主题词：Recycling and Waste Management Techniques; Municipal Solid Waste Management; Recycling and utilization of industrial and municipal waste in materials production; Extraction and Separation Processes; Landfill Environmental Impact Studies; Thermochemical Biomass Conversion Processes; Anaerobic Digestion and Biogas Production; Recycled Aggregate Concrete Performance; Microplastics and Plastic Pollution; Composting and Vermicomposting Techniques; Concrete and Cement Materials Research; Coal and Its By-products; Healthcare and Environmental Waste Management; Food Waste Reduction and Sustainability; Diverse Scientific and Economic Studies; Wastewater Treatment and Nitrogen Removal; Phosphorus and nutrient management; Biofuel production and bioconversion; Human auditory perception and evaluation; Groundwater flow and contamination studies; Educational Robotics and Engineering; Sustainable Supply Chain Management; Advancements in Battery Materials; Metal Extraction and Bioleaching; Odor and Emission Control Technologies