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VOL. 8, ISSUE 2 (2023)
Hydrogeochemistry and sorption of heavy metals from contaminated onyeama mine waters using kaolinite clay
Authors
Ifeoma M Ugwu, Ozoko D C, Okoye O E
Abstract
Clay minerals are good
adsorbents due to its high surface area and abundant reactive sites. In this
study the removal of heavy metals from the Onyeama mine water using a sourced kaolinite clay was investigated. Two water
samples were collected from Onyeama mine audit and a nearby spring. These
samples were analyzed for arsenic, chromium, cadmium and lead to determine
their metal concentrations. The result of the analysis showed that arsenic is
40, lead is 8, cadmium is 230, and chromium is 18 times more than the maximum
permissible limit indicated by World Health Organization. Adsorption mechanisms
using the kaolinite clay was carried out as a function of
time, pH and dosage. The quantity of metals removed remain constant
irrespective of the amount of dosage added, however, after 90 minutes,
approximately 98% Cr, 92% As, 45% Cd and 42% Pb were removed. At optimum pH of 6 and after
24 hrs, the uptake of Pb, As, Cd and Cr from the contaminated mine water were
100%. The present work contributes a new, efficient methods and cheap way for
the removal of heavy metal ions from the mine.
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Pages:39-45
How to cite this article:
Ifeoma M Ugwu, Ozoko D C, Okoye O E "Hydrogeochemistry and sorption of heavy metals from contaminated onyeama mine waters using kaolinite clay". International Journal of Multidisciplinary Education and Research, Vol 8, Issue 2, 2023, Pages 39-45
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