Biossorção do corante Rodamina B por mesocarpo do coco do babaçu: estudo em batelada e em coluna

نویسندگان

چکیده

Neste estudo, a biossorção do corante Rodamina B (RhB) de solução aquosa usando mesocarpo coco babaçu (BCM) foi avaliada em batelada e operação contínua. As influências pH, tempo contato, concentração biossorvente, temperatura foram investigadas estudos batelada. Taxas mais altas remoção RhB (79,3 ± 0,49 %) obtidas pH 2.0. Os cinéticos equilíbrio indicaram que segue o modelo pseudossegunda ordem isoterma Langmuir, respectivamente. A capacidade máxima BCM estimada 111,52 mg g-1 40 °C. De acordo com isotermas Dubinin–Radushkevich (DR), da pelo é um processo físico. parâmetros termodinâmicos (ΔG < 0 ΔH > 0) sugeriram espontâneo facilitado aumento (endotérmico). O estudo contínuo realizado uma coluna leito fixo fluxo ascendente alimentada 50 L-1 vazão 4 mL min-1. modelos Yan Yoon-Nelson descreveram os dados experimentais curva ruptura excelente precisão. captação determinados como 72,45 611 min, Conclui-se biossorvente atraente para remediação fase aquosa.

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ژورنال

عنوان ژورنال: Revista Ibero-Americana de Ciências Ambientais

سال: 2022

ISSN: ['2179-6858']

DOI: https://doi.org/10.6008/cbpc2179-6858.2022.002.0009