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The chitosan : MMA wt . proportion and the wt. % of NP in PVC were optimised by a 5-level factorial aim . The membranes prepared from i ) PVC , PVC blended with 6 wt. % each of ii ) chitosan , iii ) PMMA and iv ) NP showed a pervaporative flux ( kg/m ( 2 ) h ) /acetone selectivity of 0/24 , 0/21 , 0/23 and 0/27 , respectively for 5 wt. % acetone in feed . The sorption and pervaporation data depicted snug appointment to ENSIC and six-parameter solution-diffusion poser , respectively.A Comparative Study on the Flocculation of Silica and Chi

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