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.
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TL;DR: The continuous microwave system showed the potential as an effective method for ammonia nitrogen removal in coke-plant water treatment and is proposed that this process is suitable for the treatment of toxic wastewater containing high concentrations of ammonia nitrogen.
124 citations
TL;DR: In this article, the authors investigated the extraction of molybdenum and vanadium from ammonia leaching residue (main chemical composition: 2.05% Mo, 0.42% V, 65.6% Al2O3 and 10.7% SiO2) by roasting the residue with soda carbonate.
124 citations
124 citations
TL;DR: Cell growth was inhibited by 5 mM ammonia, but the cells were able to adapt to ammonia concentrations as high as 8.2 mM, and over 90% of the estimated ATP production was due to glycolysis and a large fraction of glutamines converted to lactate.
Abstract: Ammonia and lactate are the major byproducts from mammalian cells grown in medium containing glutamine and glucose. Both can be toxic to cells, and may limit the productivity of commercial bioreactors. The transient and steady-state responses of hybridoma growth and metabolism to lactate and ammonia pulse and step changes in continuous suspension culture have been examined. No inhibition was observed at 40 mM lactate. Cell growth was inhibited by 5 mM ammonia, but the cells were able to adapt to ammonia concentrations as high as 8.2 mM. Ammonia production decreased and alanine production increased in response to higher ammonia concentrations. Increased ammonia concentrations also inhibited glutamine and oxygen consumption. The specific oxygen consumption rate decreased by an order of magnitude after an ammonia pulse to 18 mM. Under these conditions, over 90% of the estimated ATP production was due to glycolysis and a large fraction of glutamine was converted to lactate.
124 citations
TL;DR: In this paper, a new reagent is proposed whose concentrations of peroxodisulphate and sodium hydroxide are founded on the stoichiometric relations at the autodecomposition of the peroxidisulate; the proper pH of 8.0 for the reduction is achieved by addition of the calculated amount of Tris(hydroximethyl)aminomethane hydrochloride.
124 citations