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Lookup NU author(s): Dr Hua Cheng,
Emeritus Professor Keith Scott,
Professor Paul ChristensenORCiD
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The application of a zero gap solid polymer electrolyte (ZGSPE) reactor to deminealise nitrate ions in aqueous wastewater is described. The following performance data for the reduction of a simulated alkaline solution with 16.1 mM nitrate ions under galvanostatic operation were achieved: percentage of nitrate removal up to 100% rates of nitrate removal up to 0.057 mol cm-2 h-1 space-time yields up to 5.4 kg m-3 h-1 current efficiencies up to 24.5% and energy consumption between 40.1 and 63.3 kW h kg-1. The beneficial effects of higher temperatures and nitrate ion concentrations and using a suitable electrolyte flow rate on the activity selectivity and efficiency is reported. PdRh1.5/Ti mini-mesh electrode used in the study was stable after a cumulative use of 1000 h. © Springer 2005.
Author(s): Cheng H, Scott K, Christensen PA
Publication type: Article
Publication status: Published
Journal: Journal of Applied Electrochemistry
Print publication date: 01/06/2005
ISSN (print): 0021-891X
ISSN (electronic): 1572-8838
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