Journal ArticleDOI
Aqueous Ammonia Equilibrium Calculations: Effect of pH and Temperature
Reads0
Chats0
TLDR
A critical evaluation of the literature data on the ammonia–water equilibrium system has been carried out and results of calculations of values of pKa at different temperatures and of percent of NH3 in aqueous ammonia solutions of zero salinity as a function of pH and temperature are presented.Abstract:
The toxicity of ammonia to fishes has been attributed to the un-ionized ammonia chemical species present in aqueous solution Because the percent of total ammonia present as un-ionized ammonia (NH3) is so dependent upon pH and temperature, an exact understanding of the aqueous ammonia equilibrium is important for toxicity studies A critical evaluation of the literature data on the ammonia–water equilibrium system has been carried out Results of calculations of values of pKa at different temperatures and of percent of NH3 in aqueous ammonia solutions of zero salinity as a function of pH and temperature are presentedread more
Citations
More filters
Journal ArticleDOI
Antioxidant, enzymatic and hematological responses of common carp (Cyprinus carpio) fed with myrcene- or menthol-supplemented diets and exposed to ambient ammonia
TL;DR: Investigation of the effects of dietary myrcene and menthol administration on common carp health in response to ammonia toxicity found effects seem to be related to the compounds antioxidant effects, which mitigated ammonia-induced tissue damage and anemia.
Journal ArticleDOI
Oleaginous yeast Cryptococcus curvatus for biofuel production: Ammonia's effect
TL;DR: The study on mechanism of ammonia inhibition suggested it might include an inhibition on the acyl-CoA synthetase activity, since a 61% decrease in the enzyme activity was found when 3140 g m −3 of ammonia was added.
Journal ArticleDOI
The impacts of aquacultured oysters, Crassostrea virginica (Gmelin, 1791) on water column nitrogen and sedimentation: results of a mesocosm study
TL;DR: Based on rates of ammonia excretion by oysters and observed steady states of ammonia and other forms of inorganic nitrogen in mesocosm tanks, it can be hypothesized that oysters affected phytoplankton species composition and increased rates of sedimentation.
Journal ArticleDOI
Anaerobic co-digestion of microalgal biomass and wheat straw with and without thermo-alkaline pretreatment.
TL;DR: The anaerobic co-digestion of microalgal biomass grown in wastewater and wheat straw was successful even without applying a thermo-alkaline pretreatment, and the methane yield was increased by 77% with the co-Digestion as compared to microalgae mono-digested, while the pretreatment only increased the methaneield by 15% compared to the untreated mixture.
References
More filters
Journal ArticleDOI
Acidic dissociation constant of ammonium ion at 0 to 50 C, and the base strength of ammonia
Journal ArticleDOI
The Percent Un-Ionized Ammonia in Aqueous Ammonia Solutions at Different pH Levels and Temperatures
TL;DR: In this article, it was shown that the un-ionized ammonia molecule and not the ammonium ion is the form of the toxicant harmful to fish, and the amount of unionised ammonia in the water was quantified.