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In membrane applications for wastewater treatment, polymeric membranes are dominant due to their processbility and low cost. To enlarge the membrane application in industrial effluent treatment, membrane materials with high mechanical and chemical tolerance should be needed. Although ceramics such as alumina would be good options for harsh environmental conditions, high cost and complex production methods hinder the application of ceramic membranes. Here, we demonstrate the preparation of cost-effective, robust alumina hollow fiber membranes (HFMs). Alumina HFMs prepared with phase inversion method followed by sintering showed narrow pore size distribution. Also, characteristics of the membrane can be easily tuned by controlling spinning and post treatment conditions.
