Publication year: 2010Source: Water Research, In Press, Accepted Manuscript, Available online 13 December 2010Jing, Jin , Mohamed Gamal, El-Din , James R., BoltonSeveral organic compounds were used as radical scavengers/reagents to investigate the possibility of the UV/chlorine process being used as an advanced oxidation process (AOP) in the treatment of drinking water and wastewater. The UV/H2O2 process was selected as a reference, so that the results from the UV/chlorine process could be compared with those of the UV/H2O2 process. Methanol was added to active chlorine solutions at both pH 5 and 10 and into hydrogen peroxide samples. The photodegradation quantum yields and the ∙OH radical production yield factors, which are significant in evaluating AOPs, were calculated for both the UV/chlorine and the...