Environmental Remediation and Conversion of Carbon Dioxide (CO2) into Useful Green Products by Accelerated Carbonation Technology

International Journal of Environmental Research and Public Health

Mihee Lim²  Gi-Chun Han²  Ji-Whan Ahn¹ 

[1] Korea Institute of Geoscience and Mineral Resources (KIGAM), 92 Gwahang-no, Yuseong-gu, Daejeon 305–350, Korea;

关键词: carbon dioxide (CO₂);    accelerated carbonation;    municipal solid waste;    paper mill waste;    precipitated calcium carbonate (PCC);    recycled paper;    thermo-gravimetric (TG) analysis;   

DOI  :  10.3390/ijerph7010203

来源: mdpi

【 摘 要 】

This paper reviews the application of carbonation technology to the environmental industry as a way of reducing carbon dioxide (CO₂), a green house gas, including the presentation of related projects of our research group. An alternative technology to very slow natural carbonation is the co-called ‘accelerated carbonation’, which completes its fast reaction within few hours by using pure CO₂. Carbonation technology is widely applied to solidify or stabilize solid combustion residues from municipal solid wastes, paper mill wastes, etc. and contaminated soils, and to manufacture precipitated calcium carbonate (PCC). Carbonated products can be utilized as aggregates in the concrete industry and as alkaline fillers in the paper (or recycled paper) making industry. The quantity of captured CO₂ in carbonated products can be evaluated by measuring mass loss of heated samples by thermo-gravimetric (TG) analysis. The industrial carbonation technology could contribute to both reduction of CO₂ emissions and environmental remediation.

【 授权许可】

CC BY   
© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.