Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7067019 | Bioresource Technology | 2018 | 36 Pages |
Abstract
The helix pitch and trichome length of Spirulina sp. were promoted to improve the biomass harvesting efficiency and CO2 fixation rate in 660â¯m2 raceway ponds aerated with food-grade CO2 purified from a coal chemical flue gas. The CO2 fixation rate was improved with increased trichome length of the Spirulina sp. in a raceway pond with double paddlewheels, baffles, and CO2 aerators (DBA raceway pond). The trichome length has increased by 33.3â¯Î¼m, and CO2 fixation rate has increased by 42.3% and peaked to 51.3â¯g/m2/d in a DBA raceway pond. Biomass harvesting efficiency was increased with increased helix pitch. When the day-average greenhouse temperature was 33â¯Â°C and day-average sunlight intensity was 72,100â¯luÃ, the helix pitch of Spirulina sp. was increased to 56.2â¯Î¼m. Hence the biomass harvesting efficiency was maximized to 75.6% and biomass actual yield was increased to 35.9â¯kg in a DBA raceway pond.
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Physical Sciences and Engineering
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Authors
Jun Cheng, Wangbiao Guo, Kubar Ameer Ali, Qing Ye, Guiyong Jin, Zhanshan Qiao,