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	Study on adsorption isotherm models of phosphate by suspended sediments from outfalls of Changjiang estuary and Hangzhou bay
	Li, M ; Wang, GQ ; Ni, JR ; Wei, HP
	2010-05-10 ; 2010-05-10 ; OCT 18-21, 2004
会议名称	PROCEEDINGS OF THE NINTH INTERNATIONAL SYMPOSIUM ON RIVER SEDIMENTATION, VOLS 1-4 ; 9th International Symposium on River Sedimentation ; Yichang, PEOPLES R CHINA ; Web of Science
关键词	Changjiang Estuary Hangzhou bay sediment isotherm adsorption model phosphate Water Resources
中文摘要	This paper studies the adsorption isotherm of phosphate adsorbed by suspended sediments from Zhuyuan, Bailonggang and Xinghuo sewage outfalls of Changjiang estuary and Hangzhou bay. Langmuir, Freundlich and Temkin adsorption isotherm equations were used to describe the experimental P-adsorption data. It was concluded that the adsorption data of sediments with high fine particle content fitted to the Langmuir model more than Freundlich and Temkin model. It was also found that the exponent equation seem to be useful for interpreting the adsorption processes on sediments with low fine particle content. According to precipitation theory, the exponent isotherm models of some sediment samples may caused by the precipitation reaction of CaHPO4 from Ca2+ and HPO42- when the phosphate concentration in liquid phase is high.
会议录出版者	TSINGHUA UNIVERSITY PRESS ; BEIJING ; TSINGHUA UNIVERSITY HAIDIANQU, BEIJING 100084, PEOPLES R CHINA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/20120]
专题	清华大学
推荐引用方式 GB/T 7714	Li, M,Wang, GQ,Ni, JR,et al. Study on adsorption isotherm models of phosphate by suspended sediments from outfalls of Changjiang estuary and Hangzhou bay[C]. 见:PROCEEDINGS OF THE NINTH INTERNATIONAL SYMPOSIUM ON RIVER SEDIMENTATION, VOLS 1-4, 9th International Symposium on River Sedimentation, Yichang, PEOPLES R CHINA, Web of Science.

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