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Biosolids in the Cement Industry

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Although a new environmental policy is still to be defined, the U.S. industry is currently looking for renewable sources of energy, and ways to help communities to minimize their wastes. As part of this effort, cement producers have considered the use of dry sewage sludge biosolids produced by Waste Water Treatment Plants (WWTP) as an alternative fuel. Dry biosolids could release an average of 6500 BTU / lb in a combustion process, making them suitable to replace traditional fossil fuels as coal or petroleum coke. On the other hand, this creates a new outlet option for communities and municipalities that have traditionally only had incinerators, landfill or seasonal land application as choices to manage their biosolids.

Keywords: BTU; Cement; alternative fuel; biosolids; calciner; carbon footprint; clinker; coal; combustion; environmental management system; fossil fuel; fuel; kiln

Document Type: Research Article


Publication date: 2010-01-01

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