Cutting-edge innovations in glass recycling to ensure its endless recycling cycle

Unlike many materials, glass doesn't degrade when it's recycled – in principle, a glass bottle can be melted down and remade into a new glass bottle indefinitely, with no loss of quality. In practice, however, achieving that "endless recycling cycle" depends entirely on how well glass is sorted before it reaches the furnace, since contamination from other materials – ceramics, stones, metals, or even glass of the wrong colour – can compromise an entire batch.

This is where recent technological innovations are making the biggest difference. Advanced sensor systems can now identify and separate glass not just by colour, but by detecting contaminants that are visually almost indistinguishable from glass – ceramic fragments, heat-resistant glass (which has a different melting point and can cause defects), and opaque materials that would otherwise end up mixed in with usable cullet.

ECOGLASS, a state-of-the-art optical sorter

PICVISA's ECOGLASS system represents this new generation of sorting technology, combining multiple sensor types to classify glass with a level of precision that was simply not achievable with older mechanical or manual sorting methods. By removing contaminants and accurately separating glass by colour, ECOGLASS produces cullet of a quality high enough to be used in large proportions in new glass production – directly supporting the closed-loop recycling that glass is uniquely capable of.

As more facilities adopt this kind of sorting technology, the practical reality of glass recycling moves closer to its theoretical potential: a material that, once properly separated from contaminants, really can be reused over and over again without degrading – reducing both the energy required to produce new glass and the demand for virgin raw materials.

Discover ECOGLASS optical sorting