Characterization of the bacterial community involved in the bioflocculation process of wastewater organic matter in high-loaded MBRs

Verfasser / Beitragende:
[L. Faust, M. Szendy, C. Plugge, P. van den Brink, H. Temmink, H. Rijnaarts]
Ort, Verlag, Jahr:
2015
Enthalten in:
Applied Microbiology and Biotechnology, 99/12(2015-06-01), 5327-5337
Format:
Artikel (online)
ID: 605500509
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024 7 0 |a 10.1007/s00253-015-6402-y  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00253-015-6402-y 
245 0 0 |a Characterization of the bacterial community involved in the bioflocculation process of wastewater organic matter in high-loaded MBRs  |h [Elektronische Daten]  |c [L. Faust, M. Szendy, C. Plugge, P. van den Brink, H. Temmink, H. Rijnaarts] 
520 3 |a High-loaded membrane bioreactors (HL-MBRs), i.e., bioreactors equipped with a membrane for biomass retention and operated at extremely short sludge and hydraulic retention times, can concentrate sewage organic matter to facilitate subsequent energy and chemical recovery from these organics. Bioflocculation, accomplished by microorganisms that produce extracellular polymers, is a very important mechanism in these reactors. Bacterial diversity of the sludge and supernatant fraction of HL-MBRs operated at very short sludge retention times (0.125, 0.5, and 1day) were determined using a PCR-denaturing gradient gel electrophoresis (DGGE) and clone library approach and compared to the diversity in sewage. Already at a sludge retention time (SRT) of 0.125day, a distinct bacterial community developed compared to the community in sewage. Bioflocculation, however, was low and the majority of the bacteria, especially Arcobacter, were present in the supernatant fraction. Upon increasing SRT from 0.125 to 1day, a much stronger bioflocculation was accompanied by an increased abundance of Bacteroidetes in the (solid) sludge fraction: 27.5% at an SRT of 0.5day and 46.4% at an SRT of 1day. Furthermore, cluster analysis of DGGE profiles revealed that the bacterial community structure in the sludge was different from that in the supernatant. To localize specific bacterial classes in the sludge flocs, fluorescence in situ hybridization (FISH) was carried out with three different bacterial probes. This showed that Betaproteobacteria formed clusters in the sludge flocs whereas Alphaproteobacteria and Gammaproteobacteria were mainly present as single cells. 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Bioflocculation  |2 nationallicence 
690 7 |a Bacterial community  |2 nationallicence 
690 7 |a Membrane bioreactor  |2 nationallicence 
690 7 |a Wastewater treatment  |2 nationallicence 
700 1 |a Faust  |D L.  |u Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, The Netherlands  |4 aut 
700 1 |a Szendy  |D M.  |u Campus Essen-Biofilm Centre, Universität Duisburg-Essen, Universitätsstr. 5, 45141, Essen, Germany  |4 aut 
700 1 |a Plugge  |D C.  |u Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, The Netherlands  |4 aut 
700 1 |a van den Brink  |D P.  |u Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, The Netherlands  |4 aut 
700 1 |a Temmink  |D H.  |u Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, The Netherlands  |4 aut 
700 1 |a Rijnaarts  |D H.  |u Sub-department of Environmental Technology, Wageningen University, P.O. Box 8129, 6700 EV, Wageningen, The Netherlands  |4 aut 
773 0 |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/12(2015-06-01), 5327-5337  |x 0175-7598  |q 99:12<5327  |1 2015  |2 99  |o 253 
856 4 0 |u https://doi.org/10.1007/s00253-015-6402-y  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00253-015-6402-y  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Faust  |D L.  |u Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, The Netherlands  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Szendy  |D M.  |u Campus Essen-Biofilm Centre, Universität Duisburg-Essen, Universitätsstr. 5, 45141, Essen, Germany  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Plugge  |D C.  |u Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, The Netherlands  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a van den Brink  |D P.  |u Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, The Netherlands  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Temmink  |D H.  |u Wetsus-Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC, Leeuwarden, The Netherlands  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Rijnaarts  |D H.  |u Sub-department of Environmental Technology, Wageningen University, P.O. Box 8129, 6700 EV, Wageningen, The Netherlands  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Applied Microbiology and Biotechnology  |d Springer Berlin Heidelberg  |g 99/12(2015-06-01), 5327-5337  |x 0175-7598  |q 99:12<5327  |1 2015  |2 99  |o 253