Minimisation and Abatement of Odors by Physico-Chemical Treatments

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M Martin   Environmental pollution related to odour emission has become in the last years an important public concern. Closeness of odour-causing facilities such as wastewater treatment plants (WWTPs) to urban areas further aggravates the problem. Volatile sulphur compounds (VSC) are one of the main groups of odour causing compounds in WWTPs, especially in the sludge processing.

   Nowadays, there is a variety of options available for the effective treatment of odour causing compounds emission. However, there is a need to assess in depth the efficiency of these technologies applied to the same process. Thus, this work is focused on the evaluation of different physico-chemical techniques (chemical scrubbers, adsorption, advanced oxidation processes) in order to minimize or reduce the VSC from sludge processing in WWTPs.

Esther Vegaa, María Martinb*

a Laboratorio de Tecnologías Limpias. Universidad de la Santísima Concepción. Alonso de Ribera 2850, Concepción (Chile).
b Laboratori d’Enginyeria Química i Ambiental (LEQUIA). Campus Montilivi. 17003 Girona (Spain).

   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: Esther Vega, María Martin, 2017, Minimisation and Abatement of Odors by Physico-Chemical Treatments, IV International Conference of Odours and VOCs in the Environment, Valladolid, Spain, www.olores.org.

   Copyright: 2018 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: 978-84-697-7359-8

   Keyword: odors, wastewater, chemical conditioning, advanced oxidation processes, adsorption, activated carbon, sludge management.

 

Abstract

   Environmental pollution related to odour emission has become in the last years an important public concern. Closeness of odour-causing facilities such as wastewater treatment plants (WWTPs) to urban areas further aggravates the problem. Volatile sulphur compounds (VSC) are one of the main groups of odour causing compounds in WWTPs, especially in the sludge processing.

   Nowadays, there is a variety of options available for the effective treatment of odour causing compounds emission. However, there is a need to assess in depth the efficiency of these technologies applied to the same process. Thus, this work is focused on the evaluation of different physico-chemical techniques (chemical scrubbers, adsorption, advanced oxidation processes) in order to minimize or reduce the VSC from sludge processing in WWTPs.

   In a first stage, the study was focused on the research of sewage sludge conditioning process by the addition of different reagents. The results revealed that the good practice of this procedure could reduce an important cost and increase the efficiency of physico-chemical processes as chemical scrubber or adsorption at the end-of-pipe.

   An overview allows concluding that the combination of different techniques and actions during the process can successfully increase the minimization or the abatement of odour causing-compounds.

 

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Cyntia Izquierdo

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