Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/80179
Title: Increase of Microalgal Production Through Symbiosis and Scale-up Mircroalgal Cultivation
Authors: GUO ZHI
Keywords: Microalgae,biofuels,symbiosis,scale-up,outdoor-cultivation,photobioreactor
Issue Date: 23-Jan-2014
Source: GUO ZHI (2014-01-23). Increase of Microalgal Production Through Symbiosis and Scale-up Mircroalgal Cultivation. ScholarBank@NUS Repository.
Abstract: Microalgae are considered the most promising feedstock for the next generation of biofuels. However, the major challenge of microalgal biofuels lies in the algal biomass production. Therefore, this thesis was designed to increase microalgal production through different approaches. The first objective was applying synergistic microalgae-bacterial interaction to increase the algal concentration. One symbiotic bacteria Pseudomonas sp. was found having a growth promoting effect on C. vulgaris when they were co-cultured under photoautotrophic conditions. The second objective was to investigate the feasibility of scaling up microalgal culture. It was found that under the optimized CO2 input conditions, the algal growth was not affected while the amount of CO2 used was reduced by 50%. The third objective was to investigate the method of increasing algal biomass production and lipid productivity in outdoor environment. A two-stage cultivation strategy was successfully applied in pilot-scale microalgal cultivation.
URI: http://scholarbank.nus.edu.sg/handle/10635/80179
Appears in Collections:Ph.D Theses (Open)

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