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JSIR Vol.71 [2012] >
JSIR Vol.71(12) [December 2012] >
| Title: | Studies on surface characterisation and isotherm modelling: Biosorption of arsenic(III) onto low cost biosorbent derived from orange peel |
| Authors: | Kamsonlain, Suantak
Balomajumder, C.
Chand, S. |
| Keywords: | As (III) ion
Biosorption
OP biomass
Optimization of parameters
Sorption isotherms |
| Issue Date: | Dec-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The paper described the removal of As(III) from
contaminated water by orange peel (OP) by a low cost biosorbent. The effects of
various parameters such as mesh size, pH, temperature, adsorbent dosage and
contact time were studied in batch experimental setup. Physiochemical analysis
of OP biomass was carried out through scanning electron microscopy (SEM) and
fourier transmission infrared spectroscopy (FTIR). It was observed that the pH
had a strong effect on biosorption capacity. At the optimum treatment
conditions of pH (7), temperature (30oC), contact time (90 min) and
adsorbent dosage (4 g), OP biomass was found to be effective for the removal of
As(III) with 82.45% sorption efficiency at a concentration of 50 mg/l As(III),
and thus uptake capacity was 1.18 mg As(III)/gm of biomass. To establish the
most appropriate correlation for the equilibrium curves, isotherm studies were
performed for As(III) ion using Freundlich and Langmuir adsorption isotherms.
Langmuir isotherm was
found to be best fitted to equilibrium sorption data
with higher linear correlation coefficient (R2 = 0.992). A low cost OP biosorbent shows a potential
and promising simple method for the removal of As(III) ion. |
| Page(s): | 810-816 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1084 (Online); 0022-4456 (Print) |
| Source: | JSIR Vol.71(12) [December 2012]
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