Ethanol production from the organic fraction obtained after thermal pretreatment of municipal solid waste.
In this work, the use of organic fraction from municipal solid waste (MSW) as substrate for ethanol production based on enzymatic hydrolysis was evaluated. MSW was subjected to a thermal pretreatment (active hygienization) at 160 degrees C from 5 to 50 min. The organic fiber obtained after 30 min was used as substrate in a simultaneous saccharification and fermentation (SSF) and fed-batch SSF process using cellulases and amylases. In a fed-batch mode with 25% (w/w) substrate loading, final ethanol concentration of 30 g/L was achieved (60% of theoretical). In these conditions, more than 160 L of ethanol per ton of dry matter could be produced from the organic fraction of MSW.
Ballesteros
Mercedes
M
Renewable Energies Department, CIEMAT, Avda. Complutense 22, 28040 Madrid, Spain.
Sáez
Felicia
F
Ballesteros
Ignacio
I
Manzanares
Paloma
P
Negro
Maria Jose
MJ
Martínez
Jose Maria
JM
Castañeda
Rafael
R
Oliva Dominguez
Jose Miguel
JM
D056804:Biofuels; D019149:Bioreactors; D002947:Cities; D004798:Enzymes / Q000378:metabolism; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005947:Glucose / Q000378:metabolism; D006358:Hot Temperature; D006868:Hydrolysis; D014866:Waste Products
D056804:Biofuels; D004798:Enzymes; D014866:Waste Products; D000431:Ethanol; D005947:Glucose