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Title: The influence of slaughterhouse waste on fermentative H{sub 2} production from food waste: Preliminary results

Abstract

Highlights: • Co-digestion process finalized to bio-H{sub 2} production was tested in batch tests. • Slaughterhouse waste (SHW) and food waste (FW) were co-digested in different proportions. • The presence of SHW affected the H{sub 2} production from FW. • When SHW ranging between 50% and 70% the H{sub 2} production is improved. • SHW percentages above 70%, led to a depletion in H{sub 2} production. - Abstract: The aim of this study was to evaluate the influence of slaughterhouse waste (SHW; essentially the skin, fats, and meat waste of pork, poultry, and beef) in a fermentative co-digestion process for H{sub 2} production from pre-selected organic waste taken from a refectory (food waste [FW]). Batch tests under mesophilic conditions were conducted in stirred reactors filled with different proportions of FW and SHW. The addition of 60% and 70% SHW to a mixture of SHW and FW improved H{sub 2} production compared to that in FW only, reaching H{sub 2}-production yields of 145 and 109 ml gVS{sub 0}{sup -1}, respectively, which are 1.5–2 times higher than that obtained with FW alone. Although the SHW ensured a more stable fermentative process due to its high buffering capacity, a depletion of H{sub 2}more » production occurred when SHW fraction was higher than 70%. Above this percentage, the formation of foam and aggregated material created non-homogenous conditions of digestion. Additionally, the increasing amount of SHW in the reactors may lead to an accumulation of long chain fatty acids (LCFAs), which are potentially toxic for anaerobic microorganisms and may inhibit the normal evolution of the fermentative process.« less

Authors:
; ;
Publication Date:
OSTI Identifier:
22304597
Resource Type:
Journal Article
Journal Name:
Waste Management
Additional Journal Information:
Journal Volume: 33; Journal Issue: 6; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0956-053X
Country of Publication:
United States
Language:
English
Subject:
60 APPLIED LIFE SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRONMENTAL POLLUTANT EFFECTS ON LIVING ORGANISMS AND BIOLOGICAL MATERIALS; ANAEROBIC DIGESTION; BUILDUP; CARBOXYLIC ACIDS; FOAMS; HYDROGEN PRODUCTION; MEAT; MESOPHILIC CONDITIONS; MICROORGANISMS; ORGANIC WASTES; TOXICITY

Citation Formats

Boni, Maria Rosaria, Sbaffoni, Silvia, and Tuccinardi, Letizia. The influence of slaughterhouse waste on fermentative H{sub 2} production from food waste: Preliminary results. United States: N. p., 2013. Web. doi:10.1016/J.WASMAN.2013.02.024.
Boni, Maria Rosaria, Sbaffoni, Silvia, & Tuccinardi, Letizia. The influence of slaughterhouse waste on fermentative H{sub 2} production from food waste: Preliminary results. United States. https://doi.org/10.1016/J.WASMAN.2013.02.024
Boni, Maria Rosaria, Sbaffoni, Silvia, and Tuccinardi, Letizia. 2013. "The influence of slaughterhouse waste on fermentative H{sub 2} production from food waste: Preliminary results". United States. https://doi.org/10.1016/J.WASMAN.2013.02.024.
@article{osti_22304597,
title = {The influence of slaughterhouse waste on fermentative H{sub 2} production from food waste: Preliminary results},
author = {Boni, Maria Rosaria and Sbaffoni, Silvia and Tuccinardi, Letizia},
abstractNote = {Highlights: • Co-digestion process finalized to bio-H{sub 2} production was tested in batch tests. • Slaughterhouse waste (SHW) and food waste (FW) were co-digested in different proportions. • The presence of SHW affected the H{sub 2} production from FW. • When SHW ranging between 50% and 70% the H{sub 2} production is improved. • SHW percentages above 70%, led to a depletion in H{sub 2} production. - Abstract: The aim of this study was to evaluate the influence of slaughterhouse waste (SHW; essentially the skin, fats, and meat waste of pork, poultry, and beef) in a fermentative co-digestion process for H{sub 2} production from pre-selected organic waste taken from a refectory (food waste [FW]). Batch tests under mesophilic conditions were conducted in stirred reactors filled with different proportions of FW and SHW. The addition of 60% and 70% SHW to a mixture of SHW and FW improved H{sub 2} production compared to that in FW only, reaching H{sub 2}-production yields of 145 and 109 ml gVS{sub 0}{sup -1}, respectively, which are 1.5–2 times higher than that obtained with FW alone. Although the SHW ensured a more stable fermentative process due to its high buffering capacity, a depletion of H{sub 2} production occurred when SHW fraction was higher than 70%. Above this percentage, the formation of foam and aggregated material created non-homogenous conditions of digestion. Additionally, the increasing amount of SHW in the reactors may lead to an accumulation of long chain fatty acids (LCFAs), which are potentially toxic for anaerobic microorganisms and may inhibit the normal evolution of the fermentative process.},
doi = {10.1016/J.WASMAN.2013.02.024},
url = {https://www.osti.gov/biblio/22304597}, journal = {Waste Management},
issn = {0956-053X},
number = 6,
volume = 33,
place = {United States},
year = {Sat Jun 15 00:00:00 EDT 2013},
month = {Sat Jun 15 00:00:00 EDT 2013}
}