RESUMO
This work explores the heavy metal retention capacity of materials developed from minerals that are abundant in nature, with low cost and minimum environmental impact. To accomplish this objective we have: (a) characterized commercial samples of calcite (CA) and hydroxyapatite (HAP)--including their surface properties (BET area, electrophoretic mobility, SEM, and X-ray energy dispersive spectroscopy); and, (b) qualified and quantified the interaction of Cd, Zn and Co with calcite (CaCO3) and hydroxyapatite [Ca5(PO4)3OH] through batch experiments, in a range of metal concentrations (4Assuntos
Carbonato de Cálcio/química
, Hidroxiapatitas/química
, Gerenciamento de Resíduos/métodos
, Adsorção
, Cádmio/análise
, Cádmio/química
, Cobalto/análise
, Cobalto/química
, Concentração de Íons de Hidrogênio
, Resíduos Industriais
, Troca Iônica
, Modelos Químicos
, Propriedades de Superfície
, Zinco/análise
, Zinco/química