Selecting model for treatment of oily wastewater by MF-PAC hybrid process using mullite-alumina ceramic membranes |
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Authors: | M. Abbasi A. Taheri |
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Affiliation: | 1.Department of Chemical Engineering, School of Cemical and Petroleum Engineering,Persian Gulf University,Bushehr,Iran;2.Department of Chemistry,Islamic Azad University,Lamerd,Iran |
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Abstract: | Hermia’s models for cross flow filtration were used to investigate the fouling mechanisms of mullite-alumina ceramic membranes in treatment of oily wastewaters in a hybrid microfiltration-powdered activated carbon process (MF-PAC). Results show that cake filtration model can be applied for prediction of permeation flux decline for MF and MF-PAC process up to 400 ppm PAC. The complete pore blocking model and the intermediate pore blocking model can predict permeation flux decline with time for MF-PAC with 800 and 1200 ppm PAC respectively. Average error for prediction of permeation flux with cake filtration model is 2.19% for MF process and 2.16, 2.06 and 1.31% for MF-PAC process with 100, 200 and 400 ppm PAC respectively. Also for MF-PAC process with 800 and 1200 ppm PAC, average error for prediction of permeation flux with complete pore blocking model and intermediate pore blocking model was 6.11 and 6% respectively. |
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