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Showing 1 to 10 of 10 for “"Raceway Pond"”.
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Effects of Raceway Pond Water and Nutrient Recycling on Microalgae Production and Harvesting
… of auto-inhibitory compounds in recycled algae pond water. An additional concern is that nutrients in the residuals from algae biofuel manufacturing will be only partly bioavailable. Both these factors can limit the extent of internal recycling. Ultimately, combining external and internal …
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Optimization of biomass and lipids production from microalgae using wastewater in a pilot scale raceway pond
Submitted in fulfilment of the requirements of the degree of Doctor of Philosophy: Biotechnology in the Faculty of Applied Sciences at the Durban University of Technology, 2021.
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Adaptive Laboratory Evolution of Scenedesmus obliquus for Increased Carbohydrate Content and Biomass Productivity
… and selection under outdoor conditions in a raceway pond at a high dilution rate to increase biomass productivity.</p> <p>Two cultigens were generated with the goal of increased carbohydrate content: K5 and K7. Both were mutagenized for 5 seconds and cultivated in 50-mL Klavins reactors. K5 …
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Environmental and economic assessment of microalgae-derived jet fuel
… The four cultivation technologies include open raceway ponds, horizontal serpentine tubular photobioreactors (PBRs), vertical serpentine tubular PBRs, and vertical flat panel PBRs. Open raceway ponds were modeled from previous literature, while the PBRs were modeled, validated and optimized for …
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A dynamic engineering model of algal cultivation systems
… (PBR) and 6.7%+/5.33% for an open raceway pond (ORP) across five total species: Chlorella vulgaris, Desmodesmus intermedius, Galdieria sulphuraria, Galdieria sulphuraria Soos, and Nannochloropsis oceanica. The validated model assesses productivity at several locations in the United …
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Carbon dioxide mass transfer within algal raceway ponds and the potential for improvement using slopes to create wave
… processes for certain applications. The raceway pond is the most common reactor used for the growth of microalgae, due to low capital costs, low operating costs, higher energy efficiency, improved net energy recovery and ease of installation. Low carbon dioxide mass transfer, which limits …
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Identification and quantification of bacteria associated with cultivated Spirulina and impact of physiological factors
… high protein content and nutritional value. Open raceway pond systems are popularly used for commercial industrial scale cultivation of microalgae due to their economic feasibility. These open cultivation systems are, however, susceptible to contamination by other microorganisms. This raises …
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Evaluation of the competitive performance of an indigenous eicosapentaenoic acid producing microalgal isolate
… for omega-3 fatty acid production in an open raceway pond than a current species of choice. The objectives of the study were achieved by investigating the biomass, EPA production and response to reactor configuration and process conditions, with a view to assessing the potential to further …
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Enhancing CO2 mass transfer in algal raceway ponds through wave generation
… of microalgae is currently mostly done using raceway ponds. These ponds however suffer from low algal productivities compared to closed photobioreactors, in part due to inadequate CO2 mass transfer into the culture. A previous study at the University of Cape Town explored a method to improve …
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Enhancing CO2 mass transfer in large scale algal raceway ponds through wave generation
The commercial growth of algae in raceway ponds is limited by the availability of carbon, supplied as carbon dioxide (CO2), resulting in a linear growth rate, also described as biomass productivity, determined by the mass transfer rate. This reduces the specific growth rate of the system, as the …