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

Quimica nova

Figueiredo, Flávia Camargo Alves¹  Zanin, Cristiane Imenes de Campos Bueno¹  Carvalho, Wagner Alves² 

[1] Universidade Estadual de Campinas, Campinas, Brasil;Universidade Federal do ABC, Santo André, Brasil

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 columnstudies were undertaken to evaluate the performance of a commercial Brazilianactivated carbon in removing Pb(II) from aqueous environment. Breakthrough pointswere found out for the metal adsorption by varying different operating parameterslike 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 dataand the values predicted by the bed depth service time (BDST) model. Regenerationof the exhausted columns was possible with HCl, and the adsorption capacitywas maintained after three adsorption-desorption cycles.

【 授权许可】

CC BY