My understanding ius there are about eight different microbes that make up MIC. As Mark stated some are aerobic and some are anaerobic. Some eat steel and some process the waste matter from others. And some excrete the nutrients and oxidizers the others need to flourish while others deplete the oxidizers that are detrimental the others. They all get together in nice little symbiotic colonies and flourish at our expense. The oxygen depleters seem to beat the oxygen users over time but the reintroduction of fresh water invigorates the losers and kicks starts the process. I don't think you can get substantial MIC in a dry system but you do get all those other corrosion nasties. I don't think nitrogen would have an appreciable benefit in a pre-action. This is just my interpretation and I may be way off base. There are corrosion engineers that can be consulted.
On Wed, Nov 18, 2009 at 9:01 AM, Phelps, Mark <[email protected]> wrote: > Some of the microbs responsible for the corrosion refered to as MIC are > aerobic, meaning they require oxygen to exist, others are anarobic meaning > they do not. Anarobic bacteria are some of the oldest lifeforms on earth and > may live in entirely oxygen free enviroments. there ya havit. > Mark at Aero > > -----Original Message----- > From: [email protected] > [mailto:[email protected]]on Behalf Of Thom > McMahon > Sent: Wednesday, November 18, 2009 9:47 AM > To: [email protected] > Subject: RE: Nitrogen compressors > > > This is the system that is being recommended. NOT compressed Nitrogen > bottles. The reductions they address are for oxygen induced corrosion. It > would be interesting to know if MIC is still a problem in these systems. > > Thom McMahon, SET > Firetech, Inc. > 2560 Copper Ridge Dr > P.O. Box 882136 > Steamboat Springs, CO 80488 > Tel: 970-879-7952 > Fax: 970-879-7926 > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Wednesday, November 18, 2009 9:30 AM > To: [email protected] > Subject: RE: Nitrogen compressors > > Everything you ever wanted to know about Nitrogen Generators: > > http://www.fpscmi.com/ > > Thanks, > Ricky > > > > > > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > For Technical Assistance, send an email to: [email protected] > > To Unsubscribe, send an email to:[email protected] > (Put the word unsubscribe in the subject field) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA, WSAFM _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
