INTER-CALIBRATION OF OH RADICAL SOURCES AND WATER-QUALITY PARAMETERS

OH radicals are the key oxidants that control most Advanced Oxidation Processes (AOPs) currently applied in water technology and that also o ccur in some natural systems such as cloud waters. The efficiencies of the various OH radical sources can be experimentally quantified and c ompared when they are calibrated by following the oxidation of inter-c alibrated reference compounds that react during the process only with OH radicals. To apply and generalize the results, however, water quali ty parameters controlling the lifetime of OH radicals via OH-scavengin g reactions by pollutants and further solutes must also be quantified by methods that allow for calibrations. (C) 1997 IAWQ. Published by El sevier Science Ltd.