Novel GO/OMWCNTs mixed-matrix membrane with enhanced antifouling property for palm oil mill effluent treatment

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Abstract

Membrane process is considered an effective and economical treatment technology to palm oil mill effluent (POME) which is a major pollution source discharged from the palm oil industry. In this study, graphene oxide (GO) and oxidized multi-walled carbon nanotubes (OMWCNTs) were used as nano additive in coagulation bath to prepare polyvinylidene fluoride (PVDF) membrane via in-situ colloidal precipitation method. The successful synthesis of carbon nanomaterials GO and OMWCNTs were validated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and observed using field emission scanning electron microscopy (FESEM). In general, incorporation of GO and OMWCNTs into membrane matrix via in-situ colloidal precipitation method have significant effect on membrane characterization including contact angle, surface charge, porosity and pore size of the membrane. As observed using FESEM images, GO nanosheets had blocked some areas of the membrane surface thus reducing the effective filtration area. The mixed-matrix membranes M1c, M3a, and M5b demonstrated improved water permeability of 43.99 L/m2·h·bar, 52.62 L/m2·h·bar, and 43.38 L/m2·h·bar, respectively owing to thinner skin layer, bigger voids, and increased hydrophilicity. The rejection performance of fabricated membrane was evaluated using diluted aerobic POME on physical characteristics (color, turbidity, total suspended solids (TSS), total dissolved solids (TDS), pH) and chemical properties (chemical oxygen demand (COD), hardness, total chlorine, and phosphorus). As compared to pristine membrane, the mixed-matrix membrane, M1c had improved the rejection of TDS, phosphorus, hardness, COD, chlorine, turbidity, color, and TSS with maximum rejection percentage of 1.51%, 6.55%, 21.79%, 75.5%, 76%, 81.94%, 86.3%, and 100%, respectively. This research demonstrated that the deposition of carbon nanomaterials increased the membrane hydrophilicity and formed a repulsive boundary barrier that enhanced antifouling properties.

Original languageEnglish
Pages (from-to)337-349
Number of pages13
JournalSeparation and Purification Technology
Volume177
DOIs
Publication statusPublished - 28 Apr 2017

Fingerprint

Effluent treatment
Carbon Nanotubes
Palm oil
Graphite
Oxides
Graphene
Carbon nanotubes
Membranes
Chlorine
Chemical oxygen demand
Hydrophilicity
Turbidity
Nanostructured materials
Field emission
Phosphorus
Effluents
palm oil
Carbon
Hardness
Color

Keywords

  • Graphene oxide
  • In-situ colloidal precipitation method
  • Mixed-matrix membrane
  • Oxidized multi-walled carbon nanotubes
  • Palm oil mill effluent

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation

Cite this

@article{80bacd199b61438e8722bc37d9fcb54c,
title = "Novel GO/OMWCNTs mixed-matrix membrane with enhanced antifouling property for palm oil mill effluent treatment",
abstract = "Membrane process is considered an effective and economical treatment technology to palm oil mill effluent (POME) which is a major pollution source discharged from the palm oil industry. In this study, graphene oxide (GO) and oxidized multi-walled carbon nanotubes (OMWCNTs) were used as nano additive in coagulation bath to prepare polyvinylidene fluoride (PVDF) membrane via in-situ colloidal precipitation method. The successful synthesis of carbon nanomaterials GO and OMWCNTs were validated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and observed using field emission scanning electron microscopy (FESEM). In general, incorporation of GO and OMWCNTs into membrane matrix via in-situ colloidal precipitation method have significant effect on membrane characterization including contact angle, surface charge, porosity and pore size of the membrane. As observed using FESEM images, GO nanosheets had blocked some areas of the membrane surface thus reducing the effective filtration area. The mixed-matrix membranes M1c, M3a, and M5b demonstrated improved water permeability of 43.99 L/m2·h·bar, 52.62 L/m2·h·bar, and 43.38 L/m2·h·bar, respectively owing to thinner skin layer, bigger voids, and increased hydrophilicity. The rejection performance of fabricated membrane was evaluated using diluted aerobic POME on physical characteristics (color, turbidity, total suspended solids (TSS), total dissolved solids (TDS), pH) and chemical properties (chemical oxygen demand (COD), hardness, total chlorine, and phosphorus). As compared to pristine membrane, the mixed-matrix membrane, M1c had improved the rejection of TDS, phosphorus, hardness, COD, chlorine, turbidity, color, and TSS with maximum rejection percentage of 1.51{\%}, 6.55{\%}, 21.79{\%}, 75.5{\%}, 76{\%}, 81.94{\%}, 86.3{\%}, and 100{\%}, respectively. This research demonstrated that the deposition of carbon nanomaterials increased the membrane hydrophilicity and formed a repulsive boundary barrier that enhanced antifouling properties.",
keywords = "Graphene oxide, In-situ colloidal precipitation method, Mixed-matrix membrane, Oxidized multi-walled carbon nanotubes, Palm oil mill effluent",
author = "Ho, {K. C.} and {Yeit Haan}, Teow and Mohammad, {Abdul Wahab} and {Wei Lun}, Ang",
year = "2017",
month = "4",
day = "28",
doi = "10.1016/j.seppur.2017.01.014",
language = "English",
volume = "177",
pages = "337--349",
journal = "Separation and Purification Technology",
issn = "1383-5866",
publisher = "Elsevier",

}

TY - JOUR

T1 - Novel GO/OMWCNTs mixed-matrix membrane with enhanced antifouling property for palm oil mill effluent treatment

AU - Ho, K. C.

AU - Yeit Haan, Teow

AU - Mohammad, Abdul Wahab

AU - Wei Lun, Ang

PY - 2017/4/28

Y1 - 2017/4/28

N2 - Membrane process is considered an effective and economical treatment technology to palm oil mill effluent (POME) which is a major pollution source discharged from the palm oil industry. In this study, graphene oxide (GO) and oxidized multi-walled carbon nanotubes (OMWCNTs) were used as nano additive in coagulation bath to prepare polyvinylidene fluoride (PVDF) membrane via in-situ colloidal precipitation method. The successful synthesis of carbon nanomaterials GO and OMWCNTs were validated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and observed using field emission scanning electron microscopy (FESEM). In general, incorporation of GO and OMWCNTs into membrane matrix via in-situ colloidal precipitation method have significant effect on membrane characterization including contact angle, surface charge, porosity and pore size of the membrane. As observed using FESEM images, GO nanosheets had blocked some areas of the membrane surface thus reducing the effective filtration area. The mixed-matrix membranes M1c, M3a, and M5b demonstrated improved water permeability of 43.99 L/m2·h·bar, 52.62 L/m2·h·bar, and 43.38 L/m2·h·bar, respectively owing to thinner skin layer, bigger voids, and increased hydrophilicity. The rejection performance of fabricated membrane was evaluated using diluted aerobic POME on physical characteristics (color, turbidity, total suspended solids (TSS), total dissolved solids (TDS), pH) and chemical properties (chemical oxygen demand (COD), hardness, total chlorine, and phosphorus). As compared to pristine membrane, the mixed-matrix membrane, M1c had improved the rejection of TDS, phosphorus, hardness, COD, chlorine, turbidity, color, and TSS with maximum rejection percentage of 1.51%, 6.55%, 21.79%, 75.5%, 76%, 81.94%, 86.3%, and 100%, respectively. This research demonstrated that the deposition of carbon nanomaterials increased the membrane hydrophilicity and formed a repulsive boundary barrier that enhanced antifouling properties.

AB - Membrane process is considered an effective and economical treatment technology to palm oil mill effluent (POME) which is a major pollution source discharged from the palm oil industry. In this study, graphene oxide (GO) and oxidized multi-walled carbon nanotubes (OMWCNTs) were used as nano additive in coagulation bath to prepare polyvinylidene fluoride (PVDF) membrane via in-situ colloidal precipitation method. The successful synthesis of carbon nanomaterials GO and OMWCNTs were validated using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and observed using field emission scanning electron microscopy (FESEM). In general, incorporation of GO and OMWCNTs into membrane matrix via in-situ colloidal precipitation method have significant effect on membrane characterization including contact angle, surface charge, porosity and pore size of the membrane. As observed using FESEM images, GO nanosheets had blocked some areas of the membrane surface thus reducing the effective filtration area. The mixed-matrix membranes M1c, M3a, and M5b demonstrated improved water permeability of 43.99 L/m2·h·bar, 52.62 L/m2·h·bar, and 43.38 L/m2·h·bar, respectively owing to thinner skin layer, bigger voids, and increased hydrophilicity. The rejection performance of fabricated membrane was evaluated using diluted aerobic POME on physical characteristics (color, turbidity, total suspended solids (TSS), total dissolved solids (TDS), pH) and chemical properties (chemical oxygen demand (COD), hardness, total chlorine, and phosphorus). As compared to pristine membrane, the mixed-matrix membrane, M1c had improved the rejection of TDS, phosphorus, hardness, COD, chlorine, turbidity, color, and TSS with maximum rejection percentage of 1.51%, 6.55%, 21.79%, 75.5%, 76%, 81.94%, 86.3%, and 100%, respectively. This research demonstrated that the deposition of carbon nanomaterials increased the membrane hydrophilicity and formed a repulsive boundary barrier that enhanced antifouling properties.

KW - Graphene oxide

KW - In-situ colloidal precipitation method

KW - Mixed-matrix membrane

KW - Oxidized multi-walled carbon nanotubes

KW - Palm oil mill effluent

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