| 摘要 |
<p>The present invention relates to a process for removing surface contaminants from water filtration media contained in a water filtration bed including granular activated carbon (GAC). This process comprises the steps of:
applying a cleaner in granular form onto said water filtration media, while the filtration media is located within the filtration bed;
applying an active oxygen donor in liquid form to said water filtration bed, to initiate at least one chemical reaction between the cleaner, the active oxygen donor, and the surface contaminants on the water filtration media, causing at least one of suspension and dissolution of contaminants received from the water filtration media;
after initiating of said at least one chemical reaction, rinsing the filtration media in the water filtration bed with water for removing any of residual cleaner, residual active oxygen donor, suspended contaminants, and dissolved contaminants from the water filtration media.</p> |
