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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.
In: Bioresource Technology Reports, 17
doi: 10.26083/tuprints-00021434
Article, Secondary publication, Publisher's Version

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.

Item Type: Article
Erschienen: 2022
Creators: Saadoun, Lamia ; Campitelli, Alessio ; Kannengiesser, Jan ; Stanojkovski, Daniel ; El Alaoui El Fels, Abdelhafid ; Mandi, Laila ; Ouazzani, Naaila
Type of entry: Secondary publication
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
Date: 2022
Publisher: Elsevier
Journal or Publication Title: Bioresource Technology Reports
Volume of the journal: 17
Collation: 10 Seiten
DOI: 10.26083/tuprints-00021434
URL / URN: https://tuprints.ulb.tu-darmstadt.de/21434
Corresponding Links:
Origin: Secondary publication service
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.

Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-214342
Additional Information:

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

Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 13 Department of Civil and Environmental Engineering Sciences
13 Department of Civil and Environmental Engineering Sciences > Institute IWAR
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: 25 May 2022 06:01
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