Choosing a biocide for a ...

Choosing a biocide for a recirculating cooling or process water is almost always difficult.  When oxidizers can be used, they are often the most economical solution.  But EVERY biocide program has its Pros and its Cons.  Choosing the correct program requires evaluation of many variables, including but not limited to: water chemistry, system metallurgy, contamination levels (suspended solids or dissolved species), etc. etc. One also must evaluate the logistics of the operation: is the system needing treatment on the roof of a tall building, is the only good feed point located 325 yards away from the nearest electrical source, etc.?  And of course, unlike many other treatment chemicals biocides are heavily regulated in most countries, both on the application side AND on the discharge side.  If you are still interested in this question, please feel free to email me at cbaron@chemtreat.com and I will be happy to help you evaluate your options.