Skip to main content
Log in

Treatment of dye wastewater by direct contact membrane distillation using superhydrophobic nanofibrous high-impact polystyrene membranes

  • Original Paper
  • Published:
International Journal of Environmental Science and Technology Aims and scope Submit manuscript

Abstract

A superhydrophobic and nanofibrous high-impact polystyrene (HIPS) membrane was fabricated using electroblowing technique. The neat HIPS membrane was then subjected to the hot-pressing process to increase mechanical strength, narrowing pore size distribution, and also improving liquid entry pressure of water (LEP). The membrane characteristics (surface morphology, hydrophobicity, LEP, porosity, as well as mechanical properties) and direct contact membrane distillation (DCMD) performance (permeate flux and dye rejection factor) of the fabricated membranes were assessed using synthetic disperse dye solutions (0.4, 0.8 and 1.2 g/L) under constant DCMD condition. HIPS membranes maintained their durability even after operating at the highest concentration. The obtained results demonstrated that the dye removals were higher than 99.8% when different concentrations of dye were used as the feed. The permeate flux decline and surface fouling were increased by increasing the feed concentration. However, the surface contact angle of membranes subjected to DCMD tests was still in the range of hydrophobic surface (˃ 90°). Given these attributes, nanofibrous HIPS membrane can be considered as a potential alternative for membrane distillation in dying water treatment. Furthermore, DCMD can utilize the high temperature of dyeing baths as a viable heat source.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

Abbreviations

COD:

Chemical oxygen demand

CTAB:

Cetyl trimethyl ammonium bromide

DCMD:

Direct contact membrane distillation

DI water:

Deionized water

DMF:

Dimethylformamide

EB:

Elongation at break

EC:

Electrical conductivity

ELB:

Electroblowing

ES:

Electrospinning

FD:

Flux decline

H-60:

Neat HIPS membrane

HIPS:

High-impact polystyrene

HP-60:

Hot-pressed HIPS membrane

IPA:

Isopropyl alcohol

LEP:

Liquid entry pressure of water

MD:

Membrane distillation

MF:

Microfiltration

NF:

Nanofiltration

PS:

Polystyrene

PVDF:

Polyvinylidene fluoride

PTFE:

Polytetrafluoroethylene

SAN:

Styrene-acrylonitrile

SEM:

Scanning electron microscope

TS:

Tensile strength

UF:

Ultrafiltration

WCA:

Water contact angle

WPC:

Water production cost

A :

Membrane effective area

J :

Flux

k :

Thermal conductivity

r :

Mean pore size

R (%):

Rejection factor (%)

t :

DCMD operating time

W :

Weight

ρ :

Density

ε :

Porosity

δ :

Thickness

∆:

Difference

D:

Dry

f:

Feed

g:

Air or water vapor

i:

IPA

m:

Membrane

max:

Maximum

p:

Permeate or polymer

s:

Polymer

t:

At a given time

W:

Wet

0:

Initial time

1:

Feed containing 0.4 g/L dye

2:

Feed containing 0.8 g/L dye

3:

Feed containing 1.2 g/L dye

References

Download references

Acknowledgements

The authors want to acknowledge Mr. Amirhossein Sadeghzadeh for his valuable practical comments and efforts in the nanopolymer laboratory of the SRBIAU.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to S. Bazgir.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Editorial responsibility: Samareh Mirkia.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Khoshnevisan, S., Bazgir, S. Treatment of dye wastewater by direct contact membrane distillation using superhydrophobic nanofibrous high-impact polystyrene membranes. Int. J. Environ. Sci. Technol. 18, 1513–1528 (2021). https://doi.org/10.1007/s13762-020-02894-8

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13762-020-02894-8

Keywords

Navigation