Details

Title:

Enhanced Methane Productivity from Lignocellulosic Fibers Using Aqueous Ammonia Soaking (AAS) Treatment

Author(s):

Jurado, E., Mirtsou-Xanthopoulou, C., Gavala, H. N., Skiadas, I. V.

Document(s):

Abstract:

Aqueous ammonia soaking (AAS) and subsequent ammonia removal has been tested as a simple and cheap method to disrupt the lignocellulose and increase the methane potential and the biogas productivity of manure fibers. In the present study, mesophilic anaerobic digestion of AAS pretreated manure fibers was tested in CSTR­type digesters fed with swine manure and/or a mixture of swine manure and AAS pretreated manure fibers fibers. The Anaerobic Digestion Model No.1 (ADM1) was used to simulate a mesophilic reactor fed with swine manure and to predict the effect of addition of swine manure fibers pretreated with AAS. According to our results, the CH4 productivity of liquid manure could be easily increased to more than 30 m3/ton if the total solids content of the manure was increased to around 12% by addition of AAS­treated raw or digested fibers.

Keywords:

anaerobic digestion, continuous reactor, pretreatment, aqueous ammonia soaking, batch test

Topic:

R&D on Biomass Conversion Technologies for Heating, Electricity and Chemicals

Subtopic:

Anaerobic digestion for biogas production

Event:

21st European Biomass Conference and Exhibition

Session:

2DO.7.1

Pages:

723 - 724

ISBN:

978-88-89407-53-0

Paper DOI:

10.5071/21stEUBCE2013-2DO.7.1

Price:

FREE