Impact analysis of hydraulic loading rate on constructed wetland: Insight into the response of bulk substrate and root-associated microbiota

Zhang, Nan; Lu, Dingnan; Kan, Peiying; Yangyao, Jiannan; Yao, Zhiyuan; Zhu, David Z.; Gan, Hu; Zhu, Bofeng

doi:10.1016/j.watres.2022.118337

Cited by 34 publications

(3 citation statements)

References 58 publications

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“…Thus, unclassified_Burkholderiales may have a growth-promoting effect on Hydrocotyle vulgaris [29]. In constructed wetlands, unclassified_Burkholderiales may enhance the uptake and utilization of nutrients such as nitrogen and phosphorus by promoting the growth of Hydrocotyle vulgaris, preventing the invasion of pathogens into Hydrocotyle vulgaris, improving the efficiency of nitrogen and phosphorus removal, and forming a healthy inter-root microbial community structure [30].…”

Section: Discussionmentioning

confidence: 99%

“…Water 2022, 14, x FOR PEER REVIEW 13 of 15 phosphorus removal, and forming a healthy inter-root microbial community structure [30]. Microbial community similarities among structures and constructed wetlands at different stages at the gate level and genus level were explored by cluster analysis.…”

Section: Analysis Of Microbial Community Structure and Diversity In C...mentioning

confidence: 99%

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Efficacy of Nitrogen and Phosphorus Removal and Microbial Characterization of Combined A2O-MBBR Constructed Wetlands

Li,

Dong,

Bai

et al. 2023

Water

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A combined anaerobic–anoxic–oxic moving bed biofilm reactor (A2O-MBBR) constructed wetlands process was used to treat low carbon-to-nitrogen (C/N) simulated sewage. The results showed that the removal rates of chemical oxygen demand (COD), ammonia nitrogen (NH4+-N), total nitrogen (TN), and total phosphorus (TP) by this process were 94.06%, 94.40%, 67.11%, and 84.57%, respectively, and the concentrations of COD, NH4+-N, TN, and TP in the effluent were lower than the Class I-A standard of GB18918-2002. In the anoxic zone, NH4+-N had an inhibitory effect on phosphorus uptake via phosphorus-accumulating organisms (PAOs). The highest community diversity was observed in the anoxic zone sludge at 24 d. During the water-quality-shock loads stage, microbial community diversity decreased in a combined A2O-MBBR constructed wetlands reactor. At the phylum level, bacteria within the mature activated sludge were dominated by Proteobacteria, while Planctomycetes bacteria were the dominant species in the constructed wetlands. At the genus level, Tolumonas spp. were the dominant species in the 12 d and 24 d constructed wetlands and the anaerobic zone, with relative abundance percentages ranging from 20.24 to 33.91%. In the water-quality-shock loads stage, they were replaced by denitrifying bacteria such as Herbaspirillum spp. Unclassified_Burkholderiales was the dominant species in the constructed wetlands, with a relative abundance of 33.09%.

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Section: Discussionmentioning

confidence: 99%

Section: Analysis Of Microbial Community Structure and Diversity In C...mentioning

confidence: 99%

Efficacy of Nitrogen and Phosphorus Removal and Microbial Characterization of Combined A2O-MBBR Constructed Wetlands

Li,

Dong,

Bai

et al. 2023

Water

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“…In addition to dominantly abundant taxa, rare taxa of high diversity and low abundance were also suggested to be important in many ecosystem functions and promote community stability and multifunctionality as the more responsive subcommunity to environmental disturbance ( Mo et al, 2018 ). The importance of rare taxa in ecosystem functionality has been recently reported in the likes of soil–plant systems ( Xiong et al, 2021 ), grassland ( Soliveres et al, 2016 ), and wetland ecosystems ( Zhang N. et al, 2022 ). Subsequently, ANCOM analysis revealed several rare taxa to be differentially abundant in relation to aquaculture activity, such as the subtaxa of Desulfobacterota; they have significantly higher relative abundances in open water reference sites.…”

Section: Discussionmentioning

confidence: 99%

How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water

Lee

et al. 2022

Front. Microbiol.

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Nutrient pollution in the coastal environment has been accelerated by progressively intensifying aquaculture activities. Excessive nutrients can lead to coastal eutrophication with serious economic and ecological consequences. In this study, we studied coastal planktonic microbial community over a year to understand the aquaculture impact on coastal water quality and function. We observed increased total inorganic nitrogen concentrations in active fish farms to favor the diverse Alpha- and Gammaproteobacteria. Bacterial community alpha diversity in fish farms was positively correlated with total inorganic nitrogen, and active fish farming co-influenced the bacterial structural composition and regional beta diversity. By analyzing the nitrogen cycle-related functional compositions and pathways using PICRUSt2 prediction on inferred genomes, we identified the contribution of over 600 bacterial species to four major pathways. Enhanced nitrogen load in active fish farms was positively correlated with elevated dissimilatory nitrate reduction and denitrification pathway abundances. Fallowed fish farms were characterized by a predicted high abundance of nirA and narB genes contributing to assimilatory nitrate reduction pathway due to the prevalence of Cyanobacteria. Overall, these results suggested active operation and short hiatus in coastal aquaculture practices could rapidly impact planktonic bacterial communities and further influence nitrogen cycling and associated processes. These findings will improve the understanding of the responses and interactions between microbiome and aquaculture activities. In a world of increasing aquaculture demands, this work has important implications for sustainable water resource management and development.

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Microbial community structure and potential function associated with poly-3-hydroxybutyrate biopolymer-boosted activation of peroxymonosulfate for waste-activated sludge decontamination

Hung

Chen

Huang

et al. 2023

Bioresource Technology

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Impact analysis of hydraulic loading rate on constructed wetland: Insight into the response of bulk substrate and root-associated microbiota

Cited by 34 publications

References 58 publications

Efficacy of Nitrogen and Phosphorus Removal and Microbial Characterization of Combined A2O-MBBR Constructed Wetlands

Efficacy of Nitrogen and Phosphorus Removal and Microbial Characterization of Combined A2O-MBBR Constructed Wetlands

How elevated nitrogen load affects bacterial community structure and nitrogen cycling services in coastal water

Microbial community structure and potential function associated with poly-3-hydroxybutyrate biopolymer-boosted activation of peroxymonosulfate for waste-activated sludge decontamination

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