Lafarge Canada’s latest initiative with Victoria’s Capital Regional District (CRD) on Vancouver Island has implemented a creative new solution to maximise the potential of the region’s circular economy. The company has announced a long-term contract with CRD to provide a reliable, steady and safe supply of biosolids to use as fuel in cement manufacturing at the Richmond plant.
Supported by the government of BC’s CleanBC Industry Fund, Lafarge Canada’s Western Canadian Geocycle team received US$753 000 in funding for the capital investment in a silo designed to co-process biosolids as low carbon fuel for the Richmond cement kiln.
The silo, and associated systems, will receive, store, and feed biosolids into the kiln. Biosolids, when replacing coal, will reduce GHGs by approximately 5 000 tpy of CO2e. The biosolids will also increase TSR (Thermal Substitution Rate) by approximately 2.5%. Current estimates show between 5 000 to 7 000 tpy of material to be co-processed at the facility. This will enhance the capability of the new low carbon fuel system that is currently handling over 100 000 t of avoided landfill material.
The replacement of fossil fuels with lower carbon fuels, such as biosolids, is one of a limited number of means available to the cement sector to reduce its carbon footprint. As such, Lafarge Canada recognises the urgency of identifying and implementing opportunities to co-process non-fossil fuel materials, thereby reducing GHG emissions and capitalising on the circular economy. CRD has declared a ‘climate emergency’, therefore, co-processing is one of the pillars of reducing CO2 effects from the biosolids.
Read the article online at: https://www.worldcement.com/the-americas/19062020/lafarge-canada-to-use-biosolids-at-richmond-plant/