Integrating bio-based resource recovery and treatment into municipal solid waste management in developing countries: a focus on anaerobic digestion

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dc.contributor.advisorVon Blottnitz, Harroen_ZA
dc.contributor.authorMunganga, Graciaen_ZA
dc.date.accessioned2016-02-11T06:58:34Z
dc.date.available2016-02-11T06:58:34Z
dc.date.issued2012en_ZA
dc.description.abstractMany authors, along with the United Nations Environment Programme (UNEP), argue that biological treatments such as anaerobic digestion (AD) and composting would be suitable in developing cities due the highly organic nature of their waste. AD entails the degradation of organic substances in the absence of oxygen, and its main products are CH 4-rich biogas and the remaining sludge. AD occurs in four main phases (hydrolysis, acidogenesis, acetogenesis and methanogenesis) and is a complex process, where microbiological, biochemical and physico-chemical phenomena are closely linked. Although composting the organic fraction of MSW (OFMSW) has been the preferred treatment method due to the low economic costs and operative ease, the production of biogas - a renewable energy source - has now positioned AD as the more energy efficient process as opposed to composting which requires energy inputs. A clear identification and understanding of the different organic waste streams available, their respective biogas potential, the engineering considerations and process limitations are needed to ensure good performance of AD plants. Location-specific data on the behaviour of different organic wastes in AD are, however, scarce, particularly in Africa. This dissertation is an attempt to generate Africa-relevant engineering knowledge through laboratory scale experiments of AD of organic waste streams typically disposed off in landfills. The main objectives of this dissertation are to (i) investigate the suitability for treatment by AD of typical organic waste streams in MSW, and (ii) consider the interplay between the nature of the available wastes and the temporal evolution of various process parameters. Finally, this dissertation aims to make sound recommendations from the data generated, building a preliminary source of knowledge for waste management officials and independent entrepreneurs.en_ZA
dc.identifier.apacitationMunganga, G. (2012). <i>Integrating bio-based resource recovery and treatment into municipal solid waste management in developing countries: a focus on anaerobic digestion</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Bioprocess Engineering Research. Retrieved from http://hdl.handle.net/11427/16970en_ZA
dc.identifier.chicagocitationMunganga, Gracia. <i>"Integrating bio-based resource recovery and treatment into municipal solid waste management in developing countries: a focus on anaerobic digestion."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Bioprocess Engineering Research, 2012. http://hdl.handle.net/11427/16970en_ZA
dc.identifier.citationMunganga, G. 2012. Integrating bio-based resource recovery and treatment into municipal solid waste management in developing countries: a focus on anaerobic digestion. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Munganga, Gracia AB - Many authors, along with the United Nations Environment Programme (UNEP), argue that biological treatments such as anaerobic digestion (AD) and composting would be suitable in developing cities due the highly organic nature of their waste. AD entails the degradation of organic substances in the absence of oxygen, and its main products are CH 4-rich biogas and the remaining sludge. AD occurs in four main phases (hydrolysis, acidogenesis, acetogenesis and methanogenesis) and is a complex process, where microbiological, biochemical and physico-chemical phenomena are closely linked. Although composting the organic fraction of MSW (OFMSW) has been the preferred treatment method due to the low economic costs and operative ease, the production of biogas - a renewable energy source - has now positioned AD as the more energy efficient process as opposed to composting which requires energy inputs. A clear identification and understanding of the different organic waste streams available, their respective biogas potential, the engineering considerations and process limitations are needed to ensure good performance of AD plants. Location-specific data on the behaviour of different organic wastes in AD are, however, scarce, particularly in Africa. This dissertation is an attempt to generate Africa-relevant engineering knowledge through laboratory scale experiments of AD of organic waste streams typically disposed off in landfills. The main objectives of this dissertation are to (i) investigate the suitability for treatment by AD of typical organic waste streams in MSW, and (ii) consider the interplay between the nature of the available wastes and the temporal evolution of various process parameters. Finally, this dissertation aims to make sound recommendations from the data generated, building a preliminary source of knowledge for waste management officials and independent entrepreneurs. DA - 2012 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2012 T1 - Integrating bio-based resource recovery and treatment into municipal solid waste management in developing countries: a focus on anaerobic digestion TI - Integrating bio-based resource recovery and treatment into municipal solid waste management in developing countries: a focus on anaerobic digestion UR - http://hdl.handle.net/11427/16970 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/16970
dc.identifier.vancouvercitationMunganga G. Integrating bio-based resource recovery and treatment into municipal solid waste management in developing countries: a focus on anaerobic digestion. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Bioprocess Engineering Research, 2012 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/16970en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentCentre for Bioprocess Engineering Research
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titleIntegrating bio-based resource recovery and treatment into municipal solid waste management in developing countries: a focus on anaerobic digestionen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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