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Mineralization of Natural Spring Water in the City of Daloa (West-Central Côte d’Ivoire)
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作者 Eblin Sampah Georges Konan Kouakou Séraphin +3 位作者 Ohou-Yao Marie-Jeanne Adélaïde Mangoua Oi Mangoua Jules Dibi Brou Kouassi Kouakou Lazare 《Journal of Geoscience and Environment Protection》 2020年第12期200-210,共11页
The water from natural springs in the city of Daloa is increasingly used by the population for its drinking water needs, even though its quality remains unknown. This study aims to determine the acquisition mechanism ... The water from natural springs in the city of Daloa is increasingly used by the population for its drinking water needs, even though its quality remains unknown. This study aims to determine the acquisition mechanism of the mineralization of these waters. Thus, physicochemical analyses were carried out on 10 spring water samples in February 2019. A summary statistical analysis of the results obtained shows that these waters are acidic (4.81 ≤ pH ≤ 5.39) and very weakly mineralised, with 50% of the conductivities below 100 μS<span style="white-space:nowrap;">&middot;</span>cm<sup>-1</sup>. The average iron (0.5 ± 1.02 mg/L) and manganese (0.61 ± 0.90 mg/L) contents show that these two parameters are increasing in the spring water. The Normalized Principal Component Analysis (NPCA) shows that mineralization is mainly controlled by surface inputs of elements (anthropogenic pollution), then the oxidation-reduction phenomenon and, finally, the water-rock contact (mineralization-residence time). Otherwise, the very low expression of water-rock contact (mineralization-residence time) in the acquisition of the mineralization reflects a short residence time of the water in the aquifer. 展开更多
关键词 NPCA MINERALIZATION natural spring Daloa Côte d’Ivoire
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