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Corrosion treatment strategies can be categorized into five categories:

1 Design modification‐change/materials selection (change and/or modification of design including change/upgrading of materials).

2 Chemical treatment; use of various kinds of corrosion inhibitors (anodic inhibitors, cathodic inhibitors and mixed effect inhibitors, biocides either as oxidizing biocides or non‐oxidizing biocides).

3 Electrical treatment (the most noticeable example in this context is cathodic protection).

4 Mechanical treatment (pigging).

5 Physical treatment (paints/coatings).

As we can see, the corrosion treatment strategies and techniques are indeed very limited in number. However, depending on the corrosion process in focus, there can exist some alterations. For example, if the corrosion case happens to be MIC, then yet another option can be added; the biological treatment of MIC. These alterations do not mean that the essential five strategies cannot be applied. For instance, in the case of MIC, physical treatment as well as electrical and mechanical treatment may also be applicable. The alterations are only applicable where, due to the very nature of the corrosion process, more treatment options may be made available.

Below we will briefly review these five treatment strategies. Once again, we should remind our readers that neither this chapter nor the book itself is about teaching corrosion science and the electrochemistry behind it in the way that many famous handbooks and textbooks do. Our main focus here is on knowing as much necessary for an engineer who happens to become responsible for developing a CM strategy and who may need to know some basic, important elements of the science of corrosion when trying to differentiate between CM various models. As we have described in full in Chapter 3 under the title of “Smart Corrosion Management Elements,” having an efficient, realistic, smart model for CM is an integral part of any strategy that seriously considers management of corrosion.