Statistical Optimization of Process Parameters for Cr (VI) Biosorption onto Mixed Cultures of Pseudomonas aeruginosa and Bacillus subtilis

Wiley - Tập 37 Số 4-5 - Trang 319-327 - 2009
Tarangini Korumilli1, Arvind Kumar, Gyana R. Satpathy2, Vikas Kumar Sangal3
1Department of Chemical Engineering, National Institute of Technology, Orissa, India
2Department of Biotechnology and Medical Engineering, National Institute of Technology, Orissa, India.
3Department of Chemical Engineering, Thapar University, Punjab, India.

Tóm tắt

AbstractIn the present study, response surface methodology (RSM) was employed to investigate the effects of different operating conditions on the removal of hexavalent chromium (Cr (VI)) onto mixed cultures of Pseudomonas aeruginosa and Bacillus subtilis (MCOPAABS) using biosorption processes. Box‐Behnken design (BBD) was used for optimization of the biosorption process and to evaluate the effects and interactions of the process variables, i. e., biomass concentration, pH, temperature and contact time on the removal of Cr (VI). A synthetic aqueous solution with a Cr (VI) concentration of 10 mg/L was used in the experimental study as a fixed input variable. The optimum conditions for maximum uptake (1.44 mg/g) of Cr (VI) onto the biosorbent were established as 0.5 g/L biosorbent dosage, pH 2 for the aqueous solution, 32°C temperature and 23 min contact time.

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Tài liệu tham khảo

V.Ducros nChromium Metabolism in Humans(Eds: S. Canali F. Tittarelli P. Sequi) Angeli Milan Italy1997 pp. 181.

Carson B. L., 1986, Toxicology and Biological Monotoring of metals in Humans, Atmos. Environ., 21, 723

10.1016/j.jhazmat.2004.12.004

10.1016/S0041-008X(03)00011-5

10.1016/j.jhazmat.2006.11.041

10.1016/S0026-0576(00)80384-0

10.1016/0960-8524(95)00072-1

10.1016/S0043-1354(00)00389-4

10.1061/(ASCE)0733-9372(1997)123:5(461)

10.1016/j.jhazmat.2007.10.032

10.1016/S0043-1354(03)00293-8

10.1016/S0032-9592(99)00005-9

10.1016/S0045-6535(02)00089-9

10.1016/S0304-3894(03)00109-2

10.1016/j.bej.2005.01.011

10.1016/j.mineng.2004.11.002

10.1016/S0269-7491(98)00174-2

10.1016/S0043-1354(01)00330-X

10.1016/j.colsurfa.2006.12.060

10.1016/j.cej.2007.04.038

10.1081/DIS-200027327

10.1021/es035329

10.1039/b004128i

10.1021/ie0008575

10.1002/jctb.1119

10.2323/jgam.52.179

10.1061/(ASCE)1090-025X(2005)9:3(147)

10.1016/j.cej.2007.03.004

10.1016/j.jhazmat.2007.11.071

10.1016/j.jhazmat.2007.10.070

10.1016/j.cej.2006.09.002

10.1016/j.jhazmat.2004.12.022

10.1016/j.jhazmat.2006.05.051

10.1016/j.seppur.2007.03.015

10.1016/j.mineng.2004.11.002

10.1016/j.jhazmat.2006.07.026

10.1016/j.procbio.2004.09.008

10.1016/S0043-1354(01)00138-5

10.1016/j.chemosphere.2007.08.015

10.1016/j.jhazmat.2008.06.104

Dikshit V. P., 1989, Removal of chromium (VI) by adsorption using sawdust, Nat. Acad. Sci. Lett., 419

10.1016/0960-8524(94)90189-9

10.1080/09593339309385290

10.1016/0043-1354(93)90220-C

10.1016/S0960-8524(03)00088-9

10.1016/j.jhazmat.2007.04.126

10.1016/S0304-3894(02)00054-7

L. S.Clesceri A. E.Greenberg A. D.Eaton inStandard Methods for the Examination of Water and Waste Water 20th ed. American Public Health Association Washington DC1998.

D. L.Massartet al. Handbook of Chemometrics and Qualimetrics Part A Elsevier Amsterdam2003.

10.1016/j.talanta.2004.01.015

10.1002/ceat.200700084

10.1016/j.jhazmat.2007.10.031

10.1016/j.jhazmat.2008.01.088

10.1214/aoms/1177707047

M.Kumaret al. Treatment of biodigester effluent by electrocoagulation using iron electrodes J. Hazard. Mater.2009 in press. DOI: 10.1016/j.jhazmat.10.041.

10.1080/03067310500117350

10.1016/j.jhazmat.2005.10.002

10.1016/S0731-7085(01)00659-8

M.Evans Optimization of Manufacturing Processes: A Response Surface Approach Carlton House Terrace London2003.

10.1016/j.jhazmat.2007.07.088

10.1016/S0958-9465(02)00116-6

10.1016/j.jmatprotec.2005.02.060

Eneida S. C., 2002, Biosorption of chromium(III) by Sargassum sp. Biomass, Electronic J. Biotechnol., 5, 133