International Journal of Advanced Materials Research
Articles Information
International Journal of Advanced Materials Research, Vol.1, No.3, Jul. 2015, Pub. Date: Jun. 24, 2015
A Re-Appraisal of Groundwater Quality in Parts of Central Benue Trough, Nigeria
Pages: 102-112 Views: 817 Downloads: 441
[01] Okonkwo Austin Chukwuemeka, Department of Geology and Mining, Enugu State University of Science and Technology, Enugu, Nigeria.
A re-appraisal of groundwater quality in some parts of Central Benue Trough had been carried out. Areas sampled are within the Lafia-Keana in the Central Benue Trough. Water wells in the area tap the shallow Lafia Formation which is made up of whitish to brownish, feldsparthic and ferroginized sandstone. Physic-chemical analyses indicate pH range (4.7 – 8.20) from acidic through neutral to moderate alkalinity. Total Dissolved Solids (TDS) values were high in most locations with their corresponding high electrical conductivity (EC). Total hardness (TH) shows that 75% of the groundwater is classified as very hard as a result of high calcium content. Piper Trilinear diagram show Calcium – Bicarbonate water type. High sulphate ion enrichment may be due to the ionic reaction from coaly formation underlying the area. Sodium Adsorption Ration (SAR) show excellent for irrigation purpose. Calcite saturation analysis shows that most of the wells are oversaturated with respect to calcite. Generally the groundwater in the study area is greatly impaired when compared with the WHO standard limits for drinking water. Possible ways of improving the groundwater quality are through aeration method and installing a workable water treatment plant.
Hydro Geochemistry, Sodium Absorption Ratio, Calcite Saturation index and Groundwater Quality
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