang,SHENG Yao-liang,WU Peng and SONG Yin-ling.Reactivation Performance of Nitrosation Flocculent Sludge After Long-term Storage[J].Chinese Journal of Environmental Science,2018,39(9):4310-4316. |
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| Authors: | LI Tian WEI Fan-kai WANG Yu-chang SHENG Yao-liang WU Peng and SONG Yin-ling |
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| Affiliation: | 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,School of Environmental Science and Engineering, Suzhou University of Science and 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;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;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: | nitrosation flocculent sludge reactivation continuous stirred tank reactor (CSTR) microbial community structure |
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