Exploring patterns and mechanisms of indigenous microbial community succession driven by polycyclic aromatics in heterotrophic nitrification and aerobic denitrification systems - Weidong Xiao; Yaoguo Wu; Lang Ran; Ran Sun; Sihai Hu; Zherui Zhang; Usman Ghani; Azhar Masaud; Maorui Zhang (Bioresource Technology, 2026)