Read Time: 20 mins
Visite: 802

   Determining the emission impact of area sources (biofilters, wastewater tanks) on air quality and the environment by classic measurement techniques (i.e. static hood sampling), is currently lacking in pertaining uniform and representative emission data by being restricted in sampling area, time and safety. This creates an extra hindrance when emission rates from such sources need to be determined by the fluxwindow method, which implies measuring emission concentrations up- and downwind along different horizontal and vertical profiles of the area source.

   In an effort to improve on this matter, the possibility of using a drone equipped with an emission detection laboratory (OLFASCAN Flying Lab) to quantify emission concentrations and rates via the fluxwindow method from a sludge buffer tank was investigated. The OLFASCAN Flying Lab is equipped with several electrochemical sensors for performing air quality measurements and was attached to a DJI Matrice600 PRO RTK drone.

Read Time: 18 mins
Visite: 14228

   In industrialized cities, there are many possible sources of odorous compounds, such as steel and pelletizing industries, wastewater treatment plants, landfills, and harbors. For most of these sources, limited data is available on odours emissions in inventories. To estimate odorous VOCs in gaseous emissions from industries it is necessary to identify which VOCs are emitted and are odorous.

   Although reasonably simple, there are few papers addressing this issue. Thus, this study aimed to categorize chemically the VOCs and TRS emissions from major activities in an industrialized urban area of Brazil, crossing references with U.S. EPA - AP 42 documents, SPECIATE 4.5 database, and literature available.

D. F. Monticelli1*, B. Furieri1, V. F. Lavor1, E. V. Goulart1, J. M. Santos1, N. C. Reis Jr1, E. S. Galvão1, E. Lopes3, M. M. Melo2

1 Universidade Federal do Espírito Santo, Goiabeiras, Vitória, Brazil
2 Instituto Federal do Espírito Santo, Guarapari, Aeroporto, Guarapari, Brazil
3 ArcelorMittal Tubarão, Polo Industrial, Serra, Brazil
Read Time: 4 mins
Visite: 13145

   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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