Reusing our urban water resources: from house to city scale Dr Grace Mitchell Institute for...

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Reusing our urban water resources: from house to city scale Dr Grace Mitchell Institute for Sustainable Water Resources Monash University Precipitation Evapotranspiration Imported w ater supply Storm w ater runoff W astewater G roundw ater recharge ~0 Melbourne

Transcript of Reusing our urban water resources: from house to city scale Dr Grace Mitchell Institute for...

Page 1: Reusing our urban water resources: from house to city scale Dr Grace Mitchell Institute for Sustainable Water Resources Monash University.

Reusing our urban water resources: from house

to city scale

Dr Grace MitchellInstitute for Sustainable Water Resources

Monash University Precipitation

Evapotranspiration

Imported water supply

Stormwater runoff

Wastewater

Groundwater recharge ~0

Melbourne

Page 2: Reusing our urban water resources: from house to city scale Dr Grace Mitchell Institute for Sustainable Water Resources Monash University.

Lot scale – i.e. your houseInfiltration of roof runoff

Rainwater tank

Rainwater tank

Greywater reuse

Water efficiency

Page 3: Reusing our urban water resources: from house to city scale Dr Grace Mitchell Institute for Sustainable Water Resources Monash University.

Neighbourhoods and suburbsGreywater reuse

Grass swales

Stormwater harvesting

Wastewater reuse

Page 4: Reusing our urban water resources: from house to city scale Dr Grace Mitchell Institute for Sustainable Water Resources Monash University.

Cities and regions

Water supply dam

Large water & wastewater

treatment plants

EducationRebates

Trunk water mains

Page 5: Reusing our urban water resources: from house to city scale Dr Grace Mitchell Institute for Sustainable Water Resources Monash University.

Implication of scale of solutions..

Important to recognise relationship between technologies and scale

Why? Because the scale has many implications, such as: who installs and/or owns and/or operates the technology required regulations and approvals who pays for it and how it is paid for…