Improved water quality by process renewal in a pulp and paper mill
The Kaukas pulp and paper mill on southern Lake Saimaa was investigated to evaluate the environmental benefits of process renewal, i.e. the substitution of chlorine by chlorine dioxide in the bleaching and the modernisation of the biological effluent treatment. A comparative study of the mill efflue...
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Boreal Environment Research Publishing Board
2024
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Online Access: | http://hdl.handle.net/10138/577991 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/577991 2024-09-15T18:00:10+00:00 Improved water quality by process renewal in a pulp and paper mill Kaplin, C. Hemming, J. Holmbom, B. 2024-06-27T13:44:29Z 239-246 application/pdf http://hdl.handle.net/10138/577991 eng eng Boreal Environment Research Publishing Board Boreal Environment Research 1239-6095 1797-2469 3 2 http://hdl.handle.net/10138/577991 Suomen ympäristökeskus CC BY 4.0 openAccess Artikkeli lehdessä 2024 ftunivhelsihelda 2024-08-21T23:48:04Z The Kaukas pulp and paper mill on southern Lake Saimaa was investigated to evaluate the environmental benefits of process renewal, i.e. the substitution of chlorine by chlorine dioxide in the bleaching and the modernisation of the biological effluent treatment. A comparative study of the mill effluent and the catchment water area was performed before (1991) and after (1993/1995) the changes. The chemical composition of the mill effluent was analysed with special emphasis on chlorinated organics and wood extractives. The same compounds were analysed in lake waters with respect to distribution and persistence. The study revealed a considerable decrease in the concentrations of chlorinated organics both in the mill discharge and in the lake. Most wood extractives also decreased in the effluent. However, the discharge of some wood extractives, such as sitosterol, was not significantly affected by the changes. Article in Journal/Newspaper Boreal Environment Research HELDA – University of Helsinki Open Repository |
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Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
description |
The Kaukas pulp and paper mill on southern Lake Saimaa was investigated to evaluate the environmental benefits of process renewal, i.e. the substitution of chlorine by chlorine dioxide in the bleaching and the modernisation of the biological effluent treatment. A comparative study of the mill effluent and the catchment water area was performed before (1991) and after (1993/1995) the changes. The chemical composition of the mill effluent was analysed with special emphasis on chlorinated organics and wood extractives. The same compounds were analysed in lake waters with respect to distribution and persistence. The study revealed a considerable decrease in the concentrations of chlorinated organics both in the mill discharge and in the lake. Most wood extractives also decreased in the effluent. However, the discharge of some wood extractives, such as sitosterol, was not significantly affected by the changes. |
format |
Article in Journal/Newspaper |
author |
Kaplin, C. Hemming, J. Holmbom, B. |
spellingShingle |
Kaplin, C. Hemming, J. Holmbom, B. Improved water quality by process renewal in a pulp and paper mill |
author_facet |
Kaplin, C. Hemming, J. Holmbom, B. |
author_sort |
Kaplin, C. |
title |
Improved water quality by process renewal in a pulp and paper mill |
title_short |
Improved water quality by process renewal in a pulp and paper mill |
title_full |
Improved water quality by process renewal in a pulp and paper mill |
title_fullStr |
Improved water quality by process renewal in a pulp and paper mill |
title_full_unstemmed |
Improved water quality by process renewal in a pulp and paper mill |
title_sort |
improved water quality by process renewal in a pulp and paper mill |
publisher |
Boreal Environment Research Publishing Board |
publishDate |
2024 |
url |
http://hdl.handle.net/10138/577991 |
genre |
Boreal Environment Research |
genre_facet |
Boreal Environment Research |
op_relation |
Boreal Environment Research 1239-6095 1797-2469 3 2 http://hdl.handle.net/10138/577991 Suomen ympäristökeskus |
op_rights |
CC BY 4.0 openAccess |
_version_ |
1810437322817142784 |