Reduction of nitrate in groundwater by hematite supported bimetallic catalyst

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In this study, nitrate reduction of real groundwater sample by 2.2% Cu-1.6% Pd-hematite catalyst was evaluated at different nitrate concentrations, catalyst concentrations, and recycling. Results show that the nitrate reduction is improved by increasing the catalyst concentration. Specific nitrate removal by 2.2% Cu-1.6% Pd-hematite increased linearly with the increase of nitrate concentration showing that the catalyst possesses significantly higher reduction capacity. More than 95% nitrate reduction was observed over five recycles by 2.2% Cu-1.6% Pd-hematite with similar to 56% nitrogen selectivity in all recycling batches. The results from this study indicate that stable reduction of nitrate in groundwater can be achieved by 2.2% Cu-1.6% Pd-hematite over the wide range of initial nitrate inputs.
Publisher
TECHNO-PRESS
Issue Date
2015-03
Language
English
Article Type
Article
Citation

ADVANCES IN ENVIRONMENTAL RESEARCH, v.5, no.1, pp.51 - 59

ISSN
2234-1722
DOI
10.12989/aer.2016.5.1.051
URI
http://hdl.handle.net/10203/214558
Appears in Collection
CE-Journal Papers(저널논문)
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