Tour a water desalination plant, where brackish water (a mixture of freshwater and saltwater) gets turned into pure freshwater in this video adapted from ATETV. Plant worker Michael Poitras, who started working at the plant as a community college intern, describes the filtration process that progressively removes salt and other impurities from the water. He also explains the coursework needed to prepare for a job in a water treatment plant, and how the desalination process can be used in other parts of the world, especially in highly populated areas where freshwater drinking supplies are depleting.
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