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

被引：1

作者：

Saadoun, Lamia ^{[1
,3
]}

Campitelli, Alessio ^{[2
]}

Kannengiesser, Jan ^{[2
]}

Stanojkovski, Daniel ^{[2
]}

Fels, Abdelhafid El Alaoui El ^{[1
]}

Mandi, Laila ^{[1
,3
]}

Ouazzani, Naaila ^{[1
,3
,4
,5
]}

机构：

[1] Cadi Ayyad Univ, Fac Sci Semlalia, Lab Water Biodivers & Climate Change, POB 2390, Marrakech, Morocco

[2] Tech Univ Darmstadt, Inst IWAR, Dept Mat Flow Management & Resource Econ, Franziska Braun Str 7, D-64287 Darmstadt, Germany

[3] Cadi Ayyad Univ, Natl Ctr Studies & Res Water & Energy CNEREE, POB 511, Marrakech, Morocco

[4] Univ Cadi Ayyad, Fac Sci Semlalia, Lab Water Biodivers & Climate Change, BP 2390, Marrakech, Morocco

[5] Univ Cadi Ayyad, Natl Ctr Studies & Res Water & Energy CNEREE, Marrakech, Morocco

来源：

BIORESOURCE TECHNOLOGY REPORTS | 2022年 / 17卷

关键词：

Organic municipal solid waste; Co-digestion; Leachate recirculation; Dilution; Medium chain fatty acid; EXTRACELLULAR ENZYME-ACTIVITIES; FOOD WASTE; CO-DIGESTION; ANAEROBIC-DIGESTION; VFA PRODUCTION; PH; FERMENTATION; MICROBIOMES; TEMPERATURE; ELONGATION;

D O I：

10.1016/j.biteb.2021.100872

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

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.

引用

页数：10