Scaling Behavior and Softening Groundwater Assessment: A Representative Case Study in Algeria

Abstract

This study investigates the scaling behavior of groundwater in the Touggouret region of South Algeria, which serves as the primary water supply source. The groundwater exhibits high salinity and temperature, posing challenges to its utilization. The research aims to understand the geochemical characteristics and scaling sources to facilitate effective water management strategies.Geochemical modeling using the PhreeqC model reveals positive saturation values for carbonate rocks (Dolomite, Calcite, and Aragonite) and negative saturation indices for evaporite rocks (Gypsum and Anhydrite). This suggests that scaling behavior primarily stems from carbonated rocks.The high salinity, temperature, and positive saturation values contribute to the accumulation of scale-forming substances. Mitigation strategies should focus on removing calcium and magnesium ions, the main scaling contributors, from the groundwater. Softening techniques involving lime and soda can be applied.Understanding the scaling behavior sources is crucial for developing appropriate treatment methods and water management practices. These practices should consider the geochemical characteristics of the aquifers, including temperature and salinity control. By addressing scaling issues, water quality and availability can be improved in the Touggouret region.This research provides insights into the scaling behavior of groundwater in Touggouret, addressing water quality challenges associated with high salinity and temperature. The findings inform decision-making processes for water treatment and management, facilitating the availability and quality of water resources while mitigating scaling issues.