| 连续流态下以城市污水培养好氧颗粒污泥及颗粒特性研究 |
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| 引用本文： | 牛姝,段百川,张祚黧,刘士峰,张家铭,王聪,周丹丹.连续流态下以城市污水培养好氧颗粒污泥及颗粒特性研究[J].环境科学,2013,34(3):986-992. |
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| 作者姓名： | 牛姝 段百川 张祚黧 刘士峰 张家铭 王聪 周丹丹 |
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| 作者单位： | 吉林大学地下水资源与环境教育部重点实验室,长春,130026 |
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| 基金项目： | 国家自然科学基金项目(50908096,50908097);吉林省环境保护厅项目(2009_24) |
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| 摘 要： | 在连续流气提式好氧颗粒污泥流化床(CAFB)反应器中,以低浓度的城市污水作为营养基质,絮状污泥作为接种污泥,采用逐级递增负荷的运行方式培养好氧颗粒污泥.研究了CAFB中颗粒污泥的形成过程、颗粒性质和污泥中生物多样性.结果表明,CAFB反应器启动的第6 d即有大量颗粒污泥形成,颗粒直径800～1 000μm.CAFB运行12 d后,污泥浓度MLSS达到6 000 mg·L-1,SVI值稳定在35 mL·g-1左右,胞外聚合物的质量分数与接种前相比有了较大的增长,并具有丰富的生物相和较高的生物量,各项运行指标基本趋于稳定.扫描电镜观察颗粒污泥主要由球菌和杆菌组成,颗粒中含有大量的孔隙和通道.装置稳定运行后,对COD的去除率保持在70%～75%,出水COD的浓度维持在70 mg·L-1左右.在装置运行32 d后,丝状菌大量繁殖,发生污泥膨胀.可见,在CAFB中可以快速形成好氧颗粒污泥,且对污染物具有良好的去除效果,但其运行稳定性还有待深入研究.
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| 关 键 词： | 城市污水 颗粒化 好氧颗粒污泥 连续流 流化床 |
| 收稿时间： | 2012/5/17 0:00:00 |
| 修稿时间： | 2012/8/16 0:00:00 |
Cultivation of Aerobic Granular Sludge with Municipal Wastewater and Studies on Its Characteristics Under the Continuous Flow |
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| NIU Shu,DUAN Bai-chuan,ZHANG Zuo-li,LIU Shi-feng,ZHANG Jia-ming,WANG Cong and ZHOU Dan-dan.Cultivation of Aerobic Granular Sludge with Municipal Wastewater and Studies on Its Characteristics Under the Continuous Flow[J].Chinese Journal of Environmental Science,2013,34(3):986-992. |
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| Authors: | NIU Shu DUAN Bai-chuan ZHANG Zuo-li LIU Shi-feng ZHANG Jia-ming WANG Cong and ZHOU Dan-dan |
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| Institution: | Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, China;Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, China;Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, China;Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, China;Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, China;Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, China;Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130026, China |
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| Abstract: | |
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| Keywords: | municipal sewage granulation aerobic granular sludge continuous flow fluidized bed |
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