Electro-Disinfection of Municipal Wastewater: Laboratory Scale Comparison between Direct Current and Alternating Current

Enrique J. La Motta, Guillermo J. Rincón, Julio Acosta, Xavier Chávez
2017 International Journal of Engineering Research and Applications  
Electrodisinfection of wastewater has been investigated extensively in the past, although a consensus over the use of direct current (DC) or alternating current (AC) as the most efficient electricity source has not been reached to date. The research presented herein compares the use of DC and AC in electrodisinfection of municipal wastewater aiming to provide conclusive evidence on the benefits of using one type of current over the other. During the experimental phase, a bench-scale
more » ... h-scale electrodisinfection reactor equipped with iridiu m o xidecoated titanium electrodes was operated continuously, and E.coli inactivation, free and total chlorine generation were measured. The results observed indicate that, under the experimental conditions, DC represents a more efficient and economical alternative to electrodisinfection than AC.
doi:10.9790/9622-0701050612 fatcat:lh5khtzd5zew5avxyw5ukctj5q