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D-Tryptophan as a Biocide Enhancer for Desulfovibrio vulgaris Biofilm Mitigation and Biocorrosion of Carbon Steel by Nitrate-Reducing Pseudomonas aeruginosa

Lindenberger, Amy L.

Abstract Details

2014, Master of Science (MS), Ohio University, Chemical Engineering (Engineering and Technology).
There have been many reported failures due to biocorrosion, also known as microbiologically influenced corrosion (MIC), throughout the years. Additional research is needed in this area focusing on mechanisms and mitigation. Treatments for MIC rely primarily on biocides and pigging. Biocide enhancers are an excellent way to improve upon already existing biocides. D-amino acids as biocide enhancers for tetrakis (hydroxymethyl) phosphonium sulfate (THPS) have shown promise in recent years. In this work, D-tryptophan was combined with THPS at various concentrations to determine its efficacy as a biocide enhancer against sulfate-reducing bacteria (SRB) Desulfovibrio vulgaris biofilms. It was determined that D-tryptophan could be an effective biocide enhancer for THPS at high concentrations. Though not as well studied as SRB, nitrate-reducing bacteria (NRB) can also cause MIC failures. Additional research is needed to further understanding and mechanistic study in this area. Anaerobic experiments were conducted with Pseudomonas aeruginosa grown as an NRB. Three different strains were tested under the same conditions to determine if there was any significant difference in their MIC. It was determined that there were no significant differences in the MIC caused by the three strains.
Tingyue Gu, Ph.D. (Advisor)
Srdjan Nesic, Ph.D. (Committee Member)
Monica Burdick, Ph.D. (Committee Member)
Peter Coschigano, Ph.D. (Committee Member)
112 p.

Recommended Citations

Citations

  • Lindenberger, A. L. (2014). D-Tryptophan as a Biocide Enhancer for Desulfovibrio vulgaris Biofilm Mitigation and Biocorrosion of Carbon Steel by Nitrate-Reducing Pseudomonas aeruginosa [Master's thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1417296479

    APA Style (7th edition)

  • Lindenberger, Amy. D-Tryptophan as a Biocide Enhancer for Desulfovibrio vulgaris Biofilm Mitigation and Biocorrosion of Carbon Steel by Nitrate-Reducing Pseudomonas aeruginosa. 2014. Ohio University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1417296479.

    MLA Style (8th edition)

  • Lindenberger, Amy. "D-Tryptophan as a Biocide Enhancer for Desulfovibrio vulgaris Biofilm Mitigation and Biocorrosion of Carbon Steel by Nitrate-Reducing Pseudomonas aeruginosa." Master's thesis, Ohio University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1417296479

    Chicago Manual of Style (17th edition)