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Effects of carbon concentration, pH, and bubbling depth on carbon dioxide absorption ratio in microalgae medium

文献类型：期刊论文

作者Yin, Dacong1,2; Wang, Zhongjie1,3; Wen, Xiaobin1,3; Ding, Yi1,3; Hou, Xiaoyu1,4; Geng, Yahong1,3; Li, Yeguang1,3
刊名ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
出版日期2019-11-01
卷号26期号:32页码:32902-32910
关键词Microalgae Carbon dioxide Carbon concentration pH Bubbling depth Absorption ratio
ISSN号0944-1344
DOI10.1007/s11356-019-06287-4
英文摘要The microalgae-based CO2 sequestration is considered to be an effective technique with great potential to cope with carbon emission. However, most researches are only focused on microalgae; the effects of physicochemical factors, which are carbon concentration, medium pH, and bubbling depth, on absorption and utilization of supplied CO2 in culture is less known. In order to understand and improve CO2 absorption in microalgae culture, the effects of these three factors were studied with different levels and combinations. Results revealed that when medium carbon concentration increased from 4.76 to 95.24 mmol/L, CO2 absorption ratio increased by about 12%, 10%, 12%, and 11% at medium depths of 10, 20, 40, and 80 cm, with the initial pH 10.6 to 9.7 by bubbling CO2, respectively. As bubbling depth increased from 10 to 80 cm, CO2 absorption ratio increased by about 25%, 22%, and 25% at carbon concentrations of 4.76, 9.52, and 95.24 mmol/L, with the initial pH 10.6 to 9.7 by bubbling CO2, respectively. In range of 10.6-7.0, pH had no significant effect on CO2 absorption ratio (P > 0.05) when carbon concentration is below 9.52 mmol/L, while above 9.52 mmol/L, pH had significant effect on CO2 absorption ratio (P < 0.05). It was found for the first time that the effect of pH on the CO2 absorption ratio was affected by carbon concentration. In addition, equilibrium pH, at which the CO2 partial pressure in the medium equals to that in the air, of medium with different carbon concentrations was also determined. Overall, in microalgae culture for CO2 sequestration, increasing CO2 bubbling depth and keeping higher carbon concentration and higher pH can improve CO2 absorption ratio, which will optimize the biofixation of CO2 by microalgae furthermore.
资助项目National Natural Sciences Foundation of China[31502192] ; National Natural Sciences Foundation of China[31702367]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000501757400022
出版者SPRINGER HEIDELBERG
源URL[http://202.127.146.157/handle/2RYDP1HH/14626]  
专题中国科学院武汉植物园
通讯作者Li, Yeguang
作者单位1.Chinese Acad Sci, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China
2.Yangtze River Sci Res Inst, Hubei Key Lab Water Resources & Ecol Environm, Wuhan 430010, Hubei, Peoples R China
3.Chinese Acad Sci, Innovat Acad Seed Design, Wuhan 430074, Hubei, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Yin, Dacong,Wang, Zhongjie,Wen, Xiaobin,et al. Effects of carbon concentration, pH, and bubbling depth on carbon dioxide absorption ratio in microalgae medium[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2019,26(32):32902-32910.
APA Yin, Dacong.,Wang, Zhongjie.,Wen, Xiaobin.,Ding, Yi.,Hou, Xiaoyu.,...&Li, Yeguang.(2019).Effects of carbon concentration, pH, and bubbling depth on carbon dioxide absorption ratio in microalgae medium.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,26(32),32902-32910.
MLA Yin, Dacong,et al."Effects of carbon concentration, pH, and bubbling depth on carbon dioxide absorption ratio in microalgae medium".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 26.32(2019):32902-32910.

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来源：武汉植物园

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