Phosphate affects adsorption and desorption of oxytetracycline in the seawater-sediment systems

doi:10.1007/s11356-018-2862-9

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	Phosphate affects adsorption and desorption of oxytetracycline in the seawater-sediment systems
	Li, Jia ; Zhang, Hua; Yuan, Guodong
发表期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
	2018-10
卷号	25 期号:28 SI 页码:28160-28168
关键词	Oxytetracycline Phosphate Sorption desorption Salinity Combined effects Kinetics
研究领域	Environmental Sciences & Ecology
DOI	10.1007/s11356-018-2862-9
产权排序	[Li, Jia] Yangzhou Univ, Sch Environm Sci & Engn, Yangzhou 225127, Jiangsu, Peoples R China; [Li, Jia; Zhang, Hua] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Yuan, Guodong] Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Peoples R China
作者部门	海岸带环境过程实验室
英文摘要	The fate and transport of antibiotics in the aquatic environment are usually influenced by the combined effects of environmental factors. In this study, batch-type experiments were conducted to investigate the combined effects of phosphate and salinity on oxytetracycline (OTC) adsorption on, and desorption from, two marine sediments. Pseudo-second-order kinetic model fitted the kinetic data better than pseudo-first-order model. The pseudo-second-order kinetic rate (k(2)) of OTC increased significantly with increasing phosphate concentrations. Sorption isotherms of OTC can be well described by both the Langmuir and Freundlich models. Compared with the control experiments (without phosphate addition), Freundlich distribution coefficients (K-F) after addition of 50mgL(-1) phosphate decreased from 24.9 to 17.9Lkg(-1) on sediments collected from Laizhou Bay, and from 52.2 to 31.3Lkg(-1) on sediments collected from Bohai Bay, which indicated that phosphate could inhibit adsorption of OTC on marine sediments. Furthermore, phosphate had a stronger inhibitory effect on OTC adsorption at low salinity level than at high salinity level. The effects of phosphate on OTC adsorption can be explained by ion exchange, change of sediment surface charge, and electrostatic repulsion mechanisms. Desorption experiments showed that phosphate can enhance the total desorption percentage of OTC from marine sediments. Overall, the presence of phosphate in marine system may enhance OTC's long-term transport.
文章类型	Article
资助机构	National Nature Science Foundation of China [41271506, 41230858] ; National Natural Science Foundation of China [U1406403] ; Shandong Province [U1406403] ; Key Research Program of the Chinese Academy of Sciences [KZZD-EW-14]
收录类别	SCI
语种	英语
关键词[WOS]	OXIDE-RICH SOILS ; MN BINARY OXIDE ; MARINE-SEDIMENTS ; SORPTION ; TETRACYCLINE ; RESISTANCE ; ESTUARY ; WATER ; ANTIBIOTICS ; ENVIRONMENT
研究领域[WOS]	Environmental Sciences
WOS记录号	WOS:000445215500042
引用统计	被引频次：10[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/133337/24540
专题	中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室中国科学院海岸带环境过程与生态修复重点实验室_污染过程与控制实验室
作者单位	1.Yangzhou Univ, Sch Environm Sci & Engn, Yangzhou 225127, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; 3.Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Peoples R China
推荐引用方式 GB/T 7714	Li, Jia,Zhang, Hua,Yuan, Guodong. Phosphate affects adsorption and desorption of oxytetracycline in the seawater-sediment systems[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(28 SI):28160-28168.
APA	Li, Jia,Zhang, Hua,&Yuan, Guodong.(2018).Phosphate affects adsorption and desorption of oxytetracycline in the seawater-sediment systems.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(28 SI),28160-28168.
MLA	Li, Jia,et al."Phosphate affects adsorption and desorption of oxytetracycline in the seawater-sediment systems".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.28 SI(2018):28160-28168.

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