Groundwater Quality and Identification of Hydrogeochemical Processes within University of Lagos, Nigeria

Odukoya, Abiodun M.; Folorunso, Adetayo Femi; Ayolabi, Elijah A.; Adeniran, Ezekiel Adelere

doi:10.4236/jwarp.2013.510096

Cited by 20 publications

(7 citation statements)

References 15 publications

(16 reference statements)

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“…The concentration of nickel (Ni) in the water samples ranged from 0.01 to 0.07 mg/l. The values obtained are similar to those reported by Eni and Efiong (2011) and Odukoya et al (2013) in their respective works in parts of southern Nigeria. According to Pratt and Suarez (1990), Ni value of 0.20 mg/ l is the recommended maximum level.…”

Section: Resultssupporting

confidence: 81%

Assessment of surface water quality of inland valleys for cropping in SW Nigeria

Aboyeji

Ogunkoya

2015

Appl Water Sci

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Inland valley agro-ecosystems which are a category of wetlands have potential for sustainable crop production relative to uplands. A major challenge to their utilisation in the study area is their heterogeneity in hydrology, morphology, soil types and agro-economy. The study assessed the surface water quality of three typologies of the agro-ecosystems-amphitheatre-like valley-heads (Am), valley-side (VS), and low depression (LD)-for cropping. Surface water of six sites were sampled during the wet and dry seasons. The physicochemical properties and metal concentrations of the samples were analysed. Descriptive statistics and water quality indices were used to assess the suitability of the waters of the agro-ecosystems for cropping. Results showed that the valleys have neutral to slightly alkaline waters. Values of physicochemical parameters are generally within the acceptable range for cropping. The concentration of major cations varied across the inland valley types, but exhibited similar characteristics within each valley. The dominance of the major cations is in the order of Na [ Ca [ K [ Mg. ANOVA results indicated that there is no significant difference in the concentration of heavy metals across the valleys (F = 2.044, p = 0.138, a = 0.05). Generally, most of the physicochemical parameters and trace metals have low concentrations and are non-toxic to plants. Values of water quality indices (sodium adsorption ratio, soluble sodium percentage, total dissolved solids and permeability index) indicated that the concentrations of minerals in waters across the valley typologies are generally within permissible limits for cropping.

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Section: Resultssupporting

confidence: 81%

Assessment of surface water quality of inland valleys for cropping in SW Nigeria

Aboyeji

Ogunkoya

2015

Appl Water Sci

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“…This suggests that the groundwater of some inland valleys may not be suitable for irrigation. This result is close to Odukoya et al (2013) results, who found that 33% of groundwater samples had MAR less than 50%. However, the result differs from those of Talabi et al (2014), who found that water samples were generally below the MAR value of 50%.…”

Section: Indexsupporting

confidence: 91%

Assessment of Groundwater Quality of Selected Inland Valley Agro-ecosystems for Irrigation in Southwest Nigeria

Aboyeji

Ogunkoya

2015

EREM

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The study assessed the quality of groundwater of 6 inland valley (IV) agro-ecosystems with a view to establishing their characteristics for cropping in the derived savannah of southwest Nigeria. Water samples were collected in piezometers during the rainy and dry seasons and analysed for physicochemical and heavy metal properties. Major water quality indices and comparison with stipulated standards were used to determine the usability of the waters for irrigation. The study showed that the waters were generally neutral to slightly alkaline, with the dominance structure of the major cations and anions in the order of Na + > Ca 2+ > K + > Mg 2+ and Cl-> SO4 2-> HCO3-> CO3. The concentration of heavy metals was generally within the recommended limits for most crops grown in the study area. Major water quality indices (sodium adsorption ratio, soluble sodium percentage, total dissolved solids, permeability index, magnesium adsorption ratio, Kelly's ratio and residual sodium bicarbonate) are generally within the levels acceptable for crop irrigation. Kruskal-Wallis H test (2-tailed) showed that there was no statistically significant difference in the water quality parameters/indices between the inland valley sites, P = 0.935. The groundwater of inland valley agro-ecosystems of the study area is generally suitable for agricultural utilisation.

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“…The hydrogeochemical processes that are responsible for altering the chemical composition of groundwater vary with respect to space and time. Therefore, hydrogeochemical study is a vital tool for assessing its quality (Odukoya et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Assessment of groundwater facies in Wates Coastal Area, Kulon Progo, Yogyakarta, Indonesia

Thin

Hendrayana

Wilopo

et al. 2018

J.Degrade.Min.Land Manage.

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:The groundwater quality in Wates coastal area is generally a good category but there are high salinity values at some locations. The chemical quality of groundwater from place to place is different. The difference of water quality is a major problem in the study area. A total of 27 groundwater samples were collected in August, 2017. Geochemical signatures of groundwater were used to analyze the major ionic concentrations in the groundwater, to identify the dominant hydrogeochemical processes, and to determine the relationship between groundwater flow and spatial distribution of water types. Hierarchical Cluster analysis and Schoeller diagram, Gibbs plots, Scatter diagrams, and Piper Trilinear diagram were employed to evaluate the hydrogeochemical evolution of groundwater. In Schoeller diagrams, the relative tendency of ions in meq/L shows Na + > Mg 2+ > Ca 2+> K + and HCO 3 ->Cl -> SO 4 2-trends, typically in saline water. Gibbs diagram reveals that the groundwater chemistry is mainly controlled by rock weathering with secondary contribution from evaporation source. Based on the results of Hierarchical Cluster analysis and Piper diagram, dominant hydrogeochemical facies in the study area are Ca-HCO 3 , Na-Cl, and Ca-Na-HCO 3 types. Ca-HCO 3 facies are almost throughout the study area and the evolution of groundwater was mainly controlled by the silicate weathering process. Na-Cl water types are grouping in the study area influenced by cation exchange and evaporation processes, while Ca-Na-HCO 3 types are locally grouping with silicate weathering and cation exchange processes. The geology implies that common silicate minerals are found everywhere in the study area. In fact, the distributions of groundwater facies are related to the local geology, which may result in different hydrochemical processes. In addition, lithology is very influential on the existence of groundwater in the study area.

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Groundwater Quality and Identification of Hydrogeochemical Processes within University of Lagos, Nigeria

Cited by 20 publications

References 15 publications

Assessment of surface water quality of inland valleys for cropping in SW Nigeria

Assessment of surface water quality of inland valleys for cropping in SW Nigeria

Assessment of Groundwater Quality of Selected Inland Valley Agro-ecosystems for Irrigation in Southwest Nigeria

Assessment of groundwater facies in Wates Coastal Area, Kulon Progo, Yogyakarta, Indonesia

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