Use of low-grade alternative fuels such as waste coal, tyres, sewage sludge, and biomass fuels (such as wood products, agricultural waste, etc.) in pre-calciners is a feasible option since combustion in pre-calciner takes place at a lower temperature.
Check Also
Compostable Coffee Pod Improves Sustainability and Flavor
New England Coffee’s new capsule made from three biopolymers bypasses landfill and acts as a …