Assessment of Hydraulic Parameters and Protection Zones of Catchment Aquifers for Water Supply Network in NdéDivision, West-Cameroon (Central Africa)  

作　　者：Roger Feumba Kemgang Dongmo Tchouta Jean Ghislain Tabué Youmbi Valentin Yvan Emmanuel Mvondo Depesquidoux I. Tchaptchet Tchato Benjamin Ngounou Ngatcha Roger Feumba;Kemgang Dongmo Tchouta;Jean Ghislain Tabué Youmbi;Valentin Yvan Emmanuel Mvondo;Depesquidoux I. Tchaptchet Tchato;Benjamin Ngounou Ngatcha(University of Yaoundé I, Yaoundé, Cameroon)

机构地区：[1]University of Yaoundé I, Yaoundé, Cameroon

出　　处：《Journal of Water Resource and Protection》2021年第7期478-497,共20页水资源与保护（英文）

摘　　要：Ndé Division in West-Cameroon is facing with water supply although many attempts of restoring existing SCANWATER facilities by Bangangté Municipality. In order to address the issue, we assess the exploitable pumping flow rate of catchment aquifers and its hydraulic properties by using Jacob and Theis method, and define protection zones with Hoffman and Lillich method. It emerges that the hydraulic conductivity of aquifer is in the order of 10^-4 m/sec, transmissivity varies from 10^-4 to 10^-6 m²/sec. Aquifer pumping flow rate (Q) varies between 1.5 and 10.5 m³/h. In volcanic rocks, aquifer is more productive (4.5 ≤ Q ≤ 10.5 m³/h). Transfer time of pollutants to aquifer varies from 3 to 56 days depending on rock-types and groundwater slope (0.03 - 0.13 m/m). Furthermore, 113,624 m and 1123 m are radius to be implemented for a better protection of groundwater against any form of pollutant.Ndé Division in West-Cameroon is facing with water supply although many attempts of restoring existing SCANWATER facilities by Bangangté Municipality. In order to address the issue, we assess the exploitable pumping flow rate of catchment aquifers and its hydraulic properties by using Jacob and Theis method, and define protection zones with Hoffman and Lillich method. It emerges that the hydraulic conductivity of aquifer is in the order of 10^-4 m/sec, transmissivity varies from 10^-4 to 10^-6 m²/sec. Aquifer pumping flow rate (Q) varies between 1.5 and 10.5 m³/h. In volcanic rocks, aquifer is more productive (4.5 ≤ Q ≤ 10.5 m³/h). Transfer time of pollutants to aquifer varies from 3 to 56 days depending on rock-types and groundwater slope (0.03 - 0.13 m/m). Furthermore, 113,624 m and 1123 m are radius to be implemented for a better protection of groundwater against any form of pollutant.

关 键 词：Pumping Tests Aquifer Properties Groundwater Protection Ndé Division West-Cameroon (Central Africa) 

分 类 号：P64[天文地球—地质矿产勘探]