scispace - formally typeset
Search or ask a question
Topic

Ammonia

About: Ammonia is a research topic. Over the lifetime, 16217 publications have been published within this topic receiving 271940 citations. The topic is also known as: NH3 & azane.


Papers
More filters
Journal ArticleDOI
TL;DR: The two-fold enhancement of nitrate removal by the urea-modified activated carbon in comparison with pristine and ammoxidated sample is in direct correlation with the development of surface basic groups.

88 citations

Journal ArticleDOI
TL;DR: In this paper, the synergistic effect of hydrogen peroxide and ammonia on lignin was analyzed using modern analytical techniques including elemental analysis, gel permeation chromatography (GPC), Fourier transform infrared (FT-IR), and two-dimensional heteronuclear single-quantum coherence nuclear magnetic resonance (2D-HSQC NMR) spectroscopy.

88 citations

Journal ArticleDOI
TL;DR: A dilution method for avian urine and modified existing analytical methods for ammonia, urea, uric acid and total nitrogen to permit determination of all these compounds on aliquots of the same urine sample consistent for four different dietary protein-water availability regimes.

88 citations

Patent
22 Sep 2003
TL;DR: In this paper, a new method for the removal of environmental compounds from gaseous streams, in particular, flue gas streams, is proposed, which involves first oxidizing some or all of the acid anhydrides contained in the gas stream such as sulfur dioxide (SO 2 ) and nitric oxide (NO) and nitrous oxide (N 2 O) to sulfur trioxide (SO 3 ) and nitrogen dioxide (NO 2 ).
Abstract: A new method for the removal of environmental compounds from gaseous streams, in particular, flue gas streams. The new method involves first oxidizing some or all of the acid anhydrides contained in the gas stream such as sulfur dioxide (SO 2 ) and nitric oxide (NO) and nitrous oxide (N 2 O) to sulfur trioxide (SO 3 ) and nitrogen dioxide (NO 2 ). The gas stream is subsequently treated with aqua ammonia or ammonium hydroxide which captures the compounds via chemical absorption through acid-base or neutralization reactions. The products of the reactions can be collected as slurries, dewatered, and dried for use as fertilizers, or once the slurries have been dewatered, used directly as fertilizers. The ammonium hydroxide can be regenerated and recycled for use via thermal decomposition of ammonium bicarbonate, one of the products formed. There are alternative embodiments which entail stoichiometric scrubbing of nitrogen oxides and sulfur oxides with subsequent separate scrubbing of carbon dioxide.

88 citations

Journal ArticleDOI
TL;DR: The electrochemical reduction of nitrate and nitrite in simulated low-level nuclear wastes containing 1.8 M NaNO(3)+0.55 M Na NO(2)+1.16 M NaOH was studied under galvanostatic polarization on tin and bismuth cathodes.

88 citations


Network Information
Related Topics (5)
Carbon
129.8K papers, 2.7M citations
86% related
Adsorption
226.4K papers, 5.9M citations
85% related
Aqueous solution
189.5K papers, 3.4M citations
84% related
Hydrogen
132.2K papers, 2.5M citations
83% related
Amino acid
124.9K papers, 4M citations
83% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20231,701
20223,035
2021425
2020443
2019496
2018511