Waste products can be very appealing alternatives to fossil fuels. In general, alternative fuels are derived from waste or byproducts from agriculture (biomass) and industry:
- coffee husks
- rice husks
- palm nut husks
- scrap plastic, etc.
All of these products can be recycled as alternative fuels and burned safely in cement kilns.
This approach relieves the community of the need to process this waste and helps to limit CO2 emissions. The extremely high temperatures found in cement kilns mean that the waste is totally eliminated and does not leave any residue.
At present, alternative fuels account for 12% of the Group's fuel use across its cement activities.
Lafarge actively participates in the Clean Development Mechanisms (C.D.M.) system initiated under the Kyoto Protocol.
These mechanisms encourage the implementation of best-in-class technologies in developing countries by providing carbon credits to companies which finance sustainable development projects. For example, in:
- Malaysia, 5% of the thermal energy required for the Lafarge cement plants in Rawang and Kanthan is produced from biomass
Morocco, a wind farm provides 50% of the electricity required for the Tétouan cement plant