New Tubular Ceramic Membranes from Natural Moroccan Clay for Microfiltration Application A. Ait Taleb, N. El Baraka, N. Saffaj, A. Laknifli, R. Mamouni, A. Fatni, A. El Hammadi and N. El Qacimi E3S Web Conf., 37 (2018) 01011 Published online: 25 May 2018 DOI: 10.1051/e3sconf/20183701011