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Fractionation of process water in thermomechanical pulp mills.

Persson, Tobias LU ; Krawczyk, Holger LU ; Nordin, Anna-Karin LU and Jönsson, Ann-Sofi LU (2010) In Bioresource Technology 101(11). p.3884-3892
Abstract
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 10kg of suspended matter, more than 0.3kg of extractives, 11kg of hemicelluloses and 8kg 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... (More)
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 10kg of suspended matter, more than 0.3kg of extractives, 11kg of hemicelluloses and 8kg 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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Bioresource Technology
volume
101
issue
11
pages
3884 - 3892
publisher
Elsevier
external identifiers
  • wos:000275999800013
  • pmid:20137925
  • scopus:76749124293
ISSN
1873-2976
DOI
10.1016/j.biortech.2009.12.142
language
English
LU publication?
yes
id
8472ecf7-6cee-481a-87f7-d3ec2fae8bf7 (old id 1552862)
date added to LUP
2010-03-08 13:18:35
date last changed
2018-05-29 10:56:09
@article{8472ecf7-6cee-481a-87f7-d3ec2fae8bf7,
  abstract     = {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 10kg of suspended matter, more than 0.3kg of extractives, 11kg of hemicelluloses and 8kg 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.},
  author       = {Persson, Tobias and Krawczyk, Holger and Nordin, Anna-Karin and Jönsson, Ann-Sofi},
  issn         = {1873-2976},
  language     = {eng},
  number       = {11},
  pages        = {3884--3892},
  publisher    = {Elsevier},
  series       = {Bioresource Technology},
  title        = {Fractionation of process water in thermomechanical pulp mills.},
  url          = {http://dx.doi.org/10.1016/j.biortech.2009.12.142},
  volume       = {101},
  year         = {2010},
}