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Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

Urban Water Management Dr Raziyeh Farmani (r.farmani@exeter.ac.uk) Centre for Water Systems, University of Exeter, UK. ReVISIONS. Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods. Research. Water Resources Management,

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Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

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  1. Urban Water Management Dr Raziyeh Farmani (r.farmani@exeter.ac.uk) Centre for Water Systems, University of Exeter, UK ReVISIONS Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

  2. Research Water Resources Management, Groundwater contamination, Denmark Integrated aquifer management, Spain Flood plain management, Hungary and Ukraine Asset Management, Water distribution system, Portugal, UK, Iran Irrigation networks, Spain Water supply, Czech Republic Hydroinformatics Development and application of optimisation techniques to engineering systems ICT (smart water metering) for supply-demand management Urban Water and sustainability, UK and Italy

  3. Outline • UK Context and approach • Research: • Form • Function • Conclusions

  4. UK water context • Reduce per capita potable water demand to 130 l/p/d by 2030 • Improve surface water management, especially to manage flood risk • Continue progress in improving environmental water quality to Water Framework Directive ‘good’ status • Reduce greenhouse gas emissions (80% by 2050). • Provide 200,000 new homes by 2016.

  5. Water Stress levels in England

  6. Water Supply-demand balance • Impact of urban form • Trend • Compaction • Market led • Impact of water technology options • Water efficient appliance • Rainwater Harvesting (RWH) • Greywater Reuse (GWR) ReVISIONS Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

  7. Water technologies • Sustainable Drainage (SuDS) • Pond • Swale • Permeable Pavement • Green Roofs ReVISIONS Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

  8. Water consumption – PCC (Wider South East Water Companies, 2031) Defra 2030 water use target for England

  9. Water consumption and %metered households (Wider South East, 2031) 130

  10. Supply Demand Balance (Wider South East, 2031) Essex & Suffolk Water, Essex Thames Water, London ReVISIONS Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

  11. General data ReVISIONS Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

  12. Greywater Reuse (GWR)Essex & Suffolk Water - Essex Greywater supply (71.6 l/p/d, 50% of domestic water demand) Hand basin Shower Bath Demand for greywater (35.6 l/p/d, 49% of domestic greywater supply) Toilet

  13. Rainwater Harvesting (RWH) Average annual rainfall Available roof area Number of occupants sharing the roof area Tank size

  14. Urban Form

  15. Tile-based Water Service Optioneering Detached House Flat UWOT? ReVISIONS Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

  16. Area Type – Water Service Optioneering ReVISIONS Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

  17. Land Use – Water modelling framework Tile based data Land use Water service optioneering Technology costs and energy Water Company data Ward Water Resource Zone Water Company

  18. Impact of urban form on supply-demand balance Chelmsford ML

  19. Water demand management Essex Water Resource Zone • Water Company projections for demand and meter penetration • Water Company projections for demand and 100% meter penetration • Water efficient appliances ReVISIONS Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods

  20. Essex zone’s supply demand balance

  21. South-East EnglandSupply-demand balance 2031 - Companies projection 2031 – Water efficient appliances

  22. South-East EnglandSupply-demand balance 2031 – Water efficient appliances + RWH 2031 – Water efficient appliances + GWR

  23. Conclusions • Water issues increasingly constrain development, yet development itself limits water options, especially innovative ones. • Shown already there is a tension, between urbanform, technological solutions and resulting costs. • Intend to explore technological options further, especially synergies with other infrastructure. • Large challenges to overcome as we balance societal, economic and environmental needs

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