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Membrane Water Treatment
  Volume 9, Number 6, November 2018 , pages 435-445
DOI: https://doi.org/10.12989/mwt.2018.9.6.435
 


Sensitivity analysis and Taguchi application in vacuum membrane distillation
Sushant Upadhyaya, Kailash Singh, Satyendra Prasad Chaurasia, Rakesh Baghel, Jitendra Kumar Singh and Rajeev Kumar Dohare

 
Abstract
    In this work, desalination experiments were performed on vacuum membrane distillation (VMD). Process parameters such as feed flow rate, vacuum degree on permeate side, feed bulk temperature and feed salt concentration were optimized using sensitivity analysis and Taguchi method. The optimum values of process parameters were found to be 2 lpm of feed flow rate, 60 degree Celsius of feed bulk temperature, 5.5 kPa of permeate-side pressure and 5000 ppm of salt concentration. The permeate flux at these conditions was obtained as 26.6 kg/m2⋅hr. The rejection of salt in permeate was found to be 99.7%. The percent contribution of various process parameters using ANOVA results indicated that the most important parameter is feed bulk temperature with its contribution of 95%. The ANOVA results indicate that the percent contribution of permeate pressure gets increased to 5.384% in the range of 2 to 7 kPa as compared to 0.045% in the range of 5.5 to 7 kPa.
 
Key Words
    vacuum membrane distillation (VMD); sensitivity analysis; desalination; Taguchi method; ANOVA
 
Address
Sushant Upadhyaya, Kailash Singh, Satyendra Prasad Chaurasia, Rakesh Baghel and Rajeev Kumar Dohare: Department of Chemical Engineering, Malaviya National Institute of Technology, Jaipur-302017, India
Jitendra Kumar Singh: Department of Chemical Engineering, JK Lakshmipat University, Jaipur-302026, India
 

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