Research Article
Impacts of Aluminium and Nitrogen Compounds (Nitrate and Ammonium) on the Physico-Chemical Quality of Groundwater in the District of Abidjan
Ibrahim Savadogo*,
Sadat Aw,
Yeï Marie Solange Oga
Issue:
Volume 12, Issue 6, December 2023
Pages:
150-159
Received:
19 September 2023
Accepted:
12 October 2023
Published:
11 November 2023
Abstract: The boreholes use to supply drinking water in the District of Abidjan are located in heavily urbanised areas. This high level of urbanisation is increasingly contributing to the deterioration of groundwater quality. The objective of this study is to assess the impact of aluminium and nitrogen compounds on the physico-chemical quality of groundwater in the District of Abidjan. To achieve this objective, the physico-chemical parameters of fifty (50) groundwater samples were determined over a four year period (2019-2022) during the dry and rainy seasons. A total of 400 groundwater samples were analysed. With the exception of aluminium, nitrate and ammonium, all the chemical elements analysed namely Ca2+, Mg2+, K+, O2; SO42-, SiO2, PO43-, NO2-, Cl-, Mn2+, Cu2+, Zn2+, Fe2+, Fe, H2S and F- were below the values recommended by world health organisation for water intended for human consumption. High levels of aluminium, nitrate and ammonium were observed in 49.5%, 10.75% and 18, 25% of the water samples analysed respectively. The study of spatial and temporal variation shows that groundwater pollution depends on the geographical location of the groundwater and not on the seasons. Principal Component Analysis (ACP) reveals the natural and anthropogenic mineralisation of groundwater.
Abstract: The boreholes use to supply drinking water in the District of Abidjan are located in heavily urbanised areas. This high level of urbanisation is increasingly contributing to the deterioration of groundwater quality. The objective of this study is to assess the impact of aluminium and nitrogen compounds on the physico-chemical quality of groundwater...
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Research Article
Seasonal Variation of the Physico-Chemical Parameters and Irrigation Suitability of the Waters of the Tsieme River in Brazzaville (Congo)
Tchoumou Martin,
Moussoki Nsona Promesse*,
Louzayadio Mvouezolo Raison Félicien,
Engambe Christ Bardoul
Issue:
Volume 12, Issue 6, December 2023
Pages:
160-170
Received:
13 October 2023
Accepted:
8 November 2023
Published:
17 November 2023
Abstract: Water is a basic need for all living beings, it contributes to sustainable development. The management of water resources is a major challenge in the world and for most developing countries. This work proposes to evaluate the physico-chemical quality and the suitability for irrigation of the Tsiémé River in Brazzaville (Congo) during two seasons (dry season 2021 and rainy season 2022). Eight (08) water samples were taken, four times (04) samples per season and then analyzed by physico-chemical methods. The results obtained during the 2021 dry season and the 2022 rainy season revealed temperatures exceeding the WHO standard (25°C), very soft and sometimes turbid waters (8.02-214.00 NTU) with pH values oscillating between 5.61 and 7.73, a low concentration of major and minor ions which confirms the low mineralization of this river. These low levels of major and minor ions show that these waters benefit from the geology of the environment crossed. The dissolved organic carbon and suspended matter contents exceed the WHO guideline values. The projection of water points on Piper's triangular diagram essentially highlights two chemical families: sodium and potassium bicarbonate waters and sodium and potassium chloride waters; the schoeller diagram confirms the facies observed in the Piper diagram. The concentration average of absordable sodium, determined from the SAR, varies from 2.88 to 5.33 meq/L in the dry season and from 0.2 to 2.78 meq/L in the rainy season. These waters belong to class S1 (SAR < 10). The water from the Tsiémé River contains a low amount of sodium and can be used for irrigation in almost any soil without fear of difficulties arising from the alkalinization point of view. Thus, the irrigation indices reveal that the Tsiémé River is of fairly good quality for irrigation.
Abstract: Water is a basic need for all living beings, it contributes to sustainable development. The management of water resources is a major challenge in the world and for most developing countries. This work proposes to evaluate the physico-chemical quality and the suitability for irrigation of the Tsiémé River in Brazzaville (Congo) during two seasons (d...
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