A new dual biocide concept for fine papermaking

Jani Kiuru, Jenni Sievänen, Irina Tsitko, Heikki Pajari, Pauliina Tukiainen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsProfessional

Abstract

Electrochemical generation of oxidants was studied to find new solutions to control microbial contamination at paper mills. Laboratory and semi-pilot trials using a Wet End Simulator indicated that the combination of an electrochemically produced halogen-containing oxidant and percarbonate was an efficient new biocide concept, especially in fine papermaking. Addition of percarbonate considerably reduced the need of halogen containing biocides, thus lessening risk of corrosion. The trials with samples from fine paper machines indicated that the new concept required halogenated biocides to be dosed first, and the time delay between additions of biocide needed to be sufficient to ensure that no residual halogen left when percarbonate was added. Electrochemical generation enables on-site biocide production which decreases transportation cost, risk associated with storage of hazardous chemicals and biocide lost due to degradation. Thus, on-site generation of biocides together with potential reduction in amount of halogen containing oxidants make this dual concept economically attractive and environmentally positive.
Original languageEnglish
Title of host publicationPaper Conference and Trade Show 2010 (PaperCon 2010)
Subtitle of host publicationAtlanta, Georgia, USA, 2-5 May 2010
PublisherTAPPI Press
Pages598-629
Volume1
ISBN (Print)978-1-61738-789-0
Publication statusPublished - 2010
MoE publication typeD3 Professional conference proceedings
EventPaper Conference and Trade Show, PaperCon 2010 - Atlanta, United States
Duration: 2 May 20105 May 2010

Publication series

Name
PublisherPearson Education Limited
Volume1

Conference

ConferencePaper Conference and Trade Show, PaperCon 2010
CountryUnited States
CityAtlanta
Period2/05/105/05/10

Fingerprint

papermaking
biocides
halogens
oxidants
pulp and paper mills
microbial contamination
corrosion
toxic substances
degradation

Cite this

Kiuru, J., Sievänen, J., Tsitko, I., Pajari, H., & Tukiainen, P. (2010). A new dual biocide concept for fine papermaking. In Paper Conference and Trade Show 2010 (PaperCon 2010): Atlanta, Georgia, USA, 2-5 May 2010 (Vol. 1, pp. 598-629). TAPPI Press.
Kiuru, Jani ; Sievänen, Jenni ; Tsitko, Irina ; Pajari, Heikki ; Tukiainen, Pauliina. / A new dual biocide concept for fine papermaking. Paper Conference and Trade Show 2010 (PaperCon 2010): Atlanta, Georgia, USA, 2-5 May 2010. Vol. 1 TAPPI Press, 2010. pp. 598-629
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Kiuru, J, Sievänen, J, Tsitko, I, Pajari, H & Tukiainen, P 2010, A new dual biocide concept for fine papermaking. in Paper Conference and Trade Show 2010 (PaperCon 2010): Atlanta, Georgia, USA, 2-5 May 2010. vol. 1, TAPPI Press, pp. 598-629, Paper Conference and Trade Show, PaperCon 2010, Atlanta, United States, 2/05/10.

A new dual biocide concept for fine papermaking. / Kiuru, Jani; Sievänen, Jenni; Tsitko, Irina; Pajari, Heikki; Tukiainen, Pauliina.

Paper Conference and Trade Show 2010 (PaperCon 2010): Atlanta, Georgia, USA, 2-5 May 2010. Vol. 1 TAPPI Press, 2010. p. 598-629.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsProfessional

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AB - Electrochemical generation of oxidants was studied to find new solutions to control microbial contamination at paper mills. Laboratory and semi-pilot trials using a Wet End Simulator indicated that the combination of an electrochemically produced halogen-containing oxidant and percarbonate was an efficient new biocide concept, especially in fine papermaking. Addition of percarbonate considerably reduced the need of halogen containing biocides, thus lessening risk of corrosion. The trials with samples from fine paper machines indicated that the new concept required halogenated biocides to be dosed first, and the time delay between additions of biocide needed to be sufficient to ensure that no residual halogen left when percarbonate was added. Electrochemical generation enables on-site biocide production which decreases transportation cost, risk associated with storage of hazardous chemicals and biocide lost due to degradation. Thus, on-site generation of biocides together with potential reduction in amount of halogen containing oxidants make this dual concept economically attractive and environmentally positive.

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Kiuru J, Sievänen J, Tsitko I, Pajari H, Tukiainen P. A new dual biocide concept for fine papermaking. In Paper Conference and Trade Show 2010 (PaperCon 2010): Atlanta, Georgia, USA, 2-5 May 2010. Vol. 1. TAPPI Press. 2010. p. 598-629