Ni(II) and Cu(II) removal from aqueous solution by a heavy metal-resistance bacterium: kinetic, isotherm and mechanism studies
Zhang, Haikun1,2; Hu, Xiaoke1; Lu, Hong2; Zhang, Haikun(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264000, Peoples R China)
2017-08-01
发表期刊WATER SCIENCE AND TECHNOLOGY
ISSN0273-1223
卷号76期号:4页码:859-868
产权排序第1完成单位
摘要The potentiality of a heavy metal-resistance bacterium Acinetobacter sp. HK-1 for removing Ni(II) and Cu(II) ions from aqueous solution and the biosorption mechanism were investigated in this study. The effects of pH, contact time and Ni(II)/Cu(II) concentration on the adsorption process were evaluated and the maximum biosorption capacity of strain HK-1 was found to be 56.65 mg/g for Ni(II) and 157.2 mg/g for Cu(II), respectively. The experimental kinetic data fit well with the pseudo-second-order model (R-2> 0.98) and the biosorption process was best explained by the Langmuir-Freundlich dual model (R-2> 0.97). The morphologies of HK-1 before and after adsorption in a Ni(II)/Cu(II) supplemented system were compared using a scanning electron microscope. After adsorption, the valence state of Ni(II)/Cu(II) was not changed and the formation of nickel/copper phosphate was observed using X-ray photoelectron spectroscopy (XPS) and X-ray diffraction. The results of Fourier transform infrared spectroscopy and XPS further indicated that amine, phosphate and carboxyl groups were involved in the biosorption process. Cu(II) biosorption by Acinetobacter sp. was firstly reported. Based on the above results, it can be concluded that Acinetobacter sp. HK-1 has a promising application in Ni(II) and Cu(II) ion removal from industrial wastewater.
关键词Acinetobacter Sp. Biosorption Cu(Ii) Mechanism Ni(Ii)
DOI10.2166/wst.2017.275
项目资助者National Natural Science Foundation of China(41376138)
URL查看原文
收录类别SCI
关键词[WOS]WASTE-WATER ; PSEUDOMONAS-AERUGINOSA ; BIOSORPTION ; ADSORPTION ; EQUILIBRIUM ; CADMIUM ; NICKEL ; STRAIN ; EFFLUENT ; BIOMASS
文章类型Article
语种英语
WOS研究方向Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS记录号WOS:000407462300012
引用统计
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/23418
专题海岸带生物学与生物资源利用所重点实验室
通讯作者Zhang, Haikun; Zhang, Haikun(Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264000, Peoples R China)
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264000, Peoples R China
2.Dalian Univ Technol, Sch Environm Sci & Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China
第一作者单位中国科学院烟台海岸带研究所
通讯作者单位中国科学院烟台海岸带研究所
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Zhang, Haikun,Hu, Xiaoke,Lu, Hong,et al. Ni(II) and Cu(II) removal from aqueous solution by a heavy metal-resistance bacterium: kinetic, isotherm and mechanism studies[J]. WATER SCIENCE AND TECHNOLOGY,2017,76(4):859-868.
APA Zhang, Haikun,Hu, Xiaoke,Lu, Hong,&Zhang, Haikun.(2017).Ni(II) and Cu(II) removal from aqueous solution by a heavy metal-resistance bacterium: kinetic, isotherm and mechanism studies.WATER SCIENCE AND TECHNOLOGY,76(4),859-868.
MLA Zhang, Haikun,et al."Ni(II) and Cu(II) removal from aqueous solution by a heavy metal-resistance bacterium: kinetic, isotherm and mechanism studies".WATER SCIENCE AND TECHNOLOGY 76.4(2017):859-868.
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