https://doi.org/10.15255/KUI.2020.026
Published: Kem. Ind. 69 (13) (2020) P65–P74
Paper reference number: KUI-26/2020
Paper type: Conference paper
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Levels of Hydrogen Sulphide, Ammonia, and Mercaptans in the Air of the Central Wastewater Treatment Plant Zagreb Area

V. Gluščić, M. Šilović Hujić, I. Bešlić, S. Davila and G. Pehnec

Abstract

Since 2004, continuous measurements of hydrogen sulphide (H2S), ammonia (NH3), and mercaptan (R−SH) levels in air have been monitored in the area of the Central wastewater treatment plant Zagreb (CUPOVZ). At two measuring sites within the CUPOVZ area, Biology-north and Biology-south, for a month in every season in 2017, twenty-four hour samples of H₂S, NH₃, and R−SH were collected. Measured concentrations of gaseous pollutants showed statistically significant seasonal variations (p < 0.05) at both measuring stations. For the overall period, high positive correlations were found between all pollutants and temperature, and negative with pressure.

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Keywords

wastewater treatment plant, measuring site, immissions, limit value, seasonal variations, correlations