Hydrogen sulphide emissions and dispersion modelling from a wastewater reservoir using flux chamber measurements and AERMOD® simulations

C. Moreno-Silva, D. C. Calvo, N. Torres, L. Ayala, M. Gaitán, L. González, P. Rincón, M. Rodríguez Susa

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Odours associated with hydrogen sulphide (H2S) have been a concern in the municipality of Sibaté (Colombia) over the last decades. With the aim of determining the odour impact of Muña's reservoir, different H2S emission sources were evaluated and simulated. H2S surface emission rates from Muña's reservoir were estimated using the Flux Chamber experimental method. Meteorological conditions and emission rates were then fed to the AERMOD® model to identify the contribution of Muña's reservoir on H2S concentration in Sibaté’s urban area. These results were compared and calibrated with real time H2S atmospheric concentration data. The average H2S emission rate was 1,886 μg/(min·m2), which primarily affects the municipality when wind direction is towards the south. The results of this study demonstrated the applicability of the AERMOD® model and flux chamber measurements in predicting H2S behaviour in the Sibaté region.

Original languageEnglish (US)
Article number117263
JournalAtmospheric Environment
Volume224
DOIs
StatePublished - Mar 1 2020
Externally publishedYes

Keywords

  • AERMOD®
  • Dispersion
  • Flux chamber
  • Hydrogen sulphide

ASJC Scopus subject areas

  • General Environmental Science
  • Atmospheric Science

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