Coal mining waste as adsorbent for removal of acidity, Fe (III), Al (III) and Mn (II) in acid drainage

Quimica nova

Geremias, Reginaldo¹  Fávere, Valfredo Tadeu de²  Laus, Rogério²  Pedrosa, Rozangela Curi² 

[1] Universidade Federal de Santa Catarina, Curitibanos, Brasil;Universidade Federal de Santa Catarina, Florianópolis, Brasil

关键词: coal mining waste;    adsorption H3O+;    removal metallic ions.;   

DOI  :  10.1590/S0100-40422010000800011

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

This study aimedthe use of coal mining waste as a new adsorbent for H3O+and removal of Al (III), Fe (III) and Mn (II) from acid mine drainage. Datafrom kinetic and equilibrium of the adsorption of H3O+followed the pseudo second-order and Langmuir isotherm models. The maximum adsorptioncapacity of H3O+ was 316 mmol kg-1. The adsorbentremoved 100% of Al (III), 100% of Fe (III) and 89% of Mn (II), suggesting itsuse as an alternative for the treatment of acid mine drainage.

【 授权许可】

CC BY