Factors influencing adsorption and desorption of trimethoprim on marine sediments: mechanisms and kinetics
Li, Jia1,2; Zhang, Hua1; Zhang, Hua(Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China)
2017-09-01
发表期刊ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
卷号24期号:27页码:21929-21937
产权排序第1完成单位
摘要Adsorption-desorption behavior of ionic antibiotics in natural aquatic environment is complex, especially in coastal or estuary area where influencing factors such as pH and salinity usually varied in a wide range. In this study, batch-type and stirred flow chamber (SFC) experiments were carried out to simulate the sorption-desorption behavior of trimethoprim (TMP) in seawater-sediment system. Equilibrium and kinetic modeling were carried out to determine the rate and extent of TMP sorption on two marine sediments with different properties. Sediment BHB (K-d, 6.40 L kg(-1)) has a greater sorption capacity compared with sediment LZB (K-d, 3.40 L kg(-1)), which is related to the higher content of organic carbon and clay of sediment BHB. Adsorption of TMP varied in the pH range of 6.9 to 8.1 with maximum adsorption at pH 7.4. Increasing salinity and presence of phosphate and nitrate led to decreased TMP sorption. Attenuated total reflection Fourier transform infrared (ATR-FTIR) analysis demonstrated the formation of hydrogen bond between TMP and marine sediments. Adsorption of TMP on marine sediments was a non-equilibrium process that can be described with second-order kinetic model. Our analysis suggested that chemical non-equilibrium was the rate controlling process and intraparticle diffusion was also involved in TMP adsorption. A moderate desorption percentage (16.4-22.8% for LZB and 32.5-42.0% for BHB) was observed. Overall, the results showed that environmental factors and time-dependent processes need to be considered in modeling the fate and transport of TMP in coastal/estuarine waters.
关键词Trimethoprim Adsorption-desorption Kinetics Mechanisms Influencing Factors Stirred Flow Chamber Marine Sediment
DOI10.1007/s11356-017-9693-y
项目资助者National Nature Science Foundation of China(41671473, 41230858) ; Joint Project of the National Natural Science Foundation of China(U1406403) ; Joint Project of the National Natural Science Foundation of Shandong Province(U1406403) ; Key Research Program of the Chinese Academy of Sciences(KZZD-EW-14)
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收录类别SCI
关键词[WOS]ORGANIC-MATTER ; SORPTION KINETICS ; ECOLOGICAL RISKS ; CHINA OCCURRENCE ; SOILS ; OXYTETRACYCLINE ; ANTIBIOTICS ; EQUILIBRIUM ; PHOSPHATE ; NONEQUILIBRIUM
文章类型Article
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS记录号WOS:000409962200038
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/23436
专题中科院海岸带环境过程与生态修复重点实验室
通讯作者Zhang, Hua; Zhang, Hua(Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China)
作者单位1.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
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Li, Jia,Zhang, Hua,Zhang, Hua. Factors influencing adsorption and desorption of trimethoprim on marine sediments: mechanisms and kinetics[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(27):21929-21937.
APA Li, Jia,Zhang, Hua,&Zhang, Hua.(2017).Factors influencing adsorption and desorption of trimethoprim on marine sediments: mechanisms and kinetics.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,24(27),21929-21937.
MLA Li, Jia,et al."Factors influencing adsorption and desorption of trimethoprim on marine sediments: mechanisms and kinetics".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 24.27(2017):21929-21937.
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