Skip to main content

Control of Thiobacillus by means of microbial competition: Implications for corrosion of concrete sewers

Buy Article:

$22.00 plus tax (Refund Policy)

Corrosion of concrete sewers is associated with the biological oxidation of hydrogen sulfide to sulfuric acid by bacteria of the genus Thiobacillus. Inhibition of acid production by these organisms, was investigated by challenging established cultures with a heterotrophic competitor under controlled conditions. Two-organism competition experiments (T. thiooxidans or T. neapolitanus versus the heterotrophic competitor) were conducted in a bench-scale, continuous-flow, constantly stirred tank reactor. Results were sensitive to the influent nitrogen:carbon ratio. Under conditions designed to produce nitrogen-limited growth, the numbers of thiobacilli were reduced 60- to 1 200-fold after introduction of the competitor. Effluent sulfate concentrations, an indicator of acid production, dropped by 85%. Under carbon-limited conditions, modest reductions in thiobacilli cell density and effluent sulfate concentration were observed. Microbial competition reduced acid production under the conditions of the experiment. The results suggest that strategies based on competitive displacement of thiobacilli to inhibit corrosion of concrete sewers may be feasible.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Keywords: ACID PRODUCTION; COLLECTION SYSTEMS; CORROSION; HYDROGEN SULFIDE; SULFATE; THIOBACILLUS

Document Type: Research Article

Publication date: 1995-03-01

More about this publication?
  • Water Environment Research (WER) is published monthly, including an annual Literature Review. A subscription to WER includes access to the latest content back to 1992, as well as access to fast track articles. An individual subscription is valid for 12 months from month of purchase.

    Water Environment Research (WER) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
  • Editorial Board
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Information for Advertisers
  • WEF Bookstore
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more