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Biological

Cosasco offers both retractable and retrievable bio-probes for monitoring microbiologically influenced corrosion (MIC). Bio-probes offer plant operators a simple and effective tool for collecting samples for subsequent microbiological analyses in systems susceptible to MIC. Microorganisms, including bacteria, algae, and fungi can accelerate the corrosion process by as much as 10-1000 times. Often undetected in many industrial systems, MIC can result in the improper use of corrosion inhibitors and biocides, resulting in significant waste and increased operating costs.

The most common forms of corrosion associated with MIC include pitting corrosion, uniform corrosion, crevice corrosion, galvanic corrosion, and stress corrosion cracking. MIC occurs in virtually every aqueous environment such as water treatment and sewage handling and treatment plants, but can also occur in oil & gas systems, chemical processing plants, and underground pipelines. Plant operators use chemical treatment, mainly biocides to kill the corrosion causing bacteria and other microorganisms. In addition physical cleaning through system flushing or mechanical cleaning with pigs are used to keep a system clean. Verification and adjustment of the treatment for effectiveness is required.

 

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