Simultaneous organosolv pretreatment and detoxification of municipal solid waste for efficient biobutanol production.
Bioresour Technol
; 270: 236-244, 2018 Dec.
Article
in En
| MEDLINE
| ID: mdl-30219575
ABSTRACT
Municipal solid waste (MSW) was used as a source for biobutanol production via acetone, butanol, and ethanol (ABE) fermentation. Organosolv pretreatment was used for simultaneous extraction of inhibitors, particularly tannins, and pretreatment of lignocellulosic fraction prior to hydrolysis. The hydrolysates of the pretreated MSW contained appreciable amounts of sugars and soluble starch together with a tolerable amount of inhibitors for Clostridium acetobutylicum. The hydrolysate obtained from MSW pretreated with 85% ethanol at 120⯰C for 30â¯min fermented to the highest ABE concentration of 13.06â¯g/L with the yield of 0.33â¯g/g carbon source. Through this process, 102.4â¯mg butanol, 40.16â¯mg acetone, and 13.14â¯mg ethanol were produced from each g of organic fraction of MSW (OFMSW). The pretreatment at mild conditions with higher ethanol concentration accompanied with the lowest glucose yield (0.145â¯g/g) and the highest starch recovery resulted in the uppermost ABE yield of 0.16â¯g/g OFMSW.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Solid Waste
/
Butanols
Language:
En
Journal:
Bioresour Technol
Journal subject:
ENGENHARIA BIOMEDICA
Year:
2018
Type:
Article
Affiliation country:
Iran