Performance of photocatalytic microfiltration with hollow fiber membrane

Jong Tae Jung, Jong Oh Kim, Won Youl Choi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

The purpose of this study is to investigate the effect of the operational parameters of the UV intensity and TiO2 dosage for the removal of humic acid and heavy metals. It also evaluated the applicability of hollow fiber microfiltration for the separation of TiO2 particles in photocatalytic microfiltration systems. TiO2 powder P-25 Degussa and hollow fiber microfiltration with a 0.4 μm nominal pore size were used for experiments. Under the conditions of pH 7 and a TiO2 dosage 0.3 g/L, the reaction rate constant (k) for humic acid and heavy metals increased with an increase of the UV intensity in each process. For the UV/TiO2/MF process, the reaction rate constant (k) for humic acid and Cu, with the exception of Cr in a low range of UV intensity, was higher compared to that of UV/TiO2 due to the adsorption of the membrane surface. The reaction rate constant (k) increased as the TiO2 dosage increased in the range of 0.1-0.3 g/L. However it decreased for a concentration over 0.3 g/L of TiO2. For the UV/TiO2/MF process, TiO2 particles could be effectively separated from treated water via membrane rejection. The average removal efficiency for humic acid and heavy metals during the operational time was over 90 %. Therefore, photocatalysis with a membrane is believed to be a viable process for humic acid and heavy metals removal.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design
Pages95-98
Number of pages4
StatePublished - 2007 Dec 1
Event8th International Symposium on Eco-Materials Processing and Design, ISEPD-8 - Kitakyushu, Japan
Duration: 2007 Jan 112007 Jan 13

Publication series

NameMaterials Science Forum
Volume544-545
ISSN (Print)0255-5476

Other

Other8th International Symposium on Eco-Materials Processing and Design, ISEPD-8
CountryJapan
CityKitakyushu
Period07/01/1107/01/13

Fingerprint

Humic Substances
Microfiltration
hollow
heavy metals
Heavy Metals
Heavy metals
membranes
Membranes
acids
fibers
Fibers
Reaction rates
Rate constants
reaction kinetics
dosage
metals
Photocatalysis
rejection
Powders
Pore size

Keywords

  • Heavy metal
  • Hollow fiber
  • Humic acid
  • Microfiltration
  • Photocatalytic
  • TiO

Cite this

Jung, J. T., Kim, J. O., & Choi, W. Y. (2007). Performance of photocatalytic microfiltration with hollow fiber membrane. In Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design (pp. 95-98). (Materials Science Forum; Vol. 544-545).
Jung, Jong Tae ; Kim, Jong Oh ; Choi, Won Youl. / Performance of photocatalytic microfiltration with hollow fiber membrane. Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design. 2007. pp. 95-98 (Materials Science Forum).
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abstract = "The purpose of this study is to investigate the effect of the operational parameters of the UV intensity and TiO2 dosage for the removal of humic acid and heavy metals. It also evaluated the applicability of hollow fiber microfiltration for the separation of TiO2 particles in photocatalytic microfiltration systems. TiO2 powder P-25 Degussa and hollow fiber microfiltration with a 0.4 μm nominal pore size were used for experiments. Under the conditions of pH 7 and a TiO2 dosage 0.3 g/L, the reaction rate constant (k) for humic acid and heavy metals increased with an increase of the UV intensity in each process. For the UV/TiO2/MF process, the reaction rate constant (k) for humic acid and Cu, with the exception of Cr in a low range of UV intensity, was higher compared to that of UV/TiO2 due to the adsorption of the membrane surface. The reaction rate constant (k) increased as the TiO2 dosage increased in the range of 0.1-0.3 g/L. However it decreased for a concentration over 0.3 g/L of TiO2. For the UV/TiO2/MF process, TiO2 particles could be effectively separated from treated water via membrane rejection. The average removal efficiency for humic acid and heavy metals during the operational time was over 90 {\%}. Therefore, photocatalysis with a membrane is believed to be a viable process for humic acid and heavy metals removal.",
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Jung, JT, Kim, JO & Choi, WY 2007, Performance of photocatalytic microfiltration with hollow fiber membrane. in Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design. Materials Science Forum, vol. 544-545, pp. 95-98, 8th International Symposium on Eco-Materials Processing and Design, ISEPD-8, Kitakyushu, Japan, 07/01/11.

Performance of photocatalytic microfiltration with hollow fiber membrane. / Jung, Jong Tae; Kim, Jong Oh; Choi, Won Youl.

Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design. 2007. p. 95-98 (Materials Science Forum; Vol. 544-545).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Performance of photocatalytic microfiltration with hollow fiber membrane

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AU - Kim, Jong Oh

AU - Choi, Won Youl

PY - 2007/12/1

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N2 - The purpose of this study is to investigate the effect of the operational parameters of the UV intensity and TiO2 dosage for the removal of humic acid and heavy metals. It also evaluated the applicability of hollow fiber microfiltration for the separation of TiO2 particles in photocatalytic microfiltration systems. TiO2 powder P-25 Degussa and hollow fiber microfiltration with a 0.4 μm nominal pore size were used for experiments. Under the conditions of pH 7 and a TiO2 dosage 0.3 g/L, the reaction rate constant (k) for humic acid and heavy metals increased with an increase of the UV intensity in each process. For the UV/TiO2/MF process, the reaction rate constant (k) for humic acid and Cu, with the exception of Cr in a low range of UV intensity, was higher compared to that of UV/TiO2 due to the adsorption of the membrane surface. The reaction rate constant (k) increased as the TiO2 dosage increased in the range of 0.1-0.3 g/L. However it decreased for a concentration over 0.3 g/L of TiO2. For the UV/TiO2/MF process, TiO2 particles could be effectively separated from treated water via membrane rejection. The average removal efficiency for humic acid and heavy metals during the operational time was over 90 %. Therefore, photocatalysis with a membrane is believed to be a viable process for humic acid and heavy metals removal.

AB - The purpose of this study is to investigate the effect of the operational parameters of the UV intensity and TiO2 dosage for the removal of humic acid and heavy metals. It also evaluated the applicability of hollow fiber microfiltration for the separation of TiO2 particles in photocatalytic microfiltration systems. TiO2 powder P-25 Degussa and hollow fiber microfiltration with a 0.4 μm nominal pore size were used for experiments. Under the conditions of pH 7 and a TiO2 dosage 0.3 g/L, the reaction rate constant (k) for humic acid and heavy metals increased with an increase of the UV intensity in each process. For the UV/TiO2/MF process, the reaction rate constant (k) for humic acid and Cu, with the exception of Cr in a low range of UV intensity, was higher compared to that of UV/TiO2 due to the adsorption of the membrane surface. The reaction rate constant (k) increased as the TiO2 dosage increased in the range of 0.1-0.3 g/L. However it decreased for a concentration over 0.3 g/L of TiO2. For the UV/TiO2/MF process, TiO2 particles could be effectively separated from treated water via membrane rejection. The average removal efficiency for humic acid and heavy metals during the operational time was over 90 %. Therefore, photocatalysis with a membrane is believed to be a viable process for humic acid and heavy metals removal.

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M3 - Conference contribution

AN - SCOPUS:38349143174

SN - 0878494316

SN - 9780878494316

T3 - Materials Science Forum

SP - 95

EP - 98

BT - Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design

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Jung JT, Kim JO, Choi WY. Performance of photocatalytic microfiltration with hollow fiber membrane. In Eco-Materials Processing and Design VIII - ISEPD-8, Proceedings of the 8th International Symposium on Eco-Materials Processing and Design. 2007. p. 95-98. (Materials Science Forum).