| 活性污泥处理偶氮染料废水过程中胞外聚合物特性研究 |
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| 引用本文： | 操家顺,朱哲莹,方芳,李宇昇,胡海兰.活性污泥处理偶氮染料废水过程中胞外聚合物特性研究[J].环境科学学报,2013,33(9):2498-2503. |
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| 作者姓名： | 操家顺 朱哲莹 方芳 李宇昇 胡海兰 |
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| 作者单位： | 河海大学浅水湖泊综合治理与资源开发教育部重点实验室,南京210098;河海大学环境学院,南京210098 |
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| 基金项目： | 国家自然科学基金，国家重大科技专项，the National Natural Science Foundation of China，the National Science and Technology Major Project |
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| 摘 要： | 采用序批式反应器(SBR)考察了偶氮染料浓度对活性污泥的污染物去除性能及胞外聚合物(Extracellular polymeric substances,EPS)的影响.结果表明,COD、染料及营养物的去除率均随着进水染料浓度的增加而下降,但进水染料浓度对EPS的影响却呈现不同的趋势.当进水染料浓度为5 ～40 mg·L-1时,EPS含量随着染料浓度的增加而增加;当进水染料浓度超过40 mg·L-1时,EPS含量却随着染料浓度的增加而减少.染料的加入导致活性污泥EPS中蛋白质的含量增加,且其变化趋势与EPS变化一致;EPS中腐殖酸的浓度低于蛋白质浓度;而EPS中多糖的浓度最低,为8 mg·g-1.三维荧光光谱结果显示,不同染料浓度下EPS荧光吸收峰数量及位置相同,分别为类蛋白峰(λEx/λEm=240 nm/375 ～394 nm)和类富里酸类峰(λEx/λEm =270 nm/410～416 nm),但两个吸收峰的荧光强度不同.
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| 关 键 词： | 活性污泥 偶氮染料 胞外聚合物(EPS) 三维荧光光谱 |
| 收稿时间： | 2012/12/27 0:00:00 |
| 修稿时间： | 2/4/2013 12:00:00 AM |
Characteristics of extracellular polymeric substances (EPS) in the azo dye wastewater treated by activated sludge |
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| CAO Jiashun,ZHU Zheying,FANG Fang,LI Yusheng and HU Hailan.Characteristics of extracellular polymeric substances (EPS) in the azo dye wastewater treated by activated sludge[J].Acta Scientiae Circumstantiae,2013,33(9):2498-2503. |
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| Authors: | CAO Jiashun ZHU Zheying FANG Fang LI Yusheng and HU Hailan |
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| Institution: | 1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098;2. College of Environment, Hohai University, Nanjing 210098;1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098;2. College of Environment, Hohai University, Nanjing 210098;1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098;2. College of Environment, Hohai University, Nanjing 210098;1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098;2. College of Environment, Hohai University, Nanjing 210098;1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, Hohai University, Nanjing 210098;2. College of Environment, Hohai University, Nanjing 210098 |
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| Abstract: | |
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| Keywords: | activated sludge azo dye extracellular polymeric substances (EPS) three-dimensional excitation-emission matrix (EEM) |
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