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论文类型：期刊论文

发表时间：2009-01-01

发表刊物：BIORESOURCE TECHNOLOGY

收录刊物：SCIE、PubMed

卷号：100

期号：1

页面范围：244-248

ISSN号：0960-8524

关键字：Membrane bioreactor; Bioaugmentation; Bromoamine acid; Ribosomal intergenic spacer

摘要：The performances and microbial population changes in laboratory-scale membrane bioreactor (MBR) augmented with Sphingomonas xenophaga QYY were investigated in the present study. It was demonstrated that after 30 days acclimation, the non-augmented MBR system were able to degrade bromoamine acid (BAA) well. However, the efficiency of the system decreased with BAA concentration increasing. While the augmented MBR showed higher capability, in which the color and COD removal were more than 90% and 50%, respectively. By ribosomal intergenic spacer analysis (RISA), it was found that BAA-utilizing populations gradually increased to become the dominant species in the non-augmented MBR. However, the augmented MBR possessed relatively stable treatment abilities, in which the introduced strain QYY could be persistent and co-exist well with the indigenous populations. (C) 2008 Elsevier Ltd. All rights reserved.