Knowledge Management System of Hefei Institute of Physical Science,CAS
Biosorption of Pb(II) by the resistant Enterobacter sp.: Investigated by kinetics, equilibrium and thermodynamics | |
Liu, Lei1,2; Xia, Mengya1; Hao, Jianwen1; Xu, Haoxi1; Song, Wencheng2,3 | |
2021 | |
发表期刊 | ARCHIVES OF ENVIRONMENTAL PROTECTION |
ISSN | 2083-4772 |
通讯作者 | Song, Wencheng(wencsong@cmpt.ac.cn) |
摘要 | The Pb(II)-resistant bacterium was isolated from heavy metal-contained soils and used as a biosorbent to remove Pb(II). The strain was identified as Enterobacter sp. based on the 16S rRNA sequence analysis. The effect of biosorption properties (pH value, Pb(II) concentration, bacterial concentration and temperature) on Pb(II) was investigated by batch experiments. Results of FTIR and XPS showed that the biosorption process mainly involved some oxygen-containing groups (-OH and -COOH groups). The experimental results and equilibrium data were fitted by pseudo-second-order kinetic model and Langmuir model, respectively. The experimental biosorption isotherms fitted the Langmuir model, and the maximum biosorption capacity was 40.75 mg/g at 298 K. The calculated Delta G degrees and Delta H degrees were -4.06 and 14.91(kJ/mol), respectively, which indicated that biosorption process was spontaneous and endothermic. Results show that Enterobacter sp. will be an efficient biosorbent for Pb(II) removal. |
关键词 | Pb(II) Biosorption Enterobacter sp. Kinetics Thermodynamics |
DOI | 10.24425/aep.2021.138461 |
关键词[WOS] | AQUEOUS-SOLUTIONS ; HEAVY-METAL ; SACCHAROMYCES-CEREVISIAE ; SPIRULINA SP ; REMOVAL ; IONS ; LEAD ; MECHANISMS ; BIOMASS ; URANIUM(VI) |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Anhui Province University Natural Science Research Project[KJ2018A0709] ; Anhui Province University Natural Science Research Project[KJ2019A0988] ; Anhui Province University Natural Science Research Project[KJ2019ZD69] ; Natural Science Foundation of China[21876179] ; Key Program of 13th five-year plan, CASHIPS[KP-2017-25] ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions |
项目资助者 | Anhui Province University Natural Science Research Project ; Natural Science Foundation of China ; Key Program of 13th five-year plan, CASHIPS ; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions |
WOS研究方向 | Environmental Sciences & Ecology |
WOS类目 | Environmental Sciences |
WOS记录号 | WOS:000700925000002 |
出版者 | POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST ENVIRON ENG PAS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.hfcas.ac.cn:8080/handle/334002/125799 |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Song, Wencheng |
作者单位 | 1.Anhui Vocat & Tech Coll, Sch Environm & Chem Engn, Hefei 230011, Peoples R China 2.Chinese Acad Sci, Hefei Canc Hosp, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Hlth & Med Technol, Anhui Prov Key Lab Med Phys & Technol, Hefei 230031, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Lei,Xia, Mengya,Hao, Jianwen,et al. Biosorption of Pb(II) by the resistant Enterobacter sp.: Investigated by kinetics, equilibrium and thermodynamics[J]. ARCHIVES OF ENVIRONMENTAL PROTECTION,2021,47. |
APA | Liu, Lei,Xia, Mengya,Hao, Jianwen,Xu, Haoxi,&Song, Wencheng.(2021).Biosorption of Pb(II) by the resistant Enterobacter sp.: Investigated by kinetics, equilibrium and thermodynamics.ARCHIVES OF ENVIRONMENTAL PROTECTION,47. |
MLA | Liu, Lei,et al."Biosorption of Pb(II) by the resistant Enterobacter sp.: Investigated by kinetics, equilibrium and thermodynamics".ARCHIVES OF ENVIRONMENTAL PROTECTION 47(2021). |
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