Behavior and mechanism of perfluorooctane sulfonate (PFOS) removal from wastewater samples using bamboo powder biochar - Yufei Liu; Yihuan Liu; Anping Zhang; Chenghu Yang; Yuying Wang; Hanghai Zhou; Shengmao Yang; Jiangwu Tang; Jianqiang Sun; Yuxue Liu (Journal of Water Process Engineering, 2025)