Deinking of mixed office waste paper by cutinase/surfactant system

被引：0
|
作者：
Wang F. [1 ,2 ]
Long Z. [1 ,2 ,3 ]
Wu M. [1 ,2 ]
Chen J. [1 ,2 ]
Zhang H. [3 ]
机构：
[1] Laboratory of Papermaking, School of Textiles & Clothing, Jiangnan University, Wuxi, 214122, Jiangsu
[2] Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, Jiangsu
[3] Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing, 210037, Jiangsu
来源：
Long, Zhu (longzhu@jiangnan.edu.cn) | 1600年 / Materials China卷 / 68期
关键词：
Cutinase; Flotation deinking; Mixed office waste paper; Surfactant;
D O I：
10.11949/j.issn.0438-1157.20170775
中图分类号：
学科分类号：
摘要：
Cutinase is capable of hydrolyzing soluble esters, insoluble triglycerides and various polyesters, and thus it can hydrolyze the binder in the ink and have the potential to replace lipase in the field of waste paper deinking. Cutinase and self-made surfactant was synergically used in deinking of office waste paper. The deinking effect and optimum process were discussed and compared with the conventional commercial lipase. The results showed that the optimal effect of cutinase could be achieved under the conditions of enzyme dosage of 10 U•g-1, enzyme treatment time of 30 min, enzyme treatment temperature of 50℃ and surfactant dosage of 0.2%. Compared with lipase/surfactant and surfactant deinking, the brightness and ink removal rate of paper after cutinase deinking were higher and the mechanical strength of paper was also greatly improved. By comparison of the paper performance and scanning electron microscopy (SEM) analysis, the deinking effect of cutinase was better than that of lipase. © All Right Reserved.
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页码：4750 / 4755
页数：5
相关论文
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