Water Values - Better habitat future
By Yiwen Wang 1191126
The Flood history of Yarra River: Periodic floods are needed to meet the normal functioning of the ecosystem, but droughts have become more frequent. During urban expansion:
Recent years:
2002/03
2005
1997/98 1999
1982/83
1972/73
1967/68
1959
1952
1934
1923
2009
-Droughts become more frequent -Imbalance between human intervention and natural flow process.
-Overuse of water -Insufficient water resources
1901
1891
1863
1860
1839
-Natural phenomenon -Frequent occurrence -Unique ecosystem -Unique production, living customs with Wurrunjery People
2006/08
Historical Flood:
Flood Year Drought Year
The expansion of Melbourne City in the Yarra Basin
1888
1923
Yearly Storage Levels/GL
Data Source: Melbourne Water. Historical water storage levels. 5 September 2022.
1944
1988
2005
Where the water go in Yarra River Basin?
Historical Water Usage Districts - Cultural Heritage Area - More likely to be in River confluence - have wetlands and billabongs
Does the water used with efficient? The waste of water Main water usage in the municipality:
Present Water Usage Districts - scattered and close to city
-Becomes wastewater or sewerage: -Recycled for reuse of wastewater:
18,500 million litres /year.
95 %
1.5 %, or 266 million litres
The waste of stormwater Banyule Flats (A cultural Heritage area, and River confluence Area)
++
+++
+
+
Rainfalls in the municipality:
+
+
Stormwater enters the city’s waterways:
+
+
Water release for environmental water is little.
Percentage of Existing Water Usage of Yarra
15%
1% Urban Water Supply
10,573
million litres/year,
carried pollution and litter.1
1 “Water Use Facts | City of Melbourne Urban Water.” Accessed May 10, 2022. https://urbanwater. melbourne.vic.gov.au/melbournes-water-story/water-use-facts/.
+ Main Culture Heritage Area
Aquaculture
19,700 million litres/year
Irrational water allocation
1% Industrial and Commercial
77% Irrigation
4% Environment
No need to use clean water to do these things, We need to use the water more efficiently
2% Domestic and Stock Data Source: The Victorian Water Register. The total volume of surface water entitlements record. 5 September 2022. The figure does not include entitlements that are not accounted for in the Victorian Water Register (such as minimum or unregulated river flows and other rules-based environmental water like the Barmah-Millewa Environmental Water Account).
Design Strategy: Saving water with waste water and storm water for irrigation and environmental water release Water Saving System
Main Stormwater Drainage pipe Main Water Drainage pump
Banyule Flats
Purification System
Store Release System
Purification Process
Council Drainage pump Waste Water Drainage pump
Storage Wetland with irrigation or release pipe
Treatment Wetland
Rainfall & Stormwater
Storage Pond
Irrigation Grey Water
Settler pump Anaerobic Filter
Waste Water Black Water
Settler
Baffle reactor
Planted Gravel Filter
Polishing Pond
Environment
Design Area Drainage pipe
-Ea rth No i nk
st L
Existing Residential Area
Existing Stormwater Drainage Pipe
River Gum Walk
Recreation lawn
Private Golf Course Future Grey water Pipe
Creat water saving and purification system in suitable area
Potential Wetland Future Residential Area
Existing Residential Area
Main Water Drainage pump & Purification Waste Water Drainage pump & Purification Storage Wetland Dynamic Release gate
River Gum Walk
Recreation lawn
River Yarra
Private Golf Course
Future Residential Area
Existing Residential Area
Nature Billabong Pattern and flow direction - Cooperation with indigenous people
Billabong
Ball shape
Billabong
Half-moon shaped pool
Billabong
Traingle Shape
Semicircle
Semicircle
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
Billabong
flow direction
Billabong Pattern
Pool
Master Plan
1
2 3
2 3 4
5
1
3
1
Purification Wetland
2
Recreation Lawn
3
Storage Wetland
4
Yarra River
5
Irrigation stream
Detail Plan Layers
Home water partnership for adaptive management
Flood condition in different time Dry
Dry Irrigation objective: Maintain
son
Sea
Maintain river functioning with reduced reproductive capacity Maintain key functions of high priority wetlands Manage within dry-spell tolerances
al S
rm
No
on
eas
Average Irrigation objective: Recover Inprove ecological health and resillence Improve recruitment opportunities for key animal and plant species
t We
son
Sea
Wet to very wet Irrigation objective: Enhance Restore key floodplain and wetland linkages Enhance recruitment opportunities for key animal and plant species
Store Release system: Water release mimicking the natrual process to thriving water heritage cultural Relationship between Seasonal waterflow and creatres
Planting System in Different Seasons: Spring and summer are the best seasons for plants to grow, so more purified environmental water needs to be released.
Rebuild Ecological Systems and Human Activities:
Full Closed
Future Plan Open and close the purified water release systems according to different objectives.
Winter
Full Open
Spring
15 Year: Stormwater and grey water treatment
30-50 Year: black water treatment Half Open
Summer
Another Half Open
Autumn