Environmental Engineering Research

Korean Society of Environmental Engineers (대한환경공학회)
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The roles of polyethersulfone and polyethylene glycol additive on nanofiltration of dyes and membrane morphologies

  • Hassan, Abdul Rahman (East Coast Environmental Research Institute (ESERI), Universiti Sultan Zainal Abidin, Gong Badak Campus) ;
  • Rozali, Sabariah (East Coast Environmental Research Institute (ESERI), Universiti Sultan Zainal Abidin, Gong Badak Campus) ;
  • Safari, Nurul Hannan Mohd (East Coast Environmental Research Institute (ESERI), Universiti Sultan Zainal Abidin, Gong Badak Campus) ;
  • Besar, Badrul Haswan (East Coast Environmental Research Institute (ESERI), Universiti Sultan Zainal Abidin, Gong Badak Campus)
  • Received : 2018.01.10
  • Accepted : 2018.03.10
  • Published : 2018.09.30
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Abstract

In this study, the effects of polymer concentration and additive in the formation of asymmetric nanofiltration (NF) membrane were evaluated. The membrane fabrication was carried out via dry/wet phase inversion technique. A new formulation of dope solution with polymer concentration ranging between 17 wt% to 21 wt% and the present of additive was developed. The results show that the permeate flux gradually decreases as polymer concentration increased, until $2.5969L/m^2h$ and increased the rejection up to 98.7%. Addition of additive, polyethylene glycol 600 increased dyes rejection up to 99.8% and decreased the permeate flux to $3.6501L/m^2h$. This indicates that the addition of polyethylene glycol additive led towards better membrane performance. The morphological characteristics of NF membrane were analysed using a Scanning Electron Microscopy.

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References

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