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Author(s): S. Shiba & Y. Hirata
Abstract:
of ambient ammonia on acid rain
formation caused by sulphur dioxide
S.
Shiba & Y.
Hirata
Department of Chemical Engineering, Osaka University,
Machikaneyama, Toyonaka 560, Japan
ABSTRACT
In order to investigate the effect of the ambient ammonia (NMg))
on the non-steady characteristics of the rain drop acidification
by washout of sulphur dioxide (SOz(g)), a mathematical model for
the rain acidification has been built.
With this model the
numerical simulation of the acid rain formation has been carried
out by utilizing the finite element method.
The simulation
shows that the concentration of hydrogen ion in the rain drop
decreases remarkably with increase of the ambient ammonia.
That is, the ambient ammonia can neutralize the rain acidity.
It, however, has been also disclosed that the total amount of
the sulphur compound dissolved in the rain is increased with
increase of the coexistent ambient ammonia.
1.
INTR...
Pages: 10
Size: 566 kb
Paper DOI: 10.2495/ENV940071
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