Peat water treatment using oxidation and physical filtration system and its performance in reducing iron (Fe), turbidity, and colorNur Novilina Arifianingsih, Yuniati Zevi, Qomarudin Helmy, Suprihanto Notodarmojo, Hirofumi Fujita, Yoshinobu Shimayama and Masao KiriharaE3S Web Conf., 148 (2020) 07011DOI: https://doi.org/10.1051/e3sconf/202014807011