Simultaneous effect of cassava peels content and temperature of low cost ceramics membranes

In order to evaluate the joint influence of cassava peel waste and temperature on the properties of a ceramic membrane, two kaolinitic clays named EB and KG from Ebebda and Koutaba respectively, were mixed with cassava peel (CP) collected in the Bangourain locality. The raw materials were characterized by X-ray fluorescence spectroscopy, differential thermal and gravimetric analyses, particle size analysis and specific surfaces area. The substrates were sintered at 900 and 1100 °C and characterized by XRD, SEM, firing shrinkage, mass loss, water absorption, porosity, bulk density and flexural strength. The addition of cassava peel between 4 and 14 % contributes to an increase in shrinkage, mass loss, water absorption and porosity at all firing temperatures. This increase reduces flexural strength and bulk density. At 900 °C, the membranes contain quartz, hematite and anatase as crystalline phases, while at 1100 °C, mullite, quartz, hematite and rutile are observed. Cassava peel has no influence on the formation of these crystalline phases, while temperature plays a key role in their formation and crystallinity. The addition of CP powder has a significant influence on membrane microstructure.