[An experimental study for fixation of CO2 in stack gases using microalgae cultivation].
To obtain a microalgae growing well in the condition of stack gases and to find a good method of fixing greenhouse gases, the ZY-1 strain identified as a species of Chlorella genus was isolated from soil-water mixture samples collected from a paddy field after an enrichment culture using the reproduced stack gases containing 15% of CO2 and 2% of O2. The results showed that the range of CO2 concentration for the optimum growth of the ZY-1 strain was 10-15%. The ZY-1 strain had its maximum growth when the CO2 concentration was 10%. Under a broad range of physically conditions including 0.25-0.75 L.min-1 of air flowing rate, 25-30 degrees C of temperature and pH 4-6, the ZY-1 strain had a steady growth. The optimum cultural condition with 0.397% of the CO2 utilization efficiency was seemed to be 10% of CO2, 25 degrees C and pH 5.0. It is feasible to fix greenhouse gases using the stack gases combined with the ZY-1 strain.
Yue
Lihong
L
Resources and Civil Engineering College, Northeast University, Shenyang 110006.
Chen
Baozhi
B
Wang
Li
L
Hu
Xiaomin
X
D002245:Carbon Dioxide / Q000378:metabolism*; D002708:Chlorella / Q000378:metabolism*; D003470:Culture Media
D003470:Culture Media; D002245:Carbon Dioxide