Ultrafiltration of Aqueous PVA Using Spinning Basket Membrane Module
- 51 Downloads
The performance of spinning basket membrane (SBM) module was tested for the separation of polyvinyl alcohol (PVA) from wastewater. The SBM performance was examined using 50 kDa polyethersulfone ultrafiltration membrane under different parametric conditions. Also, the effects of rotational speed and transmembrane pressure on permeate flux and PVA rejection were investigated. The rotational speed played a significant role in decreasing membrane fouling by reducing the particle deposition on the membrane surface due to enhanced turbulence and shear force. Also, the in-built hydrodynamic cleaning facility of the SBM module allowed easy cleaning of the membrane. The steady-state value of percentage rejection of PVA was above 90% when the steady-state permeate flux value was above 54% of its initial value. The results suggested that spinning basket membrane module was efficient as well as economical for the separation of PVA from aqueous solution.
KeywordsPolyvinyl alcohol (PVA) Spinning basket membrane module Ultrafiltration Wastewater treatment
Transmembrane pressure difference.
Concentration in g L−1.
Initial PVA concentration in mg L−1.
PVA concentration at permeate side in mg L−1.
Universal gas constant.
Resistance of gel layer.
Resistance of membrane.
Temperature in K.
Time in min.
Volume of the solution in L.
Biological oxygen demand
Chemical oxygen demand
Dielectric barrier discharge
Dynamic shear enhanced
Ethylene diamine tetra acetic acid
Spinning basket membrane
Vibratory shear enhanced process
Authors acknowledge the analytical facilities provided by Central Instruments Facility (CIF), IIT Guwahati.
- Buckley, C. A., Townsend, R. B., & Groves, G. R. (1982). The performance of an ultrafiltration pilot-plant for the closed loop recycling of textile desizing effluents. Water Science and Technology, 14(6–7), 705–713.Google Scholar
- Peng, S., Gao, Z., Sun, J., Yao, L., & Qiu, Y. (2009). Influence of argon/oxygen atmospheric dielectric barrier discharge treatment on desizing and scouring of poly (vinyl alcohol) on cotton fabrics. Applied Surface Science, 255(23), 9458–9462. https://doi.org/10.1016/j.apsusc.2009.07.058.CrossRefGoogle Scholar
- Sarkar, D., Sarkar, A., Roy, A., & Bhattacharjee, C. (2012). Performance characterization and design evaluation of spinning basket membrane (SBM) module using computational fluid dynamics (CFD). Separation and Purification Technology, 94, 23–33. https://doi.org/10.1016/j.seppur.2012.03.034.CrossRefGoogle Scholar
- Zhang, J., Wang, S., Guo, Y., Xu, D., Gong, Y., & Tang, X. (2013). Supercritical water oxidation of polyvinyl alcohol and desizing wastewater: Influence of NaOH on the organic decomposition. Journal of Environmental Sciences (China), 25(8), 1583–1591. https://doi.org/10.1016/S1001-0742(9)60193-4.CrossRefGoogle Scholar