Development of an electrochemical antifouling system for seawater cooling pipelines of power plants using titanium

Hitoshi Wake, Hiromichi Takahashi, Toshihiro Takimoto, Hirokazu Takayanagi, Kinichi Ozawa, Hideo Kadoi, Mina Okochi, Tadashi Matsunaga

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Biofouling is the undesirable adhesion and development of microorganisms and macroorganisms in a water environment. An electrochemical antifouling system based on management of primary adhesion of microorganisms was developed employing titanium electrode for antifouling of seawater cooling pipes and marine infrastructures. The system consists of an electrochemical reaction-monitoring unit, a power control unit, and a potential/current remote monitoring and a control unit. Titanium plates and iron plates were used as the working and counter electrode, respectively. Field experiment was conducted in the seawater cooling pipeline system of a thermal power station. Four titanium electrodes with 1.0 m length and 3.0 m width were set in the seawater intake pit and current density was controlled at 50-100 mA/m2. The electrode surface maintained clean conditions for 2 years. The average wet weight of fouling organisms on the titanium electrode surface was below 100 g/m 2 whereas the corresponding wet weight was above 10 kg/m2 on the control surface. Using titanium as the electrode material, chlorine and hypochlorite are not generated. The developed electrochemical antifouling system provided an effective, environmentally friendly, and feasible techniques for remote operations.

Original languageEnglish
Pages (from-to)468-473
Number of pages6
JournalBiotechnology and Bioengineering
Volume95
Issue number3
DOIs
Publication statusPublished - 2006 Oct 20
Externally publishedYes

Keywords

  • Antifouling
  • Electrochemical
  • Titanium electrode

ASJC Scopus subject areas

  • Biotechnology
  • Microbiology

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    Wake, H., Takahashi, H., Takimoto, T., Takayanagi, H., Ozawa, K., Kadoi, H., Okochi, M., & Matsunaga, T. (2006). Development of an electrochemical antifouling system for seawater cooling pipelines of power plants using titanium. Biotechnology and Bioengineering, 95(3), 468-473. https://doi.org/10.1002/bit.21022