Results 41 to 50 of about 2,928 (178)
Hydrological and microbial dynamics in an Arctic wastewater infiltration system
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
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
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
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 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
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]
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
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
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
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

