Metal removal from aqueous solution using cashew bagasse

Química Nova

Moreira, Sarah A.¹  Sousa, Francisco W.¹  Nascimento, Ronaldo F.¹  Embrapa Agroindústria Tropical - CE, Fortaleza, Brasil¹  Oliveira, André G.¹  Brito, Edy Sousa de¹  Universidade Federal do Ceará, Fortaleza, Brasil¹ 

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

DOI  :  10.1590/S0100-40422009000700007

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown