Evaluation of removal carbon dioxide emissions from the semiconductor industry by algae / 以藻類去除半導體業廢氣中二氧化碳之可行性研究

碩士 / 國立中央大學 / 環境工程研究所碩士在職專班 / 99 / The global population continues increasing, which increases the human technological development and economic activities for the environment. It also brought a significant impact on a lot of greenhouse gas emissions caused by frequent natural disasters around the world, climate change, energy depletion, lack of food, and rise in carbon dioxide concentration, which changes in environment and climate.
The industrialists realized to make a strategy for both economy and environment in order to achieve sustainable development. The biological approach of environmental restoration, has been identified as a minimum impact on the environment, but also the most sustainable way of potential growth. The most popular functionality adopts to reduce carbon dioxide presence in the global is planting trees. Planting trees is the best way to restore the surface of the natural ecology so far. Unfortunately, the efficiency of absorption of carbon dioxide is far lower than the rate of human-made greenhouse gases. Nowadays, using algae or microbial photosynthesis to cut carbon emissions has received increased attention. To contrast with terrestrial energy, the advantage of algae is its fast-growing, and the high efficiency of carbon fixation. The algae photosynthetic biological fixation ability can be transformed from carbon dioxide to hydrocarbons, and it also can be used as feed, fertilizer, fuel, etc. It has not only been considered to be a minimum impact on the environment, but also is the most sustainable growth potential of the carbon pollution reduction methods.
In this study, to work cooperatively with industries and academic, to improve the global warming as a starting point, to reduce the carbon emissions as the purpose of assessing plant emissions, to evaluate algae for carbon capture of the feasibility study with boiler combustion exhaust gas as a carbon source at semiconductor plant, the thin plate vertical reactor to conduct the photosynthetic algae cultivation, and the harvest equipment for thin-film algae concentrated harvest have been focused. The traditional farming algae, with small footprint, combined with LED light source to provide lighting to extend the algae photosynthesis reaction time and required nutrient source. We found that Carbon Dioxide Meter with 40 Hz performed the best carbon dioxide removal effiiciency by 25%. The optimum operation conditions are 0.1NNaOH, and the cultivation algae of Spirulina maxima had the best growth effect, the algae grew most with a pH value of 8. A dilution ratio of 0.2(one-fifth time) has a higher algae production. However, the auxiliary LED light source didn’t have positive effect. The most important is carbon emissions from the plant, which provides for growth of algae and they can also reduce carbon dioxide (CO2) emissions directly based on the whole to achieve environmental protection, carbon reduction, and economical beneficial result.

Identiferoai:union.ndltd.org:TW/099NCU05515038
Date January 2011
CreatorsKuan-fei Wang, 王冠翡
ContributorsJiunn-fwu Lee, 李俊福
Source SetsNational Digital Library of Theses and Dissertations in Taiwan
Languagezh-TW
Detected LanguageEnglish
Type學位論文 ; thesis
Format80

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