Remoção de metais de solução aquosa usando bagaço de caju

Química Nova

Sarah A. Moreira²  Francisco W. Sousa²  André G. Oliveira²  Ronaldo F. Nascimento¹  Edy Sousa De Brito¹ 

[1] ,Universidade Federal do Ceará Departamento de Engenharia Hidráulica e Ambiental Fortaleza CE ,Brasil

关键词: adsorption;    heavy metals;    bagasse of cashew;   

DOI  :  10.1590/S0100-40422009000700007

来源: SciELO

【 摘 要 】

The metal ions removal on cashew bagasse, a low-cost material, has been studied by batch adsorption. The parameters chemical treatment, particle size, biosorbent concentration, and initial pH were studied. In this study the maximum ions removal was obtained on the cashew bagasse treated with 0.1 mol/L NaOH/3 h, at optimum particle size (20-59 mesh), biosorbent concentration (50 g/L) and initial solution pH 5. The kinetic study indicated that the adsorption metal follows pseudo-second order model for a multielementary system and equilibrium time was achieved in 60 min for all metal ions.

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License