Fractionation of process water in thermomechanical pulp mills

被引：36

作者：

Persson, T. ^{[1
]}

Krawczyk, H. ^{[1
]}

Nordin, A. -K. ^{[1
]}

Jonsson, A. -S. ^{[1
]}

机构：

[1] Lund Univ, Dept Chem Engn, SE-22100 Lund, Sweden

来源：

BIORESOURCE TECHNOLOGY | 2010年 / 101卷 / 11期

关键词：

Galactoglucomannans; Thermomechanical pulp; Microfiltration; Ultrafiltration; Nanofiltration; SPRUCE WOOD; RENEWABLE SOURCES; BIODEGRADABLE POLYMERS; NORWAY SPRUCE; HOT-WATER; GALACTOGLUCOMANNAN; FILMS; EXTRACTION;

D O I：

10.1016/j.biortech.2009.12.142

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

In this work process water from a thermomechanical pulp mill was divided into five fractions by filtration and membrane filtration. Suspended matter was mainly isolated in the retentate from the drum filter, extractives in the microfiltration retentate, hemicelluloses in the ultrafiltration retentate and lignin in the nanofiltration retentate. The final water fraction was of fresh water quality. For each tonne of pulp produced, about 10 kg of suspended matter, more than 0.3 kg of extractives, 11 kg of hemicelluloses and 8 kg of aromatic compounds (lignin) could be recovered from the drum filtration retentate, the microfiltration retentate, the ultrafiltration retentate and the nanofiltration retentate, respectively. About 40% of the treated process water could be recovered as fresh water. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3884 / 3892

页数：9

共 25 条

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[2]

Cheryan M., 1998, Ultrafiltration and Microfiltration Handbook

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