主题词：Landfill Environmental Impact Studies; Groundwater flow and contamination studies; Adsorption and biosorption for pollutant removal; Concrete and Cement Materials Research; Electrokinetic Soil Remediation Techniques; Soil and Unsaturated Flow; Advanced oxidation water treatment; Recycling and utilization of industrial and municipal waste in materials production; Heavy metals in environment; Geotechnical Engineering and Soil Stabilization; Environmental remediation with nanomaterials; Municipal Solid Waste Management; Microbial Fuel Cells and Bioremediation; Air Quality and Health Impacts; Recycling and Waste Management Techniques; Recycled Aggregate Concrete Performance; Grouting, Rheology, and Soil Mechanics; Radioactivity and Radon Measurements; Pharmaceutical and Antibiotic Environmental Impacts; Wastewater Treatment and Nitrogen Removal; Constructed Wetlands for Wastewater Treatment; Water Quality and Pollution Assessment; Nanomaterials for catalytic reactions; Advanced Photocatalysis Techniques; Arsenic contamination and mitigation