Effect of light supply in photobioreactors on the biomass productivity and energy efficiency of Scenedesmus sp

 

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dc.contributor.advisor Harrison, STL en_ZA
dc.contributor.author Gani, Aliya Habibti en_ZA
dc.date.accessioned 2015-10-06T14:18:18Z
dc.date.available 2015-10-06T14:18:18Z
dc.date.issued 2013 en_ZA
dc.identifier.citation Gani, A. 2013. Effect of light supply in photobioreactors on the biomass productivity and energy efficiency of Scenedesmus sp. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/14155
dc.description.abstract Production of biofuel from microalgae is an attractive and sustainable option for meeting rising global energy demands and mitigating global warming. However, for commercial production of microalgae to be economically feasible, high biomass productivities and low auxiliary energy inputs must be achieved in large photobioreactors. According to literature, one of the main factors limiting growth is the inefficiency of light utilization (Posten, 2009; Janssen et al., 2003; Carvalho et al., 2006). In a photobioreactor, as biomass concentration and depth of culture increase, the amount of light that is able to penetrate the culture decreases exponentially. This occurs because of mutual shading of algal cells via adsorption of pigments or via scattering of cells. The purpose of this study was to optimize biomass productivity and biomass concentration by developing a thorough understanding of the microalgal response to light. In particular, the effects of light source, light intensity, configuration (internal and external), reactor design and the related variation in light/dark cycling were investigated. en_ZA
dc.language.iso eng en_ZA
dc.subject.other Bioprocess Engineering en_ZA
dc.title Effect of light supply in photobioreactors on the biomass productivity and energy efficiency of Scenedesmus sp en_ZA
dc.type Master Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Engineering and the Built Environment
dc.publisher.department Centre for Bioprocess Engineering Research
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc (Eng) en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Gani, A. H. (2013). <i>Effect of light supply in photobioreactors on the biomass productivity and energy efficiency of Scenedesmus sp</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Bioprocess Engineering Research. Retrieved from http://hdl.handle.net/11427/14155 en_ZA
dc.identifier.chicagocitation Gani, Aliya Habibti. <i>"Effect of light supply in photobioreactors on the biomass productivity and energy efficiency of Scenedesmus sp."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Bioprocess Engineering Research, 2013. http://hdl.handle.net/11427/14155 en_ZA
dc.identifier.vancouvercitation Gani AH. Effect of light supply in photobioreactors on the biomass productivity and energy efficiency of Scenedesmus sp. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Bioprocess Engineering Research, 2013 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/14155 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Gani, Aliya Habibti AB - Production of biofuel from microalgae is an attractive and sustainable option for meeting rising global energy demands and mitigating global warming. However, for commercial production of microalgae to be economically feasible, high biomass productivities and low auxiliary energy inputs must be achieved in large photobioreactors. According to literature, one of the main factors limiting growth is the inefficiency of light utilization (Posten, 2009; Janssen et al., 2003; Carvalho et al., 2006). In a photobioreactor, as biomass concentration and depth of culture increase, the amount of light that is able to penetrate the culture decreases exponentially. This occurs because of mutual shading of algal cells via adsorption of pigments or via scattering of cells. The purpose of this study was to optimize biomass productivity and biomass concentration by developing a thorough understanding of the microalgal response to light. In particular, the effects of light source, light intensity, configuration (internal and external), reactor design and the related variation in light/dark cycling were investigated. DA - 2013 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2013 T1 - Effect of light supply in photobioreactors on the biomass productivity and energy efficiency of Scenedesmus sp TI - Effect of light supply in photobioreactors on the biomass productivity and energy efficiency of Scenedesmus sp UR - http://hdl.handle.net/11427/14155 ER - en_ZA


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