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Minimisation and Abatement of Odors by Physico-Chemical Treatments

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).

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Gaseous emissions in Biological Waste Treatment Processes: Composting Plants, WWTP and Ecoparks

   Nowadays, the increase of waste treatment plants based on biological treatment processes involve different kinds of gaseous emissions, from those known as Greenhouse Gases (GHG) to organic and inorganic volatile compounds. The latter are also related to the odorous impact produced by a determined process or installation.

   The present work is part of a project in which different types of waste treatment plants, either solid wastes or urban wastewater, are evaluated with the aim of relating their characteristic gaseous emissions –total volatile organic compounds (VOCs), NH3, H2S and GHG– with each kind of process.

D. González1*, J. Colón2, D. Gabriel1, A. Sánchez1

1) Universitat Autònoma de Barcelona, Departament d’Enginyeria Química, Biològica i Ambiental, 08193 Bellaterra, Barcelona (*daniel.gonzalez.ale@uab.cat).
2) Universitat de Vic – Universitat Central de Catalunya, Centre Tecnològic BETA (U Science Tech), 08500 Vic, Barcelona.

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CO2 capture through a consortium of isolated microalgae of landfill leachate with column photobiorreators

   Biogas is a very interesting source of renewable energy. However, its desulfurization is necessary, and sometimes an adjustment of the methane (CH4) concentration (upgrading), by reducing the carbon dioxide (CO2) concentration. The removal or capture of CO2 can be carried out by biological methods, with microalgae being the most used microorganisms, given their high CO2 assimilation capacity.

   However, high CO2 concentrations inhibit the microalgae growth, which makes it difficult to apply. In the present study, a microalgae consortium of leachate from landfills has been isolated to study the effect of CO2 concentration on its growth. Two bubble column photobioreactors were built with an inner diameter of 100 mm and a working volume of 8 L.

Saldarriaga, L. F1,2, Ramírez, M.1, Almenglo, F., Gómez J.M, Cantero, D1

1 Departamento de Ingeniería Química y Tecnología de Alimento. Facultad de Ciencias. Universidad de Cádiz. Instituto Universitario de Investigación Vitivinícola y Agroalimentario (IVAGRO). Av. República Saharaui S/N. 11510 Puerto Real, Cádiz, Spain
2 Departamento de Química. Universidad del Atlántico. Km 8. Vía Puerto Colombia, Colombia.
* martin.ramirez@uca.es

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Subcategories

Instrumental Odour Monitoring (O-sensors)

Psychometry

Field Olfactometry

Field Inspections

Physico-Chemical analysis

Dynamic Olfactometry

Odour dispersion

Odour abatement

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