Experimental design and modeling of removal of organic matter and nutrients in the OMW by calcium bentoniteHanane Ait Hmeid, Mustapha Akodad, Mourad Baghour, Abdelmajid Moumen, Ali Skalli and Ghizlane AziziE3S Web Conf., 234 (2021) 00092DOI: https://doi.org/10.1051/e3sconf/202123400092