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Int. J. Environ. Res. Public Health 2017, 14(7), 807; doi:10.3390/ijerph14070807

Using Iron-Manganese Co-Oxide Filter Film to Remove Ammonium from Surface Water

1
Key Laboratory of Northwest Water Resource, Environment and Ecology, MOE, Xi’an University of Architecture and Technology, Xi’an 710055, China
2
Shanxi Key Laboratory of Environmental Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
3
Institute of Water Resources and Hydro-Electric Engineering, Xi’an University of Technology, Xi’an 710055, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Farrukh Ahmad
Received: 1 July 2017 / Revised: 8 July 2017 / Accepted: 13 July 2017 / Published: 19 July 2017
(This article belongs to the Section Environmental Science and Engineering)
View Full-Text   |   Download PDF [6258 KB, uploaded 19 July 2017]   |  

Abstract

An iron-manganese co-oxide filter film (MeOx) has been proven to be a good catalyst for the chemical catalytic oxidation of ammonium in groundwater. Compared with groundwater, surface water is generally used more widely and has characteristics that make ammonium removal more difficult. In this study, MeOx was used to remove ammonium from surface water. It indicated that the average ammonium removal efficiency of MeOx was greater than 90%, even though the water quality changed dramatically and the water temperature was reduced to about 6–8 °C. Then, through inactivating microorganisms, it showed that the removal capability of MeOx included both biological (accounted for about 41.05%) and chemical catalytic oxidation and chemical catalytic oxidation (accounted for about 58.95%). The investigation of the characterizations suggested that MeOx was formed by abiotic ways and the main elements on the surface of MeOx were distributed homogenously. The analysis of the catalytic oxidation process indicated that ammonia nitrogen may interact with MeOx as both ammonia molecules and ammonium ions and the active species of O2 were possibly O and O2. View Full-Text
Keywords: iron-manganese co-oxide; ammonium removal; surface water; chemical catalytic oxidation iron-manganese co-oxide; ammonium removal; surface water; chemical catalytic oxidation
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Zhang, R.; Huang, T.; Wen, G.; Chen, Y.; Cao, X.; Zhang, B. Using Iron-Manganese Co-Oxide Filter Film to Remove Ammonium from Surface Water. Int. J. Environ. Res. Public Health 2017, 14, 807.

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