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Polyvinyl alcohol (PVA) is an important sizing agent in textile industries. As textile effluent containing PVA is considered to be hazardous water pollutant, so several attempts has been taken to recover the same. Amongst all separation processes, Shear enhanced membrane separation have been adopted as one of the standard techniques to be used to recover PVA from desizing waste water generated by textile industries. The present work is an attempt to analyze the performance of an indigenously designed novel shear enhanced module, named as Intermeshed Spinning Basket Module (ISBM) with inbuilt hydrodynamic cleaning facility. The analysis has been undertaken with different basket rotational speed () and transmembrane pressure (TMP) in ultrafiltration of simulated desizing wastewater using polyvinylidene fluoride (PVDF) membranes of 100 kDa molecular weight cut-off (MWCO). Permeate flux as high as 1.4610-5 m3 m-2 s-1 was observed for a TMP of 4.41 atm and at rotational speed of 200 rpm. The regenerated flux after the first cleaning exhibits 28-58% enhancement compared to the corresponding steady state flux at the end of first normal run. The result shows the efficacy of the module for the recovery of PVA KeywordsIntermeshed spinning basket module, Permeate flux, Regression analysis, Shear enhanced module, cleaning run.

Design and Performance Analysis of Novel Shear Enhanced Module for The Recovery of PVA from Desizing Waste Water