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Title: Manure Resource Recovery Co-Digestion with Fats, Oil, and Grease

PROJECT NUMBER:

STAR_N3R14a

PROJECT MANAGER:

Lauren Fillmore (x), M.Sc.
The Water Research Foundation
lfillmore@werf.org

PRINCIPAL INVESTIGATOR:

H. David Stensel, Ph.D., P.E., BCEE
University of Washington
stensel@uw.edu

STATUS:

Completed

LAST UPDATED:

5/17/2016

TOTAL FUNDING:

$218,348.00

REPORT DESCRIPTION:

Nutrient release to the environment from agricultural operations can impair water and air quality and lead to greenhouse gas emissions. Anaerobic digestion of manure waste offers a waste management option that provides a renewable energy source and a means to contain nutrients to facilitate nitrogen and phosphorus recovery and reuse. The low biomethane potential of animal manures can limit the economic viability of anaerobic digestion for manure waste management, but there is a potential to improve the economics by adding other high-energy waste material to the digester. This research investigated the ability to increase biomethane production in co-digestion of manure waste with the addition of a long chain fatty acid (LCFA) in the form of oleate in laboratory digesters. The researchers also evaluated the digester LCFA feeding strategy on the digester microbial population and bioconversion kinetics and digester stability. Published by WE&RF. 74 pages. Online PDF. (2017)

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STAR_N3R14a



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