Thermodynamics of the interaction between antibiotics and extracellular polymeric substances within activated sludge
文献类型：期刊论文
| 作者 | Zhang, Cheng-Cheng1; Guo, Jin-Song1,2 ; Chen, You-Peng1,2; Ji, Fang-Ying1; Wang, Jing3; Yan, Peng1,2; Bai, Yun4
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| 刊名 | ENVIRONMENTAL TECHNOLOGY
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| 出版日期 | 2019-05-25 |
| 卷号 | 40期号:12页码:1525-1533 |
| ISSN号 | 0959-3330 |
| 关键词 | Extracellular polymeric substances antibiotics thermodynamics isothermal titration calorimetry activated sludge |
| DOI | 10.1080/09593330.2018.1426635 |
| 通讯作者 | Ji, Fang-Ying(jfytougao@163.com) ; Yan, Peng(yanpengstu@163.com) |
| 英文摘要 | The removal of antibiotics in biological wastewater treatment plants (WWTPs) has attracted an ever-increasing interest. Extracellular polymeric substances (EPS) play a crucial role in antibiotics' bio-adsorption using activated sludge, but the interaction mechanism between antibiotics and EPS remains unclear. In this study, the thermodynamics of interactions between EPS and antibiotics (acetaminophen (ACT) and sulfamethazine (SMZ)) were investigated via isothermal titration calorimetry (ITC). The results show that the extracellular proteins strongly combined with ACT and SMZ, and the binding process depended on entropy driven by the hydrophobic interaction as the main driving force. Environmental conditions have a significant impact on the adsorption performance. Therefore, binding of antibiotics and EPS at different pH and ionic strength were investigated to determine the optimal pH and ionic strength. At the near-neutral condition of pH 6.8, the binding reaction of EPS and antibiotics was the most favorable and the conformational change was the maximal. Ionic strength has an obvious effect on the interaction between EPS and antibiotics. The results of this study provided a better understanding of the interaction between antibiotics and EPS in the WWTPs. [GRAPHICS] . |
| 资助项目 | National Natural Science Foundation of China[51508546] ; National Natural Science Foundation of China[51578527] ; National Research Base of Intelligent Manufacturing Service[KFJJ2016037] ; Science and Technology Plan of Ministry of Housing and Urban-Rural Development of China[2016-K4-034] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS LTD |
| WOS记录号 | WOS:000462854100004 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/7637]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Ji, Fang-Ying; Yan, Peng |
| 作者单位 | 1.Chongqing Univ, Key Lab Three Gorges Reservoir Reg Ecoenvironm MO, Chongqing 400045, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 3.Chongqing Jianzhu Coll, Chongqing, Peoples R China 4.Chongqing Technol & Business Univ, Natl Res Base Intelligent Mfg Serv, Chongqing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Cheng-Cheng,Guo, Jin-Song,Chen, You-Peng,et al. Thermodynamics of the interaction between antibiotics and extracellular polymeric substances within activated sludge[J]. ENVIRONMENTAL TECHNOLOGY,2019,40(12):1525-1533. |
| APA | Zhang, Cheng-Cheng.,Guo, Jin-Song.,Chen, You-Peng.,Ji, Fang-Ying.,Wang, Jing.,...&Bai, Yun.(2019).Thermodynamics of the interaction between antibiotics and extracellular polymeric substances within activated sludge.ENVIRONMENTAL TECHNOLOGY,40(12),1525-1533. |
| MLA | Zhang, Cheng-Cheng,et al."Thermodynamics of the interaction between antibiotics and extracellular polymeric substances within activated sludge".ENVIRONMENTAL TECHNOLOGY 40.12(2019):1525-1533. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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