| 曝气量对膜生物反应器污泥特性和膜污染的影响 |
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| 引用本文： | 欧阳科,谢珊,刘辉.曝气量对膜生物反应器污泥特性和膜污染的影响[J].中国给水排水,2011,27(13). |
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| 作者姓名： | 欧阳科 谢珊 刘辉 |
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| 作者单位： | 1. 五邑大学,化工与环境工程学院,广东,江门,529020
2. 环境保护部,华南环境科学研究所,广东,广州,510655 |
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| 基金项目： | 广东省高校优秀青年创新人才项目 |
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| 摘 要： | 设置M1、M2和M3等3个反应器的曝气量分别为150、200和300 L/h,研究了曝气量对膜生物反应器(MBR)的运行效果和污泥特性的影响.结果表明,随着曝气量的增加,对COD和NH4+-N的去除率提高,反应器内溶解氧浓度和污泥的比耗氧速率均增加,表明增加曝气量有助于提高污泥的活性.污泥絮体的粒径变小,溶解性微生物代谢产物(SMP)浓度则由M1的46.8mg/L增加到M3的71.0 mg/L,而且其中的成分也发生了变化,蛋白质与多糖的比值随着曝气量的增加而增加,M1的为1.5,M3的则增至1.9.随着曝气量的增加则膜污染速率加快,表明膜污染以SMP污染为主.
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| 关 键 词： | 膜生物反应器 曝气量 污泥特性 溶解性微生物代谢产物 |
Influence of Aeration Rate on Activated Sludge Characteristics and Membrane Fouling in Membrane Bioreactor |
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| OUYANG Ke,XIE Shan,LIU Hui.Influence of Aeration Rate on Activated Sludge Characteristics and Membrane Fouling in Membrane Bioreactor[J].China Water & Wastewater,2011,27(13). |
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| Authors: | OUYANG Ke XIE Shan LIU Hui |
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| Affiliation: | OUYANG Ke1,XIE Shan1,LIU Hui2(1.School of Chemical and Environmental Engineering,Wuyi University,Jiangmen 529020,China,2.South China Institute of Environmental Sciences,MEP,Guangzhou 510655,China) |
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| Abstract: | Three membrane bioreactors(MBR),namely M1,M2 and M3,were operated at aeration rates of 150 L/h,200 L/h and 300 L/h,and the influence of aeration rate on the performance and sludge characteristics in MBR was investigated.The results show that with the increase of aeration rate,the removal rates of COD and NH+4-N are improved,and the DO concentration and the specific oxygen consumption rate of sludge are increased,which indicates that increasing aeration rate is contributive to the improvement of sludge activ... |
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| Keywords: | MBR aeration rate sludge characteristics soluble microbial products(SMP) |
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