Lead(II) removal in continous systems by vapor activated carbon

Química Nova

Carvalho, Wagner Alves¹  Figueiredo, Flávia Camargo Alves¹  Universidade Federal do ABC, Santo André, Brasil¹  Zanin, Cristiane Imenes de Campos Bueno¹  Universidade Estadual de Campinas, Campinas, Brasil¹ 

关键词: activated carbon;    lead(II);    column adsorption.;   

DOI  :  10.1590/S0100-40422009000900015

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Fixed-bed column studies were undertaken to evaluate the performance of a commercial Brazilian activated carbon in removing Pb(II) from aqueous environment. Breakthrough points were found out for the metal adsorption by varying different operating parameters like feed concentrations (10 and 20 mg L-1) and bed heights (0.5, 1.5 and 2.8 cm). A good agreement was observed between the experimental data and the values predicted by the bed depth service time (BDST) model. Regeneration of the exhausted columns was possible with HCl, and the adsorption capacity was maintained after three adsorption-desorption cycles.

【 授权许可】

Unknown