E3S Web of Conferences (Jan 2023)
Study on CO2 Immobilization in the Environmentally Sound Treatment of Fly Ash
Abstract
To improve the carbonation performance of fly ash, waste incineration fly ash was subjected to high-temperature alkali fusion-hydrothermal and other treatments. The results showed that the material prepared with 8 g of sodium hydroxide, 10 h of maturation, 100 °C and 10 h of hydrothermal temperature had the best ability to isolate carbon dioxide, 521 g/kg, while the fly ash could only adsorb 160 g/kg of carbon dioxide, which improved the isolation ability by 212.5%.