Adsorption behavior of sulfamethazine in an activated sludge process treating swine wastewater
文献类型：期刊论文
| 作者 | Ben, Weiwei ; Qiang, Zhimin ; Yin, Xiaowei ; Qu, Jiuhui ; Pan, Xun |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2014 |
| 卷号 | 26期号:8页码:1623-1629 |
| 关键词 | Sulfonamide antibiotics Activated sludge Adsorption Swine wastewater treatment |
| ISSN号 | 1001-0742 |
| 中文摘要 | Swine wastewater is an important pollution source of antibiotics entering the aquatic environment. In this work, the adsorption behavior of sulfamethazine (SMN), a commonly-used sulfonamide antibiotic, on activated sludge from a sequencing batch reactor treating swine wastewater was investigated. The results show that the adsorption of SMN on activated sludge was an initially rapid process and reached equilibrium after 6 hr. The removal efficiency of SMN from the water phase increased with an increasing concentration of mixed liquor suspended solids, while the adsorbed concentration of SMN decreased. Solution pH influenced both the speciation of SUN and the surface properties of activated sludge, thus significantly impacting the adsorption process. A linear partition model could give a good fit for the equilibrium concentrations of SMN at the test temperatures (i.e., 10, 20 and 30 degrees C). The partition coefficient (K-d) was determined to be 100.5 L/kg at 20 degrees C, indicating a quite high adsorption capacity for SMN. Thermodynamic analysis revealed that SMN adsorption on activated sludge was an exothermic process. This study could help to clarify the fate and behavior of sulfonamide antibiotics in the activated sludge process and assess consequent environmental risks arising from sludge disposal as well. (C) 2014 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS记录号 | WOS:000340738000008 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9494]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ben, Weiwei,Qiang, Zhimin,Yin, Xiaowei,et al. Adsorption behavior of sulfamethazine in an activated sludge process treating swine wastewater[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2014,26(8):1623-1629. |
| APA | Ben, Weiwei,Qiang, Zhimin,Yin, Xiaowei,Qu, Jiuhui,&Pan, Xun.(2014).Adsorption behavior of sulfamethazine in an activated sludge process treating swine wastewater.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,26(8),1623-1629. |
| MLA | Ben, Weiwei,et al."Adsorption behavior of sulfamethazine in an activated sludge process treating swine wastewater".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 26.8(2014):1623-1629. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。