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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.18 [2011] >
IJCT Vol.18(1) [January 2011] >
| Title: | Comparative study on biosorption of Zn(II), Cu(II) and Cr(VI) from textile dye effluent using activated rice husk and activated coconut fibre |
| Authors: | Gopalakrishnan, K
Jeyadoss, T |
| Keywords: | Biosorption
Zinc
Copper
Chromium
Textile dye effluent |
| Issue Date: | Jan-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | This
paper reports the results of the study on the performance of the low cost
adsorbents such as activated rice husk (ARH) and activated coconut fibre (ACF)
in removing the heavy metals such as Zn(II), Cu(II) and Cr(VI) from textile dye
effluent. Biosorption studies are carried out through various parameters such
as adsorbent dosage, pH and contact time. Removal of heavy metal ions
from the textile dye effluent increases with increase in adsorbent dosage. In
ARH, at 50 g/L the maximum of 62%, 68% and 65% removal of Zn(II), Cu(II) and
Cr(VI) are obtained respectively, whereas, in ACF, at
50 g/L the maximum of 64%, 67% and 72% removal of Zn(II), Cu(II) and Cr(VI) are
obtained respectively. In the effect of pH, the maximum removal of metal
ions occurs at pH 1-3 for both the adsorbents. In contact time, the
maximum removal of heavy metal ions is observed at optimum time of 300 min. The
maximum removal of heavy metal ions from the textile dye effluent using ARH and
ACF is evaluated successfully through the percentage of seed germination of Vigna mungo L with the treated
adsorbents. On comparison, ACF is good adsorbent when compared with ARH. |
| Page(s): | 61-66 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.18(1) [January 2011]
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