BIO-MODIFICATION OF EUCALYPTUS CTMP PULP WITH DIFFERENT WHITE-ROT FUNGI
Eucalyptus chemi-thermomechanical pulp was modified with three types of white-rot fungi in a stationary culture condition. The lignin loss, strength properties, optical properties and bleachability of the treated pulp were determined to compare the effect of bio-modification by different fungal strains. The results show that lignin removal by white-rot fungus 19-6 is higher than that of the PC-1767 and 19-6 (w), and the 19-6 and PC-1767 can improve pulp strength significantly. The data obtained indicates that 19-6 is the most efficient strain for bio-modification of eucalyptus CTMP pulp fibers. At a freeness level of about 320 mL, compared to the control pulp, the tensile index, tear index and internal bonding for 19-6 treatment increased by 27.1%, 37.8% and 39.9%, respectively. The brightness of fungal treated pulp was reduced by 20%. However, high brightness levels could be attained after bleaching using a two-step bleach sequence.
eucalyptus CTMP pulps white-rot fungi Bio-modification Comparison
Yang Qifeng Zhan Huiyu Wang Shuangfei Li Kecheng Fu Shiyu
State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 51 State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 51 Pulp & Paper Institute, Guangxi University, Nanning 530004, China Chemical Engineering Department and Limerick Pulp and Paper Centre, University of New Brunswick, Can
国际会议
广州
英文
347-350
2006-11-08（万方平台首次上网日期，不代表论文的发表时间）