Mitigation of carbon dioxide by accelerated sequestration in concrete debris

摘要: Abstract Carbon capture and storage is becoming increasingly feasible. This study provides a novel quantitative analysis of the global CO2 mitigation potential through accelerated carbon sequestration in concrete debris separated from construction demolition waste. We consider economic environmental tradeoff. Based on data collection 14 large regions countries, we created method to estimate project generation debris, recycling carbonation rates, cost. The overall was more than 3.0 ( ± 0.6) billion tonnes (Bt) 2017 worldwide, mainly emerging countries such as China India. has mitigate 62.5 8.9) million (Mt) under optimal conditions determined by pressure, temperature, humidity, time, concentration, size. Our scenario reveals that cumulative could be high Bt between 2018 2035, which equals approximately one third total emissions fuel combustion 2016. In our scenarios, benefits storing are recycled aggregate rather sequestration, but also current price major markets. These findings highlight an effective practical approach reuse well enhancing benefits. helpful better manage fast-growing need for bridging gap research application.