Abstract
Reduction of CO2 emission in industries and/or power plants should be a portfolio option; for example, CO2 capture and alkaline solid waste treatment can be combined through an integrated approach, i.e., accelerated carbonation. Gaseous CO2 is fixed as thermodynamically stable solid precipitates, which are rarely released after mineralization. In addition, the proximity between the industrial CO2 emission and the waste residue sources reduces transportation costs. This chapter presents an integrated approach (i.e., accelerated carbonation technology) to capturing CO2 while improving the physico-chemical properties of alkaline solid wastes for the utilization in civil engineering. The carbonation of industrial alkaline wastes, such as steel slags and metalworking wastewater, has been proved to be an effective way to capture CO2.
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