Alkaline enzyme assisted deinking of mixed office waste paper with cellulose

Andrés M. Dovale S., Hader H. Alzate G., Jorge A. Velásquez J., Germán C. Quintana M.

    Producción científica: Contribución a una publicación especializadaArtículo


    The enzymatic deinking process was developed in two stages, the first one was the enzyme pretreatment and the second one the subsequent flotation deinking, both conducted at pH = 5.5 and temperature = 55°C. Other process parameters were: enzyme concentration = 1545.96 FPU, air flow rate of 0.5L/min, and Na2SiO3 concentration of 48.65 Be. The optimal deinking conditions were: Enzyme dosage of 0.15%, enzymatic action time of 20 min, flotation consistency of 0.5%, whereby the 70% of essays reached ISO brightness over 70%, with a maximum value of 80% and an average yield of 90%.

    Idioma originalInglés
    Número de páginas8
    Publicación especializadaO Papel
    EstadoPublicada - 1 feb. 2015


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