Fe (ii) adsorption on Ucides Cordatus crab shells

AUTOR(ES)

Porpino, Karina Karla Pacheco, Barreto, Maria da Conceição Silva, Cambuim, Karina Beltrão, Carvalho Filho, José Rodrigues de, Toscano, Ilda Antonieta Salata, Lima, Micheline de Azevedo

FONTE

Química Nova

DATA DE PUBLICAÇÃO

2011

RESUMO

In this study Ucides cordatus crab shells were utilized as Fe (II) sorbent as material of low cost and simple preparation. Values of pH of standard solution, biosorbent mass, particles size, contact time (t c) and initial concentration of the standard solution were optimized. The best conditions were pH = 2.00, t c = 840 min and Mc = 0.25 g. The kinetic pseudo first-order model displayed the best description of the adsorption process and the equilibrium study showed that the Langmuir model better describes the adsorption of the Fe (II). There is great affinity between the Fe (II) and the biosorbent.

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