engleski

Degradation of phtalates by advanced oxidation process

Phthalates are plasticizers and are concerned environmental endocrine-disrupting compounds. Due to their extensive usage in plastic manufacturing and personal care products as well as the potential to leach out from these products, phthalates have been detected in various aquatic environments including drinking water, groundwater, surface water, and wastewater. The photochemical degradation of phthalates in UV-C/H2O2 and UV-C/Na2S2O8 advanced oxidation processes was studied and the apparent degradation kinetic constants (first-order kinetic model) based on the elementary reactions were determined. Other processes parameters (pH, oxidant concentration) have also been investigated. The processes of the photolysis alone, oxidation by H2O2 and Na2S2O8 alone were also observed. The results showed that photooxidative degradation of phthalates by UV-C/H2O2 and UV-C/Na2S2O8 has several times higher rate of degradation.

phthalates, photolysis, advanced oxidation processes, plasticizers

nije evidentirano