AIMS Microbiology, 2020 Removal of nitrogen from wastewaters (WW) represents a global problem. The low nitrification rate during WW treatment is often caused by ecotoxicity. This problem is attributed mostly to the industrial WW.
Mārtiņš Kalniņš +6 more
doaj +1 more source
Archaea produce lower yields of N2O than bacteria during aerobic ammonia oxidation in soil [PDF]
, 2016 Acknowledgments The authors are members of the Nitrous Oxide Research Alliance (NORA), a Marie Skłodowska-Curie ITN and research project under the EU's seventh framework program (FP7). GN is funded by the AXA Research Fund.
Hink, Linda +2 more
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Microbes as engines of ecosystem function : When does community structure enhance predictions of ecosystem processes? [PDF]
, 2016 FUNDING This work was supported by NSF grant DEB-1221215 to DN, as well as grants supporting the generation of our datasets as acknowledged in their original publications and in Supplementary Table S1. ACKNOWLEDGMENT We thank the USGS Powell Center ‘Next
Alessandra eLagomarsino +52 more
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Global Biogeochemical Cycles, 2018 The ocean is estimated to contribute up to ~20% of global fluxes of atmospheric nitrous oxide (N2O), an important greenhouse gas and ozone depletion agent. Marine oxygen minimum zones contribute disproportionately to this flux.
Q. Ji +4 more
semanticscholar +1 more source
Evidence for suboxic nitrification in recent marine sediments [PDF]
, 2002 The classical scheme of biogeochemical zones (BGZ) is known to be an oversimplification of the microbial processes that occur in organic-rich marine sediments.
Davies, I.M. +6 more
core +2 more sources
Modelling N2O dynamics of activated sludge biomass under nitrifying and denitrifying conditions: pathway contributions and uncertainty analysis [PDF]
arXiv, 2018 Nitrous oxide (N2O) is a potent greenhouse gas emitted during biological wastewater treatment. A pseudo-mechanistic model describing three biological pathways for nitric oxide (NO) and N2O production was calibrated for mixed culture biomass from an activated sludge process using laboratory-scale experiments.
arxiv
Comparison of Partial and Complete Nitrification in SBR System for Use in Side Stream Processes [PDF]
آب و فاضلاب, 2012 Use of low-cost biological methods for ammonia removal as partial nitrification has been attracted by many environmental engineering researchers in recent years.In this study the removal of ammonia in high concentration sewage based on both complete and ...
Ali Dehnoei +3 more
doaj
Nitrogen removal in marine environments: recent findings and future research challenges [PDF]
, 2005 Respiratory reduction of nitrate (denitrification) is recognized as the most important process converting biologically available (fixed) nitrogen to N2. In current N cycle models, a major proportion of global marine denitrification (50–70%) is assumed to
Aller, Robert Curwood +7 more
core +3 more sources
Experimental study on nitrification in a submerged aerated biofilter [PDF]
, 2004 The aim of the present work was to evaluate the performance of a semi-pilot scale BAF in order to obtain a highly polished effluent in terms of removal of organic matter, suspended solids and ammonia and to observe the influence of temperature, pH and ...
Chiavola, Agostina +3 more
core +2 more sources
NITROGEN CYCLING IN A FOREST STREAM DETERMINED BY A 15N TRACER ADDITION [PDF]
, 2000 Nitrogen uptake and cycling was examined using a six‐week tracer addition of 15N‐labeled ammonium in early spring in Walker Branch, a first‐order deciduous forest stream in eastern Tennessee.
Meyer, Judy L. +6 more
core +1 more source