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dc.contributor.authorFreitas, Andrew Daniel Sanchezen_US
dc.date.accessioned2015-02-13T09:00:09Z
dc.date.available2015-02-13T09:00:09Z
dc.date.issued2015-02-12en_US
dc.identifier.othervt_gsexam:4443en_US
dc.identifier.urihttp://hdl.handle.net/10919/51388
dc.description.abstractBiogas, a gaseous mixture produced during decomposition of organic matter, is a renewable, easily generated and common byproduct of anaerobic digestion at wastewater treatment plants (WWTP), landfills and agricultural operations. There is growing interest in researching and utilizing the energy potential associated with its combustion. Siloxanes, a family of volatile organic silicon compounds, pose large impediments to biogas usage due to the formation and precipitation of silicon dioxide within combustion devices. Removal of siloxanes prior to combustion is therefore a growing endeavor. Research was performed to synthesize a representative gas stream produced from anaerobic digesters within WWTP. Methane, carbon dioxide and hydrogen sulfide were combined with humidity and gaseous siloxane in levels characteristically seen exiting anaerobic digesters. A methanol impinger train was utilized to sample the biogas composite. Gas chromatography-mass spectrometry (GC-MS) was used to determine gas-phase siloxane concentrations in the gas stream effluent for the purposes of confirming the generation of a consistent and reproducible biogas stream.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.rightsThis Item is protected by copyright and/or related rights. Some uses of this Item may be deemed fair and permitted by law even without permission from the rights holder(s), or the rights holder(s) may have licensed the work for use under certain conditions. For other uses you need to obtain permission from the rights holder(s).en_US
dc.subjectbiogas synthesisen_US
dc.subjectsiloxaneen_US
dc.subjectanaerobic digesteren_US
dc.subjectwastewater treatment plantsen_US
dc.subjectgas chromatography-mass spectrometryen_US
dc.titleMethod Development for the Synthesis of Anaerobic Digester Biogas with the Laboratory Environmenten_US
dc.typeThesisen_US
dc.contributor.departmentCivil and Environmental Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineEnvironmental Engineeringen_US
dc.contributor.committeechairBoardman, Gregory D.en_US
dc.contributor.committeememberCox, Steven S.en_US
dc.contributor.committeememberBott, Charles B.en_US


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