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| Research of oxidative degradation of erythromycin in water by sodium persulfate activated by ferrous ions |
| Yan Haijun1, Wu Yunxia1,2, Ji Qi1, Gao Liying1, Gao Jinlong1,3, Gu Na2,3 |
| 1.School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China；2. School of Science, Hebei University of Science and Technology, Shijiazhuang 050018, China;3. Key Laboratory of Medicinal Molecular Chemistry in Hebei Province, Shijiazhuang 050018, China |
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Abstract Because the traditional water treatment method is more difficult to deal with the antibiotics in water, the degradations of erythromycin in water using sulfate radical generated by ferrous ion-activated sodium persulfate were studied. The effects of Na2S2O8 dosage, initial pH value and molar ratio of Na2S2O8 to Fe2+ on degradation were investigated. The results show that with the greater concentration of Na2S2O8 in a certain range, the greater the degradation rate is; in alkaline condition, the degradation effect of erythromycin is better; when the molar ratio of Na2S2O8 to Fe2+ is 2∶1, degradation rate is the highest, and instead of increasing the proportion of the degradation the rate is decreased.
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