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

doi:10.1007/s11356-018-2862-9

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Phosphate affects adsorption and desorption of oxytetracycline in the seawater-sediment systems
	Li, Jia ; Zhang, Hua ; Yuan, Guodong
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2018-10
卷号	25 期号:28 SI 页码:28160-28168
关键词	Oxytetracycline Phosphate Sorption desorption Salinity Combined effects Kinetics
ISSN号	0944-1344
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
文献子类	Article
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.
WOS关键词	OXIDE-RICH SOILS ; MN BINARY OXIDE ; MARINE-SEDIMENTS ; SORPTION ; TETRACYCLINE ; RESISTANCE ; ESTUARY ; WATER ; ANTIBIOTICS ; ENVIRONMENT
WOS研究方向	Environmental Sciences
语种	英语
WOS记录号	WOS:000445215500042
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]
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24540]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_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.Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, 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.