Title:
Biogas Yields of Prickly Pear (Opuntia ficus indica [(L.) Miller]) and Pig Manure Co-digestion. Laboratory and Pilot Plant Experiments in Extremadura Region (Southwestern Spain).
Author(s):
Bolivar Pimienta, H.M., Parralejo, A.I., González, J., Matias Prieto, J.
Document(s):
Paper
Poster
Abstract:
The purpose of this study was to enhance the efficiency of pig manure using prickly pear in mixture with different percentages (5%, 7.5% and 10%). Co-digestion with prickly pear allows to increase the yield of L CH4/kg Volatile Solids (VS) up to 9.3%, 17% and 27%, respectively. The mixture with 10% of prickly pear juice and 90% of pig manure got higher reduction of chemical oxygen demand (COD), total solids (TS) and VS, being the figures 62%, 27.7% and 12%, respectively. Prickly pear is a substrate with excellent properties of biodegradability and when it is added as co-substrate can increase the digestion efficiency. An experiment was developed in a pilot plant to study the anaerobic digestion with similar results as the laboratory ones.
Keywords:
biogas, methane, pilot plant, anaerobic co-digestion, pig manure, prickly pear
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:
2DV.4.28
Pages:
1261 - 1263
ISBN:
978-88-89407-53-0
Paper DOI:
10.5071/21stEUBCE2013-2DV.4.28
Price:
FREE
