Preparation and Mechanisms of Core-Shell Hierarchical Porous Composites for Targeted Enrichment and Protection of AnAOB

Key Points

• The study aims to develop a composite material that can enrich anaerobic ammonium-oxidising bacteria while protecting them from environmental stress.
• Developed a core-shell hierarchical porous molecular sieve composite.
• Used a Fe-modified biochar core for the composite structure.
• Analyzed the efficacy of the composite for enhancing AnAOB growth.
• The composite showed improved enrichment of AnAOB under various stress conditions.
• Protection mechanisms against inhibitory stress were observed.
• Demonstrated the potential for application in wastewater treatment and environmental bioremediation.