Selectivity of Nanoporous MnO2 and TiO2 Membranes for Residual Contaminants in Treated Wastewater

Adewale Giwa; Sung M. Jung; Menatalla Ahmed; Wenjing Fang; Jing Kong; Shadi W. Hasan

doi:10.1002/ceat.201700376

Selectivity of Nanoporous MnO₂ and TiO₂ Membranes for Residual Contaminants in Treated Wastewater

Adewale Giwa
, Sung M. Jung
, Menatalla Ahmed
, Wenjing Fang
, Jing Kong
, Shadi W. Hasan

Chemical and Petroleum Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Treated effluent from an electrically enhanced membrane bioreactor (eMBR) was filtered through MnO₂ or TiO₂ nanoporous membranes for the removal of residual heavy metals, bacteria, and biological oxygen demand (BOD). The fresh and spent membranes were characterized via energy-dispersive X-ray spectroscopy (EDAX), zeta potential analysis, and thermogravimetric analysis (TGA). Water analysis was performed by means of UV/Vis spectrophotometry. For most contaminants, eMBR-TiO₂ showed highest removal efficiency compared to MnO₂ because of the combined adhesion and photocatalytic effects of TiO₂. Meanwhile, eMBR-MnO₂ provided higher removal efficiency for Fe.

Original language	British English
Pages (from-to)	413-420
Number of pages	8
Journal	Chemical Engineering and Technology
Volume	41
Issue number	2
DOIs	https://doi.org/10.1002/ceat.201700376
State	Published - 1 Feb 2018

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

Electrically enhanced membrane bioreactor
Heavy metal removal
Nanoporous membranes
Wastewater treatment

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10.1002/ceat.201700376

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Cite this

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title = "Selectivity of Nanoporous MnO2 and TiO2 Membranes for Residual Contaminants in Treated Wastewater",

abstract = "Treated effluent from an electrically enhanced membrane bioreactor (eMBR) was filtered through MnO2 or TiO2 nanoporous membranes for the removal of residual heavy metals, bacteria, and biological oxygen demand (BOD). The fresh and spent membranes were characterized via energy-dispersive X-ray spectroscopy (EDAX), zeta potential analysis, and thermogravimetric analysis (TGA). Water analysis was performed by means of UV/Vis spectrophotometry. For most contaminants, eMBR-TiO2 showed highest removal efficiency compared to MnO2 because of the combined adhesion and photocatalytic effects of TiO2. Meanwhile, eMBR-MnO2 provided higher removal efficiency for Fe.",

keywords = "Electrically enhanced membrane bioreactor, Heavy metal removal, Nanoporous membranes, Wastewater treatment",

author = "Adewale Giwa and Jung, \{Sung M.\} and Menatalla Ahmed and Wenjing Fang and Jing Kong and Hasan, \{Shadi W.\}",

note = "Funding Information: This work was funded by the Cooperative Agreement between the Masdar Institute of Science and Technology (Masdar Institute), Abu Dhabi, UAE, and the Massachusetts Institute of Technology (MIT), Cambridge, MA, USA, reference 02/MI/ MIT/CP/11/07633/GEN/G/00. Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim",

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AU - Giwa, Adewale

AU - Jung, Sung M.

AU - Ahmed, Menatalla

AU - Fang, Wenjing

AU - Kong, Jing

AU - Hasan, Shadi W.

N1 - Funding Information: This work was funded by the Cooperative Agreement between the Masdar Institute of Science and Technology (Masdar Institute), Abu Dhabi, UAE, and the Massachusetts Institute of Technology (MIT), Cambridge, MA, USA, reference 02/MI/ MIT/CP/11/07633/GEN/G/00. Publisher Copyright: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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N2 - Treated effluent from an electrically enhanced membrane bioreactor (eMBR) was filtered through MnO2 or TiO2 nanoporous membranes for the removal of residual heavy metals, bacteria, and biological oxygen demand (BOD). The fresh and spent membranes were characterized via energy-dispersive X-ray spectroscopy (EDAX), zeta potential analysis, and thermogravimetric analysis (TGA). Water analysis was performed by means of UV/Vis spectrophotometry. For most contaminants, eMBR-TiO2 showed highest removal efficiency compared to MnO2 because of the combined adhesion and photocatalytic effects of TiO2. Meanwhile, eMBR-MnO2 provided higher removal efficiency for Fe.

AB - Treated effluent from an electrically enhanced membrane bioreactor (eMBR) was filtered through MnO2 or TiO2 nanoporous membranes for the removal of residual heavy metals, bacteria, and biological oxygen demand (BOD). The fresh and spent membranes were characterized via energy-dispersive X-ray spectroscopy (EDAX), zeta potential analysis, and thermogravimetric analysis (TGA). Water analysis was performed by means of UV/Vis spectrophotometry. For most contaminants, eMBR-TiO2 showed highest removal efficiency compared to MnO2 because of the combined adhesion and photocatalytic effects of TiO2. Meanwhile, eMBR-MnO2 provided higher removal efficiency for Fe.

KW - Electrically enhanced membrane bioreactor

KW - Heavy metal removal

KW - Nanoporous membranes

KW - Wastewater treatment

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