Kaolinite changed microbial community during anaerobic digestion (AD).

kaolinite-driven microbial community restructuring, enriching syntrophic bacteria (Anaerolinea, Hydrogenispora) and the methanogen (Methanosarcina). Kaolinite improved community resilience under TC stress by promoting mutualistic interactions and upregulating genes for methanogenesis and enhanced interspecies electron transfer.