Assessment of groundwater quality and the main controls on its hydrochemistry in some Voltaian and basement aquifers, northern Ghana

Loh, Yvonne Sena Akosua; Akurugu, Bismark Awinbire; Manu, Evans; Aliou, Abdul-Samed

doi:10.1016/j.gsd.2019.100296

Cited by 73 publications

(44 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in The diagrams developed by the USSL (1954) and Wilcox (1948) have been widely applied to evaluate the groundwater quality for irrigation (Loh et al 2019). As shown in Fig.…”

Section: Groundwater Quality For Irrigation Purposementioning

confidence: 99%

Hydrochemical Characteristics and Water Quality of Groundwater in the Thick Loess Deposits

2021

Preprint

View full text Add to dashboard Cite

Water quality and quantity should be paid more attentions for regions with arid climate and thick vadose zones since the limited groundwater cannot be replenished rapidly once polluted. This study focused on the Loess Plateau of China to investigate the geochemical mechanism affecting groundwater chemistry and to calculate contribution rates of multiple sources to groundwater solutes. We employed multiple methods (diagrams, bivariate analyses, hierarchical cluster analysis (HCA), sodium adsorption ratio (SAR), water quality index (WQI), correlation analysis, forward simulation) for the above purposes. We collected 64 groundwater samples in the thick loess deposits in June 2018 (flood season) and April 2019 (dry season). The average concentrations of cation were in the order of Ca2+ > Na+ > Mg2+ > K+ in the flood season, and Na+ > Ca2+ > Mg2+ > K+ in the dry season. The order of anions contents in the flood season and the dry season was HCO3− > SO42− > Cl− > NO3−. The major hydrochemical facies were Ca-HCO3 and Ca·Mg-HCO3 in the flood season, and Na·Ca-HCO3·SO4 and Na-HCO3 in the dry season, respectively. Most of the groundwater (95% in the flood season and 96% in the dry season) was suitable for drinking, and overall water quality (except samples F28 and D13) was acceptable for irrigation. Mineral dissolution and cation exchange were important natural processes affecting groundwater chemistry. A forward model showed that the contribution of atmospheric input, anthropogenic input, evaporite dissolution, silicate weathering and carbonate weathering to solutes in groundwater was 2.3 ± 1.5%, 5.0 ± 7.1%, 19.3 ± 21.4%, 42.8 ± 27.3% and 30.6 ± 27.1% in the flood season, and 9.1 ± 6.4%, 3.4 ± 5.2%, 20.3 ± 15.9, 56.6 ± 23.2%, and 10.7 ± 15.4% in the dry season, respectively. Although the overall contribution of anthropogenic inputs was minor, it was the dominant source of solutes for some groundwater samples. This study provides fundamental information for water management in arid areas.

show abstract

“…As shown in The diagrams developed by the USSL (1954) and Wilcox (1948) have been widely applied to evaluate the groundwater quality for irrigation (Loh et al 2019). As shown in Fig.…”

Section: Groundwater Quality For Irrigation Purposementioning

confidence: 99%

Hydrochemical Characteristics and Water Quality of Groundwater in the Thick Loess Deposits

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The presence of Na + may come from the dissolution of silicate mineral albite in the underlying granitic rocks of the area.This cluster also represents cation exchange process, in which Na + displaces Ca 2+ in the water. Cluster 3 consists of Mn 2+ , K + , Cland NO3and generally, these parameters occur in elevated concentrations in groundwater due to anthropogenic activities such as the seepage of domestic waste and the use of chemical fertilisers (Loh et al 2020).…”

Section: Spatial Groundwater Types Using Multivariate Statisticsmentioning

confidence: 99%

Hydrochemical peculiarities and groundwater quality assessment of the Birimian and Tarkwaian aquifer systems in Bosome Freho District and Bekwai Municipality of the Ashanti Region, Ghana

Okofo

Anderson²,

Bedu-Addo

et al. 2021

Preprint

View full text Add to dashboard Cite

The Birimian and Tarkwaian aquifer systems are the main sources of water supply for the Bosome Freho District and Bekwai Municipality inhabitants in the Ashanti region of Ghana. A hydrogeochemical assessment was carried out to ascertain the natural baseline chemistry of the groundwaters and the factors influencing groundwater chemistry in these two areas. A multivariate statistical tool consisting of principal component analysis (PCA) and hierarchical cluster analysis (HCA) together with hydrochemical graphical plots was applied on 64 groundwater samples. The Q–mode HCA results were used to explain the groundwater quality flow paths where three spatial groundwater zones and water types were delineated. The first type consists of Ca–Mg–HCO3 freshwater (recharge zone), which transitions into Ca–Na–HCO3 or Na–Ca–HCO3 mixed waters (intermediate zone) and finally evolve to the third type of Na–Ca–Mg–HCO3–Cl water (discharge zone). The study also reveals that the natural process influencing water chemistry is groundwater–rock interaction from carbonate and silicate weathering/dissolution, aided by carbonic acid from precipitation and releases concentration of Na+, Ca2+, Mg2+ and HCO3- into the groundwaters significantly. The chloro-alkaline indices also reveal cation exchange as the principal natural factors that control groundwater chemistry in the area. Anthropogenic activities have little influence on groundwater chemistry. The quality of groundwater in the Bosome Freho District and Bekwai Municipality are suitable for irrigational use and drinking water consumption. The results obtained so far will contribute to research paucity in the study area and serve as a guide for decision-makers for improved water resources management.

show abstract

“…The results of R-mode factor analysis are presented in Table 3. Only variables with extracted communalities equal to or higher than 0.5 were considered for the factor analysis [33]. The variables such as pH and K + with communalities below the set lower limit were discarded.…”

Section: Factors Controlling Groundwater Geochemistrymentioning

confidence: 99%

Role of Natural and Anthropogenic Influence on the Salinization of Groundwater from Basement Aquifers in the Middle Part of Mono River Basin, Togo

Akpataku¹,

Gnazou²,

Djanéyé-Boundjou³

et al. 2020

JEP

View full text Add to dashboard Cite

Assessment of groundwater quality and the main controls on its hydrochemistry in some Voltaian and basement aquifers, northern Ghana

Cited by 73 publications

References 24 publications

Hydrochemical Characteristics and Water Quality of Groundwater in the Thick Loess Deposits

Hydrochemical Characteristics and Water Quality of Groundwater in the Thick Loess Deposits

Hydrochemical peculiarities and groundwater quality assessment of the Birimian and Tarkwaian aquifer systems in Bosome Freho District and Bekwai Municipality of the Ashanti Region, Ghana

Role of Natural and Anthropogenic Influence on the Salinization of Groundwater from Basement Aquifers in the Middle Part of Mono River Basin, Togo

Contact Info

Product

Resources

About