Incorporating aluminum species in MnOx(s) coatings on water filtration media

Andrew Jones; Mitsu Murayama; William R. Knocke

doi:10.1002/aws2.1114

Incorporating aluminum species in MnO_x(s) coatings on water filtration media

Andrew Jones, Mitsu Murayama, William R. Knocke

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

4 Citations (Scopus)

Abstract

The manganese oxide (MnO_x(s)) coatings often found on water treatment filtration media are known to effectively remove dissolved manganese from water, but little is known about the chemistry and the formation of these MnO_x(s) coatings. This study evaluated the role of particulate aluminum (Al) species (specifically Al(OH)₃(am)) as a source for aluminum found in these media coatings. Bench-scale experiments and surface analysis techniques evaluated the aluminum and manganese content of the media coatings formed under varying conditions. Particulate aluminum species were shown to be a significant source of aluminum in the MnO_x(s)-based coatings on filter media. Likewise, aluminum incorporation into the media coating did not take place without soluble manganese and free chlorine concurrently being applied to the filter media. Analysis of the MnO_x(s) coating by electron microscopy showed a heterogeneous surface composed of a mix of weakly crystalline manganese oxides existing alongside amorphous Al(OH)₃(am) species.

Original language	English
Article number	e1114
Journal	AWWA Water Science
Volume	1
Issue number	1
DOIs	https://doi.org/10.1002/aws2.1114
Publication status	Published - Jan 1 2019
Externally published	Yes

All Science Journal Classification (ASJC) codes

Ocean Engineering
Waste Management and Disposal
Water Science and Technology
Oceanography

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10.1002/aws2.1114

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title = "Incorporating aluminum species in MnOx(s) coatings on water filtration media",

abstract = "The manganese oxide (MnOx(s)) coatings often found on water treatment filtration media are known to effectively remove dissolved manganese from water, but little is known about the chemistry and the formation of these MnOx(s) coatings. This study evaluated the role of particulate aluminum (Al) species (specifically Al(OH)3(am)) as a source for aluminum found in these media coatings. Bench-scale experiments and surface analysis techniques evaluated the aluminum and manganese content of the media coatings formed under varying conditions. Particulate aluminum species were shown to be a significant source of aluminum in the MnOx(s)-based coatings on filter media. Likewise, aluminum incorporation into the media coating did not take place without soluble manganese and free chlorine concurrently being applied to the filter media. Analysis of the MnOx(s) coating by electron microscopy showed a heterogeneous surface composed of a mix of weakly crystalline manganese oxides existing alongside amorphous Al(OH)3(am) species.",

author = "Andrew Jones and Mitsu Murayama and Knocke, {William R.}",

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AU - Knocke, William R.

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N2 - The manganese oxide (MnOx(s)) coatings often found on water treatment filtration media are known to effectively remove dissolved manganese from water, but little is known about the chemistry and the formation of these MnOx(s) coatings. This study evaluated the role of particulate aluminum (Al) species (specifically Al(OH)3(am)) as a source for aluminum found in these media coatings. Bench-scale experiments and surface analysis techniques evaluated the aluminum and manganese content of the media coatings formed under varying conditions. Particulate aluminum species were shown to be a significant source of aluminum in the MnOx(s)-based coatings on filter media. Likewise, aluminum incorporation into the media coating did not take place without soluble manganese and free chlorine concurrently being applied to the filter media. Analysis of the MnOx(s) coating by electron microscopy showed a heterogeneous surface composed of a mix of weakly crystalline manganese oxides existing alongside amorphous Al(OH)3(am) species.

AB - The manganese oxide (MnOx(s)) coatings often found on water treatment filtration media are known to effectively remove dissolved manganese from water, but little is known about the chemistry and the formation of these MnOx(s) coatings. This study evaluated the role of particulate aluminum (Al) species (specifically Al(OH)3(am)) as a source for aluminum found in these media coatings. Bench-scale experiments and surface analysis techniques evaluated the aluminum and manganese content of the media coatings formed under varying conditions. Particulate aluminum species were shown to be a significant source of aluminum in the MnOx(s)-based coatings on filter media. Likewise, aluminum incorporation into the media coating did not take place without soluble manganese and free chlorine concurrently being applied to the filter media. Analysis of the MnOx(s) coating by electron microscopy showed a heterogeneous surface composed of a mix of weakly crystalline manganese oxides existing alongside amorphous Al(OH)3(am) species.

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Incorporating aluminum species in MnO_x(s) coatings on water filtration media

Abstract

All Science Journal Classification (ASJC) codes

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