不同深度工艺对原水中抗生素的去除效果
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摘要
针对水源中存在的微量抗生素问题,开展GAC、空气-BAC和臭氧-BAC等深度工艺对TMP、SD、SMR、SM2、SCP、SMX、ROX等7种不同浓度抗生素的去除效果研究。结果表明,常规工艺对7种抗生素去除率较低(7.50%～33.75%)。臭氧-BAC、空气-BAC和GAC出水抗生素总去除率分别为98.26%、85.88%和66.26%,而单种抗生素的去除率分别为95.71%～100%、63.25%～100%和32.87%～97.49%,深度处理工艺对抗生素的去除效果优于常规处理。就抗生素种类而言,6种磺胺类抗生素去除率优于大环内脂类抗生素(ROX)。TMP相对去除效果最佳,深度工艺均可完全去除。臭氧生物活性炭工艺对几种抗生素均具有较好去除效果,尤其对于常规工艺去除较差的ROX的去除率可达95.85%。
To solve the problem of antibiotics in water sources,the removal of seven different antibioticssuch as TMP,SD,SMR,SM2,SCP,SMEX and ROX by GAC,air-BAC,and O_3-BAC were studied.The results showed that the removal rate of 7 antibiotics by conventional treatment was low,only 7.50%-33.75%.The total removal rates of O_3-BAC,air-BAC and GAC on antibiotics were 98.26%,85.88% and 66.26%,respectively.The removal effect of antibiotics by advanced treatment process is better than the conventional treatment.The sulfonamides had higher removal rates than that of macrolides.TMP had the best removal effect and can be completely removed by advanced treatment process.O_3-BAC exhibited better removal of antibiotics,especially the removal rate of ROX with poor removal by conventional treatment can reach 95.85%.
To solve the problem of antibiotics in water sources,the removal of seven different antibioticssuch as TMP,SD,SMR,SM2,SCP,SMEX and ROX by GAC,air-BAC,and O_3-BAC were studied.The results showed that the removal rate of 7 antibiotics by conventional treatment was low,only 7.50%-33.75%.The total removal rates of O_3-BAC,air-BAC and GAC on antibiotics were 98.26%,85.88% and 66.26%,respectively.The removal effect of antibiotics by advanced treatment process is better than the conventional treatment.The sulfonamides had higher removal rates than that of macrolides.TMP had the best removal effect and can be completely removed by advanced treatment process.O_3-BAC exhibited better removal of antibiotics,especially the removal rate of ROX with poor removal by conventional treatment can reach 95.85%.
引文
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[6]姜蕾,崔长征,黄岭.典型抗生素在饮用水厂的去除特征与健康风险[J].净水技术,2016,35(sl):100-103,121.
[2]金磊,胡涛.水源水中微量抗生素的去除工艺[J].净水技术,2018,37(s2):24-28.
[3]刘昔,王智,王学雷,等.我国典型区域地表水环境中抗生素污染现状及其生态风险评价[J].环境科学,2019(5):1-13.
[4]叶必雄,张岚.环境水体及饮用水中抗生素污染现状及健康影响分析[J].环境与健康杂志,2015,32(2):173-178.
[5]MARIE-CLAIRE DANNER,ANNE ROBERTSON,VOLKER BEHRENDS,et al.Antibiotic pollution in surface fresh waters:Occurrence and effects[J].Science of the Total Environment,2019,664:793-804.
[6]姜蕾,崔长征,黄岭.典型抗生素在饮用水厂的去除特征与健康风险[J].净水技术,2016,35(sl):100-103,121.