PLANET CASE STUDY
“Using waste from other industries as fuel for our cement kilns is an excellent way both of contributing to the circular economy and of reducing CO2 emissions.”
Graham Cooper, sustainability director at Tarmac
Using other people’s waste conserves natural resources and reduces the amount of waste sent to landfill, but it also allows us to replace fossil fuels with lower carbon alternatives.
Cement manufacture is energy intensive and has traditionally relied on coal and petroleum coke as a fuel source. The cement manufacturing process offers the unique benefit of ‘co-processing’ waste derived fuels – where the energy from the waste drives the chemical reaction that makes cement while the minerals in the material are simultaneously incorporated into the cement product. Unlike other energy recovery options, co-processing is highly efficient, and no residue is produced, ensuring that all the mineral content is recycled into a new and durable construction material.