Optimisation of Phenol Removal from Palm Oil Mill Effluent (POME) Using Natural BentoniteMuhammad Said, Tarmizi Taher, Addy Rachmat, Poedji Loekitowati Hariani and Aldes LesbaniE3S Web Conf., 68 (2018) 03014DOI: https://doi.org/10.1051/e3sconf/20186803014