WATER TREATMENT: FILTRATION – cont’d

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WATER TREATMENT: FILTRATION contd. CE326 Principles of Environmental Engineering Iowa State University Department of Civil, Construction and Environmental Engineering Tim Ellis, Ph.D., P.E., Associate Professor March 9, 2009. Announcements. - PowerPoint PPT Presentation

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  • WATER TREATMENT: FILTRATION contdCE326 Principles of Environmental EngineeringIowa State UniversityDepartment of Civil, Construction and Environmental Engineering Tim Ellis, Ph.D., P.E., Associate ProfessorMarch 9, 2009

  • AnnouncementsWednesday field trip to Ames Water Plant http://www.ameshistoricalsociety.org/exhibits/civic/waterworks1.htmMeet at the plant at half past the hour of scheduled lab time (10:30 and 2:30)Bring photo idsNo cameras, cell phones or backpacks allowed2nd exam scheduled for Friday, March 27th - well have a review during the lab class on Wednesday, March 25th

  • Public Health Effects of Filtration

  • Number of waterborne disease outbreaks in U.S.

  • Bachwash Efficiency*5 nozzles/ft2 or 55 nozzles/m2 - acceptable< 4 nozzles/ft2 or 40 nozzles/m2 large dead zones24 nozzles/ft2 or 268 nozzles/m2 - good

  • Automatic Backwash Filter

  • Automatic Backwash Filter

  • Backwashing Calculations

  • Backwashing Calculations

  • Backwashing Calculations

  • Backwashing Calculations

  • first elevated steel water tank west of the Mississippi Rivererected in 1897 under the supervision and design of Anson Marstonconstructed due to a severe water shortage in 1895 that required cancellation of classestank holds 162,000 US gallons1978, the water tower was disconnected when the university switched to municipal water

  • Water Towers, 1951-1970, Water District No. 54 Located on the north side of the Des Moines Field House, near the current skateboard park

  • http://www.ameshistoricalsociety.org/exhibits/civic/waterworks1.htm

  • Stanton, Iowa- 96 feet tall.- holds 2,400,000 cups of coffee (150,000 gals.)- completed in time for Homecoming 2000.Hollywood screen and TV personality Virginia Christine, "Mrs. Olson" of coffee commercial fame, was one of Stanton's famous daughters. At the time of our centennial in 1970, Virginia came home to be our parade marshal. During the celebration she served coffee to the public. Stanton's water tower was converted to a giant Swedish coffeepot the following year.

  • Adair, IowaHelm, CaliforniaAtlanta, IllinoisMarkle, IndianaIronwood, Michigan

  • ISU is the home of the first elevated steel water tank west of the Mississippi River. Named the Marston Water Tower, it was erected in 1897 under the supervision and design of Anson Marston. The water tower was constructed due to a severe water shortage in 1895 that required cancellation of classes.

    The water tower stands 168 feet (51 m) tall on an octagonal base. The tank holds 162,000 US gallons (613 m) and is 24 feet (7 m) in diameter and 40 feet (12 m) tall. When full, the ~72,400 cubic feet (2,050 m) of water would weigh 2,050 t.

    In 1978, the water tower was disconnected when the university switched to municipal water.

    It was listed in the National Register of Historic Places on May 27, 1982 and restored in 1997.