Cold regeneration using a pneumatic system

Reduction of the amoimt of sand for disposal and of the consumption of new primary sand. Cross-media effects 

The regeneration of sand requires additional energy and causes additional dust emissions and residual dust for disposal. 

The general evaluation of internal regeneration versus external re-use and the corresponding cross-media effects are discussed separately below. 

A waste sand mix of green sand with chemically-bound core sand having the following characteristics 8 - 12 % fines content, 3 - 5 % LOI, 2 % humidity produces a regenerate with the following characteristics  

Furthermore, the technique may be applied for the regeneration of core sand of the COa-water glass type from aluminium foundries. This is discussed separately below. 

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