<b>Treatment of acidic dyes solutions by adsorption in soybean meal</b> - doi: 10.4025/actascitechnol.v34i1.10434
<p class="aresumo">In this study, we tested the potential use of a natural sorbent based on soybean meal from oil extraction in the treatment of solutions containing the acid dyes: yellow Erionyl RXL, navy blue Erionyl R and red Erionyl A-3B, used to dye polyamide fibers. To that end...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Maringá
2011-11-01
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| Series: | Acta Scientiarum: Technology |
| Subjects: | |
| Online Access: | http://periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/10434 |
| Summary: | <p class="aresumo">In this study, we tested the potential use of a natural sorbent based on soybean meal from oil extraction in the treatment of solutions containing the acid dyes: yellow Erionyl RXL, navy blue Erionyl R and red Erionyl A-3B, used to dye polyamide fibers. To that end, adsorption studies were performed under different conditions of temperature, adsorbent concentrations, pH values, and color mixes (two- and three-color) on dye solutions produced in laboratory. Soybean meal showed great ability to remove color, especially in solutions with pH 4 and 6 at 60°C and containing 10 g L<sup>-1</sup> of adsorbent. Considering that values of adsorption efficiency ranged between 74 and 99%, depending on the dye and treatment conditions, soybean meal proved to be an alternative material for the adsorption of acidic dyes.</p><p class="akeyword"> </p> |
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| ISSN: | 1806-2563 1807-8664 |