Assessment of hydrogeochemical characteristics of groundwater quality in the vicinity of Okpara coal and Obwetti fireclay mines, near Enugu town, Nigeria

Utom, Ahamefula U.; Odoh, B. I.; Egboka, B. C. E.

doi:10.1007/s13201-013-0080-7

Cited by 57 publications

(29 citation statements)

References 20 publications

(20 reference statements)

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“…About 89% of the groundwater samples analyzed (Table 1) in the study area gave charge balance errors less than ± 10% which is acceptable in most fresh groundwater hydrogeochemical assessment (Srinivas et al 2014;Srinivasamoorthy et al 2008;Utom et al 2013). The rest of the samples showed relatively high charge balance error greater than 10% which is probably due to low ionic strength (mean value = 0.0082) of water samples (Fritz 1994).…”

Section: Major Cations and Anionsmentioning

confidence: 90%

“…It comprises of three plots: a ternary diagram in the lower left representing the cations, another ternary diagram in the lower right representing the anions and a diamond plot in the middle representing a combination of the two ternary diagrams. The diagram was mainly employed to understand and identify different water composition or type through chemical relationships among groundwater samples (Utom et al 2013).…”

Section: Piper Diagrammentioning

confidence: 99%

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Hydrogeochemical characteristics and spatial distribution of groundwater quality in Arusha well fields, Northern Tanzania

et al. 2018

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Arusha aquifers have been exploited intensively serving as the main source of domestic water supply in the city. But the quality of groundwater is not clearly documented for future planning and management. Hydrogeochemical assessment was carried out to establish groundwater quality and its spatial distribution with the aid of geostatistical techniques. Groundwater samples were collected and analyzed for major cations and anions using conventional methods of water analysis. Well lithology and geological map were considered for hydrogeological interpretation of the area. The results of piper diagram revealed Na-K-HCO 3 water type with sodium and bicarbonate ions dominating in all samples. High fluoride concentrations and general groundwater chemistry are mainly controlled by aquifer lithology than anthropogenic activities. The levels of anthropogenic pollution indicators such as nitrate, chloride and sulfate in deep wells are generally low and most likely coming from natural sources. The geological sections indicate two potential aquifers (volcanic sediment and weathered/ fractured formation) both yield water containing significant concentration of fluoride. Fluoride concentrations were higher than WHO guidelines (1.5 mg/l) and Tanzanian standards (4.0 mg/l) by 82 and 36% of the analyzed groundwater samples, respectively. The southern part of the study area yields groundwater of better quality for human consumption than northern zones which is at high elevation on the foot of Mt. Meru. With exception of fluoride, the quality of groundwater in the study area is generally suitable for drinking purpose and other socioeconomic uses.

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Section: Major Cations and Anionsmentioning

confidence: 90%

Section: Piper Diagrammentioning

confidence: 99%

Hydrogeochemical characteristics and spatial distribution of groundwater quality in Arusha well fields, Northern Tanzania

et al. 2018

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“…The recurrent drought and concomitant decline in the groundwater levels over the years in parts of the Palamu district has necessitated the need to monitor the groundwater quality of this region, so that proper management may be done to make water available even in times of water scarcity. The water scarcity resulting from increasing demand for water over the years in different parts of the world has been aggravated by the problems of water pollution or contamination (Utom et al 2013). …”

Section: Introductionmentioning

confidence: 99%

Impact of geology and geomorphology on fluoride contaminated groundwater in hard rock terrain of India using geoinformatics approach

et al. 2017

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The present study demonstrates a GIS-based spatial evaluation of fluoride contamination (FC) in groundwater vis-a-vis geology and geomorphology of the area using analytical hierarchy process and weighted sum method in Palamu district of Jharkhand. The integration and analyses of the various thematic databases along with the field sampled fluoride data proved useful in delineating the FC zones. The FC index ranged between 141 and 707, and was classified into four zones, viz., low, moderate, high, and very high zones of FC. The FC index map showed that a total of 49.75% of the study area lies between high to very high FC zone. The very high FC zone is found in the moderately weathered plateau with granitic terrain, whereas the high and moderately FC zones covering 49.31 and 36.41% of the study area are dominated by plateau weathered shallow, pediment-inselberg complex, pediplain moderately weathered, pediplain shallow weathered, and inselberg which have high fluoride. The lowest FC zone covers an area of 193.27 sq. km (13.84%). The spatial analysis of geology with fluoride showed that groundwater within granitic gneiss exhibits high FC followed by granitoid gneiss and alluvium. Geomorphologically highest FC was recorded in plateau weathered moderate (91.67%) followed by plateau weathered shallow (71.43%), flood plain (41.76%), inselberg (27.27%), and pediment (25%). The spatial analysis of groundwater yield with fluoride showed that regions having good yield exhibit maximum FC thereby accelerating the vulnerability of the population to fluorosis.

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“…Further oxidation of ferrous sulphate produces ferric sulphate according to the relation (Singh and Mridula 1985;Utom et al 2013):…”

Section: Coal Mining Activities Geochemical Characterization Hydrogmentioning

confidence: 99%

Effects of coal mining on the water resources in the communities hosting the Iva Valley and Okpara Coal Mines in Enugu State, Southeast Nigeria

Obiadi

Akudinobi

et al. 2016

Sustain. Water Resour. Manag.

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Coal mining in the Enugu area of Nigeria has generated a lot of mine waste that has been dumped in landfills and surface dumps chosen for convenience and proximity to the waste source rather than environmental, geologic or engineering considerations. Environmental degradation and groundwater contamination has resulted. Structural analysis of the area shows that the geological formations are fractured with a dominant fracture strike in the E-W direction. These fractures, which are known to influence the flow direction of the rivers in the area, provide significant seepage pathways for contaminant transport. An azimuthal square array resistivity survey confirmed the presence of these fractures in the subsurface as well as their function as seepage pathways. Surface water resources and groundwater exploited from a shallow well has been shown to be contaminated with acidity, iron, and sulphate. The water must, therefore, be treated before consumption by the local inhabitants.

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Assessment of hydrogeochemical characteristics of groundwater quality in the vicinity of Okpara coal and Obwetti fireclay mines, near Enugu town, Nigeria

Cited by 57 publications

References 20 publications

Hydrogeochemical characteristics and spatial distribution of groundwater quality in Arusha well fields, Northern Tanzania

Hydrogeochemical characteristics and spatial distribution of groundwater quality in Arusha well fields, Northern Tanzania

Impact of geology and geomorphology on fluoride contaminated groundwater in hard rock terrain of India using geoinformatics approach

Effects of coal mining on the water resources in the communities hosting the Iva Valley and Okpara Coal Mines in Enugu State, Southeast Nigeria

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