Preliminary studies on enzymatic deinking

Pala, Helena; Gama, Francisco Miguel; Mota, Manuel

http://hdl.handle.net/10400.8/153

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Authors

Pala, Helena

Gama, Francisco Miguel

Mota, Manuel

Abstract(s)

Results on enzymatic deinking of paper pulps are shown. The process includes paper pulping, with an enzymatic cocktail, followed by flotation and dewatering. Three different wastepaper samples were used and tested. The deinking of the pulp was monitored by image analysis. Physical, mechanical and optical properties of pulp and paper were also determined. The obtained data revealed the effectiveness of the assayed enzyme preparation. However, enzyme use needs further optimisation as paper strenght properties suffered important alteration.

Keywords

Paper pulps Deinking Enzymes

URI

http://hdl.handle.net/10400.8/153

Citation

PALA, H. ; GAMA, F.M. ; MOTA, M. - Preliminary studies on enzymatic deinking. In: 7th International Conference on Biotechnology in the Pulp and Paper Industry. Vancouver: [s.n.], 1998.