Process intensification of dilute methane abatement via a novel bidirectional tidal biofilter: Performance and mass-transfer mechanism - Heng Xu; Siyuan Shang; Quan Yuan; Zhiqiang Zuo; Jianbin Wang; Min Zheng; Zhenkang Wu; Xi Cheng; Huijiao Wang; Qi Qiu; Xinyu Zhang; Dawn E. Holmes (Chemical Engineering Journal, 2026)