Effect of Hydrocarbonates and Chlorides on the Photodestruction of Bisphenol A

Resumo

The effect hydrocarbonates and chlorides, the most common anions in natural and waste waters, on the oxidation of bisphenol A by persulfate activated with iron ions and simulated solar radiation is studied. It is established that hydrocarbonates have an inhibiting effect due to deactivation of Fe²⁺ ions and non-target expenditure of the in situ generated reactive oxygen species by reactions with hydrocarbonates. It is found that chlorides have a promoting effect: the reaction of bisphenol A oxidation is accelerated by 1.25–1.4 times, and the degree of mineralization grows by 18–44%. The established patterns are in good agreement with the existing data for real aqueous systems (surface waters of lakes Baikal and Gusinoe).