Ultrasonic deinkings of white ledger were carried out to confirm whether the ink removal fficiency and pulp qualities can be improved by the ultrasonic deinking. The effects of conventional pulping and ultrasonic treatment of white ledger on the ink particle size distribution and ink removal coefficient were compared. The physical properties of paper, energy consumption and effluent qualities were measured. The ultrasonic treatment of white ledger resulted in the ink particle size distribution suitable for flotation. The ink removal efficiency, brightness, breaking length and effluent quality were improved by the ultrasonic deinking. It is expected that the competitiveness of ultrasonic deinking system can be improved by the optimization of treatment condition.
목차
ABSTRACT INTRODUCTION MATERIALS AND METHODS RESULTS AND DISCUSSIONS Ink Particle Size Distribution Ink Removal Efficiency Physical Properties of Paper Energy Consumption Effluent Qualities CONCLUSION LITERATURE CITED
키워드
White ledgerConventionalUltrasonicDekinkingInk removal efficiencyPaper propertiesEnergy consumptionEffluent quality
저자
Jong Myoung Won [ Dept. of Paper Science & Engineering, College of Forest and Environmental Sciences, Kangwon National University, ]