Title:
Anaerobic Digestion of Different Organic Feedstocks by Continuous Bioreactors
Author(s):
Särkkä, H., Saario, T., Mykkänen, A., Soininen, H.
Document(s):
Paper
Poster
Abstract:
Anaerobic digestion of different kind of organic feedstocks is an important part in recycling of waste resources and producing bioenergy. Materials used for wet and dry digestion processes affect essentially to methane production rates. In this study methane production rates of different mixtures of raw materials (forage, cattle manure sludge and sludge produced in wastewater treatment processes) were investigated by using continuous 15 L anaerobic digestion reactors. Reactors were run for 250 days and same time biogas and methane production rates, pH and alkalinity were followed. In both reactors biogas and methane production rates varied based on OLR and HRT values. During active phases of run biogas production varied from 423 to 870 mL/gVSd (avg.) for mixture of membrane bioreactor (MBR) sludge and forage and from 327 to 769 mL/gVSd (avg.) for mixture of cattle manure sludge and forage. Amount of methane in biogas varied from 47 to 54 % for mixture of MBR sludge and forage and from 48 to 59 % for mixture of cattle manure sludge and forage, respectively.
Keywords:
anaerobic digestion, biogas, sludge, manure, bioreactor, forage
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Anaerobic digestion for biogas production and biogas upgrading
Event:
26th European Biomass Conference and Exhibition
Session:
2CV.5.28
Pages:
795 - 797
ISBN:
978-88-89407-18-9
Paper DOI:
10.5071/26thEUBCE2018-2CV.5.28
Price:
FREE
