Results 81 to 90 of about 7,521 (222)

Electroenzymatic Cascades for Nitrogen Upgrading: Beyond Ammonia Towards Value‐Added Nitrogen Chemicals

open access: yesChemCatChem, Volume 18, Issue 7, 14 April 2026.
This review maps how electroenzymatic cascades that couple nitrogen‐cycle enzymes with C─N bond forming auxilary enzymes, powered by direct electron transfer (DET) or mediated electron transfer (MET), can upgrade N2 and waste nitrogen streams into value‐added amines, amides, amino acids, and other nitrogen‐based chemicals.
Rohit G. Jadhav   +4 more
wiley   +1 more source

Microbial communities in anammox and nitrifying biofilms

open access: yes, 2017
Excess of nitrogen in water bodies causes eutrophication. One important source of nitrogen is the effluent from wastewater treatment plants (WWTPs). Nitrogen in wastewater is most commonly removed by nitrification-denitrification.
Suarez, Carolina
core   +1 more source

Diversity and spatial distribution of hydrazine oxidoreductase (hzo) gene in the oxygen minimum zone off Costa Rica. [PDF]

open access: yesPLoS ONE, 2013
Anaerobic ammonia oxidation (anammox) as an important nitrogen loss pathway has been reported in marine oxygen minimum zones (OMZs), but the community composition and spatial distribution of anammox bacteria in the eastern tropical North Pacific (ETNP ...
Liangliang Kong   +4 more
doaj   +1 more source

Impacts of Biostimulants on Nitrous Oxide Emissions and the Soil Microbiome

open access: yesJournal of Plant Nutrition and Soil Science, Volume 189, Issue 2, Page 216-229, April 2026.
Soil incubation experiment examining the influence of biostimulants on greenhouse gas emissions and the soil microbiome in fertilized soils. ABSTRACT Background Overapplication of nitrogenous fertilizer and enhanced microbial activity in agricultural soils are drivers of increasing greenhouse gas emissions.
Conor Blunt   +4 more
wiley   +1 more source

Effect of Internal Recycle Ratio on Nitrogen Removal Efficiency in a Three-stage ANAMMOX Process for Treating Reject Water

open access: yes대한환경공학회지, 2020
Objectives In order to improve the stability of the ANAMMOX process, a three-stage ANAMMOX process combined with denitritation/nitritation process was operated, and effect of internal recycle ratio on the nitrogen removal efficiency was investigated ...
Daehee Choi   +3 more
doaj   +1 more source

Molecular detection of Candidatus Scalindua pacifica and environmental responses of sediment anammox bacterial community in the Bohai Sea, China. [PDF]

open access: yesPLoS ONE, 2013
The Bohai Sea is a large semi-enclosed shallow water basin, which receives extensive river discharges of various terrestrial and anthropogenic materials such as sediments, nutrients and contaminants.
Hongyue Dang   +6 more
doaj   +1 more source

Seasonal nitrate drawdown transitions lake ecosystems from phosphorus to nitrogen deficiency in annual cycles

open access: yesLimnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract Phytoplankton biomass is often limited by nitrogen (N) and/or phosphorus (P). Quantifying the relative availability of N and P in an ecosystem is useful in indicating nutrient limitation status. In subtropical lakes, nitrate availability generally follows a seasonal pattern with maxima in the late winter/early spring and minima in late summer ...
Jasmine K. Stovall   +6 more
wiley   +1 more source

Evidence of Potential Anammox Activities from Rice Paddy Soils in Microaerobic and Anaerobic Conditions

open access: yesBiology
Anammox, a reaction in which microorganisms oxidize ammonia under anaerobic conditions, is used in the industry to remove ammonium from wastewater in an environmentally friendly manner.
Anamika Khanal   +7 more
doaj   +1 more source

Recirculated submarine groundwater discharge dominates nutrient inputs and enhances eutrophication risk in a coastal lagoon

open access: yesLimnology and Oceanography, Volume 71, Issue 4, April 2026.
Abstract Submarine groundwater discharge (SGD) is a widely recognized pathway for nutrient transport to coastal systems. Prior studies overlook the unique biogeochemical signatures of different SGD pathways, neglecting their differences in biogeochemical transformations and spatiotemporal factors.
Júlia Rodriguez‐Puig   +14 more
wiley   +1 more source

Development of anammox and AOB biofilm on honeycomb plastic media for application in partial nitritation-anammox reactor [PDF]

open access: yesE3S Web of Conferences
The purpose of this research was to cultivate anammox and ammonium-oxidizing bacteria (AOB) and analyze the performance of nitrogen removal using honeycomb plastic media in two reactors intended for use in a single partial nitrite-anammox reactor ...
Zulkarnaini Zulkarnaini   +7 more
doaj   +1 more source

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