Surface grafting techniques on the improvement of membrane bioreactor: State-of-the-art advances

Xin Jiat Lee, Pau Loke Show, Tomohisa Katsuda, Wei-Hsin Chen, Jo-Shu Chang

Research output: Contribution to journalReview article

3 Citations (Scopus)

Abstract

Membrane bioreactor (MBR) is regarded as the state-of-the-art technology in separation processes. Surface modification techniques play a critical role in improving the conventional membrane system which is mostly hydrophobic in nature. The hydrophobic nature of membranes is known to cause fouling, resulting in high maintenance costs and shorter lifespan of MBR. Thus, surface grafting aims to improve the hydrophilicity of bio-based membrane systems. This review describes the major surface grafting techniques currently used in membranes, including photo induced grafting, plasma treatment and plasma induced grafting, radiation induced grafting, thermal induced grafting and ozone induced grafting. The advantages and disadvantages of each method is discussed along with their parametric studies. The potential applications of MBR are very promising, but some integral membrane properties could be a major challenge that hinders its wider reach. The fouling issue could be resolved with the surface grafting techniques to achieve better performance of MBRs.

Original languageEnglish
Pages (from-to)489-502
Number of pages14
JournalBioresource technology
Volume269
DOIs
Publication statusPublished - 2018 Dec 1

Fingerprint

Bioreactors
bioreactor
membrane
Membranes
Fouling
fouling
Plasmas
plasma
state of the art
Ozone
Hydrophilicity
Surface treatment
ozone
Radiation
cost
Costs

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

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abstract = "Membrane bioreactor (MBR) is regarded as the state-of-the-art technology in separation processes. Surface modification techniques play a critical role in improving the conventional membrane system which is mostly hydrophobic in nature. The hydrophobic nature of membranes is known to cause fouling, resulting in high maintenance costs and shorter lifespan of MBR. Thus, surface grafting aims to improve the hydrophilicity of bio-based membrane systems. This review describes the major surface grafting techniques currently used in membranes, including photo induced grafting, plasma treatment and plasma induced grafting, radiation induced grafting, thermal induced grafting and ozone induced grafting. The advantages and disadvantages of each method is discussed along with their parametric studies. The potential applications of MBR are very promising, but some integral membrane properties could be a major challenge that hinders its wider reach. The fouling issue could be resolved with the surface grafting techniques to achieve better performance of MBRs.",
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Surface grafting techniques on the improvement of membrane bioreactor : State-of-the-art advances. / Lee, Xin Jiat; Show, Pau Loke; Katsuda, Tomohisa; Chen, Wei-Hsin; Chang, Jo-Shu.

In: Bioresource technology, Vol. 269, 01.12.2018, p. 489-502.

Research output: Contribution to journalReview article

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T1 - Surface grafting techniques on the improvement of membrane bioreactor

T2 - State-of-the-art advances

AU - Lee, Xin Jiat

AU - Show, Pau Loke

AU - Katsuda, Tomohisa

AU - Chen, Wei-Hsin

AU - Chang, Jo-Shu

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AB - Membrane bioreactor (MBR) is regarded as the state-of-the-art technology in separation processes. Surface modification techniques play a critical role in improving the conventional membrane system which is mostly hydrophobic in nature. The hydrophobic nature of membranes is known to cause fouling, resulting in high maintenance costs and shorter lifespan of MBR. Thus, surface grafting aims to improve the hydrophilicity of bio-based membrane systems. This review describes the major surface grafting techniques currently used in membranes, including photo induced grafting, plasma treatment and plasma induced grafting, radiation induced grafting, thermal induced grafting and ozone induced grafting. The advantages and disadvantages of each method is discussed along with their parametric studies. The potential applications of MBR are very promising, but some integral membrane properties could be a major challenge that hinders its wider reach. The fouling issue could be resolved with the surface grafting techniques to achieve better performance of MBRs.

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