Pulper waste is the result of the recovery of cellulose from recycled paper and cardboard that are pulped and hydrated. The cellulose fibres are a mixture of plastic materials (about two-thirds of the total), wood, paper and other material. Disposal begins with crushing. The plant processes the waste and can recover the iron, separating it from the plastic film and other non-ferrous waste. The scrap is transformed in WDF and fuel for incinerators. This ensures all of the waste is used by transforming it into energy.