Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor

The objective of the current work is to study the impact of the operational parameters' variation (HRT, OLR and T) on biomethane productivity in a periodic anaerobic baffled reactor (PABR). The feedstock used was a biomass product named food residue biomass (FORBI), which is dried and shredded...

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Autores principales:	D. Mathioudakis, I. Michalopoulos, K. Kalogeropoulos, K. Papadopoulou, G. Lyberatos
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	biogas household fermentable waste pabr source separation valorization Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/99f7a0130aee42fda14841dedde36e7d
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spelling	oai:doaj.org-article:99f7a0130aee42fda14841dedde36e7d2021-11-06T11:13:54ZAnaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor0273-12231996-973210.2166/wst.2021.230https://doaj.org/article/99f7a0130aee42fda14841dedde36e7d2021-07-01T00:00:00Zhttp://wst.iwaponline.com/content/84/2/420https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The objective of the current work is to study the impact of the operational parameters' variation (HRT, OLR and T) on biomethane productivity in a periodic anaerobic baffled reactor (PABR). The feedstock used was a biomass product named food residue biomass (FORBI), which is dried and shredded source-separated household food waste. The PABR is an innovative, high-rate bioreactor. Apart from the hydraulic retention time (HRT) and the organic loading rate (OLR), an important operational parameter is the switching period (T) of the feeding compartment: when T is high, the bioreactor operation is similar to an anaerobic baffled reactor (ABR), while when it is low, the operation approaches that of an upflow anaerobic sludge blanket reactor (UASBR). Nine distinct experimental phases were conducted, during which the operational parameters of the PABR were consecutively modified: the HRT varied from 9 to 2.5 days, T between 2 days and 1 and finally the OLR from 1.24 gCOD/Lbioreactord to 8.08 gCOD/Lbioreactord. The maximum biomethane yield was 384 LCH4/kgFORBI corresponding to the operation at HRT = 5 d, OLR = 2.14 gCOD/Lbioreactord and T = 2 days. Similar efficiency (333 LCH4/kgFORBI) was achieved at higher OLR (4.53 gCOD/Lbioreactord). Highlights The feedstock used was a biomass product food residue biomass (FORBI), which is dried and shredded food waste.; Periodic anaerobic baffled reactor (PABR), a high-rate bioreactor.; The switching period (T) of the feeding compartment gives the bioreactor the element of operational flexibility.; The PABR can efficiently operate at HRTs as low as 2.5 days, however, the highest biomethane yield was achieved under HRT of 5 d.;D. MathioudakisI. MichalopoulosK. KalogeropoulosK. PapadopoulouG. LyberatosIWA Publishingarticlebiogashousehold fermentable wastepabrsource separationvalorizationEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 2, Pp 420-430 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biogas household fermentable waste pabr source separation valorization Environmental technology. Sanitary engineering TD1-1066
spellingShingle	biogas household fermentable waste pabr source separation valorization Environmental technology. Sanitary engineering TD1-1066 D. Mathioudakis I. Michalopoulos K. Kalogeropoulos K. Papadopoulou G. Lyberatos Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor
description	The objective of the current work is to study the impact of the operational parameters' variation (HRT, OLR and T) on biomethane productivity in a periodic anaerobic baffled reactor (PABR). The feedstock used was a biomass product named food residue biomass (FORBI), which is dried and shredded source-separated household food waste. The PABR is an innovative, high-rate bioreactor. Apart from the hydraulic retention time (HRT) and the organic loading rate (OLR), an important operational parameter is the switching period (T) of the feeding compartment: when T is high, the bioreactor operation is similar to an anaerobic baffled reactor (ABR), while when it is low, the operation approaches that of an upflow anaerobic sludge blanket reactor (UASBR). Nine distinct experimental phases were conducted, during which the operational parameters of the PABR were consecutively modified: the HRT varied from 9 to 2.5 days, T between 2 days and 1 and finally the OLR from 1.24 gCOD/Lbioreactord to 8.08 gCOD/Lbioreactord. The maximum biomethane yield was 384 LCH4/kgFORBI corresponding to the operation at HRT = 5 d, OLR = 2.14 gCOD/Lbioreactord and T = 2 days. Similar efficiency (333 LCH4/kgFORBI) was achieved at higher OLR (4.53 gCOD/Lbioreactord). Highlights The feedstock used was a biomass product food residue biomass (FORBI), which is dried and shredded food waste.; Periodic anaerobic baffled reactor (PABR), a high-rate bioreactor.; The switching period (T) of the feeding compartment gives the bioreactor the element of operational flexibility.; The PABR can efficiently operate at HRTs as low as 2.5 days, however, the highest biomethane yield was achieved under HRT of 5 d.;
format	article
author	D. Mathioudakis I. Michalopoulos K. Kalogeropoulos K. Papadopoulou G. Lyberatos
author_facet	D. Mathioudakis I. Michalopoulos K. Kalogeropoulos K. Papadopoulou G. Lyberatos
author_sort	D. Mathioudakis
title	Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor
title_short	Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor
title_full	Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor
title_fullStr	Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor
title_full_unstemmed	Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor
title_sort	anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/99f7a0130aee42fda14841dedde36e7d
work_keys_str_mv	AT dmathioudakis anaerobicdigestionofdriedshreddedfoodwasteinaperiodicanaerobicbaffledreactor AT imichalopoulos anaerobicdigestionofdriedshreddedfoodwasteinaperiodicanaerobicbaffledreactor AT kkalogeropoulos anaerobicdigestionofdriedshreddedfoodwasteinaperiodicanaerobicbaffledreactor AT kpapadopoulou anaerobicdigestionofdriedshreddedfoodwasteinaperiodicanaerobicbaffledreactor AT glyberatos anaerobicdigestionofdriedshreddedfoodwasteinaperiodicanaerobicbaffledreactor
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Anaerobic digestion of dried/shredded food waste in a periodic anaerobic baffled reactor

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