气候变化领域集成服务门户(CCPortal): Maximizing Marine Carbon Removal by Coupling Electrochemical and Biological Methods

CCPortal

DOI	10.1021/acs.estlett.4c00107
	Maximizing Marine Carbon Removal by Coupling Electrochemical and Biological Methods
	Hibbeln, Charles F.; Marsh, Paul; Myers, Christopher R.; Valdez, Peter J.; Edmundson, Scott J.; Subban, Chinmayee V.
发表日期	2024
ISSN	2328-8930
起始页码	11
结束页码	5
卷号	11 期号:5
英文摘要	Integrated development of carbon removal strategies offers the possibility of lowering CO2 removal costs and enabling their widespread deployment. Here, we examine the feasibility and benefits of coupling technological and nature-based marine carbon removal strategies. A bench-scale bipolar membrane electrodialysis (BPMED) unit is used to generate acidity and alkalinity from natural seawater. Utilization of alkalinity for CO2 mineralization is widely researched, but sustainable use of the acid remains a challenge. We show that the acid can be used to enhance photosynthesis in the fast-growing marine phytoplankter Picochlorum celeri. Additions of ca. 900 mu M H-eq(+) from BPMED effluent acid increased algal productivity up to 3-fold, by shifting the seawater-carbonate equilibrium toward CO2. A high-level CO2 emissions analysis based on experimental data shows that using BPMED acid for marine algae cultivation results in sequestration of -6.1 kg of CO2/kg of HCl, whereas transport of acid for alternative uses accounts for emission of +0.41 kg of CO2/kg of HCl. The analysis boundary excluded seawater pretreatment and BPMED acid production and any processing beyond delivery of dewatered algae. Through further optimization of algal species, growth conditions, acid addition rates, etc., the combined electrochemical-biological approach has the potential to achieve higher net CO2 removal.
英文关键词	marine carbon dioxide removal (mCDR); chemical wasteupcycling; algae cultivation; bipolar membrane electrodialysis; carbon dioxide removal (CDR)
语种	英语
WOS研究方向	Engineering ; Environmental Sciences & Ecology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:001200218800001
来源期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/297116
作者单位	United States Department of Energy (DOE); Pacific Northwest National Laboratory; United States Department of Energy (DOE); Pacific Northwest National Laboratory; United States Department of Energy (DOE); Pacific Northwest National Laboratory; University of Washington; University of Washington Seattle
推荐引用方式 GB/T 7714	Hibbeln, Charles F.,Marsh, Paul,Myers, Christopher R.,et al. Maximizing Marine Carbon Removal by Coupling Electrochemical and Biological Methods[J],2024,11(5).
APA	Hibbeln, Charles F.,Marsh, Paul,Myers, Christopher R.,Valdez, Peter J.,Edmundson, Scott J.,&Subban, Chinmayee V..(2024).Maximizing Marine Carbon Removal by Coupling Electrochemical and Biological Methods.ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,11(5).
MLA	Hibbeln, Charles F.,et al."Maximizing Marine Carbon Removal by Coupling Electrochemical and Biological Methods".ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 11.5(2024).