Dynamic respiration index as a descriptor of the biological stability of organic wastes

Journal of Environmental Quality
Fabrizio AdaniFulvia Tambone

Abstract

Analytical methods applicable to different organic wastes are needed to establish the extent to which readily biodegradable organic matter has decomposed (i.e., biological stability). The objective of this study was to test a new respirometric method for biological stability determination of organic wastes. Dynamic respiration index (DRI) measurements were performed on 16 organic wastes of different origin, composition, and biological stability degree to validate the test method and result expression, and to propose biological stability limits. In addition, theoretical DRI trends were obtained by using a mathematical model. Each test lasted 96 h in a 148-L-capacity respirometer apparatus, and DRI was monitored every hour. The biological stability was expressed as both single and cumulative DRI values. Results obtained indicated that DRI described biological stability in relation to waste typology and age well, revealing lower-stability waste characterized by a well-pronounced DRI profile (a marked peak was evident) that became practically flat for samples with higher biological stability. Fitting indices showed good model prediction compared with the experimental data, indicating that the method was able to reproduce the aerobi...Continue Reading

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Citations

May 3, 2012·Waste Management·Raffaello CossuAnnalisa Sandon
Aug 9, 2011·Chemosphere·Belén PuyueloAntoni Sánchez
Sep 29, 2011·Journal of Biotechnology·Alessandra Bonoli, Alice Dall'Ara
Oct 5, 2010·Bioresource Technology·Raquel BarrenaAntoni Sánchez
Sep 29, 2009·Bioresource Technology·Barbara ScagliaFabrizio Adani
Apr 9, 2008·Waste Management·Adani FabrizioPierluigi Genevini
Aug 11, 2007·Chemosphere·María Gómez-BrandónJorge Domínguez
Apr 22, 2016·Environmental Monitoring and Assessment·Alexandros EvangelouDimitrios Komilis
Dec 17, 2011·Bioresource Technology·Michele PognaniAntoni Sánchez
Apr 19, 2011·Bioresource Technology·José VillaseñorCecilia Mabel Puchalski
Mar 8, 2014·Waste Management·Wei HanSteven Pratt
Apr 19, 2016·Environmental Technology·Micaela A R SoaresRosa Quinta-Ferreira
Jun 25, 2014·Environmental Technology·M C GutiérrezA F Chica
Nov 30, 2016·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Thouraya ChantouGuy Matejka
Jul 12, 2012·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Francesco AgostiniRodrigo Navia
Jun 25, 2008·Journal of Environmental Quality·Fabrizio Adani, M Spagnol
Feb 24, 2010·Journal of Environmental Quality·Sergio PonsáAntoni Sánchez
Dec 7, 2010·Journal of Environmental Monitoring : JEM·Ena SmidtJohannes Tintner

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