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Recovery and recycling of gypsum and paper from plasterboard for the demolition and from scrap of new production

Patent Technology that recycle plaster and plasterboard paper that are not exploitable any longer.Let’s transform it into a resource.  Plaster recycling activity is carried out through a series of groundbreaking and highly efficient technological procedures. These processes are based on the separation of plaster from the cardboard and on the complete recycling of both materials.

The recycled plaster dust is a high quality powder, almost totally free from cardboard and ready to be reused in a new cycle to produce plasterboard sheets (while keeping the same chemical and physical characteristics of a sheet made of virgin material) or it can be used to level off pavement as an alternative to hydrated lime, or still, it can be used in the agricultural field as the material for soil conditioning, amending and fertilizing, according to real necessity.

The productive process consists of a first phase in which the waste volume is reduces. Then this reduced waste is put into a machine that mechanically separates plaster from paper. Consequently the picked material goes through a hopper that sifts plaster, this last is  made a variable granulometry dust, and pours it in the tipper as the final product: this way the 98% of the original plaster has been recycled (cardboard contained is less than 0.05%).

A further passage has an additional effect on paper, smoothening it from residual plaster: the final result is a fine plaster powder that brings the recycling to 100% of conferred waste. Even the now clean cardboard can be reused in any productive process concerning paper, except for its application in the food industry, or it can be sent to recycle sites.