regional visions of integrated sustainable infrastructure optimised for neighbourhoods
DESCRIPTION
Urban Water Management Dr Raziyeh Farmani ([email protected]) Centre for Water Systems, University of Exeter, UK. ReVISIONS. Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods. Research. Water Resources Management, - PowerPoint PPT PresentationTRANSCRIPT
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Urban Water Management
Dr Raziyeh Farmani ([email protected])
Centre for Water Systems, University of Exeter, UK
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
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
• UK Context and approach• Research:
– Form– Function
• Conclusions
OutlineOutline
UK water contextUK 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.
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Water Stress levels in EnglandWater Stress levels in England
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
• Impact of urban form
• Trend
• Compaction
• Market led
• Impact of water technology options
• Water efficient appliance
• Rainwater Harvesting (RWH)
• Greywater Reuse (GWR)
Water Supply-demand balance
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
• Sustainable Drainage (SuDS)
• Pond
• Swale
• Permeable Pavement
• Green Roofs
Water technologies
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Water consumption – PCC (Wider South East Water Companies, 2031)
Defra 2030 water use target for England
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Water consumption and %metered households (Wider South East, 2031)
130
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Supply Demand Balance(Wider South East, 2031)
Thames Water, London
Essex & Suffolk Water, Essex
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
General data
2031 Essex & Suffolk Water -
Essex
Thames Water - London
Total Population 1,782,593 7,731,805
Total Properties 825,172 3,391,403
Total Household Metering penetration
71% 52%
Supply-Demand Balance -57.48 Ml/d -311.78 Ml/d
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
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
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Rainwater Harvesting (RWH)
• Average annual rainfall• Available roof area• Number of occupants sharing the roof area• Tank size
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Urban Form
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Tile-based Water Service Optioneering
Detached House Flat
RWH - individual
RWH - communal
GWR - individual
GWR - communal
Swale
Pervious pavements
Pond
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Area Type – Water Service Optioneering
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Land Use – Water modelling framework
Land use Water service optioneering
Tile based data Water Company data
Technology costs and energy
Ward
Water Resource Zone
Water Company
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
Impact of urban form on supply-demand balance
Chelmsford
ML
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
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
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
water demand management option
Total Dwellings
Total Population
Total Demand (Ml/d)
supply-demand balance (Ml/d)
Water saving (GWR, Ml/d)
Supply-demand balance
(GWR impact)
Water Saving (RWH, Ml/d)
supply-demand balance (RWH
impact)
Water Company 825,172 1,782,593 257 -57.5
Trend
Essex water company 885,051 1,808,432 266 -66.3 32.2 -34.1 11.7 -54.7
100% metering 885,051 1,808,432 258 -58.6 32.2 -26.4 11.9 -46.8
Water efficienct appliances (120 l/p/d) 885,051 1,808,432 247 -47 30.8 -16.2 11.6 -35.4
Essex zone’s supply
demand balance
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
South-East EnglandSupply-demand balance
2031 - Companies projection 2031 – Water efficient appliances
Regional Visions of Integrated Sustainable Infrastructure Optimised for Neighbourhoods
South-East EnglandSupply-demand balance
2031 – Water efficient appliances + RWH 2031 – Water efficient appliances + GWR
ConclusionsConclusions
• Water issues increasingly constrain development, yet development itself limits water options, especially innovative ones.
• Shown already there is a tension, between urban form, 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