Estuarine Nitrifiers: New Players, Patterns and Processes [PDF]
, 2010 Ever since the first descriptions of ammonia-oxidizing Bacteria by Winogradsky in the late 1800s, the metabolic capability of aerobic ammonia oxidation has been restricted to a phylogenetically narrow group of bacteria.
Bernhard, Anne E, Bollmann, Annette
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Frontiers in Environmental Science, 2021 Fresh human urine, after it is alkalized to prevent the enzymatic hydrolysis of urea, can be dehydrated to reduce its volume and to produce a solid fertilizer. In this study, we investigated the suitability of MgO to alkalize and dehydrate urine.
Prithvi Simha +3 more
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Ammonia toxicity: from head to toe? [PDF]
, 2016 Ammonia is diffused and transported across all plasma membranes. This entails that hyperammonemia leads to an increase in ammonia in all organs and tissues.
Dasarathy, Srinivasan +6 more
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Ammonia removal in anaerobic digestion by biogas stripping: an evaluation of process alternatives using a first order rate model based on experimental findings [PDF]
, 2011 The feasibility of biogas stripping to remove ammonia in the anaerobic digestion of source segregated food waste was investigated. It was found in batch experiments that ammonia could be removed from digestate and that the removal followed 1st order ...
Banks, C.J. +3 more
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Reactive Structures of Ammonia MILD Combustion in Diffusion Ignition Processes
Frontiers in Energy Research, 2021 Reactive structures have been analyzed, when ammonia is used as a fuel, in a steady 1D counterflow diffusion flame layer, mimicking diffusion ignition processes.
G. Sorrentino +5 more
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Frontiers in Microbiology, 2021 Small urban streams discharging in the proximity of bathing waters may significantly contribute to the deterioration of water quality, yet their impact may be overlooked.
Liam J. Reynolds +10 more
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Recent progress towards the electrosynthesis of ammonia from sustainable resources [PDF]
, 2017 Ammonia (NH3) is a key commodity chemical of vital importance for fertilisers. It is made on an industrial scale via the Haber Bosch process, which requires significant infrastructure to be in place such that ammonia is generally made in large ...
Shipman, Michael A., Symes, Mark D.
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A study concerning the pretreatment of CNTs and its influence on the performance of NIB/CNTs amorphous catalyst [PDF]
Journal of the Serbian Chemical Society, 2006 As prepared carbon nanotubes were pretreated with nitric acid (CNTs-HNO3) or ammonia (CNTs-NH3). Fourier transform infrared spectroscopy (FTIR) measurements showed that the surface of the nanotubes was functionalized with carboxylic and hydroxyl ...
Hu-Yuan Chang +3 more
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Hot Ammonia around Young O-type Stars. II. JVLA imaging of highly-excited metastable ammonia masers in W51-North [PDF]
A&A 573, A109 (2015), 2014 We have used the JVLA at the 1 cm band to map five highly-excited metastable inversion transitions of ammonia, (J,K)=(6,6), (7,7), (9,9), (10,10), and (13,13), in W51 IRS2 with ~0.2 angular resolution. We present detections of both thermal (extended) ammonia emission in the five inversion lines, with rotational states ranging in energy from about 400 ...
arxiv +1 more source
Evaluation of flamelet-based models for liquid ammonia combustion in a temporally evolving mixing layer [PDF]
, 2023 Liquid ammonia combustion can be enhanced by co-firing with small molecular fuels such as methane, and liquid ammonia will undergo flash evaporation due to its relatively low saturation pressure. These characteristics, involving the presence of multiple fuel streams, a rapid phase change process, and strong heat loss, pose challenges for flamelet ...
arxiv +1 more source