Oxidation Reduction Potential as a Measure of Disinfection Efficacy at North East Water Reclamation Facility, October, 2014

The presence of nitrogenous organic compounds such as N-Chlorinated amino acids in wastewater results in the formation of organic chloramines, which has become a growing concern as they are considered a very weak disinfectant, and give false results in the N,N-Diethylp-Phenylenediamine titration for Chlorine residual as an indicator for efficient disinfection of the treated wastewater. In this study, the oxidation reduction potential was used as a reliable method to measure the efficacy of disinfection, and also as a tool for the explanation of the fecal coliform results at Northeast Wastewater Reclamation Facility, city of Saint Petersburg, Florida.