EVALUATION OF CORROSION-RESISTANT ALLOYS FOR DESALINATION APPLICATIONS

The development and production of fresh water by reverse osmosis from the Arabian Gulf requires several considerations. Apart from those suc h as minimizing energy consumption, improved membrane performance, inc reased recovery and salt rejection, and increased chlorine resistance, materials selection and corrosion resistance make a significant contr ibution to the reduction in the product water cost. The state of the a rt for selection of appropriate corrosion resistance alloys for a spec ific environment is not sufficiently advanced to make the choices for a specific environment obvious. It still remains necessary to perform laboratory and plant testing of candidate alloys to establish those al loys that may be suitable for use in a specific plant environment. Res ults of laboratory and plant testing of a number of candidate construc tion materials for the various components and pipings are described.