Question

Treatment of used moulding sand so that it regains its original condition and can be used again and again with minimum addition of new sand is called

Answer 1

The correct answer is sand reclamation.  

Sand reclamation is known as the treatment of the utilized molding sand so that it can regain its original state and thus can be used again and again, with least supplementation of the new sand. There are basically three kinds of foundry sand reclamation - Wet reclamation, Dry reclamation, and Thermal reclamation.  

Answer 2

Sand reclamation is the correct answer.

Sand Reclamation can be termed as the process of reconditioning of used sand in a foundry without lowering its original properties, which are particularly required for foundry application. Reclamation process for foundry sand is broadly of two types – Mechanical (Attrition) and Thermal.