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Acidogenic digestion of organic municipal solid waste in a pilot scale reactor: Effect of waste ratio and leachate recirculation and dilution on hydrolysis and medium chain fatty acid production

Saadoun, Lamia ; Campitelli, Alessio ; Kannengiesser, Jan ; Stanojkovski, Daniel ; El Alaoui El Fels, Abdelhafid ; Mandi, Laila ; Ouazzani, Naaila (2022):
Acidogenic digestion of organic municipal solid waste in a pilot scale reactor: Effect of waste ratio and leachate recirculation and dilution on hydrolysis and medium chain fatty acid production. (Publisher's Version)
In: Bioresource Technology Reports, 17, Elsevier, ISSN 2589-014X,
DOI: 10.26083/tuprints-00021434,
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Item Type: Article
Origin: Secondary publication service
Status: Publisher's Version
Title: Acidogenic digestion of organic municipal solid waste in a pilot scale reactor: Effect of waste ratio and leachate recirculation and dilution on hydrolysis and medium chain fatty acid production
Language: English
Abstract:

The purpose of this investigation is to study the effect of 1) leachate recirculation (LR) and dilution (LD), 2) the increment of the waste ratio, and 3) co-digestion using poultry waste as co-substrate for enhancing the acidogenesis process of the organic municipal solid waste (OMSW), thereby increasing the medium chain fatty acids (MCFAs) production. The results of the experiment carried in a batch pilot reactor show that LR increases hydrolysis as well as the OMSW conversion efficiency. Meanwhile, the highest total MCFA production of around 62,000 mg/L is shown for LR with a high OMSW ratio. Thus, a high concentration of hexanoic acid is shown in LR lysimeters (5475 mg/L, 6627 mg/L, and 10,889 mg/L respectively). However, a metabolic shift toward the production of heptanoic and octanoic acids is reported for LD samples. Nonetheless, the use of poultry waste as co-substrate in the co-digestion process multiplied the concentration of the produced MCFAs.

Journal or Publication Title: Bioresource Technology Reports
Volume of the journal: 17
Publisher: Elsevier
Collation: 10 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute IWAR > Material Flow Management and Resource Economy
TU-Projects: DLR|01DG17011|Trans4Biotec
DAAD|ID57357946|Partnerschaft mit Su
Date Deposited: 24 May 2022 10:10
Last Modified: 24 May 2022 10:10
DOI: 10.26083/tuprints-00021434
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-214342
Additional Information:

Keywords: Organic municipal solid waste, Co-digestion, Leachate recirculation, Dilution, Medium chain fatty acid

URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21434
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