Application of Brazilian sawdust samples for chromium removal from tannery wastewater

作者：Prado Alexandre G S^*; Moura Aline O; Andrade Romulo D A; Pescara Igor C; Ferreira Valeria S; Faria Elaine A; de Oliveira Augusto H A; Okino Esmeralda Y A; Zara Luiz F

来源：Journal of Thermal Analysis and Calorimetry, 2010, 99(2): 681-687.

DOI：10.1007/s10973-009-0284-0

• Calorimetry
• Chromium
• Sawdust
• Tannery

Brazilian sawdust samples (Caryocar spp.; Manilkara spp.; and Tabebuia spp.) have been used for Cr(VI) adsorption from water. The series of adsorption isotherms were adjusted to modified Langmuir equation. Thermodynamic data of interactions were studied by the calorimetric titration of Cr(VI) in aqueous solution. All liquid/solid interface adsorptions were entalpically and entropically driven. These sawdust samples were also used to remove chromium from tannery wastewater. The application of Caryocar spp.; Manilkara spp.; and Tabebuia spp. reduced the amount of chromium from 2.11 +/- 0.18 mg L(-1) to 1.15 +/- 0.10; 0.29 +/- 0.02 and 0.26 +/- 0.02 mg L(-1), respectively.

• 出版日期2010-2