The aim of this study was to make an inventory of water quality and operational parameters which could affect manganese removal through aeration and rapid sand filtration and to establish correlations between these parameters and manganese removal efficiency. The focus of the overview was on manganese removal efficiency in the first aeration-filtration stage of conventional groundwater treatment plants (GWTPs). Data from selected full-scale GWTPs have been collected, and univariate and multivariate statistical analyses were conducted. Multivariate statistics indicated that multiple parameters including NH4+ removal efficiency, iron loading per filter run (FR) and pH of filtrate play a significant role in manganese removal, while other parameters (oxygen concentration in filtrate, filtration rate and empty bed contact time (EBCT)) were found to be of secondary importance. Univariate statistical assessment of the data suggests that very effective manganese removal can be achieved when all of the following conditions are met: NH4+ removal efficiency >85%, pH of filtrate >7.1, iron loading per FR <2.7 kg Fe/m2, oxygen concentration in filtrate >1 mg O2/L, filtration rate <10.5 m/h and EBCT >11.5 min.
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June 2014
This article was originally published in
Journal of Water Supply: Research and Technology-Aqua
Article Contents
Research Article|
November 30 2013
Assessment of manganese removal from over 100 groundwater treatment plants
Jantinus H. Bruins;
1UNESCO-IHE Institute for Water Education, Westvest 7, 2611 AX, Delft, The Netherlands
2WLN, Rijksstraatweg 85, 9756 AD, Glimmen, The Netherlands
3Technical University Delft, Stevinweg 1, 2628 CN, Delft, The Netherlands
E-mail: [email protected]
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Dirk Vries;
Dirk Vries
4KWR Water Cycle Research Institute, P.O. Box 1072, 3430 BB, Nieuwegein, The Netherlands
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Branislav Petrusevski;
Branislav Petrusevski
1UNESCO-IHE Institute for Water Education, Westvest 7, 2611 AX, Delft, The Netherlands
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Yness M. Slokar;
Yness M. Slokar
1UNESCO-IHE Institute for Water Education, Westvest 7, 2611 AX, Delft, The Netherlands
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Maria D. Kennedy
Maria D. Kennedy
1UNESCO-IHE Institute for Water Education, Westvest 7, 2611 AX, Delft, The Netherlands
3Technical University Delft, Stevinweg 1, 2628 CN, Delft, The Netherlands
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Journal of Water Supply: Research and Technology-Aqua (2014) 63 (4): 268–280.
Article history
Received:
April 29 2013
Accepted:
October 19 2013
Citation
Jantinus H. Bruins, Dirk Vries, Branislav Petrusevski, Yness M. Slokar, Maria D. Kennedy; Assessment of manganese removal from over 100 groundwater treatment plants. Journal of Water Supply: Research and Technology-Aqua 1 June 2014; 63 (4): 268–280. doi: https://doi.org/10.2166/aqua.2013.086
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