New Tubular Ceramic Membranes from Natural Moroccan Clay for Microfiltration Application

E3S Web of Conferences

关键词: Wastewater treatment;    Ceramic membrane;    Tubular support;    Microfiltration;    Clay;   

DOI  :  10.1051/e3sconf/20183701011

来源: DOAJ

【 摘 要 】

This paper is devoted the preparation of low cost microfiltration membranes using Moroccan clay powder. The preparation of membrane was composed with two steps: First a macroporous tubular support with a pore diameter 10 μm and porosity 43%. Secondly a microfiltration layer was performed by the slip casting method. A deflocculated slip was obtained by mixing mineral powder of ZrO2, PVA (polyvinyl alcohol) and water, after drying at room temperature for 24 h, the microfiltration layer was heated to 800°C for consolidation. Scanning electron microscopy observation showed homogeneous layers without cracks with an average pore diameter of 0.19 μm for the active layer. Water permeability obtained is about 841 L/h.m2.bar. The membranes have been tested to cleaning of colored wastewater.

【 授权许可】

Unknown