Bioaccumulation characterization of uranium by a novel Streptomyces sporoverrucosus dwc-3

被引：6

作者：

Xiaolong Li ^{[1
]}

Congcong Ding ^{[1
,2
]}

Jiali Liao ^{[1
]}

Liang Du ^{[3
]}

Qun Sun ^{[2
]}

Jijun Yang ^{[1
]}

Yuanyou Yang ^{[1
]}

Dong Zhang ^{[3
]}

Jun Tang ^{[1
]}

Ning Liu ^{[1
]}

机构：

[1] Key Laboratory of Radiation Physics and Technology,Ministry of Education,Institute of Nuclear Science and Technology,Sichuan University

[2] Key Laboratory of Biological Resource and Ecological Environment of the Ministry of Education,College of Life Sciences,Sichuan University

[3] Institute of Nuclear Physics and Chemistry,CAEP

来源：

Journal of Environmental Sciences | 2016年 / 41卷 / 03期

关键词：

Bioaccumulation; Uranium; Nanoparticle; Streptomyces sporoverrucosus dwc-3; Bioremediation;

D O I：

暂无

中图分类号：

X753 [金属矿]; X172 [环境微生物学];

学科分类号：

071012 ; 0713 ; 083002 ;

摘要：

The biosorption mechanisms of uranium on an aerobic bacterial strain Streptomyces sporoverrucosus dwc-3,isolated from a potential disposal site for(ultra-)low uraniferous radioactive waste in Southwest China,were evaluated by using transmission electron microscopy(TEM),energy dispersive X-ray(EDX)analysis,Fourier transform infrared spectroscopy(FT-IR),X-ray photoelectron spectroscopy(XPS),proton induced X-ray emission(PIXE)and enhanced proton backscattering spectrometry(EPBS).Approximately60% of total uranium at an initial concentration of 10 mg/L uranium nitrate solution could be absorbed on 100 mg S.sporoverrucosus dwc-3 with an adsorption capacity of more than3.0 mg/g(wet weight)after 12 hr at room temperature at p H 3.0.The dynamic biosorption process of S.sporoverrucosus dwc-3 for uranyl ions was well described by a pseudo second-order model.S.sporoverrucosus dwc-3 could accumulate uranium on cell walls and within the cell,as revealed by SEM and TEM analysis as well as EDX spectra.XPS and FT-IR analysis further suggested that the absorbed uranium was bound to amino,phosphate and carboxyl groups of the cells.Additionally,PIXE and EPBS results confirmed that ion exchange also contributed to the adsorption process of uranium.

引用

页码：162 / 171

页数：10

共 36 条

[1] Growth and metal uptake of energy sugarcane （Saccharum spp.） in different metal mine tailings with soil amendments[J]. Xin Zhang,Yongguan Zhu,Yuebin Zhang,Yunxia Liu,Shaochun Liu,Jiawen Guo,Rudan Li,Songlin Wu,Baodong Chen.Journal of Environmental Sciences. 2014(05)
[2] Biosorption of cesium（Ⅰ） from aqueous solution by a novel exopolymers secreted from Pseudomonas fluorescens C-2: Equilibrium and kinetic studies[J]. Yanli Mao 1,2 , Hongwei Hu 2 , Yongsheng Yan 1, 1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China. 2. School of Environmental and Municipal Engineering Department, Henan University of Urban Construction, Pingdingshan 467000, China.Journal of Environmental Sciences. 2011(07)
[3] Resistance and biosorption mechanism of silver ions by Bacillus cereus biomass[J]. Li Li,Qing Hu,Jinghai Zeng,Hongyan Qi,Guoqiang Zhuang Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China..Journal of Environmental Sciences. 2011(01)
[4] Biosorption of uranium on Bacillus sp. dwc-2: preliminary investigation on mechanism[J] . Xiaolong Li,Congcong Ding,Jiali Liao,Tu Lan,Feize Li,Dong Zhang,Jijun Yang,Yuanyou Yang,Shunzhong Luo,Jun Tang,Ning Liu.Journal of Environmental Radioactivity . 2014
[5] Biosorption behavior and mechanism of thorium on Streptomyces sporoverrucosus dwc-3
Ding, Congcong
Feng, Su
Cheng, Wencai
Zhang, Jie
Li, Xiaolong
Liao, Jiali
Yang, Yuanyou
An, Zhu
Luo, Shunzhong
Yang, Jijun
Tang, Jun
Liu, Ning
[J]. JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2014, 301 (01) : 237 - 245
[6] Sugarcane bagasse cellulose fibres and their hydrous niobium phosphate composites: synthesis and characterization by XPS, XRD and SEM[J] . P. H. F. Pereira,H. J. C. Voorwald,M. O. H. Cioffi,M. L. C. P. Silva,A. M. B. Rego,A. M. Ferraria,Maria Norberta Pinho.Cellulose . 2014 (1)
[7] Bioremediation of uranium-contaminated groundwater: a systems approach to subsurface biogeochemistry[J] . Kenneth H Williams,John R Bargar,Jonathan R Lloyd,Derek R Lovley.Current Opinion in Biotechnology . 2013 (3)
[8] Mechanism of uranium（VI） uptake by Saccharomyces cerevisiae under environmentally relevant conditions: Batch, HRTEM, and FTIR studies[J] . Xia Lu,Xiao-jiao Zhou,Tie-shan Wang.Journal of Hazardous Materials . 2013
[9] Bioaccumulation characterization of zinc and cadmium by Streptomyces zinciresistens , a novel actinomycete[J] . Yanbing Lin,Xinye Wang,Baoping Wang,Osama Mohamad,Gehong Wei.Ecotoxicology and Environmental Safety . 2011
[10] Uranium and Fungi[J] . GeoffreyM. Gadd,Marina Fomina.Geomicrobiology Journal . 2011 (5-6)

← 1 2 3 4 →