Work

Hydrochemical Characteristics of Groundwater in the Mutoshi Deposit Environment, Kolwezi (Lualaba, DR Congo)

Year: 2025

Type: article

Abstract: This study examines the physico-chemical characteristics of groundwater in the Mutoshi mining environment in Kolwezi, Democratic Republic of Congo. The adopted methodology involved collecting samples from geological formations and groundwater in the study area. Rocks were analyzed to determine concentrations of major and trace elements, while detailed physico-chemical parameter analyses were conducted on groundwater samples. The results highlight high concentrations of Cu, Co, Mn, Fe, Mg, and Al in the rocks. Groundwater also exhibits concentrations of Cu, Mn, Fe, and Al exceeding the WHO's drinking water standards, raising concerns about the quality of water for human consumption. Hydrochemical classification of the waters, performed using the Piper diagram, revealed two distinct hydrofacies. Calcium-magnesium bicarbonate waters dominate in most samples, while sodium-potassium bicarbonate waters are also present. Processes influencing groundwater mineralization include dissolution of carbonate, clay, and evaporite minerals. These findings underscore the importance of understanding these processes to adequately assess and manage groundwater quality in the Mutoshi region.

Source: Advances in Environmental and Engineering Research

DOI: 10.21926/aeer.2502019

Authors: Matthieu Matthieu Tshanga, Nkulu Ilunga, Chiyaz Dibay, Faidance Mashauri, Pierre Mashala

Institutions: University of Lubumbashi, University of Kolwezi, Université de l'Uélé

Language: English

Topic: Water Quality and Pollution Assessment

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDG: Clean water and sanitation

Open Access status: hybrid

OpenAlex ID: W4409482249