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Open AccessArticle

Analysis and Control of the Physicochemical Quality of Groundwater in the Chari Baguirmi Region in Chad

1
State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, China
2
School of Resource and Environmental Sciences, Wuhan University, Wuhan 430074, China
*
Author to whom correspondence should be addressed.
Water 2020, 12(10), 2826; https://doi.org/10.3390/w12102826
Received: 23 August 2020 / Revised: 15 September 2020 / Accepted: 16 September 2020 / Published: 11 October 2020
(This article belongs to the Special Issue Assessing Surface and Ground- Water Vulnerability and Pollution Risk)
Water resources are threatened nowadays by pollution that comes from domestic, industrial and agricultural discharges without prior treatment. This pollution causes the degradation of water quality. Surface pollutants can seep through the soil into water tables. The objective of our work is to assess and control the physicochemical quality of the Chari Baguirmi groundwater, to protect human health. The quality of 83 boreholes was assessed, while performing analysis for 12 physicochemical parameters at the National Water Laboratory and at the Center for Quality Control of Foodstuffs in Chad. These parameters are pH, EC, Ca2+, Mg2+, Na+, K+, Cl, SO42−, NH4+ and NO3, Fe2+ and HCO3. The results obtained were also compared with WHO standards. The geochemical statistical approach has made it possible to characterize hydro geochemical properties and to understand the major processes of mineralization of groundwater resources in the Chari Baguirmi region in Chad. Some of its waters are acidic and weakly mineralized, rich in Fe2+ and NH4+. The origin of the mineralization is due to the alteration of the host rocks and to the hydrolysis of silicate and ferromagnesian minerals, as well as anthropogenic pollution. The ammonium concentrations in N’Djamena boreholes are higher than WHO standards, indicating the presence of pollution which may come from organic waste. These results constitute a preliminary step in understanding hydro geochemical functioning and a basis for monitoring the physicochemical quality of water in the study area. View Full-Text
Keywords: analysis; control; physicochemical quality; groundwater; Chari Baguirmi region; Chad analysis; control; physicochemical quality; groundwater; Chari Baguirmi region; Chad
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MDPI and ACS Style

Beyaitan Bantin, A.; Wang, H.; Jun, X. Analysis and Control of the Physicochemical Quality of Groundwater in the Chari Baguirmi Region in Chad. Water 2020, 12, 2826.

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