Results 41 to 50 of about 2,928 (178)

Hydrological and microbial dynamics in an Arctic wastewater infiltration system

open access: yesVadose Zone Journal, Volume 25, Issue 2, March/April 2026.
Abstract Passive wastewater treatment systems are widely used in the Arctic, but studies addressing the vadose zone dynamics that influence the operation and performance of subsurface or soil‐based infiltration systems, such as rapid infiltration basins, are rare.
Débora Boratto   +6 more
wiley   +1 more source

Challenging protein purification from anammox bacteria

open access: yesInternational Journal of Biological Macromolecules, 2006
The anaerobic ammonium oxidation (anammox) is a fascinating microbial pathway contributing to the global biogeochemical nitrogen cycle. The anammox pathway of nitrogen conversion can only be elucidated after the responsible proteins have been purified and characterised.
Cirpus, I.E.Y.   +6 more
openaire   +4 more sources

Impact of ENSO on Nitrous Oxide Emissions in the Eastern Tropical Pacific

open access: yesGlobal Biogeochemical Cycles, Volume 40, Issue 3, March 2026.
Abstract Nitrous oxide (N2O ${\mathrm{N}}_{2}\mathrm{O}$) is a powerful greenhouse gas, with the ocean contributing ∼4.2 Tg N y−1 to global N2O ${\mathrm{N}}_{2}\mathrm{O}$ emissions. The Eastern Tropical Pacific (ETP) is a hotspot of N2O ${\mathrm{N}}_{2}\mathrm{O}$ emissions due to high N2O ${\mathrm{N}}_{2}\mathrm{O}$ production under low‐oxygen ...
Jana Härri   +4 more
wiley   +1 more source

Nitrogen isotope effects can be used to diagnose N transformations in wastewater anammox systems

open access: yesScientific Reports, 2021
Anaerobic ammonium oxidation (anammox) plays an important role in aquatic systems as a sink of bioavailable nitrogen (N), and in engineered processes by removing ammonium from wastewater.
Paul M. Magyar   +8 more
doaj   +1 more source

Oxygen tolerance and detoxification mechanisms of highly enriched planktonic anaerobic ammonium-oxidizing (anammox) bacteria

open access: yesISME Communications, 2023
Oxygen is a key regulatory factor of anaerobic ammonium oxidation (anammox). Although the inhibitory effect of oxygen is evident, a wide range of oxygen sensitivities of anammox bacteria have been reported so far, which makes it difficult to model the ...
Satoshi Okabe   +6 more
doaj   +1 more source

Synthesis of Global Soil‐Emitted N2O Isotopic Signatures: Geoclimatic Patterns and Influential Factors

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Nitrous oxide (N2O) is a potent greenhouse gas and major driver of stratospheric ozone depletion. Isotopic data constrain bottom‐up models, yet global natural‐abundance patterns remain poorly resolved. We compiled a global database of in situ soil‐emitted N2O isotopes from chamber‐ or probe‐based studies to examine the spatiotemporal ...
Tianchen Li   +3 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

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

Genome Analysis Reveals Diversity and Functional Potential of Novel Janthinobacterium Species From Subarctic Soils

open access: yesMicrobiologyOpen, Volume 15, Issue 1, February 2026.
The Pseudomonadota are abundant and diverse members of high‐latitude soils. Here, we describe two novel species, Janthinobacterium silvisoli and Janthinobacterium saanense, of the order Burkholderiales, isolated from tundra heath and northern boreal forest soils.
Anil Kumar   +3 more
wiley   +1 more source

Practical Indices for Minimizing External Carbon Demand in Mainstream ANAMMOX: A Sensitivity‐ and Regression‐Based Approach

open access: yesWater Environment Research, Volume 98, Issue 2, February 2026.
This study quantitatively assessed the external carbon demand of the mainstream ANAMMOX process in comparison with A2O and PD/A processes. The results demonstrated that mainstream ANAMMOX reduced external carbon requirements by up to 72.2% (vs. A2O) and 41.2% (vs. PD/A).
Sungryul Kim, Kyungik Gil
wiley   +1 more source

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