Transformation of atrazin by different advanced oxidation processes
In this work ultraviolet photolysis (UV) and three advanced oxidation processes (AOPs), vacuum ultraviolet (VUV) photolysis, ultraviolet photolysis combined with vacuum ultraviolet photolysis (UV/VUV) and gamma (γ) radiolysis were used for the generation of reactive primary free radicals (hydroxyl r...
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| Dokumentumtípus: | Könyv része |
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2017
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| Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
23 |
| Kulcsszavak: | Analitikai kémia |
| Online Access: | http://acta.bibl.u-szeged.hu/56154 |
| Tartalmi kivonat: | In this work ultraviolet photolysis (UV) and three advanced oxidation processes (AOPs), vacuum ultraviolet (VUV) photolysis, ultraviolet photolysis combined with vacuum ultraviolet photolysis (UV/VUV) and gamma (γ) radiolysis were used for the generation of reactive primary free radicals (hydroxyl radical (•OH), hydrated electron (eaq ), hydrogen radical (•H)) to induce the transformation of atrazine in aqueous solution. We examined different reaction conditions (solutions of atrazine saturated with dissolved oxygen or nitrogen). The aim of this work is the comparison of the oxidative transformation of atrazine during UV (254 nm), UV/VUV (254/185 nm) and VUV (172 nm) photolysis, as well as γ radiolysis. The efficiency of the photolytic methods increased in the following order: UV< VUV< UV/VUV photolysis. The economic efficiency of the used processes was compared based on Electric Energy per Order (EEO). γ radiolysis was found to be the economically most feasible method compared to UV/VUV, VUV and UV photolysis. |
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| Terjedelem/Fizikai jellemzők: | 51-55 |
| ISBN: | 978-963-306-563-1 |