| Extrusion of Silicon Carbide Based Tubular Membrane
Incorporated With Coal Fly Ash and Performance Evaluation
in Water Treatment |
Nilanjan Santra, Dulal Das and Nijhuma Kayal*
Pages: 13-21
DOI : 10.1080/0371750X.2024.2274546 |
| Abstract |
| Development of an efficient membrane from waste resources has been receiving
growing interest. The utilization of industrial waste coal fly ash (CFA) for the preparation
of SiC based tubular membrane has reduced the raw material cost and sintering
temperature, and hence beneficial in both economic and environmental points. In the
present work, tubular membrane was prepared by extrusion of ceramic paste
formulated using SiC powder, CFA, suitable dispersant, plasticizer and additives.
The extruded green body was dried and then sintered at 850oC. The membrane was
characterized by measuring porosity, morphology by scanning electron microscopy,
linear shrinkage, mechanical strength. The membrane performance was evaluated
using synthetically prepared oil-water emulsion, turbid water, kitchen wastewater and
industrial wastewater. The membrane was found to remove 93-95% of oil depending
on the oil concentration in the feed water. The oil rejection potential of the membrane
was compared with other membranes reported in the literature and the results indicated
that the membrane prepared in this study had a strong potential applications in
wastewater treatment. |
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