Humic acid removal from water by biosorption
Humic acid removal from water by biosorption
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.
humic acid, adsorption, fungal biomass, biosorption, chitin/chitosan
727-737
Zhou, J.L.
be3b76f9-73c8-4359-aed2-0c28c220cf0b
Banks, C.J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
August 1992
Zhou, J.L.
be3b76f9-73c8-4359-aed2-0c28c220cf0b
Banks, C.J.
5c6c8c4b-5b25-4e37-9058-50fa8d2e926f
Zhou, J.L. and Banks, C.J.
(1992)
Humic acid removal from water by biosorption.
Environmental Technology, 13 (8), .
(doi:10.1080/09593339209385204).
Abstract
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.
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Published date: August 1992
Keywords:
humic acid, adsorption, fungal biomass, biosorption, chitin/chitosan
Identifiers
Local EPrints ID: 74916
URI: http://eprints.soton.ac.uk/id/eprint/74916
ISSN: 0959-3330
PURE UUID: c5bb5059-2e80-4ffc-a73d-f6ecfe4c47de
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:39
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Author:
J.L. Zhou
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