MnOx valence cycle-mediated non-radical electron transfer: Dual regulatory role of MnOx in the chlorination degradation of NOR in drinking water distribution systems - Zeting Chen; Chenlei Xie; Guilin He; Yonglei Wang; Haoran Ji; Tuqiao Zhang; Baozhen Liu; Zhenqi Du; Feilong Dong (Journal of Environmental Chemical Engineering, 2026)