Please use this identifier to cite or link to this item: http://repository.elizadeuniversity.edu.ng/handle/20.500.12398/173
Title: Chromium (VI) biosorption properties of multiple resistant bacteria isolated from industrial sewerage
Authors: Oyetibo, Ganiyu O.
Ilori, Matthew O.
Obayori, Oluwafemi S.
Amund, O. O.
Keywords: Biosorption
Industrial wastewater
Heavy metal
Chromium (VI)
Resistant bacteria
Issue Date: Aug-2013
Publisher: Springer Netherlands
Citation: Oyetibo, G. O., Ilori, M. O., Obayori, O. S., & Amund, O. O. (2013). Chromium (VI) biosorption properties of multiple resistant bacteria isolated from industrial sewerage. Environmental monitoring and assessment, 185(8), 6809-6818.
Abstract: Chromium (VI) [Cr (VI)] biosorption by four resistant autochthonous bacterial strains was investigated to determine their potential for use in sustainable marine water-pollution control. Maximum exchange between Cr (VI) ions and protons on the cells surfaces were at 30–35 °C, pH 2.0 and 350–450 mg/L. The bacterial strains effectively removed 79.0–90.5 % Cr (VI) ions from solution. Furthermore, 85.3–93.0 % of Cr (VI) ions were regenerated from the biomasses, and 83.4–91.7 % of the metal was adsorbed when the biomasses was reused. Langmuir isotherm performed better than Freundlich isotherm, depicting that Cr (VI) affinity was in the sequence Rhodococcus sp. AL03Ni > Burkholderia cepacia AL96Co > Corynebacterium kutscheri FL108Hg > Pseudomonas aeruginosa CA207Ni. Biosorption isotherms confirmed that Rhodococcus sp. AL03Ni was a better biosorbent with a maximum uptake of 107.46 mg of Cr (VI) per g (dry weight) of biomass. The results highlight the high potential of the organisms for bacteria-based detoxification of Cr (VI) via biosorption.
URI: https://doi.org/10.1007/s10661-013-3066-x
http://repository.elizadeuniversity.edu.ng/handle/20.500.12398/173
Appears in Collections:Research Articles

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