Abstract
Since the value of utilizing multi-sourced water supplies has increased in recent years, a method called the sacrificial anode (SA) method, which uses zinc to suppress corrosion of reclaimed water pipes, a more commonly used type of multi-sourced water supply, has been applied and its effects have been observed. Visual analyses reveal that pipes to which the SA method was not applied, display a significant amount of rust generated while those to which more than 40 mm of SA metal was applied, did not show any corrosion except for #2, which contains some rust because it applied the least amount of SA metal. Having examined the speed and trend of corrosion, it has been concluded that the application of SA may lead to outstanding results and, as the amount of SA metal used increases, the initial effect becomes more definite and positive. Also, it has been found that installing SA metal near the beginning of a pipe, in terms of the direction of water flow, leads to better and more promising results.
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