第一作者：Ge Song
通讯作者：周明华 教授
通讯单位：南开大学环境科学与工程学院
DOI:10.1016/j.scitotenv.2022.160246
Fig. 1. Comparison of 2,4-DCP removal (a), the degradation rate constant (b), the changes in DO (d) by different processes and chlorine equilibrium in UV/sulfite (c). Conditions: [2,4-DCP] = 50 mg/L, [Na2SO3] = 5 mM, pH = 7.
Fig. 2. 2,4-DCP removal (a), the degradation rate constant (b), dechlorination efficiency (c) and TOC removal (d) with nitrogen aeration and without aeration (control). Conditions: [2,4-DCP] = 50 mg/L, [Na2SO3] = 5 mM, pH = 7.
Fig. 3. 2,4-DCP removal (a), the degradation rate constant and dechlorination efficiency (b), consumption of sulfite (c) and formation of dechlorination intermediates phenol (d), 2-CP (e), 4-CP (f) by UV/sulfite process at different sulfite concentration. Conditions: [2,4-DCP] = 50 mg/L, pH = 7.
Fig. 4. 2,4-DCP removal (a, d), the degradation rate constant (b, e), dechlorination efficiency (c, f) by UV/sulfite process at different pH and 2,4-DCP concentration. Conditions: [2,4-DCP] = 50 mg/L, [Na2SO3] = 5 mM, pH = 7.
Fig. 5. 2,4-DCP removal (a), the degradation rate constant (b) and the change of DO (c) and pH (d) by UV/sulfite process at different aeration rate. Conditions: [2,4-DCP] = 50 mg/L, [Na2SO3] = 5 mM, pH = 7.
Song, G.; Su, P.; Zhang, Q.; Wang, X.; Zhou, M. Revisiting UV/Sulfite Exposed to Air: A Redox Process for Reductive Dechlorination and Oxidative Mineralization. Science of The Total Environment 2023, 859, 160246.
https://doi.org/10.1016/j.scitotenv.2022.160246.
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