Purification of Heavy Metals Contaminated Groundwater by ElectroCoagulation Process Using Graphite Electrodes
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Date
2024-12-13
Journal Title
Journal ISSN
Volume Title
Publisher
The University of Tehran Press
Abstract
The application of the electro-coagulation process to the identified contaminated
groundwater at Abala community, a suburb of Ilorin metropolis in Kwara state, Nigeria,
is the subject of this study. The groundwater samples were electro-coagulated in a batch
reactor of 2.5L containing 1 litre volume of contaminated groundwater for 1 hour per run
using a DC power supply ranging from 10v to 20v at constant current 5amp and 2amp to
6amp at constant voltage 10v using graphite electrodes. The results revealed that electrocoagulation process can reduce turbidity, TDS, Electrical Conductivity, BOD, TOC,
COD, and color by 97.3 %, 91.2 %, 91.1 %, 96 %, 99.7%, 99.7%, 79.9%, and 82.96 %,
respectively. Through Atomic Absorption spectroscopy analytical study, the process also
shows removal efficiency of Manganese, Iron, and Zinc of 82.96 percent, 70.0 percent, and
95.30 percent, respectively. The outcome of the electro-coagulation process met the World
Health Organization (WHO), the United States Environmental Protection Agency (USEPA),
and the Water Environment Partnership In Asia (WEPA) criteria for both drinking water
and general industrial wastewater discharge guidelines. The electro-coagulation treatment
for contaminated groundwater was efficient and effective, therefore it is recommended in
this study for Nigerians.
Description
Heavy metals found in underground water bodies, which are major cause of pollution and have a density of more than 5 milligrams per litre (mg/l), are among these effluents (Babel and Kurniawan, 2004) The solubility of heavy metals in groundwater causes
significant environmental problems and human health risks. Although some heavy metals are
needed nutrients in very small concentrations, all heavy metals at elevated levels are harmful to
human health (Borba et al., 2006).
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Citation
Muhibbu-din, E.I.., Heekmah Oiza, J., David Pelumi, H., & Ifeoluwa Agnes, T. (2024). Purification of Heavy Metals Contaminated Groundwater by Electro-Coagulation Process Using Graphite Electrodes. Pollution, 10 (1), 32-44