Membrane and Water Treatment

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Cellulose acetate membrane preparation by phase inversion to estimate optimized parameters and its performance study

  • Katariya, Heena N (Department of Chemical Engineering, S. S Agrawal Institute of Engineering & Technology) ;
  • Patel, Tejal M (Department of Chemical Engineering, G H Patel College of Engineering & Technology)
  • Received : 2021.11.10
  • Accepted : 2022.03.12
  • Published : 2022.05.25
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Abstract

Development in advanced separation processes leads to the significant advancement in polymeric membrane preparation methodology. Therefore, present research investigated the preparation and characterization of cellulose acetate membrane by phase inversion separation method to determine optimized operating parameters. Prepared CA membrane's performance was been analyzed in terms of % rejection and flux. Investigation was conducted to study effect of different parameters such as polymer concentration, evaporation rate, thickness of film, coagulation bath properties, temperature of polymer solution and of the coagulation bath etc. CA membrane was fabricated by taking polymer concentration 10wt% and 11wt% with zero second evaporation time and varying film thickness over non-woven polyester fabric. Effect of coagulation bath temperature (CBT) and casting solution temperature were also been studied. The experimental results from SEM showed that the surface morphology had been changed with polymer r concentration, coagulation bath and casting solution temperature, etc. Lower polymer concentration leads to lower precipitation time giving porous membrane. The prepared membrane was tested for advanced waste water treatment of relevant effluent stream in pilot plant to study flux and rejection behavior of the membrane.

Keywords

Acknowledgement

The authors are thankful to Department of Chemical Engineering, S.S. Agrawal Institute of Engineering & Technology, management of G H Patel College of Engineering & Technology, Vallabh Vidyanagar, Gujarat (India) for their support towards setting of membrane laboratory and for permission to publish research work.

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