volatilization


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volatilization

[‚väl·əd·əl·ə′zā·shən]
(thermodynamics)
The conversion of a chemical substance from a liquid or solid state to a gaseous or vapor state by the application of heat, by reducing pressure, or by a combination of these processes. Also known as vaporization.
References in periodicals archive ?
Lara Cabezas WAR, Korndorfer GH, Motta SA (1997a) N[H.sub.3]-N volatilization in corn crop: II- evaluation of solid and fluid sources under no-tillage and conventional systems.
Based on the previously said, this work aims at evaluating the losses of N to the atmosphere by volatilization of ammonia (N[H.sub.3]) in pig slurry treatment systems, with and without the presence of aquatic plants, as well as the concentration of ammonium (N[H.sub.4.sup.+]) present in pig slurry, with the hypothesis that aquatic plants are able to reduce the concentration of N[H.sub.4.sup.+] present in swine manures, as well as to reduce losses of N by N[H.sub.3] volatilization.
Uncertainty in model results originates from estimating the volatilization factor for various appliances and from subsequent transfer of contaminant to adjacent compartments.
Given the above, this study aimed to evaluate N losses through N[H.sub.3] volatilization and quantify upward and downward N[O.sup.-.sub.3] flows in Latosol cultivated with coffee (Coffea arabica L.), fertilized with conventional urea and NBPT-treated urea.
These soluble fractions were acidified to pH 2 to 3 to avoid possible loss through ammonia volatilization, and then evaporated to dryness.
Therefore, nocturnal aeration is capable to significantly reduce the concentrations of [H.sub.2]S in water by volatilization.
It focus on researching the effect of pyrolysis char in tar cracking and analyzing the mechanism in the cases of different pyrolysis temperature, heating rate, the volatilization of pyrolysis char, particle size and the modified pyrolysis char.
In addition, biochar is also known to reduce nitrogen loss from the soil in terms of [N.sub.2]O emission and N[H.sub.3] volatilization [35, 36].
However, the total ammonia volatilization was not increased when the proportion of NBPT was more than 0.5%.
Keywords: Nitrogen content, manures, volatilization, open lots.
However, control samples exposed in open containers also decreased BOD levels, likely due to volatilization of volatile contaminants.