Impact of extreme rainstorm on the stability of biological activated carbon in drinking water treatment: Differential microbial responses in new versus aged filters - Jia Niu; Haibing Wang; Yue Wang; Tian Lin; Rongxing Lan; Lihong Chen; Xianhua Liu; Kaiqin Xu; Xiaochen Chen; Xiaoyun Wang (Journal of Water Process Engineering, 2026)