Comparison of EE/M and Cumulative Efficiency Methods for the Evaluation and Optimization of Advanced Oxidation Processes for DOC Removal from Water

Author： Peyton Gary R. Fleck Michael J. LeFaivre Mary Hagen

Publisher： Science and Technology Network Inc.

ISSN： 1203-8407

Source： Journal of Advanced Oxidation Technologies, Vol.6, Iss.2, 2003-07, pp. : 176-185

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Two published criteria for analyzing and optimizing Advanced Oxidation Processes are compared with respect to their usefulness for process optimization and for determination of the most cost-effective of several candidate processes for a particular application. The Cumulative Efficiency (CE) method compares the amount of target contaminant removed per amount of oxidant used. The Electrical Energy per Mass (EE/M) method compares electrical energy required per kilogram of target pollutant removed. The methods were evaluated using data from treatability studies for DOC removal from a ground water contaminated with 50 mg/L of organic carbon, using processes consisting of combinations of ozone, hydrogen peroxide, and ultraviolet light. It was found that the CE method gave better information about how to manipulate the chemistry for optimization, while the EE/M method provided clearer guidance for process selection on economic grounds, making the methods complimentary in treatability studies. The CE method also predicted that a tandem process might function more efficiently than either of the component single processes, which was found experimentally to be the case.