Calculation of currents and pollution of water bodies based on mathematical modeling of geofiltration

Abstract

This study presents an integrated approach to modeling groundwater flow and pollutant transport using geofiltration principles and numerical simulation techniques. The research is focused on predicting the movement and concentration of contaminants - specifically nitrate and cadmium - within heterogeneous aquifer systems. A coupled MODFLOW-MT3DMS model was developed to simulate flow dynamics and reactive solute transport, incorporating parameters such as hydraulic conductivity, porosity, dispersivity, and degradation rates. The model was validated with field data and supported by GIS-based spatial analysis.Monte Carlo simulations were used to assess parameter sensitivity and uncertainty, revealing strong dependencies between aquifer properties and pollution plume behavior. The results indicated that the contaminant concentrations exceeded WHO standards in vulnerable zones, particularly near agricultural and industrial discharge points. Scenario modeling of remediation strategies, including reactive barriers and pump-and-treat systems, demonstrated significant potential for plume containment and concentration reduction. This research underscores the importance of geofiltration modeling as a decision-support tool for groundwater protection and sustainable environmental management, particularly in arid and semi-arid regions facing growing water quality challenges.