姚鹏城;陈嘉瑜;张永明;温东辉;陈吕军;

• 1:上海师范大学环境与地理科学学院
• 2:清华大学环境学院
• 3:北京大学环境科学与工程学院

摘要(Abstract)：

抗生素抗性基因(ARGs)由于其广泛的传播与转移,成为日益严峻的环境问题。污水处理厂(WWTP)被公认为ARGs的主要来源之一。膜生物反应器(MBR)是一种新型污染物去除工艺。在一个具有传统生物处理和膜系统处理的城镇污水处理系统的进水中,检出17种ARGs,并首次检出甲氧苄啶类ARGs。进水中sulΙ基因的绝对丰度最高,随后依次是tet C、sulⅡ、tet W、dfr A1、flo R和dfr A13基因。不同的处理系统去除同一种ARGs效果各不相同,MBR对ARGs去除效果显著优于传统生物处理工艺,同一个处理系统处理不同类ARGs,四环素类ARGs被去除的效果显著优于其他ARGs被去除的效果,绝对丰度下降了3.8个数量级。ARGs没有真正意义上的去除,只是从水体转移到污泥中,污泥中的ARGs不断积累。

关键词(KeyWords)： 抗生素抗性基因;污水处理厂;膜生物反应器;生物处理工艺

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(51678003)

作者(Author): 姚鹏城;陈嘉瑜;张永明;温东辉;陈吕军;

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