臭氧-过硫酸盐联合高级氧化法降解水中抗生素
摘要
抗生素的降解实验。在研究比较的基础上,考察了影响抗生素降解速率的关键因素。经过 20 分钟的反应时间内,臭氧可
以有效去除水中的抗生素,而 PS 工艺对抗生素的去除效果并不理想。增加臭氧发生速率或增加 PS 浓度都会促进联合高
级氧化法降解抗生素的速率;增加抗生素的初始浓度则会降低降解速率。溶液的 pH 值会影响抗生素在联合高级氧化法
中的降解速率(pH 值越高,降解速率越高)。联合高级氧化法作为一种典型的高级氧化工艺,不仅能更有效地去除水中
的抗生素,而且反映了两者之间的协同作用。此外,通过对污水的实验,发现污水中的一些阴离子会促进或抑制高级氧
化法降解抗生素的效率。这可能是因为这些阴离子影响了·OH 的生成过程。
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DOI: http://dx.doi.org/10.12361/2661-3743-05-03-125654
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