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Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress

An integrated OCO reactor was used to investigate the performance and microbial community successional changes under long-term exposure to relatively low levels of ZnO nanoparticles (NPs). Relatively higher concentrations of ZnO NPs (1.5 mg L(−1)) could adversely affect the nitrogen and phosphorus r...

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Autores principales: Liu, Zhenghui, Zhou, Huifang, Liu, Jiefeng, Huang, Mei, Yin, Xudong, Liu, Zhisen, Mao, Yufeng, Xie, Wenyu, Li, Dehao
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9083345/
https://www.ncbi.nlm.nih.gov/pubmed/35541049
http://dx.doi.org/10.1039/c8ra05057k
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author Liu, Zhenghui
Zhou, Huifang
Liu, Jiefeng
Huang, Mei
Yin, Xudong
Liu, Zhisen
Mao, Yufeng
Xie, Wenyu
Li, Dehao
author_facet Liu, Zhenghui
Zhou, Huifang
Liu, Jiefeng
Huang, Mei
Yin, Xudong
Liu, Zhisen
Mao, Yufeng
Xie, Wenyu
Li, Dehao
author_sort Liu, Zhenghui
collection PubMed
description An integrated OCO reactor was used to investigate the performance and microbial community successional changes under long-term exposure to relatively low levels of ZnO nanoparticles (NPs). Relatively higher concentrations of ZnO NPs (1.5 mg L(−1)) could adversely affect the nitrogen and phosphorus removal in the reactor. The diversity and richness of the microbial communities chronically declined with an increasing concentration of ZnO NPs higher than 1.5 mg L(−1). With the elevated ZnO NPs, the phyla abundances of Proteobacteria, Firmicutes and Actinobacteria decreased slightly, whereas those of Bacteroidetes and Acidobacteria increased. Bacteroidetes and Proteobacteria were the predominant phyla in each phase (with a variation in abundance), together with some common taxa responses to ZnO NP stress as revealed by Venn diagram analysis. Some genera associated with the removal of nitrogen and phosphorus, such as Acinetobacter, Stenotrophomonas and Pseudomonas, decreased significantly. The present results are significant for expanding our understanding of the functional performance and microbial community successions of activated sludge which has experienced long-term exposure to environmentally relevant concentrations of ZnO NPs.
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spelling pubmed-90833452022-05-09 Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress Liu, Zhenghui Zhou, Huifang Liu, Jiefeng Huang, Mei Yin, Xudong Liu, Zhisen Mao, Yufeng Xie, Wenyu Li, Dehao RSC Adv Chemistry An integrated OCO reactor was used to investigate the performance and microbial community successional changes under long-term exposure to relatively low levels of ZnO nanoparticles (NPs). Relatively higher concentrations of ZnO NPs (1.5 mg L(−1)) could adversely affect the nitrogen and phosphorus removal in the reactor. The diversity and richness of the microbial communities chronically declined with an increasing concentration of ZnO NPs higher than 1.5 mg L(−1). With the elevated ZnO NPs, the phyla abundances of Proteobacteria, Firmicutes and Actinobacteria decreased slightly, whereas those of Bacteroidetes and Acidobacteria increased. Bacteroidetes and Proteobacteria were the predominant phyla in each phase (with a variation in abundance), together with some common taxa responses to ZnO NP stress as revealed by Venn diagram analysis. Some genera associated with the removal of nitrogen and phosphorus, such as Acinetobacter, Stenotrophomonas and Pseudomonas, decreased significantly. The present results are significant for expanding our understanding of the functional performance and microbial community successions of activated sludge which has experienced long-term exposure to environmentally relevant concentrations of ZnO NPs. The Royal Society of Chemistry 2018-07-30 /pmc/articles/PMC9083345/ /pubmed/35541049 http://dx.doi.org/10.1039/c8ra05057k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Liu, Zhenghui
Zhou, Huifang
Liu, Jiefeng
Huang, Mei
Yin, Xudong
Liu, Zhisen
Mao, Yufeng
Xie, Wenyu
Li, Dehao
Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress
title Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress
title_full Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress
title_fullStr Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress
title_full_unstemmed Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress
title_short Evaluation of performance and microbial community successional patterns in an integrated OCO reactor under ZnO nanoparticle stress
title_sort evaluation of performance and microbial community successional patterns in an integrated oco reactor under zno nanoparticle stress
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9083345/
https://www.ncbi.nlm.nih.gov/pubmed/35541049
http://dx.doi.org/10.1039/c8ra05057k
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