Biotechnol Lett (2018) 40:1067–1075 https://doi.org/10.1007/s10529-018-2563-y ORIGINAL RESEARCH PAPER Biofouling control and sludge properties promotion through quorum quenching in membrane bioreactors at two aeration intensities . . . . Jinhui Huang Jianxin Zhou Guangming Zeng Yanling Gu . . . Yi Hu Bi Tang Yahui Shi Lixiu Shi Received: 24 March 2018 / Accepted: 3 May 2018 / Published online: 7 May 2018 Springer Science+Business Media B.V., part of Springer Nature 2018 Abstract Conclusions The better settleability, greater stability Objective A modiﬁed method was used for cell and relatively lower hydrophobicity of activated entrapped beads (CEBs) preparation and two aeration sludge properties was achieved with quorum quench- intensities (low and high aeration intensity) was ing. The scouring effect of CEBs was promoted at high supplied as factors to investigate the change of quorum aeration intensity, further controlling the membrane quenching performance for membrane biofouling in biofouling. membrane bioreactor (MBR). Results Dehydrogenase activity and growth trend of Keywords Aeration intensity Membrane activated sludge were improved at high aeration bioreactor Membrane biofouling Quorum intensity. Compared with C-MBR (with vacant beads), quenching QQ-MBR (with CEBs) had more stable quorum quenching activity and longer application time at high aeration intensity, in
Biotechnology Letters – Springer Journals
Published: May 7, 2018
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