The rendering sector that transforms the animal by-products into grease and protein flour is one of most problematic industry due to the odors generated by the activity process. For this reason, most of the plants are located in isolated areas far from population and even far from other industries. In this Case Study, the location very near a urban area, required the implementation of a solution.
R. Coelho 1* , M. Hänel 2 and G. Lacarra 3
1. Carpe Ambiente Ltda, Portugal, geral@carpe-ambiente.pt
2. KBA MetalPrint, Alemania, matthias.haenel@kba-metalprint.de
3. Delegación de Carpe Ambiente en España
Competing interests: The author has declared that no competing interests exist.
Academic editor: Carlos N Díaz.
Content quality: This paper has been peer reviewed by at least two reviewers. See scientific committee here
Citation: R. Coelho, M. Hänel and G. Lacarra, 2015, Odor elimination by regenerative thermal oxidation. Success case study in the rendering sector, III International Conference of Odours in the Environment, Bilbao, Spain, www.olores.org
Copyright: 2015 olores.org. Open Content Creative Commons license. It is allowed to download, reuse, reprint, modify, distribute, and/or copy articles in olores.org website, as long as the original authors and source are cited. No permission is required from the authors or the publishers.
ISBN: 978-84-608-2262-2.
Keyword: odors, elimination, thermal, oxidation, rendering, RTO
Abstract
The rendering sector that transforms the animal by-products into grease and protein flour is one of most problematic industry due to the odors generated by the activity process. For this reason, most of the plants are located in isolated areas far from population and even far from other industries. In this Case Study, the location very near a urban area, required the implementation of a solution that could bring a significant increase to the odour treatment of two plants (C1 and C3), in São João da Madeira, Portugal.
The project success has been the installation of a Regenerative Thermal Oxidation (RTO) system, fully integrated with the production processes and plants layouts, and also with the already existing air treating systems.
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In this article we make a comparative analysis of the performance of the AERMOD and SYMOS’97 dispersion models for simulating the dispersion of odorous compounds in the atmosphere. Although there are a large amount of air dispersion models in literature, there are few data bases that allow the assessment of results obtained by the dispersion simulation of odorous compounds.
A fundamental operation performing odor impact assessment is the analysis of meteorological data, particularly wind direction and speed. Such an analysis allows for example to evaluate the number of calms, which may give raise to high concentration values, and to spot possible errors in meteorological data before using them in an atmospheric dispersion models. Moreover, the determination of the prevailing wind direction allows to understand if possible sources are generally upwind of the potential receptors.
Abstract