Response of bacterial biosorbents to chemical treatment as influenced by cell membrane structure and impact on the adsorption behaviour of dyes
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Simelane, Lwandle P.
Fosso-Kankeu, Elvis
Njobeh, Patrick
Pandey, Sadanand
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Current Science Association
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Abstract
The impact of cell membrane structure and adsorption
capacity of dyes due to chemical treatment on
Gram-positive and Gram-negative bacteria was studied.
The adsorption was found to occur through a
chemisorption mechanism. The adsorption capacity of
treated bacteria was higher (68.49-161.29 mg/g) than
untreated bacteria (9.37-29.11 mg/g) during the removal
of methylene blue. Furthermore, the treatment
allowed bacteria to adsorb methyl orange, which was
not removed by untreated bacteria. The applied
chemical treatment is therefore influenced by the cell
membrane structure and could be considered to improve
the adsorption capacity of bacteria for the removal
of dyes from polluted water
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Simelane, L.P. et al. 2018. Response of bacterial biosorbents to chemical treatment as influenced by cell membrane structure and impact on the adsorption behaviour of dyes. Current science, 114(4):826-834. [https://doi.org/10.18520/cs/v114/i04/826-834]