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Bioresour Technol

Title:		"Filling in sewage sludge biodrying gaps: Greenhouse gases, volatile organic compounds and odour emissions"
Author(s):		Gonzalez D; Guerra N; Colon J; Gabriel D; Ponsa S; Sanchez A;
Address:		"Composting Research Group (GICOM) Dept. of Chemical, Biological and Environmental Engineering, Universitat Autonoma de Barcelona, 08193-Bellaterra, Barcelona, Spain; Group of Biological Treatment of Liquid and Gaseous Effluents (GENOCOV) Dept. of Chemical, Biological and Environmental Engineering, Universitat Autonoma de Barcelona, 08193-Bellaterra, Barcelona, Spain. BETA Technology Centre: 'U Science Tech', University of Vic-Central University of Catalonia, 08500 Vic, Barcelona, Spain. Group of Biological Treatment of Liquid and Gaseous Effluents (GENOCOV) Dept. of Chemical, Biological and Environmental Engineering, Universitat Autonoma de Barcelona, 08193-Bellaterra, Barcelona, Spain. Composting Research Group (GICOM) Dept. of Chemical, Biological and Environmental Engineering, Universitat Autonoma de Barcelona, 08193-Bellaterra, Barcelona, Spain. Electronic address: antoni.sanchez@uab.cat"
Journal Title:		Bioresour Technol
Year:		2019
Volume:		20190723
Issue:
Page Number:		121857 -
DOI:		10.1016/j.biortech.2019.121857
ISSN/ISBN:		1873-2976 (Electronic) 0960-8524 (Linking)
Abstract:		"In the present work, a complete study of the sewage sludge (SS) biodrying technology was conducted at bench-scale, aiming at assessing its performance and providing a valuable insight into the different gaseous emission patterns found for greenhouse gases (GHG) and odorant pollutants. As process key parameters, temperature, specific airflow, dynamic respiration index, final moisture content and Lower Calorific Value (LCV) were evaluated. At the end of the biodrying, a product with a 35.9% moisture content and a LCV of 7.1?ª+MJ.kg(-1)product was obtained. GHGs emission factor was 28.22?ª+kgCO(2eq) per Mg of initial mass of dry matter in the SS (DM(0)-SS). During the biodrying process, maximum odour concentration measured was 3043?ª+ou.m(-3) and the estimated odour emission factor of the biological treatment was 3.10E?ª++?ª+07?ª+ou per Mg DM(0)-SS. Finally, VOCs were completely identified and quantified. The most abundant VOCs found in the biodrying gaseous emissions were terpenes, sulphur-compounds and ketones"
Keywords:		Greenhouse Gases/*chemistry *Odorants *Sewage Temperature Volatile Organic Compounds/*chemistry Biodrying Gaseous emission Greenhouse gases (GHG) Odour Sewage sludge;
Notes:		"MedlineGonzalez, Daniel Guerra, Nagore Colon, Joan Gabriel, David Ponsa, Sergio Sanchez, Antoni eng England 2019/08/05 Bioresour Technol. 2019 Nov; 291:121857. doi: 10.1016/j.biortech.2019.121857. Epub 2019 Jul 23"