Humic acid removal from water by biosorptton

Zhou, J.L. and Banks, C.J. (1992) Humic acid removal from water by biosorptton. Environmental Technology, 13, (8), 727-737. (doi:10.1080/09593339209385204).


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The adsorption of humic acid by Rhizopus arrhizus obeyed the Freundlich equation describing heterogeneous surface energy adsorption, and was shown to be pH and biomass concentration dependent. The fungal cell wall chitin/chitosan component had the highest adsorption capacity, followed by cell wall, whole cell then protoplast. The effects of culture age, growth medium composition and biomass pre-treatment with NaOH were assessed in relation to adsorption efficiency and capacity. The presence of metal ions in solution increased humic acid removal by R.arrhizus, this was explained by the role of ions in bridging cell wall surface charge to humic acid surface charge.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1080/09593339209385204
ISSNs: 0959-3330 (print)
1479-487X (electronic)
Keywords: humic acid, adsorption, fungal biomass, biosorption, chitin/chitosan
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Q Science > QD Chemistry
Q Science > QH Natural history > QH301 Biology
Divisions : University Structure - Pre August 2011 > School of Civil Engineering and the Environment
ePrint ID: 74916
Accepted Date and Publication Date:
August 1992Published
Date Deposited: 11 Mar 2010
Last Modified: 31 Mar 2016 13:08

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