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Microbial communities, nitrogen biogeochemistry and nitrogen removal

Linking structure and function of microbial communities responsible for sedimentary nitrogen processes in North Carolina estuaries

Linking structure and function of microbial communities responsible for sedimentary nitrogen processes in North Carolina estuaries

... ABSTRACT Knowledge of community structural response to environmental variation is essential for understanding the microbial regulation of nitrogen removal processes in aquatic systems. In particular, ...

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Metagenomics of microbial communities involved in nitrogen cycling

Metagenomics of microbial communities involved in nitrogen cycling

... simple microbial communities such as enrichment bioreactors, but gaining wider application as sequencing throughput and analysis methods ...complex communities relied mostly on characterizing the ...

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Microplastics affect sedimentary microbial communities and nitrogen cycling

Microplastics affect sedimentary microbial communities and nitrogen cycling

... Massive amounts of plastic enter and reside within riverine, estuarine and coastal environments. Although it was once con- sidered completely recalcitrant, we now know that plastic degrades to varying extents in the ...

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Recent advances in the biogeochemistry of nitrogen in the ocean

Recent advances in the biogeochemistry of nitrogen in the ocean

... fying microbial communities across environmental gradients within the water column and coastal sediments of the Baltic Sea by employing one of the two nitrite reductase genes, nirS, as a molecular marker ...

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Nitrogen biogeochemistry of an urban rooftop farm

Nitrogen biogeochemistry of an urban rooftop farm

... cohesive communities ( Lovell, 2010; Lovell and Taylor, 2013; McPhearson et ...as nitrogen (N) from application of high amounts of fertilizer, has led to multiple negative consequences, including ...

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Modelling of microbial populations in biofilm reactors for nitrogen removal from wastewater

Modelling of microbial populations in biofilm reactors for nitrogen removal from wastewater

... of microbial diversity, distinguishing between different species performing the same ...reflect microbial steady state ...increased nitrogen loading rate, was ...concerning microbial ...

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Factors Controlling Microbial Nitrogen Removal Efficacy in Constructed Stormwater Wetlands

Factors Controlling Microbial Nitrogen Removal Efficacy in Constructed Stormwater Wetlands

... bacterial communities. Particle size of sediment could also influence microbial N removal processes since higher denitrification has been measured with fine textured soils with high contents of silt ...

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Linking Nitrogen Load to the Structure and Function of Wetland Soil and Rhizosphere Microbial Communities

Linking Nitrogen Load to the Structure and Function of Wetland Soil and Rhizosphere Microbial Communities

... thropogenic nitrogen (N) inputs from agriculture and fossil fuel combustion have been recognized as a severe threat to biodiversity and ecosystem functioning, such as control of greenhouse gas ...the ...

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Linking Nitrogen Load to the Structure and Function of Wetland Soil and Rhizosphere Microbial Communities

Linking Nitrogen Load to the Structure and Function of Wetland Soil and Rhizosphere Microbial Communities

... Sample collection and experimental setup. Plants and sandy soil were sampled from the Raven- vennen (51.4399°N, 6.1961°E) in Limburg, The Netherlands (August 2015), and returned to the Radboud University greenhouse ...

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Effects of nitrogen deposition on soil microbial communities in temperate and subtropical forests in China

Effects of nitrogen deposition on soil microbial communities in temperate and subtropical forests in China

... of nitrogen deposition on soil microbial communities in temperate and subtropical forests in China Tian, Di ; Jiang, Lai ; Ma, Suhui ; Fang, Wenjing ; Schmid, Bernhard ; Xu, Longchao ; Zhu, Jianxiao ...

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Litter Quality Modulates Effects of Dissolved Nitrogen on Leaf Decomposition by Stream Microbial Communities

Litter Quality Modulates Effects of Dissolved Nitrogen on Leaf Decomposition by Stream Microbial Communities

... tree and shrub species dominated by Fagus sylvatica, Corylus avellana, Salix caprea and Quercus robur) and exhibiting intermediate dissolved N concentrations com- pared to our experimental N gradient (0.75 mg L −1 on ...

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Nitrogen removal in a two-chambered microbial fuel cell: Establishment of a nitrifying-denitrifying microbial community on an intermittent aerated cathode

Nitrogen removal in a two-chambered microbial fuel cell: Establishment of a nitrifying-denitrifying microbial community on an intermittent aerated cathode

... removal in the denitrification batch assays using cathode effluent from MFC cathode 16. chamber and different biomass sources after 7 days[r] ...

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Environmental regulation of tidal wetland microbial communities and associated biogeochemistry

Environmental regulation of tidal wetland microbial communities and associated biogeochemistry

... Rima, I am forever in your debt. Thanks to Dr. Scott Neubauer for giving me knowledge and insight into the field of biogeochemistry. He has been an invaluable collaborator on this work, and has been ever willing ...

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Microbial nitrogen cycling on the Greenland Ice Sheet

Microbial nitrogen cycling on the Greenland Ice Sheet

... indicated nitrogen fixation both in a debris-rich 100 m marginal zone and up to ...tential nitrogen fixation only occurred when concentrations of dissolved and sediment-bound inorganic nitrogen were ...

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Nitrogen removal and reuse in land-based aquaculture

Nitrogen removal and reuse in land-based aquaculture

... through microbial transformation and assimilation into ...beneficial microbial pathways of nitrification, denitrification and ...recycle nitrogen in the system, such as DNRA and mineralisation, and ...

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Nitrogen Removal from Municipal Landfill Leachate

Nitrogen Removal from Municipal Landfill Leachate

... leachate, microbial culture, nitrification Introduction The landfill leachate is a highly variable and heterogenous mixture of high strength organic and inorganic contaminants including, among others, humic acids, ...

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Nitrifying and Denitrifying Microbial Communities in Centralized and Decentralized Biological Nitrogen Removing Wastewater Treatment Systems

Nitrifying and Denitrifying Microbial Communities in Centralized and Decentralized Biological Nitrogen Removing Wastewater Treatment Systems

... 4. Conclusions There were major differences in ammonia-oxidizing and nitrous oxide-reducing community composition and structure between centralized and decentralized BNR wastewater treatment systems. amoA richness and ...

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Effect of Dissolved Oxygen Concentrations on Specific Microbial Activities and Their Metabolic Products in Simultaneous Sulfur and Nitrogen Removal

Effect of Dissolved Oxygen Concentrations on Specific Microbial Activities and Their Metabolic Products in Simultaneous Sulfur and Nitrogen Removal

... and nitrogen compounds can be removed simultaneously in a single ...specific microbial activities and their metabolic ...simultaneous removal of sulfur and nitrogen compounds was ...sulfate ...

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Impacts of New England Oyster Aquaculture on Sediment Nitrogen Cycling: Implications for Nitrogen Removal and Retention

Impacts of New England Oyster Aquaculture on Sediment Nitrogen Cycling: Implications for Nitrogen Removal and Retention

... N biogeochemistry, I found that cores taken amongst oysters exhibited significantly higher rates of total denitrification compared to control cores in the summer and fall months when oysters are most active at ...

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Microbial characteristics, carbon and nitrogen content in cambisols and luvisols

Microbial characteristics, carbon and nitrogen content in cambisols and luvisols

... characteristics: microbial biomass, composition of microflora (ra- tio bacteria/fungi, microflora of the C-cycle and N-cycle), mineralization processes (CO 2 and NH 4 + release), and synthesising ...between ...

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