Sodium pyrophosphate-mediated deconstruction of divalent cation bridging for impairing sewer sludge adhesion: in-situ self-cleaning by gravity sewage flow - Heliang Pang; Xiyi Chen; Qiao Wei; Xingwang Li; Huining Xu; Chunwei Wang; Yong Liu; Jun Wang; Bo Zhang; Jinsuo Lu (ENGINEERING Environment, 2026)