碩士 / 大葉大學 / 環境工程學系碩士班 / 94 / The increase of the concentration of carbon dioxide in the atmosphere has been considered as the main cause of global warming. Fixation of CO2 using photosynthesis by microalgae is a kind of potential approach. The study aims to cultivate Tetraselmis Chui using bicarbonate ion as carbon source which is formed by alkaline absorption. Effects of culture conditions on the growth of Tetraselmis Chui were performed in batch cultures. The main results and conclusion as the following:
1. Effects of the concentrations of sodium bicarbonate on the growth of Tetraselmis Chui. Batch cultivatins of Tetraselmis Chui with the concentration of NaHCO3 in the range from 5 g/L to 80 g/L were conducted with the light intensity of 30000 Lux, in the Walne medium. The results indicated that the highest biomass occurred at 40 g NaHCO3 / L.
2. Effects of light intensities on the growth of Tetraselmis Chui. Batch cultivations with the light intensities of 7500, 15000 and 30000 Lux were conducted at 20 g/L of sodium bicarbonate, in the Walne medium. The results indicated that the highest biomass occurred at 15000 Lux of light.
3. Effects of initial pH of cultures on the growth of Tetraselmis Chui. Batch cultivations with the pH of 8.20, 9.39, 10.39 and 11.51 were conducted at 20 g/L of sodium bicarbonate, and 7500 Lux of light, in the Walne medium. The results indicated that Tetraselmis Chui grew quickly with pH of 8.2 and 9.39, much slowly with pH of 10.39 and stopped growing with pH of 11.51.
Other factors investigated were the concentration of sodium nitrate, the concentration of NaH2PO4, the carbon sources, the light / dark period, and the composition of medium.
| Identifer | oai:union.ndltd.org:TW/094DYU00515009 |
| Date | January 2006 |
| Creators | Chien-Hsiung Hsu, 許建雄 |
| Contributors | Shih-Chung Yu, 余世宗 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 178 |
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