The University of Southampton
University of Southampton Institutional Repository

Removal of humic acid fractions by Rhizopus arrhizus: uptake and kinetic studies

Zhou, J.L. and Banks, C.J. (1991) Removal of humic acid fractions by Rhizopus arrhizus: uptake and kinetic studies Environmental Technology, 12, (10), pp. 859-869. (doi:10.1080/09593339109385080).

Record type: Article


Humic acid components HFO-A and HPI-N were studied for their removal by Rhizopus arrhizus. The removal was stimulated by the presence of sucrose followed by pretreating biomass with formaldehyde or autoclaving. The presence of Cd2+ ions and high ionic strength in solution was found to increase the adsorptive capacity of R. arrhizus for HPO-A and HPI-N. The uptake of HPO-A and HPI-N by R. arrhizus was biphasic in nature and generally a much slower process than heavy metal biosorption. The first phase was rapid and independent of metabolic energy while the second phase was slow and dependent on metabolic energy. The infrared spectra showed no chemical reaction has occurred between cell walls and adsorbates. Physical adsorption is therefore the main mechanism of humic removal by inactive R. arrhizus.

Full text not available from this repository.

More information

Published date: October 1991
Keywords: humic acid, fungi, uptake, kinetics, decomposition


Local EPrints ID: 74929
ISSN: 0959-3330
PURE UUID: 1c536414-bdb9-4824-9013-37e5e97c3e24

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:44

Export record


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.