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Optimum Operating Parameters for Hollow Fiber Membranes in Direct Contact Membrane Distillation

  • Research Article - Chemical Engineering
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Abstract

The aim of this study is the optimization of the operating conditions of PVDF-co-HFP hollow fiber membrane for direct contact membrane distillation applications. The influence of the operation parameters, such as the feed temperature (40–80 \({^{\circ} {C}}\)), the feed flow rate (0.3–0.6L/min), and the PVP content (0–9%), as well as the feed concentration increased from 3.5 to 5.0 wt%, and their interactions on the PVDF-co-HFP hollow fiber membrane permeate flux have been investigated. The optimum operating parameters have been specified using second-order FULL FACTORIAL and Taguchi optimization techniques to find optimum values for operation parameters in the DCMD process in order to obtain a good value of permeate flux. The results showed that PVDF-co-HFP membrane has the best performance at 21 (\({{kg/m}^{2} \,{h}}\)) when a hot feed temperature of 80\({^{\circ} {C}}\) with 0.6 L/min flow rate, 3.5wt% NaCl feed concentration and 9 wt% PVP content in the casting solution were used. The PVP % content and inlet temperature had a significant impact on the permeate flux, while feed flow rate and feed concentration have less influence.

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Abbreviations

ANOVA:

Analysis of variance

Cm:

Distillation coefficient

CMDC:

Continuous membrane distillation crystallization

DCMD:

Direct contact membrane distillation

DMAc:

Dimethylacetamide

EE:

Thermal efficiency

MD:

Membrane distillation

PVDF:

Poly (vinylidene fluoride

PVDF-co-HFP:

Poly (vinylidene fluoride-co-hexafluoropropylene)

PVP:

Polyvinylpyrrolidone

SWGMD:

Sweeping gas membrane distillation

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Authors and Affiliations

  1. Faculty of Chemical and Natural Recourses, University Malaysia Pahang, Lebuhraya Tun Razak, 26300, Kuantan, Pahang, Malaysia

    Khalid T. Rashid & Sunarti Binti Abdul Rahman

  2. Membrane Technology Research Unit, Chemical Engineering Department, University of Technology, Baghdad, Iraq

    Qusay F. Alsalhy

Authors
  1. Khalid T. Rashid
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  2. Sunarti Binti Abdul Rahman
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  3. Qusay F. Alsalhy
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Corresponding authors

Correspondence to Sunarti Binti Abdul Rahman or Qusay F. Alsalhy.

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Rashid, K.T., Rahman, S.B.A. & Alsalhy, Q.F. Optimum Operating Parameters for Hollow Fiber Membranes in Direct Contact Membrane Distillation. Arab J Sci Eng 41, 2647–2658 (2016). https://doi.org/10.1007/s13369-016-2178-3

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  • DOI: https://doi.org/10.1007/s13369-016-2178-3

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