Author/Authors :
qabaqous, o. moulay ismail university - faculty of sciences - laboratory of chemistry-biology applied to the environment, Meknes, Morocco , bennani, m. naciri moulay ismail university - faculty of sciences - laboratory of chemistry-biology applied to the environment, Meknes, Morocco , tijani, n. moulay ismail university - faculty of sciences - laboratory of applied mineral chemistry, Meknes, Morocco , ziyat, h. moulay ismail university - faculty of sciences - laboratory of chemistry-biology applied to the environment, Meknes, Morocco , arhzaf, s. moulay ismail university - faculty of sciences - laboratory of chemistry-biology applied to the environment, Meknes, Morocco
Abstract :
In the present work, the characteristics of low cost Ghassoul Hydrotalcites Membrane (GHTM) for rejection of Cr (VI) was examined. We have prepared the clay ghassoul which is used as a support for membrane (GHTM). The mesoporous support was prepared from a ghassoul clay powders mixed with some organic additives. After sintering the support at 900°C, it showed a porosity of 38%. The GHTM is obtained by forming of the magnesium aluminium hydrotalcite layer HT-MgAlCO₃ with a molar ratio equal to 3 (Mg²⁺/Al³⁺=3) on the surface of the support. The properties of the ghassoul clay supports, HT-MgAlCO₃ powders and GHTM were characterized by XRD, SEM, BET and water flux permeation. The ability of GHTM to remove the ion chromium from synthesized solution with a concentration of 10⁻³ mol/L was investigated. The microfiltration tests by using the GHTM showed that the rejection reached 98% after 3 hours of filtration at 1bar and room temperature.
Keywords :
Adsorbtion , Hydrotalcites , Membrane , Microfiltration , Chromium
