The draft of the new Standard EN 13725 has been sent for enquiry

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cen 13724 enquiry   The 17th of December, the final draft of the revision process of the Standard EN 13725 on Dynamic Olfactometry was sent to the CEN secretariat in order to prepare the Enquiry document. The Working Group 2 of the Technical Comittee 264 of the European Committee for Standardization (CEN) had the task of reviewing the existing Standard and it looks like the final draft is ready. 

   This reviewed European Standard has been developed taking into account 284 working documents and 14 meetings of a group of over 20 people. The first meeting took place in Barcelona in November 2012 and after 6 years of discussions, the draft is here. The process of enquiry is a lenghy process that will take a few months, but we expect that the reviewed EN 13725 will be available along next 2019.

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).

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

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imagen ale1   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 (*).
2) Universitat de Vic – Universitat Central de Catalunya, Centre Tecnològic BETA (U Science Tech), 08500 Vic, Barcelona.

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