Sewerage sludge - A new raw material for cement production?
Effect of P2O5 and chloride on clinkering reaction
Korean ceramics researchers have recently investigated the potential for using sewerage sludge in cement production. Their research looks at the possibility of effective reutilization of sewage sludge into cement kiln processes. They describe their findings in the online materials science journal AZojomo*.
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.
*AZojomo publishes high quality articles and papers on all aspects of materials science and related technologies. All the contributions are reviewed by a world class panel of editors who are experts in a wide spectrum of materials science. [See http://www.azom.com/Journal%20Editorial%20Board.asp]
AZojomo is based on the patented OARS (Open Access Rewards System) publishing protocol. The OARS protocol represents a unique development in the field of scientific publishing – the distribution of online scientific journal revenue between the authors, peer reviewers and site operators with no publication charges, just totally free to access high quality, peer reviewed materials science. [See http://www.azom.com/azojomo.asp and http://www.azom.com/oars.asp]