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Deinking of Electrostatic Wastepaper with Cellulolytic Enzymes and Surfactant in Neutral pH  

Eom, Tae-Jin (Deptment of Wood Science and Technology, College of Agriculture and Life Science, Kyungpook National University)
Kim, Kang-Jae (Deptment of Wood Science and Technology, College of Agriculture and Life Science, Kyungpook National University)
Yoon, Kyoung-Dong (Deptment of Wood Science and Technology, College of Agriculture and Life Science, Kyungpook National University)
Publication Information
Journal of Korea Technical Association of The Pulp and Paper Industry / v.39, no.5, 2007 , pp. 12-19 More about this Journal
Abstract
Enzymatic deinking method can avoids the alkaline environment as usual required in chemical deinking, which consequently cuts chemical costs and reduced the white water pollution. The electrostatic wastepaper was dinked with commercial cellulolytic enzymes and surfactant in neutral pH and the effectiveness of deinking and the physical properties of deinked pulp were evaluated. The disintegrating efficiency of the electrostatic wastepaper in neutral pH was enhanced with enzyme treatments. Although the freeness of deinked pulp with enzymes was higher than that of deinked pulp with chemical de inking agents, the brightness of the enzymatic deinked pulp was slightly lower than that of the chemical deinked pulp. But, by additions of nonionic surfactants, the brightness of deinked pulp was increased with less residual ink particles and mechanical properties of enzymatic deinked pulp was improved compared to the deinked pulp of conventional alkaline method.
Keywords
deinking; commercial cellulolytic enzymes; neutral pH; surfactant;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 2
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1 Eom, T.J., Ow, S.K., Enzymatic deinking method of old news paper, Japan Tappi 45(12): 1377-1382 (2004)
2 Dorris, G.M., Page, M., Deinking of toner printed papers, J. of Pulp and Paper Science 23(5): 206-215 (1997)
3 Jeffries T.W., Klungness, J.H., Sykes, M.S., Rutledge, C.K.R., Comparison of enzyme enhanced with conventional deinking of xerographic and lazer printed paper. Tappi J. 77(4): 173-179 (1994)
4 Santosh,V., Anil, L., Biodeinking of mixed office waste paper by alkaline active celluloses from alkalotolerant Fusarium sp., Enzyme and Microbial Technology 32: 236-245 (2003)   DOI   ScienceOn
5 Marchessault ,R.H., Debzi, E.M., Excoffer, G., Deinking of xerographic prints assisted by steam explosion, Pulp and Paper Canada 98: 59-62 (1997)
6 Prasad, D.Y., Heitmann, J.A., Joyce, T.W., Enzyme deinking of colored offset print. Nor. Pulp Paper Res. J. 2: 284-286 (1993)
7 Pinder, K.L., Magnetic deinking of office wastepaper, Pulp and Paper Canada 97(11): 28-30 (1996)
8 Elegir, G., Panizza, E., Canetti, M., Neutal enzyme assisted deinking of xerographic office waste with a cellulose/amylase mixture, Tappi J. 83: 11-17 (2000)
9 Eom, T.J., Kang, S.H., Lee, J.M., Park, S.B., Recycling of waste paper with alkaline cellulolytic enzymes, J. Korea Tappi 36(1): 30-36 (2004)   과학기술학회마을
10 Eom, T.J., Micronization and deinking of laser printed ink with polysaccharides, J. of Korea Tappi 27(3): 61-67 (1995)
11 Norman, J. C., Sell, Nancy, J., Daneiski, M.. Deinking laser print paper using ultrasound, Tappi J. 77(3): 151-158 (1994)
12 Qien , Y., Goodell, B., Deinking of laser printed copy paper with a mediated free radical system, Bioresource technology 96(8): 913-920 (2005)   DOI   ScienceOn
13 Bajpai, P., Bajpai, P.K., Kondo, R., Biotechnology for environmental protection in the pulp and paper industry. Springer, Berlin, Germany (1999)
14 Mutje, P., Roux, J.C., Delpech, F., Carrasco, F., Flotatio deinking of recovered paper printed with laser inks, Progress in paper recycling 6(3): 48-55 (1997)
15 Gubitz, G.M., Mansfield,S.D., Bohm,D., Sadler,J.N., Effect of endoglucanases and hemicellulases in magnetic andflotation deinking of xylographic and laser plinted papers. J. Biotecnol. 65: 209-215 (1998)