[ Diagnostic Qualitatif et Optimisation du système d’Alimentation en Eau Potable d’Amtiman, Province du Salamat au Tchad ]
Epolyste Adjeffar1 and Kaziri Adeline2
1 Department de Géographie, Ecole Normale Supérieure de N’Djamena, Chad
2 Department de SVT, Ecole Normale Supérieure de N’Djamena, Chad
Original language: French
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This study aims to assess the current state of the drinking water supply system in the city of Amtiman, evaluating both its performance indicators and the quality of the distributed water. Following this assessment, a technical proposal is presented, along with a cost estimate for optimization to ensure a continuous drinking water supply to the city’s residents. To this end: The Epanet software was used to model the network. The reservoir, performance indicators, and population estimate were determined using an analytical method. The results obtained show that it is necessary to (i) construct an additional 300m3 elevated reinforced concrete reservoir to serve the estimated 69,706 inhabitants in 2044, (ii) extend the water distribution network to 14,816 km, for a total of 20,347 km, and (iii) drill 6 new boreholes capable of pumping at least 40m3/h each, connected by a 140mm diameter HDPE supply pipeline. The total cost of the rehabilitation amounts to 975,798,050 FCFA.
Author Keywords: Amtiman, water, diagnosis, optimization, Epanet.
Epolyste Adjeffar1 and Kaziri Adeline2
1 Department de Géographie, Ecole Normale Supérieure de N’Djamena, Chad
2 Department de SVT, Ecole Normale Supérieure de N’Djamena, Chad
Original language: French
Copyright © 2025 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
This study aims to assess the current state of the drinking water supply system in the city of Amtiman, evaluating both its performance indicators and the quality of the distributed water. Following this assessment, a technical proposal is presented, along with a cost estimate for optimization to ensure a continuous drinking water supply to the city’s residents. To this end: The Epanet software was used to model the network. The reservoir, performance indicators, and population estimate were determined using an analytical method. The results obtained show that it is necessary to (i) construct an additional 300m3 elevated reinforced concrete reservoir to serve the estimated 69,706 inhabitants in 2044, (ii) extend the water distribution network to 14,816 km, for a total of 20,347 km, and (iii) drill 6 new boreholes capable of pumping at least 40m3/h each, connected by a 140mm diameter HDPE supply pipeline. The total cost of the rehabilitation amounts to 975,798,050 FCFA.
Author Keywords: Amtiman, water, diagnosis, optimization, Epanet.
Abstract: (french)
L’étude a pour but de faire un état de lieu du système d’alimentation en eau potable de la ville d’Amtiman aussi bien dans l’évaluation de ses indicateurs des performances, que la qualité d’eau distribuée. A l’issue de ce diagnostic, une proposition technique est faite suivi d’une estimation du coût de l’optimisation afin de garantir un service continu dans la distribution de l’eau potable aux populations de ladite ville. Pour cela: Le logiciel Epanet a servi à la modélisation du réseau. Le réservoir, les indicateurs de performances et l’estimation de la population ont été déterminés par la méthode analytique. les résultats obtenus montrent qu’il faut (i) un réservoir surélevé de 300m3en béton armé supplémentaires pour desservir les 69 706 habitants estimés en 2044 (ii) étendre le réseau de distribution de l’eau à 14.816 kml soit un total de 20,347kml et (iii) réaliser 6 forages nouveaux pouvant pomper au moins un débit de 40m3/h chacun, reliés par une conduite d’adduction en PEHD de diamètre 140mm. Le coût total de la réhabilitation s’élève à 975 798 050 FCFA.
Author Keywords: Amtiman, eau, diagnostic, optimisation, Epanet.
