Mineral sequestration of CO2 in suspensions containing mixtures of fly ashes and desulphurization waste

作者：Uliasz Bochenczyk Alicja^*

来源：Gospodarka Surowcami Mineralnymi-Mineral Resources Management, 2010, 26(4): 109-118.

• Fly ashes
• desulphurization products
• carbon dioxide
• pollutant leaching
• mineral sequestration

Mineral sequestration of CO2 in wastewater suspensions is a method which allows both for economic applications of waste and for the reduction of anthropogenic emissions of carbon dioxide at the same time. It can also be used as a method of waste processing which decreases the leaching of some pollutants. The research was conducted using two kinds of aqueous suspensions of fly ashes and desulphurization waste mixtures from the Siersza and Laziska power plants. A theoretical binding capacity of the mixtures was calculated. The results of research into CO2 binding in aqueous solutions of fly ashes and desulphurization waste mixtures and into the influence of subjecting them to the effects of carbon dioxide on the leachability of pollutants were presented. Based on thermogravimetric research the degree of CO2 binding in the analyzed suspensions was calculated. The research showed an influence of mineral carbonation on the decrease in certain pollutants' leaching from the discussed suspensions subjected to the effects of CO2.

• 出版日期2010