Szukana fraza: [Abstract = The aim of this modification is a search for alternative sources of hydroxyl radicals than H2O2 and support that processes by UV light.. The aim of the study was to determine the efficiency of photocatalysis of low molecular weight PAHs in pretreated coking wastewater under Fenton reaction conditions. The source of hydroxyl radicals was calcium peroxide and the process was supported by UV radiation. The oxidation efficiency was assessed on the basis of PAH analyzes in the pre\-and post\-oxidation samples.]

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