Experimental Study Of Microorganism Gathering CO₂in Flue-gas

In recent years, the greenhouse effect intensifies become one of the most serious problem in global environmental problems. Since the intensification of the greenhouse effect brought about sea level rise, increased pests and diseases, climate anomalies and other problems caused by the loss to the world economy can not be estimated. Among all the greenhouse gases, CO2is a greenhouse gas of the greatest impact. As our special coal-based energy consumption structure, China's carbon dioxide emissions remain high. Therefore, the greenhouse effect of mitigation methods and CO2fixation should be studied.what's more,the less and less of fossil fuels bring on the studying of new energy sources. And which micro-organisms fix carbon dioxide technology in coal-fired power plant flue gas in the lower concentration of CO2in the process is showing its huge advantages.This paper studied the relationship between the photosynthetic efficiency Microcystis aeruginosa (CO2fixation efficiency) and CO2concentration in flue gas by experiment. The experimental details and the results include the following:1. the growth of Microcystis aeruginosa factors in light, temperature and oxygenation time of three factors is studied, and test data analysis and processing, which come three factors are significant factors, including temperature showing the most important affect on the growth of Microcystis aeruginosa;2. The test simulated flue gas of coal-fired power plant components, namely a higher concentration of carbon dioxide (13%-18%) and lower concentrations of oxygen (5%-8%), and concluded that flue gas concentration of carbon dioxide for the growth of Microcystis aeruginosa, and its growth rate significantly higher than the growth rate of the air, that is to say it suitable for flue gas carbon dioxide capture Microcystis aeruginosa;3. The carbon in Microcystis aeruginosa is studied by Fourier transform infrared spectroscopy in the test.The results have great significance for the preparation and transformation of the development of biomass energy. Therefore, the subject of research is of great significance for China to carry out the microbial CO2in flue gas capture and development of biomass energy.