Pengaruh Penambahan SO2 terhadap Bubur Pulp yang Telah Diputihkan pada Proses Pulp Machine di Pt. Toba Pulp Lestari, Tbk – PORSEA

Abstract

The objective of this study was to find out the effect of Sulfur Dioxide (SO2) adding on the bleached pulp in the bleaching process that was going to be sent to the pulp machine.In this unit stage, the pulp that was received from the bleaching unit would be processed and printed into dried pulp layers. The layers, this, would be processed into bales which are ready to sell in the market. The main function of the pulp machine process is to remove as much as possible the water lies beneath the pulp without damaging the pulp layers. Beside the water removing, it was necessary to do pH lkevel controlling for the level of 5 - 7. The adding of SO2 was aimed to control the pH level of the pulp to meet the expected pH level in the final product of the pulp layers.