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Multimetallic Biochar as an Ecosystem Engineer: Orchestrating Synergistic IHT-DIET Pathways via Spatial Niche Partitioning for Enhanced Anaerobic Digestion
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DOI：10.1016/j.jbiotec.2026.04.011.png)
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Abstract
En 中文
• Multi-metal modified biochar integrates electron transfer, enzyme immobilization, and microbial niche regulation in AD systems. • The optimized BC-Fe-Ni biochar significantly boosts methane yield to 224.7 NmL/g.VS and shortens lag phase to 3.7 days. • The biochar drives DIET with Methanosarcina as the key functional node, whereas the sludge phase relies on IHT to maintain system stability. • Fisher’s test and KEGG confirm microbial niche partitioning and reveal the molecular mechanism underlying the DIET-IHT synergistic effect.
Keywords:
Biochar
Anaerobic digestion
DIET
IHT
Microbial niche partitioning
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