膜生物反应器(membrane bioreactor,MBR)已成为一个十分有前景的废水处理工艺,该工艺具有出水水质好、占地面积小等优势.然而,由于微生物附着在膜表面而发生的生物污染现象,致使出水通量下降,限制了MBR的大规模推广应用.最近,一种新兴的、基于群体感应(quorum sensing,QS)的群体淬灭(quorum quenching,QQ)技术在延缓MBR膜污染领域的应用备受关注.QQ通过干扰群体感应系统而阻止其所依赖信号分子的基因表达,从而可有效抑制膜表面生物膜的形成.本文首先介绍了群体感应机理,并根据不同的群体淬灭物质,归纳总结了群体淬灭技术在延缓MBR膜污染的最新研究进展,最后对该领域的研究进行了展望.
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