Saritha, Easwaramoorthi (2008) Bio adsorption of mercury using Aspergillus niger. Bio adsorption of mercury using Aspergillus niger, 3 (2). pp. 111-116. ISSN 0973-4759

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Abstract

The increasing awareness of dye toxicity and the biomagnifications through food chain are responsible
for the demand for detoxification of industrial effluents prior to their discharge into natural streams.
The potential of using fungal biosorbents has received considerable attention since this represents a
significant by-product from several fermentations. In batch mode studies, the parameters such as
contact time, adsorbent dosage andpHwereanalyzedto optimize thebioadsorptionofmercury.Autoclaved
Aspergillus nigerwas found to be efficient inmercury removal. Studies on adsorption isotherms revealed
that adsorption of mercury by the fungal mycelium followed the Langmuir model and the process of
adsorption is favourable.By usingLangmuir isotherm, the adsorption capacity (Qo) of live and autoclaved
adsorbents was determined with 0.80 and 0.75mg/g, respectively. The adsorption rate constants (K
ad
)
were calculated from the slope of the linear plots andwere observed to be in the range of 0.035 to 0.046
and 0.030 to 0.038 x10-2 L/min, respectively for live and autoclaved mycelium.

Item Type: Article
Uncontrolled Keywords: Biosorption, Adsorbents, Langmuir, Mercury, Aspergillus niger
Divisions: PSG College of Arts and Science > Department of Biotechnology
Depositing User: Mr Team Mosys
Date Deposited: 29 Dec 2023 03:48
Last Modified: 03 Jan 2024 04:41
URI: http://ir.psgcas.ac.in/id/eprint/2079

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