Biofouling and Microbial Induced Corrosion -A Case Study
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
In industrial and fluid handling systems, frequently the protective film forming materials suffer from severe corrosion due to microbial effects. As an example, various micro-organisms, including bacteria, exist in seawater normally fed to power and desalination plants. Unless seawater intakes are properly disinfected to control these microbial organisms, biological fouling and microbial induced corrosion (MIC) will be developed. This problem could destroy metallic alloys used for plant construction. Seawater intakes of cogeneration plants are usually disinfected by chlorine gas or sodium hypochlorite solution. The dose of disinfectant is designed according to the level of contamination of the open seawater in the vicinity of the plant intake. Higher temperature levels, lower pH, reduced flow velocity and oxidation potential play an important role in the enhancement of microbial induced corrosion and bio-fouling. This paper describes, in brief, the different types of bacteria, mechanisms of microbiological induced corrosion, susceptibility of different metal alloys to MIC and possible solutions for mitigating this problem in industry. A case study is presented for the power plant steam condenser at Al-Taweelah B-station in Abu Dhabi. The study demonstrates resistance of Titanium tubes to MIC.
Abstract
In industrial and fluid handling systems, frequently the protective film forming materials suffer from severe corrosion due to microbial effects. As an example, various micro-organisms, including bacteria, exist in seawater normally fed to power and desalination plants. Unless seawater intakes are properly disinfected to control these microbial organisms, biological fouling and microbial induced corrosion (MIC) will be developed. This problem could destroy metallic alloys used for plant construction. Seawater intakes of cogeneration plants are usually disinfected by chlorine gas or sodium hypochlorite solution. The dose of disinfectant is designed according to the level of contamination of the open seawater in the vicinity of the plant intake. Higher temperature levels, lower pH, reduced flow velocity and oxidation potential play an important role in the enhancement of microbial induced corrosion and bio-fouling. This paper describes, in brief, the different types of bacteria, mechanisms of microbiological induced corrosion, susceptibility of different metal alloys to MIC and possible solutions for mitigating this problem in industry. A case study is presented for the power plant steam condenser at Al-Taweelah B-station in Abu Dhabi. The study demonstrates resistance of Titanium tubes to MIC.
참고문헌 (19)
- F. Kajiyama, "JSCE", 100th Corrosion Symposium on Microbial Corrosion, pp.55~ (1994)
- S. C. Dexter, "“Localized Biological Corrosion”, in the Metals Handbook", Corrosion ASTM Ohio, 13, pp.41~114 (1987)
- M. E. El-Dahshan, "“Principles of corrosion and oxidation science”" (2002), R&D department
- R. E. Tatnall, "“Fundamentals of Bacteria Induced Corrosion”", Mater. Perf (1981)
- W. Costerton, ""Behaviour of Bacteria in Biofilms"", American Society of Microbiology News, 55, pp.650~ (1989)
- H. M. Herro, "“The Nalco Guide to Cooling Water System Analysis”" (1993), McGraw-Hill
- "SINEF Materials Technology, Microbiologically influenced corrosion of industrial materials"[URL]
- S. W. Borenstien, "“Microbiologically Influenced Corrosion Handbook”" (1994), Industrial Press
- P. Wagner, "Impact of Alloying on Microbiologically Influenced Corrosion–A Review", Mater. Perf, pp.65~ (1993)
- M. E. El-Dahshan, "“An Investigation into Problems Encountered by Al-Nakheel Desalination Plant at Ras Al-Kheemah”", Abu Dhabi Water and Electricity Authority ADWEA
- A. H. Rose, "Microbial Biodetrioration in Economic Microbiology" (1981), Academic Press
- P. J. B. Scott, , Mater. Perf, 30, pp.55~ (1991)
- D. H. Pope, "Microbial Corrosion On Fossil-Fired Power Plants - A Study of Microbiologically Influenced Corrosion and a Practical Guide for its Treatment and Prevention" (1987), Electrical Power Research Institute
- M. Schumacher, "Seawater Corrosion Handbook" (1979), Park Ridge, NJ, Noyes Data Corporation
- V. Gouda, , Corrosion, 49, pp.63~ (1993)
- C. B. Fliermans, , Apply Environ. Microbiol, 6, pp.89~ (1981)
- R. A. Buchanan, "Microbially Influenced Corrosion of Fe-, Ni-, Al-, and Ti-Based Weldments", Mater. Perf, pp.46~ (1997)
- D. H. Pope, , Mater. Perf, pp.46~ (1989)
- Gunnerson, G. Charles, "Wastewater Management for Costal Cities, the Ocean Disposal Option”" (1988), World Bank