Characterizing toxic Cr(VI) contamination in chromite mine overburden dump and its bacterial remediation.
作者： B. Dhal , N.N. Das , H.N. Thatoi , B.D. Pandey
DOI: 10.1016/J.JHAZMAT.2013.04.050
关键词: Environmental remediation 、 Waste management 、 Pulp (paper) 、 Chromium 、 Contamination 、 Goethite 、 Chromite 、 Chemistry 、 Nuclear chemistry 、 Hexavalent chromium 、 Overburden
摘要: Cr(VI) generated due to natural oxidation of chromite mineral present in mine overburden (COB) dumps Sukinda, India, has been characterized by different physico-chemical methods. The was found be associated with goethite matrix at a contamination level 500 mg Cr(VI)kg(-1) COB. Bacillus sp. isolated from the sample exhibiting high tolerance hexavalent chromium, used for remediation overburden. process optimized while varying parameters such as pH (2-9), pulp density (10-60%) and temperature (25-40 °C). Optimal reduction more than 98% COB achieved 16 h pH∼7.0 60% (4.05 × 10(7)cells mL(-1)) absence media. exponential rate equation yielded constant value 2.14 10(-1)h(-1) density. mode bio-reduction established FT-IR, XRD, EPMA SEM-EDS studies.
sci-hub.se 参考文章(31)
Shao Hongbo, Chu Liye, Xu Gang, Yan Kun, Zhang Lihua, Sun Junna, Progress in Phytoremediating Heavy-Metal Contaminated Soils Springer Berlin Heidelberg. pp. 73- 90 ,(2011) , 10.1007/978-3-642-21408-0_4
A K Saha, Addanki S Rao, M G Bodas, M Singh, Chemical benefication of nickel overburden of Sukinda mining corporation Transactions of The Indian Institute of Metals. ,vol. 55, pp. 557- 560 ,(2002)
B. Das, R. B. Rao, J. K. Mohanty, D. S. Rao, Mineralogy and pre-concentration of the chromite overburden of the Sukinda Ultramafic Belt, Orissa, India Cim Bulletin. ,vol. 93, pp. 37- 43 ,(2000)
Yi-Tin Wang, Microbial Reduction of Chromate American Society of Microbiology. pp. 225- 235 ,(2000) , 10.1128/9781555818098.CH10
Ankita Basu, Rumpa Saha, Jayashree Mandal, Sumanta Ghosh, Bidyut Saha, Removal of hexavalent chromium by an aromatic alcohol Journal of Biomedical Science and Engineering. ,vol. 03, pp. 735- 741 ,(2010) , 10.4236/JBISE.2010.37098
F W Gilcreas, Standard methods for the examination of water and waste water. American Journal of Public Health and the Nations Health. ,vol. 56, pp. 387- 388 ,(1966) , 10.2105/AJPH.56.3.387
Y.V Swamy, B.B Kar, J.K Mohanty, Physico-chemical characterization and sulphatization roasting of low-grade nickeliferous laterites Hydrometallurgy. ,vol. 69, pp. 89- 98 ,(2003) , 10.1016/S0304-386X(03)00027-6
Bidyut Saha, Chris Orvig, Biosorbents for hexavalent chromium elimination from industrial and municipal effluents Coordination Chemistry Reviews. ,vol. 254, pp. 2959- 2972 ,(2010) , 10.1016/J.CCR.2010.06.005
Biswaranjan Dhal, Nigama Nanda Das, Banshi Dhar Pandey, Hrudaya Nath Thatoi, Environmental Quality of the Boula-Nuasahi Chromite Mine Area in India Mine Water and The Environment. ,vol. 30, pp. 191- 196 ,(2011) , 10.1007/S10230-010-0134-0
G. Godgul, K. C. Sahu, Chromium contamination from chromite mine Environmental Earth Sciences. ,vol. 25, pp. 251- 257 ,(1995) , 10.1007/BF00766754