Environmental pollution caused by industrialization, urbanization, and emerging contaminants has become a major global challenge, driving the need for innovative and sustainable remediation strategies. Recent advances in environmental genomics have significantly improved our understanding of microbial communities, pollutant degradation pathways, and ecosystem functions, while bionanomaterials have demonstrated great potential for efficient contaminant removal, wastewater treatment, resource recovery, and environmental restoration. The integration of genomics, environmental biotechnology, and advanced bio-based nanomaterials is creating new opportunities for precision environmental monitoring, intelligent bioremediation, and sustainable water management. This Special Issue aims to bring together cutting-edge research on genomic technologies, microbial engineering, bionanomaterials, and innovative environmental treatment approaches that support pollution control, circular resource utilization, and sustainable environmental development.

This Special Issue welcomes original research articles, review papers, and perspectives on innovative technologies that combine environmental genomics, biotechnology, microbiology, and bionanomaterials for sustainable environmental management. Topics include, but are not limited to:

• Environmental genomics for water and environmental systems
• Metagenomics, transcriptomics, proteomics, and multi-omics applications
• Functional microbial ecology and microbial community engineering
• Biological wastewater treatment and biofilm technologies
• Bioremediation of contaminated water and soils
• Heavy metal removal and detoxification
• Emerging contaminants and micropollutant degradation
• Bionanomaterials for environmental remediation
• Nano-enabled adsorbents and catalytic materials
• Biochar and bio-based functional materials
• Water and wastewater treatment technologies
• Resource recovery and circular bioeconomy
• Environmental monitoring using molecular and genomic tools
• AI-assisted environmental biotechnology and omics data analysis
• Sustainable environmental engineering and pollution control