Reusing system of the ballast water

Increasing water consumption is a problem faced by the world; one of its solutions is reusing water. Reuse is about changing processes that result in polluted water byproducts so that the resulting water is usable again. Our solution is to reuse ballast water in transporting oil. Oil ships are heading from one country to another, and they are loaded with oil. These ships return to be loaded with ballast water instead of oil. The first step is to place a source of solid air in the tanks to provide some bubbles inside the tank. Secondly, put some of the iron peels inside the tanks to stick these peels with the bubbles, then by a magnetic field attracts the pollutant bubbles attached to the iron scales, and the ballast water remains in the tank to be used again. The results were astounding because they achieved the design requirements.