Removal of Chemical Oxygen Demand in Brackish Water by Rhizophora mucronata using Reed Bed System Batch ReactorHarmin Sulistiyaning Titah, Ipung Fitri Purwanti, Herman Pratikno, Rachmi Layina Chimayati and HandayanuE3S Web Conf., 125 (2019) 03006DOI: https://doi.org/10.1051/e3sconf/201912503006