Highly efficient removal of phosphate using a novel Fe-La binary (hydro) oxide as adsorbent: behavior and mechanism

doi:10.5004/dwt.2017.21046

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

	Highly efficient removal of phosphate using a novel Fe-La binary (hydro) oxide as adsorbent: behavior and mechanism
	Zhang, Wei 1,2; Wang, Xiaowen 3; Chen, Jing 1; Zhang, Gaosheng1 ; Zhang, Gaosheng(Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Proc, 17th Chunhui Rd, Yantai 264003, Shandong, Peoples R China)
刊名	DESALINATION AND WATER TREATMENT
	2017-07-01
卷号	83 页码:98-110
关键词	Fe-la Binary (Hydro)Oxide Phosphate Adsorption Removal
ISSN号	1944-3994
DOI	10.5004/dwt.2017.21046
产权排序	第1完成单位
文献子类	Article
英文摘要	Phosphate has been proved to be one of the main elements causing eutrophication of water bodies. However, the elevated phosphate concentrations in the water bodies are often due to the excess discharge of wastewater containing phosphate. Therefore, treatment of elevated phosphate-containing wastewater is of vital importance to alleviate the situation. In this study, a novel Fe-La binary (hydro) oxide adsorbent was synthesized via a facile coprecipitation method for effective phosphate removal from wastewater. The adsorbent grains were formed of primary nanoparticles. Batch experiments were carried out to investigate adsorption kinetics and equilibrium. The adsorption was fast and well fitted by the pseudo-second-order equation, indicating that the adsorption process might be chemical sorption. The adsorption isotherms could be well described by Freundlich model and the maximal adsorption capacity reached 80.7 mg/g at pH 6.0 +/- 0.1 and 67.4 mg/g at pH 9.0 +/- 0.1, respectively, much higher than many reported adsorbents. The phosphate adsorption was pH dependent and weakly acidic condition was favorable for the adsorption. The phosphatead sorption might be mainly achieved via the replacement of surface hydroxyl groups at the solid surface and the formation of inner-sphere surface complexes. Moreover, the spent adsorbent could be effectively regenerated using dilute NaOH solution and used repeatedly. All these results suggest that the adsorbent maybe a promising alternative for phosphate removal.
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WOS关键词	AQUEOUS-SOLUTIONS ; WASTE-WATER ; LANTHANUM OXIDE ; ALUMINUM-OXIDE ; ADSORPTION ; PHOSPHORUS ; RECOVERY ; SORPTION ; KINETICS ; SPECTROSCOPY
WOS研究方向	Engineering ; Water Resources
语种	英语
WOS记录号	WOS:000412878800011
资助机构	National Natural Science Foundation of China(51478457) ; open Fund of the Jiangsu Key Laboratory for Environment Functional Materials(SJHG1312)
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/23460]
专题	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烟台海岸带研究所_近岸生态与环境实验室
通讯作者	Zhang, Gaosheng; Zhang, Gaosheng(Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Proc, 17th Chunhui Rd, Yantai 264003, Shandong, Peoples R China)
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Zone Environm Proc, 17th Chunhui Rd, Yantai 264003, Shandong, Peoples R China 2.Harbin Inst Technol, Sch Municipal & Environm Engn, State Key Lab Urban Water Resource & Environm, Harbin 150090, Heilongjiang, Peoples R China 3.Yantai 2 Middle Sch Shandong Prov, 57th Chuangxin Rd, Yantai 264003, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Wei,Wang, Xiaowen,Chen, Jing,et al. Highly efficient removal of phosphate using a novel Fe-La binary (hydro) oxide as adsorbent: behavior and mechanism[J]. DESALINATION AND WATER TREATMENT,2017,83:98-110.
APA	Zhang, Wei,Wang, Xiaowen,Chen, Jing,Zhang, Gaosheng,&Zhang, Gaosheng.(2017).Highly efficient removal of phosphate using a novel Fe-La binary (hydro) oxide as adsorbent: behavior and mechanism.DESALINATION AND WATER TREATMENT,83,98-110.
MLA	Zhang, Wei,et al."Highly efficient removal of phosphate using a novel Fe-La binary (hydro) oxide as adsorbent: behavior and mechanism".DESALINATION AND WATER TREATMENT 83(2017):98-110.