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
Performance of silver carp (Hypophthalmicthys molitrix) dominated integrated post treatment system for purification of municipal waste water in a temperate climate
TL;DR: In this paper, the stabilization of municipal waste water by the combination of a UASB reactor and waste stabilization ponds is a low cost solution and could satisfy discharge standards with regards to physicochemical and biological parameters.
Journal ArticleDOI
Reduction of Escherichia coli, Salmonella Enteritidis and Campylobacter jejuni in poultry manure by rearing of Musca domestica fly larvae
TL;DR: It is shown that the decay in the numbers of E. coli, S. Enteritidis, and C. jejuni was faster in manure with rearing of fly larvae than in manure without larvae; an 8 log10 reduction of all three test bacteria was observed within four days in manureWith larvae; compared to manure with larvae where a 1 to 2 log10 was observed.
Journal ArticleDOI
Pathogen and indicator inactivation in source-separated human urine heated by the sun
TL;DR: Fluctuating temperatures in combination with ammonia gave faster inactivation of bacteria and Ascaris suum eggs than the same constant mean temperature.
Journal ArticleDOI
Effect of Tank Stocking Density on Larval Sunshine Bass Growth and Survival to the Fingerling Stage
TL;DR: This experiment determined the relationship between the stocking density of sunshine bass larvae in tanks and their survival rate and size at the time they were trained to accept commercial feeds.
Journal ArticleDOI
An evaluation of the influence of substrate on the response of juvenile freshwater mussels (fatmucket, Lampsilis siliquoidea) in acute water exposures to ammonia.
Jingling M. Miao,Jingling M. Miao,M. Christopher Barnhart,Eric L. Brunson,Douglas K. Hardesty,Christopher G. Ingersoll,Ning Wang +6 more
TL;DR: In this article, the authors evaluated the effect of ammonia toxicity on three-month-old juvenile mussels (Lampsilis siliquoidea) in four treatments (water-only, water-only with feeding, water and soil, and water and sand) using an exposure unit designed to maintain consistent pH and ammonia concentrations in overlying water and in pore water surrounding the substrates.
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.