Laboratory simulator for splash zone biofouling and corrosion in paper machine environment

Leena Carpen, Laura Raaska, Kirsi Kujanpää, Katri Mattila, Päivi Uutela, Mirja Salkinoja-Salonen, Tero Hakkarainen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

A novel laboratory simulator developed for pitting studies in chlorine dioxide bleaching was modified to investigate the effects of microbe containing environments in the splash zones of paper and board machines. Layers of dried chemical pulp were used to simulate deposits in splash zones. Artificial white water was prepared using as main components stone groundwood (sgw) and chemical pulp transferred from a paper machine. A consortium of aerobic as well as anaerobic bacteria typical for paper and board machine environments was used. Biofilm formation and the electrochemical behavior of stainless steel were studied. Open circuit potentials were recorded and polarization measurements were performed. The biofilms formed were analyzed by microbial cultivation and by epifluorescence microscopy. Sulfur compounds as well as the chloride and oxalate contents of the artificial white water in the course of the experiments were analyzed using capillary electrophoresis. Also some of the layers of chemical pulp closest to the metal surface were analyzed after the test. The results showed that the developed laboratory simulator was a valuable and versatile tool for studying the microbiological and chemical effects on pitting corrosion of stainless steel in conditions simulating the splash zone areas of paper and board machines.
Original languageEnglish
Title of host publication10th International Symposium on Corrosion in the Pulp and Paper Industry (10th ISCPPI). Helsinki, 21 - 24 August 2001
Subtitle of host publicationVolume 2
EditorsTero Hakkarainen
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Pages587-598
ISBN (Print)951-38-5721-2
Publication statusPublished - 2001
MoE publication typeA4 Article in a conference publication
Event10th International Symposium On corrosion in the Pulp and Paper Industry, ISCPPI - Helsinki, Finland
Duration: 21 Aug 200124 Aug 2001

Publication series

NameVTT Symposium
PublisherVTT
Number215

Conference

Conference10th International Symposium On corrosion in the Pulp and Paper Industry, ISCPPI
Abbreviated title10th ISCPPI
CountryFinland
CityHelsinki
Period21/08/0124/08/01

Fingerprint

Chemical pulp
Biofouling
Simulators
Biofilms
Corrosion
Pitting
Stainless steel
Mechanical pulp
Capillary electrophoresis
Sulfur compounds
Bleaching
Chlorine
Water
Bacteria
Microscopic examination
Deposits
Polarization
Networks (circuits)
Metals
Experiments

Cite this

Carpen, L., Raaska, L., Kujanpää, K., Mattila, K., Uutela, P., Salkinoja-Salonen, M., & Hakkarainen, T. (2001). Laboratory simulator for splash zone biofouling and corrosion in paper machine environment. In T. Hakkarainen (Ed.), 10th International Symposium on Corrosion in the Pulp and Paper Industry (10th ISCPPI). Helsinki, 21 - 24 August 2001: Volume 2 (pp. 587-598). Espoo: VTT Technical Research Centre of Finland. VTT Symposium, No. 215
Carpen, Leena ; Raaska, Laura ; Kujanpää, Kirsi ; Mattila, Katri ; Uutela, Päivi ; Salkinoja-Salonen, Mirja ; Hakkarainen, Tero. / Laboratory simulator for splash zone biofouling and corrosion in paper machine environment. 10th International Symposium on Corrosion in the Pulp and Paper Industry (10th ISCPPI). Helsinki, 21 - 24 August 2001: Volume 2. editor / Tero Hakkarainen. Espoo : VTT Technical Research Centre of Finland, 2001. pp. 587-598 (VTT Symposium; No. 215).
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title = "Laboratory simulator for splash zone biofouling and corrosion in paper machine environment",
abstract = "A novel laboratory simulator developed for pitting studies in chlorine dioxide bleaching was modified to investigate the effects of microbe containing environments in the splash zones of paper and board machines. Layers of dried chemical pulp were used to simulate deposits in splash zones. Artificial white water was prepared using as main components stone groundwood (sgw) and chemical pulp transferred from a paper machine. A consortium of aerobic as well as anaerobic bacteria typical for paper and board machine environments was used. Biofilm formation and the electrochemical behavior of stainless steel were studied. Open circuit potentials were recorded and polarization measurements were performed. The biofilms formed were analyzed by microbial cultivation and by epifluorescence microscopy. Sulfur compounds as well as the chloride and oxalate contents of the artificial white water in the course of the experiments were analyzed using capillary electrophoresis. Also some of the layers of chemical pulp closest to the metal surface were analyzed after the test. The results showed that the developed laboratory simulator was a valuable and versatile tool for studying the microbiological and chemical effects on pitting corrosion of stainless steel in conditions simulating the splash zone areas of paper and board machines.",
author = "Leena Carpen and Laura Raaska and Kirsi Kujanp{\"a}{\"a} and Katri Mattila and P{\"a}ivi Uutela and Mirja Salkinoja-Salonen and Tero Hakkarainen",
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Carpen, L, Raaska, L, Kujanpää, K, Mattila, K, Uutela, P, Salkinoja-Salonen, M & Hakkarainen, T 2001, Laboratory simulator for splash zone biofouling and corrosion in paper machine environment. in T Hakkarainen (ed.), 10th International Symposium on Corrosion in the Pulp and Paper Industry (10th ISCPPI). Helsinki, 21 - 24 August 2001: Volume 2. VTT Technical Research Centre of Finland, Espoo, VTT Symposium, no. 215, pp. 587-598, 10th International Symposium On corrosion in the Pulp and Paper Industry, ISCPPI , Helsinki, Finland, 21/08/01.

Laboratory simulator for splash zone biofouling and corrosion in paper machine environment. / Carpen, Leena; Raaska, Laura; Kujanpää, Kirsi; Mattila, Katri; Uutela, Päivi; Salkinoja-Salonen, Mirja; Hakkarainen, Tero.

10th International Symposium on Corrosion in the Pulp and Paper Industry (10th ISCPPI). Helsinki, 21 - 24 August 2001: Volume 2. ed. / Tero Hakkarainen. Espoo : VTT Technical Research Centre of Finland, 2001. p. 587-598 (VTT Symposium; No. 215).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - Laboratory simulator for splash zone biofouling and corrosion in paper machine environment

AU - Carpen, Leena

AU - Raaska, Laura

AU - Kujanpää, Kirsi

AU - Mattila, Katri

AU - Uutela, Päivi

AU - Salkinoja-Salonen, Mirja

AU - Hakkarainen, Tero

PY - 2001

Y1 - 2001

N2 - A novel laboratory simulator developed for pitting studies in chlorine dioxide bleaching was modified to investigate the effects of microbe containing environments in the splash zones of paper and board machines. Layers of dried chemical pulp were used to simulate deposits in splash zones. Artificial white water was prepared using as main components stone groundwood (sgw) and chemical pulp transferred from a paper machine. A consortium of aerobic as well as anaerobic bacteria typical for paper and board machine environments was used. Biofilm formation and the electrochemical behavior of stainless steel were studied. Open circuit potentials were recorded and polarization measurements were performed. The biofilms formed were analyzed by microbial cultivation and by epifluorescence microscopy. Sulfur compounds as well as the chloride and oxalate contents of the artificial white water in the course of the experiments were analyzed using capillary electrophoresis. Also some of the layers of chemical pulp closest to the metal surface were analyzed after the test. The results showed that the developed laboratory simulator was a valuable and versatile tool for studying the microbiological and chemical effects on pitting corrosion of stainless steel in conditions simulating the splash zone areas of paper and board machines.

AB - A novel laboratory simulator developed for pitting studies in chlorine dioxide bleaching was modified to investigate the effects of microbe containing environments in the splash zones of paper and board machines. Layers of dried chemical pulp were used to simulate deposits in splash zones. Artificial white water was prepared using as main components stone groundwood (sgw) and chemical pulp transferred from a paper machine. A consortium of aerobic as well as anaerobic bacteria typical for paper and board machine environments was used. Biofilm formation and the electrochemical behavior of stainless steel were studied. Open circuit potentials were recorded and polarization measurements were performed. The biofilms formed were analyzed by microbial cultivation and by epifluorescence microscopy. Sulfur compounds as well as the chloride and oxalate contents of the artificial white water in the course of the experiments were analyzed using capillary electrophoresis. Also some of the layers of chemical pulp closest to the metal surface were analyzed after the test. The results showed that the developed laboratory simulator was a valuable and versatile tool for studying the microbiological and chemical effects on pitting corrosion of stainless steel in conditions simulating the splash zone areas of paper and board machines.

M3 - Conference article in proceedings

SN - 951-38-5721-2

T3 - VTT Symposium

SP - 587

EP - 598

BT - 10th International Symposium on Corrosion in the Pulp and Paper Industry (10th ISCPPI). Helsinki, 21 - 24 August 2001

A2 - Hakkarainen, Tero

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Carpen L, Raaska L, Kujanpää K, Mattila K, Uutela P, Salkinoja-Salonen M et al. Laboratory simulator for splash zone biofouling and corrosion in paper machine environment. In Hakkarainen T, editor, 10th International Symposium on Corrosion in the Pulp and Paper Industry (10th ISCPPI). Helsinki, 21 - 24 August 2001: Volume 2. Espoo: VTT Technical Research Centre of Finland. 2001. p. 587-598. (VTT Symposium; No. 215).