Composition analysis for the potential regeneration of spent foundry sands

Novel approaches for the analysis of chemical composition of spent foundry sand (SFS).

The classification of SFS as a hazardous waste material by the South African Environmental Waste Management Regulation Act makes SFS disposal costly.

In addition, the current process used for chemical analysis, the Toxicity Characteristic Leaching Procedure (TCLP), is time consuming and this affects the turn around time of SFS regeneration.

Together with The Innovation Hub and the Department of Science and Technology, our client was seeking novel approaches to analyse the chemical composition of SFS. The objective was to reduce the time, damage and cost of analysis from the current processes that make use of leaching technologies.

RIIS brought to our client six viable challenge solutions that were innovative in meeting the challenge objectives and helped uncover the operational and economic benefits that an accelerated process could have for the foundry industry.

All challenge solutions were based on the use of commercial automated mineralogy equipment.



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