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eISSN: 2581-9615 || CODEN: WJARAI || Impact Factor 8.2 ||  CrossRef DOI

Research and review articles are invited for publication in March 2026 (Volume 29, Issue 3) Submit manuscript

Physico-chemical quality of tap water in an urban environment: The case of the Massengo district, arrondissement n°9 Djiri, Brazzaville

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  • Physico-chemical quality of tap water in an urban environment: The case of the Massengo district, arrondissement n°9 Djiri, Brazzaville

Grace Mazel Ifo 1, 2, *, Zita Flora Diamouangana Mpissi 1, 3, Merline Lady Kouhounina Banzouzi 1, 4 Polycarpe Ossebi 1 and Laurent Matini 1

1 Mineral and Applied Chemistry Laboratory, Faculty of Science and Technology, Marien N'GOUABI University, Brazzaville, Republic of Congo
2 Department of Chemistry, Faculty of Science and Technology, Marien N'GOUABI University, Brazzaville, Republic of Congo
3 Exact Sciences Department, Ecole Normale Supérieure, Université Marien N'GOUABI, Brazzaville, Republic of Congo
4 Faculty of Applied Sciences, Université DENIS SASSOU N'GUESSO, Brazzaville, Republic of Congo.
 
Research Article
World Journal of Advanced Research and Reviews, 2023, 19(02), 1192-1203
Article DOI: 10.30574/wjarr.2023.19.2.1662
DOI url: https://doi.org/10.30574/wjarr.2023.19.2.1662
 
Received on 10 April 2023; revised on 19 August 2023; accepted on 22 August 2023
 
The drinking water supply in the Massengo Soprogi district in Brazzaville's Djiri 9 arrondissement is provided by the Djiri river, whose mineralization dictates that of the water in the distribution network. Tap water in this district was analyzed for various parameters in order to understand the acquisition of mineralization. The physico-chemical analysis of these water samples showed that the water has very little mineralization, and is not very hard due to the geological nature of the Djiri riverbed (sandy soil). The pH values in the wet and dry seasons give the water a weakly acidic nature and, taking into account the concentration of bicarbonate ions, a low level of complete alkalinity. The geochemical processes responsible for this mineralization are mainly: water-rock interaction and ion exchange, and silicate dissolution. The geochemical methods used were the Gibbs diagram and the calculation of a few characteristic ionic ratios. Tap water has a strong aggressive and corrosive tendency, as revealed by Langelier's saturation index and Ryznar's stability index.
 
Djiri river; Gibbs diagram; Water aggressiveness; Mineralization; Corrosion.
 
https://wjarr.com/sites/default/files/fulltext_pdf/WJARR-2023-1662.pdf

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Grace Mazel Ifo, Zita Flora Diamouangana Mpissi, Merline Lady Kouhounina Banzouzi, Polycarpe Ossebi and Laurent Matini. Physico-chemical quality of tap water in an urban environment: The case of the Massengo district, arrondissement n°9 Djiri, Brazzaville. World Journal of Advanced Research and Reviews, 2023, 19(2), 1192-1203. Article DOI: https://doi.org/10.30574/wjarr.2023.19.2.1662

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