Commissioner Frank Avila gives some history of the Wilmette Pumping Station which was orginally constructed in 1912. The Wilmette Water Plant is a surface water treatment facility located on the shores of Lake Michigan. Providing water for the nearly 100000 residents of Wilmette, Glenview and Prospect Heights, the plant pumps an average of 13 million gallons of water per day (MGD), with a peak of 31 MGD during summer. The Water Plant has a staff of 18 employees. The water treatment process begins with the intake of raw water from Lake Michigan. Low lift pumps deliver water into the plant where it is treated with chlorine for disinfection, alum for clarification, fluoride for dental health and activated carbon for taste and odor control. Approximately one teaspoon of chemicals is used for every 100 gallons of water treated. Following this chemical addition, water flows by gravity into mixing/settling basins where gentle mixing, or "flocculation", enhances the formation of "floc" particles with the alum. These floc particles collide with and bond to suspended natural silt and clay particles from the Lake, causing them to "settle out" in the settling basins. Ninety percent of all solid materials that enter the plant are removed in the sedimentation step. Following sedimentation, the water is filtered through rapid sand filters. Here, the filtered water receives an additional dose of chlorine as well as ortho-polyphosphate -- to inhibit corrosion of the distribution piping ...
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See Also : Regenerated Activated Carbon Service Activated Carbon C.Gigantic Carbon PORTAL SITE Regeneration Activateed Carbon By Calgon Carbon North Eastern Starch | แป้งมันสำปะหลัง
