The Jagüel Wastewater Treatment Plant in Punta del Este, Uruguay, underwent an odor control improvement plan ahead of a major renovation.

    A study by Ambiente et Odora measured H₂S emissions, modeled odor dispersion with CALPUFF, and identified key sources. Corrective actions included improved ventilation in centrifuge rooms, replacement of biofilters with granular activated carbon filters, and dosing ferric chloride into the slurry. These measures effectively reduced odors during the summer season, with no reported complaints.

A. Irigoyen*¹, D. Berger¹, A. Anton², & C. Diaz²

¹CIEMSA

²Ambiente et Odora

    The pulp industry faces challenges in balancing biological wastewater treatment with effective odor control.

   SciCorp’s micronutrient technology, based on plant extracts, selectively stimulates specific bacteria within biological sludge to significantly reduce emissions of malodorous gases such as hydrogen sulfide and mercaptans. Additionally, this technology enhances the biological treatment performance by increasing load capacity, lowering phosphorus concentration in the treated effluent, and reducing biosolid production, thereby optimizing overall wastewater treatment plant efficiency.

D. Maat¹, J. Soza² & J. Nuñez³