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Braz. arch. biol. technol ; Braz. arch. biol. technol;64: e21200741, 2021. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1360190

ABSTRACT

Abstract Peanut shell (PS) which is an excessive waste-product from agricultural processes, it can be recycled to a natural adsorbent for example it uses as removal dyes. Synthetic dye effluent without improperly discharged from industries to the river cause wastewater and damage to living organisms, especially, anionic dyes are difficult removed by conventional treatments such as biological, chemical, oxidation, and physical-filtration. However, an adsorption treatment is widely used for decolorization of dyes and give the best results for removal of various types of dissolved coloring materials. This research was used Eosin Y (EO) for the anionic model of dyeing wastewater and used PS for agrowaste adsorbent. The purpose of this study was investigated the efficiency adsorption of EO removal by PS. This efficiency adsorption was measured by different PS dosages, contact times, adsorbate concentration and equilibrium data. The results can be concluded that the PS had the efficiency adsorption of EO removal due to the equilibrium adsorption capacity (qe) and the highest dose of PS were balanced to adsorption of dye. The highest EO removal percentage was found in 87.7%, the qe was 0.351 mg g-1 and can adsorb from 10 mg L-1 to 1.23 mg L-1 in 25 g L-1 of PS dose at 30 minutes. In addition, the PS structure was found in multi-layer and many porous which is suitable for adsorbent. The morphological examination of PS was shown before and after adsorption that not changed. Therefore, PS might be an alternative choice for removal dye, and be used for the recycle adsorbent agrowaste as a commercial product for adding their values.

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