Electrical Energy per Order (EEO) for UV/H2O2 advanced oxidation process and alternative parameters

O. KEEN; K. BIRCHER; M.I. LITTER; J. BOLTON; T. OPPENLÄNDER

Encuentro; IUVA Americas Meeting; 2020

In the recent decades, electrical energy per order (EEO) has been widely used as a way to characterize the efficiency of advanced oxidation processes (AOPs). Due to a number of misconceptions about the parameter and incomplete reporting of the testing data, many EEO results were not usable as reported. As a result, the AOP industry has moved to avoid the parameter altogether.The goal of this presentation is to summarize the results of the recent IUPAC task force effort on standardizing EEO and clarifying some factors that affect it, in the effort to improve the usefulness of the parameter. Additionally, a new parameter, UV dose/log, was proposed in the recent years for a more unambiguous comparison of reactors and bench-scale to full-scale scale-up. This talk will discuss this parameter as an alternative to EEO.