Groundwater quality using indices for domestic and irrigation purposes in Akure, Nigeria

Elemile, Olugbenga O. and Ibitogbe, E. M. and Okikiola, B.T and Ejigboye, P.O Groundwater quality using indices for domestic and irrigation purposes in Akure, Nigeria. Results in Engineering.

Text 2 Groundwater Quality.pdf Download (5MB)

Abstract

Groundwater exploration has become more critical for agricultural and domestic purposes due to the over�exploitation, depletion and widespread pollution of surface water bodies. The study is focused on evaluating these groundwater sources for their suitability for domestic and irrigation applications, as well as a quality-based investigation of these sources. Thirty (30) boreholes were investigated across the study area Akure, Ondo State to achieve the aforemen�tioned aim. This was carried out by the analysis of physico-chemical parameters, determination of water quality index and evaluating irrigation indices. Moreover, Gibbs diagram was used to characterize ground water samples. Results: show the groundwater to be slightly acidic in nature with pH values falling below the 6.5 benchmark. According to evaluated indices, Sodium ratio also showed that 76.7% of the water samples is in “good” category, 20% is in “permissible” category, and 3.3% is in the “poor” category. the water is suitable for irrigation and can support plant yield. Based on Water Quality Index (WQI) assessment, majority of the water samples (82%) can be classified as “good”, 16% of the samples were excellent, while 2% were found to be moderate indicating that the water quality in terms of its drinking standard is generally good as obtained from this study. Data plotted in Gibbs diagram reveal that the groundwater chemistry is primarily controlled by rock-water interaction.

Actions (login required)

View Item