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Adsorption of Pb<sup>2+</sup> and Cu2+ ions from aqueous solutions by mango tree (<i>Mangifera indica</i>) saw dust


OA Ekpete
EN Sor
E Ogiga
JN Amadi

Abstract

The removal of heavy metal ions Cu2+ and Pb2+ from aqueous solution using mango tree (Mangifera indica) saw dust as adsorbent under different experimental conditions was investigated. The effects of pH,
contact time, temperature, adsorbent dosage and initial metal ion concentrations for the removal of Cu2+ and Pb2+ ions from aqueous solutions were studied using atomic absorption spectrophotometer. The results showed that increasing the amount of adsorbent led to an increase in the percent removal of lead and copper. The optimum pH obtained was pH 6 for copper and pH 8 for lead, with percentage removal of 99.9% Pb2+ ions and 70.1% Cu2+ ions. It was observed that Mangifera indica saw dust removed more of Pb2+ than Cu2+ ion in all the adsorption experiments.

Journal Identifiers


eISSN: 1997-342X
print ISSN: 1991-8631