Reducing carbon emissions from waste disposal

Although disposing solid waste by incineration greatly reduces the amount of non-recyclable solid waste and generates energy at the same time, it produces carbon dioxide that contributes to greenhouse gas emissions.

A process called calcium looping can be used to capture carbon dioxide emissions from incineration plants. However, calcium looping is energy intensive and expensive.

According to a model constructed by NTU researchers, using fuels produced from recovered waste and leveraging waste-derived calcium sources can reduce the overall cost of this technology. Carbon credits and taxation that incentivise negative emissions also make calcium looping more economically viable.

Read more in the NTU Research Hub.