Reducing Groundwater Pollution through Increased Humus Content and Soil Sorptive Capacity Using Angren Coal Dust

Abstract

This study explores an innovative approach to mitigating groundwater pollution caused by nitrate and nitrite leaching from agricultural soils. By applying coal dust—a by-product of the Angren coal industry—onto cotton and wheat fields, we observed enhanced sorption of nitrogen compounds and improved soil quality. Results demonstrate a significant reduction in nitrate content in groundwater, as well as increased humus content and soil water retention. This method provides a sustainable solution to both environmental pollution and soil degradation in arid agricultural regions.