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化工进展  2015 

污水出水有机物对臭氧氧化舒必利的影响

DOI: 10.16085/j.issn.1000-6613.2015.03.043, PP. 867-871

Keywords: 舒必利,氧化,溶液,腐殖酸,牛血清蛋白,海藻酸钠,反应动力学

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Abstract:

臭氧氧化可以有效去除诸如药物及个人护理品(PPCPs)等新兴有机污染物,但去除效果受污水出水水质波动的影响。本研究选择了腐殖酸(HA)、牛血清蛋白(BSA)和海藻酸钠(AGS)3种典型有机物作为模型污水出水有机物(EfOM),从降解速率和矿化程度两方面出发,考察了EfOM对臭氧氧化去除一种常用抗精神病药物残留舒必利(SP)的影响。结果表明,臭氧氧化能有效降低水溶液中SP的浓度,在各反应条件下,反应8min后去除率均可达85%以上。然而,在研究条件下,臭氧氧化对SP的矿化效果不佳,反应25min后的TOC去除率小于10%。加入HA和BSA后,SP的臭氧氧化反应受到抑制,随着HA和BSA浓度的增加,臭氧氧化SP的反应速率逐渐降低,反应溶液的矿化程度有所提高;而浓度为0~3.0mg/(LTOC)的AGS对臭氧氧化SP的影响较小。

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