碩士 / 大葉大學 / 環境工程學系碩士班 / 97 / Photobioreactors are normally designed to enhance the absorption efficiency of carbon dioxide and the light distribution, and to reduce self-shading in the reactor. In this study a recycle photobioreactor was designed to maintain a high concentration of microalgal biomass in the cultivation system for Tetraselmis chui by recycling culture with higher biomass concentration from the settler of the photobioreactor. The photobioreactor is consisted of a light tank and a settler. The volume of light tank is 7 L and that of settler is 12 L. Higher concentration of biomass for Tetraselmis chui was obtained in the bottom of the settler. Effects of sodium bicarbonate and recycle flow rate on growth of Tetraselmis chui were investigated.
According to the result, the suitable concentration of sodium bicarbonate was 2.0 g/L for Tetraselmis chui in the recycle photobioreactor. pH of culture with higher recycle rate was lower than that with lower recycle rate. However, biomass concentration with higher recycle rate was higher than that with lower recycle rate. The better settlement occurred at the concentration of 1.5 g sodium bicarbonate and with a recycle rate of 6.96 L/hr.
| Identifer | oai:union.ndltd.org:TW/097DYU00515004 |
| Date | January 2009 |
| Creators | Guo-Xuan Zhang, 張國軒 |
| Contributors | 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 | 121 |
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