Monitoring the biofiltration of α-pinene vapours through municipal solid waste and pruning residues composts using an e-nose

on .

Principal Components Analysis (PCA) carried out using the data sets obtained with a commercial electronic nose after 223 days and structure of α-pinene. R. López1, I. Cabeza1, J. R. Lock-Wah-Hoon1, I. Giráldez 2, M. Ruíz3, M. J. Díaz3

1 Instituto de Recursos Naturales y Agrobiología de Sevilla-CSIC, Avda. Reina Mercedes 10, 41012 Sevilla. .

2 Departamento de Química y Ciencia de los Materiales, Facultad de Ciencias Experimentales, Univ. de Huelva, Campus Universitario El Carmen, Avenida de las Fuerzas Armadas, 21071-Huelva.

3 Departamento de Ingeniería Química, Química Física y Química Orgánica, Facultad de Ciencias Experimentales, Univ. de Huelva, Campus Universitario El Carmen, Avenida de las Fuerzas Armadas, 21071-Huelva.

Keywords: Volatile organic compounds, terpenoid

Abstract

The volatile organic compound (VOC) α-pinene, one of the most abundant component emitted during the composting of urban waste (MSW) and pruning waste (P), was treated in biofilters filled up with a MSW compost or a MSW+P compost. A photoionization detector was used to carry out the monitoring of the biofilters efficiency but GC-MS and an electronic nose were also used for the process study. Moisture content in biofilters below 66% (dw, MSW) or 51% (dw, MSWP) made efficiency decrease to less than 90%. GC-MS spectra indicated no intermediate products from α-pinene degradation appeared but e-nose data indicates a “smell” corresponding to S-compounds produced in MSW biofilter. These results show that electronic noses could become a powerful tool for the monitoring of VOC compounds in biofiltering and composting processes.

Managing the impact of odour emissions from livestock activities

on .

Estel·la Pagans1, **, Rita Domíngues1, Anton Philip van Harreveld 1

1 Odournet SL. Crta Esglesia 60B. 08017 Barcelona.

* Contact author:

    Summary

   Odour emissions from intensive livestock activities are currently one of the biggest problems in areas with a high density of livestock compared with the human population density. At the same time, odour emissions make expanding these units of production difficult, and if they are to be maintained or even increased, it will be essential to reduce these emissions. In this context, it is essential to use the best available techniques (BAT), primarily to prevent and reduce the generation of odours through strategies integrated into the process, such as best practices and the drafting and implementation of an Odour Management Plan (OMP). In case of continued discomfort caused by odours, the application of end-of-pipe technology treatment will be necessary. This article presents the most common methodology to assess the impacts of odours from a livestock operation as well as the main strategies and treatment systems aimed at reducing odour emissions and their impact.

ONOSE-8 ® a New Stationary Dynamic Dilution Olfactometer made in Quebec

on .

O-nose8    The market of olfactometers is rapidly growing and changing. As we saw in December, a new portable olfactometer named Scentroid SC302 came out and fresh from the bakery. That was a little and nice surprise for all of us and a shot for the olfactometer market dominated at this time by the German makers of the ECOMA TO8. This time, and just a few months after the show up of the Scentroid SC302, we have a new piece of engineering coming to the stage: The Onose-8 ® dynamic dilution olfactometer.

   The Onose-8 ® dynamic dilution olfactometer is the result of many years of research and development by the engineers and scientists from a consulting firm based in Quebec. The Onose-8 ® olfactometer is designed according with the following standards:

  • ASTM 679
  • EN 13725
  • VDI 3881 and 3882

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