A METHOD FOR REDUCING THE LEVEL OF INTERFERENCE CHEMICALS IN THE WATER CIRCULATION OF WOOD-BASED FIBRE SUSPENSION PROCESSES

摘要

The invention relates to a method for reducing the amount of interferencesubstances in the water circulations of processesinvolving wood-based fibre suspensions by binding the disturbance substancesto the fibres by means of cationic starch. Theamount of the said starch added to the fibre suspension is approximately 0.04-0.5 % of the fibre dry weight.