Enzymatic versus chemical deinking of non-impact ink printed paper

被引:76
作者
Pala, H [1 ]
Mota, M [1 ]
Gama, FM [1 ]
机构
[1] Univ Minho, Ctr Engn Biol, P-4719 Braga, Portugal
关键词
paper pulps; non-impact inks; deinking; enzymes; image analysis;
D O I
10.1016/j.jbiotec.2003.10.016
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Enzymatic versus chemical deinking is examined for MOW and photocopy prints. Several enzymatic preparations and two fibre/ink particle separation methods are tested. Deinking was monitored by image analysis and standard pulp and paper characterisation procedures. The effectiveness of the fibre/ink particle separation method depends on the ink particle's size: for smaller particles a washing step is recommended whereas for larger particles, the use of flotation is necessary. The enzymatic treatment is a competitive alternative for MOW and photocopy paper deinking. However, the process requires the selection of an adequate enzymatic preparation for each paper grade. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:79 / 89
页数:11
相关论文
共 39 条
[1]  
[Anonymous], [No title captured]
[2]  
Azevedo MAD, 1999, J PULP PAP SCI, V25, P317
[3]   INTERLABORATORY TESTING OF METHODS FOR ASSAY OF XYLANASE ACTIVITY [J].
BAILEY, MJ ;
BIELY, P ;
POUTANEN, K .
JOURNAL OF BIOTECHNOLOGY, 1992, 23 (03) :257-270
[4]  
Bajpai P, 1998, TAPPI J, V81, P111
[5]  
Berlin GA, 1997, ABSTR PAP AM CHEM S, V213, P63
[6]   AMYLASES, ALPHA AND BETA [J].
BERNFELD, P .
METHODS IN ENZYMOLOGY, 1955, 1 :149-158
[7]  
BHAT GR, 1991, TAPPI J, V74, P151
[8]  
DENG Y, 2000, TAPPI J, V83, P61
[9]  
Drabek O, 1998, J PULP PAP SCI, V24, P116
[10]   EFFECT OF SURFACTANT AND PARTICLE-SIZE REDUCTION ON HYDROLYSIS OF DEINKING SLUDGE AND NONRECYCLABLE NEWSPRINT [J].
DUFF, SJB ;
MORITZ, JW ;
CASAVANT, TE .
BIOTECHNOLOGY AND BIOENGINEERING, 1995, 45 (03) :239-244