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Sewerage Sludge. A New Raw Material For Cement Production?

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Sep 27 2005

In an article published under AZojomo, the novel Open Access Rewards System (OARS), Korean ceramics researchers have investigated the potential for using sewerage sludge in cement production.

The research looks at the possibility of effective reutilization of sewage sludge into cement kiln processes. Increasing environmental regulations on marine dumping means new disposal methods must be found for sewerage sludge.

The use of sewage sludge as a raw material for the production of cement is an effective method, since the organic components may serve as fuel while the inorganic components such as SiO₂, Al₂O₃, Fe₂O₃ components offer as the raw material for the clinker. However, one of the obstacles to this application to cement kilns is the relatively high P₂O₅ and Cl content in sewage sludge. In this study the effect of P₂O₅ and chloride on clinker reaction is investigated.

The article is available to view at http://www.azom.com/Details.asp?ArticleID=3023

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