A method for treating surplus foundry sand by composting and a compost

摘要

The present application provides a method for treating surplus foundry sand by composting, the method comprising providing surplus foundry sand, providing manure material, mixing the surplus foundry sand and the manure material to obtain a compost mixture, and composting the compost mixture for a sufficient time to obtain cleaned surplus foundry sand. The present application also provides a compost comprising a mixture of surplus foundry sand and manure material, and a soil product obtained with the method.