Dissolved Oxygen and pH Microelectrode Measurements at Water-Immersed Metal Surfaces

Abstract

Investigation of microbial corrosion requires incorporation of both electrochemical and microbiological methods. Dissolved oxygen (DO) and pH were measured at metal/artificial seawater interfaces using microelectrodes in biotic and abiotic system. Measurements in a closed system proved that presence of electrochemical and/or biological reaction products substantially influence the conditions at the metal surface. For long-term studies, only open (e.g., continuous flow) reactors should be used. An open channel flow reactor suitable both for microbiological and electrochemical measurements has been constructed and successfully tested. Reprints.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1989
Accession Number
ADA208981

Entities

People

  • Bryan Little
  • W. C. Lee
  • W. G. Characklis
  • Z. Lewandowski

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Acids
  • Buffers (Chemistry)
  • Cathodic Protection
  • Channel Flow
  • Chemical Properties
  • Chemical Reactions
  • Chlorides
  • Corrosion
  • Current Density
  • Electrode Holders
  • Electrodes
  • Measurement
  • Metals
  • Microelectrodes
  • Microorganisms
  • Microscopes
  • Sodium Compounds

Fields of Study

  • Environmental science

Readers

  • Agricultural Chemistry/Soil Science
  • Electrochemical Surface Science
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)

Technology Areas

  • Biotechnology
  • Biotechnology - Bioremediation