Electrochemically generated biocides for controlling contamination in papermaking

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

Feasibility of electrochemically generated biocides in papermaking was evaluated in pilot scale trials. The trials indicated that electrochemically generated biocides prevent microbial growth and proliferation in broke systems, as well as in water circulations. The spoilage of broke can be delayed, and already spoiled broke can be recovered using these biocides. The improved broke quality increases the stability of the paper machine and, consequently, less broke is produced. The biocides can be added to water or pulp, and they have hardly any negative effect on the process or the end product. The presence of reducing compounds may cause limitations in the use of these oxidative biocides. It was observed that electrochemically generated biocide was also efficient against heat-resistant spores. However, the biocide was less efficient against spores as compared to vegetative cells, both aerobic and anaerobic, especially when the spore numbers were higher than 104 cfu/ml. Onsite oxidant production eliminates the transportation and storage of biocides. Moreover, due to the short time between the production and use, the degradation of the active compounds can be minimized.
Original languageEnglish
Pages (from-to)2664-2680
Number of pages17
JournalBioResources
Volume5
Issue number4
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Fingerprint

Biocides
Papermaking
Disinfectants
Contamination
pesticide
spore
Spoilage
contamination
Water
Oxidants
oxidant
Pulp
Degradation
water
degradation

Keywords

  • Oxidizing biocide
  • Bacteria
  • papermaking
  • white water
  • broke
  • microbial control
  • electrochemical treatment
  • wet end chemistry

Cite this

@article{57474fd9cb0e4907862b8978653697c3,
title = "Electrochemically generated biocides for controlling contamination in papermaking",
abstract = "Feasibility of electrochemically generated biocides in papermaking was evaluated in pilot scale trials. The trials indicated that electrochemically generated biocides prevent microbial growth and proliferation in broke systems, as well as in water circulations. The spoilage of broke can be delayed, and already spoiled broke can be recovered using these biocides. The improved broke quality increases the stability of the paper machine and, consequently, less broke is produced. The biocides can be added to water or pulp, and they have hardly any negative effect on the process or the end product. The presence of reducing compounds may cause limitations in the use of these oxidative biocides. It was observed that electrochemically generated biocide was also efficient against heat-resistant spores. However, the biocide was less efficient against spores as compared to vegetative cells, both aerobic and anaerobic, especially when the spore numbers were higher than 104 cfu/ml. Onsite oxidant production eliminates the transportation and storage of biocides. Moreover, due to the short time between the production and use, the degradation of the active compounds can be minimized.",
keywords = "Oxidizing biocide, Bacteria, papermaking, white water, broke, microbial control, electrochemical treatment, wet end chemistry",
author = "Jani Kiuru and Pauliina Tukiainen and Irina Tsitko",
year = "2010",
language = "English",
volume = "5",
pages = "2664--2680",
journal = "BioResources",
issn = "1930-2126",
publisher = "North Carolina State University",
number = "4",

}

Electrochemically generated biocides for controlling contamination in papermaking. / Kiuru, Jani; Tukiainen, Pauliina; Tsitko, Irina.

In: BioResources, Vol. 5, No. 4, 2010, p. 2664-2680.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Electrochemically generated biocides for controlling contamination in papermaking

AU - Kiuru, Jani

AU - Tukiainen, Pauliina

AU - Tsitko, Irina

PY - 2010

Y1 - 2010

N2 - Feasibility of electrochemically generated biocides in papermaking was evaluated in pilot scale trials. The trials indicated that electrochemically generated biocides prevent microbial growth and proliferation in broke systems, as well as in water circulations. The spoilage of broke can be delayed, and already spoiled broke can be recovered using these biocides. The improved broke quality increases the stability of the paper machine and, consequently, less broke is produced. The biocides can be added to water or pulp, and they have hardly any negative effect on the process or the end product. The presence of reducing compounds may cause limitations in the use of these oxidative biocides. It was observed that electrochemically generated biocide was also efficient against heat-resistant spores. However, the biocide was less efficient against spores as compared to vegetative cells, both aerobic and anaerobic, especially when the spore numbers were higher than 104 cfu/ml. Onsite oxidant production eliminates the transportation and storage of biocides. Moreover, due to the short time between the production and use, the degradation of the active compounds can be minimized.

AB - Feasibility of electrochemically generated biocides in papermaking was evaluated in pilot scale trials. The trials indicated that electrochemically generated biocides prevent microbial growth and proliferation in broke systems, as well as in water circulations. The spoilage of broke can be delayed, and already spoiled broke can be recovered using these biocides. The improved broke quality increases the stability of the paper machine and, consequently, less broke is produced. The biocides can be added to water or pulp, and they have hardly any negative effect on the process or the end product. The presence of reducing compounds may cause limitations in the use of these oxidative biocides. It was observed that electrochemically generated biocide was also efficient against heat-resistant spores. However, the biocide was less efficient against spores as compared to vegetative cells, both aerobic and anaerobic, especially when the spore numbers were higher than 104 cfu/ml. Onsite oxidant production eliminates the transportation and storage of biocides. Moreover, due to the short time between the production and use, the degradation of the active compounds can be minimized.

KW - Oxidizing biocide

KW - Bacteria

KW - papermaking

KW - white water

KW - broke

KW - microbial control

KW - electrochemical treatment

KW - wet end chemistry

M3 - Article

VL - 5

SP - 2664

EP - 2680

JO - BioResources

JF - BioResources

SN - 1930-2126

IS - 4

ER -