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Urban Water Infrastructure
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Urban Water Infrastructure

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  1. Urban Water Infrastructure CE 572 - Analysis of Urban Water Systems Larry A. Roesner, Ph.D., P.E. Fall 2008

  2. The Urban Water Infrastructure System Treatment plant Supply Distribution system Collection system Drainage system Reuse Disposal Treatment plant

  3. The Water Supply Infrastructure System Treatment plant Supply Distribution system Collection system Drainage system Reuse Disposal Treatment plant

  4. Water Supply Issues • Raw water -> Finished supply • Dependable supply now and tomorrow • Where, how much, quality,cost • Conservation • Distribution system • System expansion • Maintenance • Water quality at point of use • Security

  5. The WastewaterInfrastructure System Treatment plant Supply Distribution system Collection system Drainage system Reuse Disposal Treatment plant

  6. Wastewater Issues • Collection Systems • Planning for future growth • Maintenance of existing system • Untreated overflows (CSOs, SSOs) • Wastewater Treatment Plants • Effluent limits on discharges • Wet weather by-passing • Future growth

  7. The Urban Runoff Infrastructure System Treatment plant Supply Distribution system Collection system Drainage system Reuse Disposal Treatment plant

  8. Runoff Issues • Flood protection (local and downstream) • Discharge water quality • Maintenance • Drainage infrastructure • Water quality issues

  9. But who’s thinking about the “water system” ?? • Most municipalities have independent departments for water, wastewater, and stormwater • For some, collection/distribution systems is a separate department • Integrated management is difficult Green Infrastructure and Sustainable Communities 17-9

  10. RAIN Undeveloped INFILTRATION RUNOFF The Pre-Urban Water Balance 40% Evapotranspiration 50 % 10 % Green Infrastructure and Sustainable Communities 17-10

  11. RAIN Developed INFILTRATION RUNOFF Effect of Urban Development POTABLE WATER 35% Evapotranspiration 25 % 30 % WWTP SSOs/CSOs Green Infrastructure and Sustainable Communities 17-11

  12. Overview of Course • Readings • Applications lectures • Project report for each modeling exercise • Class presentations of project findings

  13. Course Topics • Holistic analysis of an urban water system • Wastewater reuse • Graywater reuse • Xeriscaping vs. bluegrass • System infrastructure management issues • Water supply system analysis • Water age • Security • Sanitary sewer overflow problem • RDII • Analysis of alternatives for remediation • Combined sewer overflow problem • Stormwater quality and treatment

  14. Meeting Time