主题词：Wastewater Treatment and Nitrogen Removal; Anaerobic Digestion and Biogas Production; Microbial Fuel Cells and Bioremediation; Membrane Separation Technologies; Microbial Community Ecology and Physiology; Microbial bioremediation and biosurfactants; Algal biology and biofuel production; Biofuel production and bioconversion; Pharmaceutical and Antibiotic Environmental Impacts; Water Treatment and Disinfection; Heavy metals in environment; Microbial Metabolic Engineering and Bioproduction; Microplastics and Plastic Pollution; Constructed Wetlands for Wastewater Treatment; Odor and Emission Control Technologies; Environmental remediation with nanomaterials; Mine drainage and remediation techniques; biodegradable polymer synthesis and properties; Metal Extraction and Bioleaching; Enzyme-mediated dye degradation; Water-Energy-Food Nexus Studies; Recycling and Waste Management Techniques; Toxic Organic Pollutants Impact; Advanced oxidation water treatment; Biodiesel Production and Applications