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Waste not want not

IN an innovative initiative Castle Cement have recently awarded a landfill tax credit scheme grant to the environmental body Viridis. The grant will fund research into new wastes that could be used as alternative raw materials in the production of cement.

According to Castle Cement, the high-temperature process conditions required to combine the oxides of calcium, silicon, aluminium and iron to make cement are ideal for safely recovering waste. As a result, the use of wastes generated from sources such as foundries and the demolition, brick and ceramic industries could reduce the environmental impact of cement production while diverting these wastes away from landfill sites.

Benefits of such a scheme would include a reduction in the quantity of industrial wastes disposed to landfill, reduced consumption of primary raw material resources, and more efficient use of material resources.

 

Peter McKendry, project manager for Millennium Science & Engineering, who are undertaking the research, explained: ‘The study will identify potentially suitable waste resources based on a combination of chemistry, quantities and location.’

Castle Cement’s environment manager, Iain Walpole, added: ‘This initiative will help the cement and construction industries to become more resource efficient…and will encourage a reduction in the environmental impacts associated with waste disposal by diverting wastes from landfill.’

The research is expected to be completed by the end of the year.

 

 

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