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Characterization of atmospheric ammonia emissions from swine waste storage and treatment lagoons
 

Summary: Characterization of atmospheric ammonia emissions
from swine waste storage and treatment lagoons
Viney P. Aneja, J. P. Chauhan,1 and J. T. Walker2
Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh
Abstract. Fluxes of atmospheric ammonia-nitrogen (NH3-N, where NH3-N
(14/17)NH3) from an anaerobic 2.5 ha (1 ha 10,000 m2
) commercial hog waste
storage lagoon were measured during the summer of 1997 through the spring of 1998 in
order to study the seasonal variability in emissions of NH3-N and its relationship to lagoon
physicochemical properties. Ammonia-nitrogen fluxes were measured during each season
(summer, fall, winter, and spring) using a dynamic flow through chamber system.
Measured lagoon physicochemical parameters included surface lagoon temperature (T C,
15 cm below surface), lagoon pH, and Total Kjeldahl Nitrogen (TKN). The pH and
TKN of the surface lagoon water ranged from 7 to 8 pH units, and 500 to 750 mg N L 1
,
respectively. The largest fluxes were observed during the summer (August 1997) (mean
NH3-N flux 4017 987 g N m 2
min 1
). Fluxes decreased through the fall
(December 1997) months (844 401 g N m 2

  

Source: Aneja, Viney P. - Department of Marine, Earth and Atmospheric Sciences, North Carolina State University

 

Collections: Environmental Sciences and Ecology; Geosciences