| 室温低氨氮基质单级自养脱氮颗粒污泥启动效能与污泥特性 |
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| 引用本文： | 谢璐琳,王建芳,钱飞跃,张泽宇,沈耀良,齐泽坤.室温低氨氮基质单级自养脱氮颗粒污泥启动效能与污泥特性[J].环境科学,2019,40(3):1396-1404. |
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| 作者姓名： | 谢璐琳 王建芳 钱飞跃 张泽宇 沈耀良 齐泽坤 |
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| 作者单位： | 苏州科技大学环境科学与工程学院,苏州,215009;苏州科技大学环境科学与工程学院,苏州215009;苏州科技大学天平学院,苏州215009;城市生活污水资源化利用技术国家地方联合工程实验室,苏州215009;苏州科技大学环境科学与工程学院,苏州215009;城市生活污水资源化利用技术国家地方联合工程实验室,苏州215009;江苏高校水处理技术与材料协同创新中心,苏州215009 |
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| 基金项目： | 国家自然科学基金项目（51308367，51578353）；江苏省高等学校自然科学研究项目（18KJB610019）；苏州市科技计划项目（SS201834） |
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| 摘 要： | 室温低氨氮基质条件下单级自养脱氮工艺的启动和稳定运行是该工艺应用于市政污水处理的前提和基础.本研究在气升式反应器中接种久置的PN/A(partial nitritation and ANAMMOX)颗粒污泥,控制温度在(23±2)℃,pH在7. 7～8. 0,以氨氮浓度为70 mg·L~(-1)的人工无机配水为基质,考察单级部分亚硝化-厌氧氨氧化实现室温启动效能.通过逐级缩短HRT(1. 1 h→0. 9 h→0. 7 h→0. 5 h)提升氮负荷1. 53 kg·(m~3·d)~(-1)→1. 87 kg·(m~3·d)~(-1)→2. 40 kg·(m~3·d)~(-1)→3. 36kg·(m~3·d)~(-1)],逐步恢复AOB、AMX菌活性以及微生物协同效能.经过95 d运行调控,反应器成功启动,NH_4~+-N和TN去除率达85%和69%.根据各阶段污泥性能,严格控制溶解氧,有效抑制NOB.污泥适应环境后,颗粒粒径随负荷提升逐渐增大,最终平均粒径达1. 30 mm.成熟的自养颗粒污泥轮廓光滑清晰,扫描电镜显示,颗粒污泥内部形成空腔,表面有孔隙,污泥形态以球菌为主,并有少量杆菌及短杆菌. EPS主要成分为蛋白质(81. 48%),泥水分离效果较好.
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| 关 键 词： | 颗粒污泥 部分亚硝化-厌氧氨氧化 室温 污泥形态 胞外聚合物(EPS) |
| 收稿时间： | 2018/8/7 0:00:00 |
| 修稿时间： | 2018/9/14 0:00:00 |
Start-up Performance and Sludge Characteristics of Single-stage Autotrophic Nitrogen Removal System with Granular Sludge at Low Ammonia Nitrogen Concentration at Room Temperature |
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| XIE Lu-lin,WANG Jian-fang,QIAN Fei-yue,ZHANG Ze-yu,SHEN Yao-liang and QI Ze-kun.Start-up Performance and Sludge Characteristics of Single-stage Autotrophic Nitrogen Removal System with Granular Sludge at Low Ammonia Nitrogen Concentration at Room Temperature[J].Chinese Journal of Environmental Science,2019,40(3):1396-1404. |
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| Authors: | XIE Lu-lin WANG Jian-fang QIAN Fei-yue ZHANG Ze-yu SHEN Yao-liang and QI Ze-kun |
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| Institution: | School of Environmental Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China,School of Environmental Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China;College of Tianping, Suzhou University of Science and Technology, Suzhou 215009, China;National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology, Suzhou 215009, China,School of Environmental Science and Technology, 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,School of Environmental Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China,School of Environmental Science and Technology, 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 and School of Environmental Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China |
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| Abstract: | |
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| Keywords: | granular sludge partial nitritation and ANAMMOX room temperature sludge morphology extracellular polymeric substances(EPS) |
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