wrccso rethinking the cso for the 21 st century
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WRCCSO - Rethinking the CSO for the 21 st Century Peter Henley Water - PowerPoint PPT Presentation

WRCCSO - Rethinking the CSO for the 21 st Century Peter Henley Water Research Centre Ltd. Head of Wastewater Networks Rethinking the CSO for the 21 st Century Innovation delivery through partnership independent | trusted | innovative


  1. WRCCSO - Rethinking the CSO for the 21 st Century Peter Henley – Water Research Centre Ltd. Head of Wastewater Networks

  2. Rethinking the CSO for the 21 st Century Innovation delivery through partnership independent | trusted | innovative

  3. Water Research Centre Ltd – 90 Years of Innovation 3 wrcplc.co.uk independent | trusted | innovative

  4. The CSO Problem • Unpowered CSOs do not work consistently • Screens can block and often by-passed • Results in discharge of unsightly sewer litter • Sewer litter leads to customer impacts 4 wrcplc.co.uk independent | trusted | innovative

  5. Customer Impacts • Sewer litter leads to complaints, fines and very poor PR • Impacts on pollution regulators scoring indicators • Increased unwanted customer contacts • Reputational damage to the water industry 5 wrcplc.co.uk independent | trusted | innovative

  6. WRc CSO Design Principle Allow the natural Minimal Retain sewer litter hydraulic presentation of within the flow processes to occur litter to the screen 6 wrcplc.co.uk independent | trusted | innovative

  7. The 21 st Century CSO Solution • Design a CSO that retains sewer litter within the network • Provide a CSO solution that requires no power • Significantly reduces visible/aesthetic pollution • Reduce the frequency of screen cleaning • Provide a modular solution with a retro-fit capability 7 wrcplc.co.uk independent | trusted | innovative

  8. WRc CSO Design WRc Innovative 2 chamber design Solution Chamber Separates the floating debris and 1. returns it to downstream sewer Chamber Allows ‘clean’ water to spill to the 2. watercourse via the screened weir 8 wrcplc.co.uk independent | trusted | innovative

  9. WRcSO Chamber arrangement 9 wrcplc.co.uk independent | trusted | innovative

  10. CSO Operation – Side Elevation Solid material density Stilling Chamber Spill Continuation Incoming Flow Point Flow 10 wrcplc.co.uk independent | trusted | innovative

  11. CSO Operation – Downstream View Solid material density Spill Continuation Point Flow Incoming Flow 11 wrcplc.co.uk independent | trusted | innovative

  12. The WRc CSO Advantages • Reduces debris presented to the screens by 98% • Reduces aesthetic pollution of watercourses and beaches to a minimum • Passive unpowered system that can be retrofitted • No E&M maintenance costs • Reduced SIM contacts and cost of spill clean up 12 wrcplc.co.uk independent | trusted | innovative

  13. Patented solution (published) WRc partnership with Asset International Modular construction 13 wrcplc.co.uk independent | trusted | innovative

  14. DZIĘKUJĘ ZA UWAGĘ Peter Henley Water Research Centre Ltd, United Kingdom Peter.henley@wrcplc.co.uk

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