Microbial community composition in different carbon source types of biofilm A/O-MBR systems with complete sludge retention

© 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group. In this study, the three biofilm-anoxic-oxic-MBR systems were operated in parallel using different carbon source feed types. The three systems were operated with complete sludge retention to compare microbial community compo...

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Main Authors: Adoonsook Dome, Chia Yuan Chang, Wongrueng Aunnop, Pumas Chayakorn
Format: Journal
Published: 2020
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/68417
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-684172020-04-02T15:26:42Z Microbial community composition in different carbon source types of biofilm A/O-MBR systems with complete sludge retention Adoonsook Dome Chia Yuan Chang Wongrueng Aunnop Pumas Chayakorn Environmental Science © 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group. In this study, the three biofilm-anoxic-oxic-MBR systems were operated in parallel using different carbon source feed types. The three systems were operated with complete sludge retention to compare microbial community composition and system efficiency. High average removal of ammonia and COD was obtained in the three reactors. However, total nitrogen and total phosphorus removal efficiency were significantly higher in the VFAs feed systems when compared with the glucose feed system. The highest and most stable BNR efficiency was observed when acetate was used as a carbon source. The qPCR analysis revealed that ammonium oxidizing bacteria, denitrifiers and total bacteria were all highest in the acetate feed system followed by the propionate feed system. Moreover, among all carbon source types, the PUS-biofilm could maintain a higher degree of abundance of total bacteria than the sludge biomass. Meanwhile, ammonium oxidizing bacteria and denitrifiers were enriched in the sludge biomass rather than in the PUS-biofilm. The results of illumina sequencing revealed that acetate followed by propionate were favourable to the growth of microorganisms that were associated with the BNR process, which was the main reason for the high efficiency of nutrient removal in the acetate and propionate feed systems. 2020-04-02T15:26:42Z 2020-04-02T15:26:42Z 2020-01-01 Journal 1479487X 09593330 2-s2.0-85078823682 10.1080/09593330.2020.1720301 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85078823682&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/68417
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Environmental Science
spellingShingle Environmental Science
Adoonsook Dome
Chia Yuan Chang
Wongrueng Aunnop
Pumas Chayakorn
Microbial community composition in different carbon source types of biofilm A/O-MBR systems with complete sludge retention
description © 2020, © 2020 Informa UK Limited, trading as Taylor & Francis Group. In this study, the three biofilm-anoxic-oxic-MBR systems were operated in parallel using different carbon source feed types. The three systems were operated with complete sludge retention to compare microbial community composition and system efficiency. High average removal of ammonia and COD was obtained in the three reactors. However, total nitrogen and total phosphorus removal efficiency were significantly higher in the VFAs feed systems when compared with the glucose feed system. The highest and most stable BNR efficiency was observed when acetate was used as a carbon source. The qPCR analysis revealed that ammonium oxidizing bacteria, denitrifiers and total bacteria were all highest in the acetate feed system followed by the propionate feed system. Moreover, among all carbon source types, the PUS-biofilm could maintain a higher degree of abundance of total bacteria than the sludge biomass. Meanwhile, ammonium oxidizing bacteria and denitrifiers were enriched in the sludge biomass rather than in the PUS-biofilm. The results of illumina sequencing revealed that acetate followed by propionate were favourable to the growth of microorganisms that were associated with the BNR process, which was the main reason for the high efficiency of nutrient removal in the acetate and propionate feed systems.
format Journal
author Adoonsook Dome
Chia Yuan Chang
Wongrueng Aunnop
Pumas Chayakorn
author_facet Adoonsook Dome
Chia Yuan Chang
Wongrueng Aunnop
Pumas Chayakorn
author_sort Adoonsook Dome
title Microbial community composition in different carbon source types of biofilm A/O-MBR systems with complete sludge retention
title_short Microbial community composition in different carbon source types of biofilm A/O-MBR systems with complete sludge retention
title_full Microbial community composition in different carbon source types of biofilm A/O-MBR systems with complete sludge retention
title_fullStr Microbial community composition in different carbon source types of biofilm A/O-MBR systems with complete sludge retention
title_full_unstemmed Microbial community composition in different carbon source types of biofilm A/O-MBR systems with complete sludge retention
title_sort microbial community composition in different carbon source types of biofilm a/o-mbr systems with complete sludge retention
publishDate 2020
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85078823682&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/68417
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