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Treatment of effluent from alkali extraction with ultrafiltration and reverse osmosis

Jönsson, Ann-Sofi LU (1989) In Nordic Pulp & Paper Research Journal 4(1). p.33-37
Abstract
Effluent from alkali extraction of chlorinated pulp was treated with ultrafiltration (UF). Three different ultrafiltration (UF) membranes were tested. The permeate from one of the UF membranes was further treated with reverse osmosis (RO). Titration curves for the permeates from the different UF and R0 membranes were determined. The concentration of charged compounds was calculated from the titration data and compared with the COD and AOX of the permeates. The retention of COD and AOX was between 50 and 90% for the UF membranes, whereas the retention of carboxylic acid groups was considerably lower, 15-45%. During the R0 treatment the retention of all compounds was found to be very high. For the densest R0 membrane the retention of AOX and... (More)
Effluent from alkali extraction of chlorinated pulp was treated with ultrafiltration (UF). Three different ultrafiltration (UF) membranes were tested. The permeate from one of the UF membranes was further treated with reverse osmosis (RO). Titration curves for the permeates from the different UF and R0 membranes were determined. The concentration of charged compounds was calculated from the titration data and compared with the COD and AOX of the permeates. The retention of COD and AOX was between 50 and 90% for the UF membranes, whereas the retention of carboxylic acid groups was considerably lower, 15-45%. During the R0 treatment the retention of all compounds was found to be very high. For the densest R0 membrane the retention of AOX and compounds with carboxylic acid groups was higher than 99%. The retention of COD was 96%. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nordic Pulp & Paper Research Journal
volume
4
issue
1
pages
33 - 37
publisher
Arbor Publishing AB
ISSN
0283-2631
DOI
10.3183/NPPRJ-1989-04-01-p033-037
language
English
LU publication?
yes
id
f7b51a51-e236-43c4-8433-42745ae08805 (old id 3918234)
date added to LUP
2013-07-08 09:47:45
date last changed
2016-04-16 03:06:11
@article{f7b51a51-e236-43c4-8433-42745ae08805,
  abstract     = {Effluent from alkali extraction of chlorinated pulp was treated with ultrafiltration (UF). Three different ultrafiltration (UF) membranes were tested. The permeate from one of the UF membranes was further treated with reverse osmosis (RO). Titration curves for the permeates from the different UF and R0 membranes were determined. The concentration of charged compounds was calculated from the titration data and compared with the COD and AOX of the permeates. The retention of COD and AOX was between 50 and 90% for the UF membranes, whereas the retention of carboxylic acid groups was considerably lower, 15-45%. During the R0 treatment the retention of all compounds was found to be very high. For the densest R0 membrane the retention of AOX and compounds with carboxylic acid groups was higher than 99%. The retention of COD was 96%.},
  author       = {Jönsson, Ann-Sofi},
  issn         = {0283-2631},
  language     = {eng},
  number       = {1},
  pages        = {33--37},
  publisher    = {Arbor Publishing AB},
  series       = {Nordic Pulp & Paper Research Journal},
  title        = {Treatment of effluent from alkali extraction with ultrafiltration and reverse osmosis},
  url          = {http://dx.doi.org/10.3183/NPPRJ-1989-04-01-p033-037},
  volume       = {4},
  year         = {1989},
}