吉林大学学报(地球科学版) ›› 2021, Vol. 51 ›› Issue (3): 887-897.doi: 10.13278/j.cnki.jjuese.20200119
任何军, 林雯雯, 鲁松, 李婷婷, 周睿
Ren Hejun, Lin Wenwen, Lu Song, Li Tingting, Zhou Rui
摘要: 为了探究热活化过硫酸盐(PS)技术对水中氧氟沙星(OFX)的氧化降解作用,考察了反应温度、体系的初始pH、PS的初始浓度、OFX的初始浓度对OFX降解效果的影响;并在单因素实验的基础上,选取反应时间、体系的初始pH、PS的初始浓度和OFX的初始浓度4个因素进行了响应面优化实验。结果表明:最佳降解条件为,反应温度60℃、PS初始浓度4.0 mmol/L、pH=4.7、OFX初始浓度0.03 mmol/L、反应时间60 min,此时OFX的降解率为81.29%;4个因素对热活化PS降解OFX均有影响,其影响显著性从大到小为反应时间、OFX的初始浓度、PS的初始浓度、初始pH。利用响应曲面法模拟出反应体系的最佳条件,经实验验证,OFX降解率为93.78%,与预测最佳结果95.00%基本相符,表明模型可靠有效。
中图分类号:
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