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

Química Nova

Fávere, Valfredo Tadeu de¹  Universidade Federal de Santa Catarina, Curitibanos, Brasil¹  Laus, Rogério¹  Universidade Federal de Santa Catarina, Florianópolis, Brasil¹  Pedrosa, Rozangela Curi¹  Geremias, Reginaldo¹ 

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 aimed the 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. Data from kinetic and equilibrium of the adsorption of H3O+ followed the pseudo second-order and Langmuir isotherm models. The maximum adsorption capacity of H3O+ was 316 mmol kg-1. The adsorbent removed 100% of Al (III), 100% of Fe (III) and 89% of Mn (II), suggesting its use as an alternative for the treatment of acid mine drainage.

【 授权许可】

Unknown