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

1SciCorp International, Mississauga ON, Canada.
2CMPC Pulp Maderas, Los Ángeles, Chile
3SciCorp International, Los Ángeles, Chile.

   A hybrid material of activated carbon and MOFs is proposed for the adsorption of trimethylamine (TMA) emitted by the fishing industry, achieving complete removal in the aqueous phase.

   Efforts focus on optimizing its surface area and selectivity for effective application under real conditions, contributing to environmental impact mitigation and improving the quality of life of nearby communities.

P. Méndez, R. Ahumada, V. Novoa & G. Salazar

 University of the Bío-Bío, Avenida Collao 1201, Concepción, Chile.
* pamendez@ubiobio.cl

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