Fabrication of Tubular Membrane Supports from Low Price Raw Materials, Using Both Centrifugal Casting and/or Extrusion Methods

Comparative Study of Ceramic Membranes Developed on Different Algerian Natural Clays for Industrial-Effluent Filtration

“…The data in Figure 2 clearly illustrate the fact that the permeate flow diminishes with time in all examined tubular supports, and stabilizes after 40 min for each applied pressure. This flux-stability finding is consistent with previous research, which reveals that the permeation flux often stabilizes within 30 or 40 min [37,39,45].…”

“…Extrusion of the previously produced ceramic paste is used to construct tubular supports. It is based on the idea of compressing the paste in a cylinder which is put on another cylindrical molded component to produce single-channel tubular supports with well-defined diameters [38,39]. Following extrusion, the supports are air dried for 6 days before being heat treated in a furnace (Nabertherm GmbH, Lilienthal, Germany), using a two-stage thermal program.…”

“…Our membranes were manufactured by preparing a slip consisting of a mass percentage (W%) combination of 30 W% polyvinyl alcohol gel (12 W% PVA in water), 65 W% water, and 5 W% clay powder sieved through 40 µm [39].…”

A New and Economic Approach to Synthesize and Fabricate Bioactive Diopside Ceramics Using a Modified Domestic Microwave Oven. Part 1: Study of Sintering and Bioactivity

“…Therefore, to avoid all these drawbacks, selecting another material called diopside (CaMgSi 2 O 6 ) is of great importance. This alternative material may be significantly considered as a low‐price bioceramics because of the abundance of the dolomite (CaCO 3 ·MgCO 3 ), which is used in this work as a starting material, similarly to what has been reported in reference …”

“…This alternative material may be significantly considered as a low-price bioceramics because of the abundance of the dolomite (CaCO 3 ÁMgCO 3 ), which is used in this work as a starting material, similarly to what has been reported in reference. 9,10 Calcium silicate-based biomaterials including bioglass are nowadays a hot topic of research for bone tissue repair applications. 11 Diopside belongs to the group of silicate biomaterials, and they have the ability to release silicate ions at a given concentration, which helps osteoblasts to grow and differentiate.…”