Bernd Weber, Alma Chávez
Water treatment systems are essential for reducing environmental impacts and providing potable water to meet quality standards. This study aims to evaluate the effectiveness of a low-cost Cu-Sn6 catalyst compared to a noble Cu-Pd catalyst for the electrocatalytic removal of nitrates from contaminated water in both laboratory and continuous pilot settings. Utilizing saturated carbonic acid as the anolyte solution stabilized the pH levels across both compartments of the system. Performance criteria, defined by nitrate removal efficiency and nitrogen transfer to gas, showed optimum results with specific currents of 1.16 A m-2 in the laboratory setup and 1.53 A m-2 in the pilot installation. Furthermore, variables such as pH adjustments and catalyst choice were found to significantly influence nitrate reduction efficacy, indicating the necessity for real-time process optimization during pilot operations. Mass spectrometry analysis of process gases revealed hydrogen production, suggesting potential complimentary use of heterogeneous catalysts for enhanced nitrogen reduction on additional surfaces. This study provides insights into optimizing electrocatalytic systems for effective nitrate remediation in groundwater.
@article{fac8d566-7ce5-4cfa-8bb1-d8f655600a0f,
title={Electro-catalytic Reduction of Aqueous Nitrates using Cu-Sn and Cu-Pd Cathodes},
author={Bernd Weber and Alma Chávez},
year={2019},
language={en}
}TY - JOUR TI - Electro-catalytic Reduction of Aqueous Nitrates using Cu-Sn and Cu-Pd Cathodes AU - Bernd Weber AU - Alma Chávez PY - 2019 LA - en ER -
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