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Biogas Production from Organic Waste, Meat and FOG by Anaerobic Digestion and Ultimate Sludge Digestibility

The anaerobic biodegradability of food waste (FW), meat waste and FOG (fats, oils
and greases) with municipal primary sewage sludge was assessed using a laboratory scale
anaerobic digester and by ultimate sludge digestibility, at mesophilic conditions by varying
the inoculum to feedstock ratio (1:2-1:10) and solids retention time (SRT). Preliminary
analysis assessed the anaerobic digestion of food waste and meat at a biogas production
over 30 days at 1000 mL and 1400 mL, respectively. The maximum methane yield was
0.18 m3/kg VS and 0.50 m3/kg VS for 1:10 in meat and FOG, respectively in 28 days with
56-61% volatile solids of destruction and first order methane generation rate of 0.15 d-1 for
both meat and FOG. The optimal ratio for meat and FOG was determined to be beyond
highest ratio tested (1:10), and longer SRT should be considered to investigate the impact
of feedstock on methane yield. Preliminary modeling suggests that for one 1.74 MG
digester, diverting just 0.6% of the food waste generated in one-third of Palm Beach
County could produce enough methane to power 130-360 homes for one full month. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2018. / FAU Electronic Theses and Dissertations Collection

Identiferoai:union.ndltd.org:fau.edu/oai:fau.digital.flvc.org:fau_40853
ContributorsSethi, Rohan (author), Meeroff, Daniel E. (Thesis advisor), Florida Atlantic University (Degree grantor), College of Engineering and Computer Science, Department of Civil, Environmental and Geomatics Engineering
PublisherFlorida Atlantic University
Source SetsFlorida Atlantic University
LanguageEnglish
Detected LanguageEnglish
TypeElectronic Thesis or Dissertation, Text
Format108 p., application/pdf
RightsCopyright © is held by the author, with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder., http://rightsstatements.org/vocab/InC/1.0/

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