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Making cement from biomass energy
Posted on June 12, 2008
Lafarge North America Inc., the continent's largest maker of cement, hasn't made many friends within environmental groups. In Ontario, for example, the company has aggressively pursued a plan to burn old tires to provide energy for its cement-making operations. While there's much debate over the value of doing this -- some, including the U.S. Department of Energy, argue that burning rubber tires is better environmentally than burning coal or oil -- clearly the idea of burning tires rather than recycling them into other useful products is frowned upon by many.Perhaps in an attempt to green up ...
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