What is it about?
The study is a first investigation of the feasibility to preserve recycled fillers (e.g. calcium carbonate, kaolin) from deinking paper sludge for newspaper production using an alternative approach respect to the actual methods. Deinking paper sludge was incinerated at 575 °C. The thermal stability of the incinerated sludge (ash) was evaluated by infrared analysis. Subsequently, the resulting ash was bleached by sodium dithionite.
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Why is it important?
The proposed method offers an opportunity for the recycling of inorganic materials from deinking paper sludge and their valorisation.
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This page is a summary of: Alternative Filler Recovery from Paper Waste Stream, Waste and Biomass Valorization, March 2020, Springer Science + Business Media, DOI: 10.1007/s12649-020-01011-7.
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