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

J. L. Zhou; C. J. Banks

doi:10.1080/09593339109385080

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

J. L. Zhou, C. J. Banks

Research output: Journal Publication › Article › peer-review

43 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	859-869
Number of pages	11
Journal	Environmental Technology (United Kingdom)
Volume	12
Issue number	10
DOIs	https://doi.org/10.1080/09593339109385080
Publication status	Published - Oct 1991
Externally published	Yes

Keywords

Decomposition
Fungi
Humic acid
Kinetics
Uptake

ASJC Scopus subject areas

Environmental Chemistry
Water Science and Technology
Waste Management and Disposal

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10.1080/09593339109385080

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title = "Removal of humic acid fractions by Rhizopus arrhizus: Uptake and kinetic studies",

abstract = "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.",

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author = "Zhou, \{J. L.\} and Banks, \{C. J.\}",

year = "1991",

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volume = "12",

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TY - JOUR

T1 - Removal of humic acid fractions by Rhizopus arrhizus

T2 - Uptake and kinetic studies

AU - Zhou, J. L.

AU - Banks, C. J.

PY - 1991/10

Y1 - 1991/10

N2 - 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.

AB - 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.

KW - Decomposition

KW - Fungi

KW - Humic acid

KW - Kinetics

KW - Uptake

UR - https://www.scopus.com/pages/publications/0026048660

U2 - 10.1080/09593339109385080

DO - 10.1080/09593339109385080

M3 - Article

AN - SCOPUS:0026048660

SN - 0959-3330

VL - 12

SP - 859

EP - 869

JO - Environmental Technology (United Kingdom)

JF - Environmental Technology (United Kingdom)

IS - 10

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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