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Pulp and Paper Industry

During the production of paper, pulping is the step in which cellulose fibers are broken apart and most of the lignin is removed. The residual lignin covalently bound to carbohydrate moieties imparts dark brown color to the pulp, that must be bleached before paper production. A multistage bleaching process is used to remove the residual lignin using chlorine (C), chlorine dioxide (D), and NaOH treatments, resulting in the production of highly persistent and bioaccumulative organochlorines. Obtaining TCF (Totally Chlorine Free) pulps, using nonchlorine chemical reagents such as oxygen, hydrogen peroxide, or ozone, is not as effective as chlorine reagents. Use of microbial enzymes may provide a simple, cost effective, and environmentally friendly method for improving pulp properties and waste removal and to reduce the usage of traditional processes of bleaching and pitch removal. Among others enzymes, laccases can be used in the pulp and paper industry in a number of ways, including pulp and paper mill effluent detoxification.

 

  • Lignin degradation
  • Pitch control
  • Deinking
  • Grafting on fibers to improve properties

CONTACT


Address: Salita Arenella, 9 - 80129 Naples (Italy)
Email: info@biopox.com

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