International Symposium ,Re-Water
Water reuse: Energy, water and nutrients
Keynote Bruno Tisserand - Veolia Water
Braunschweig, Germany, November 21st, 2011
Outline
Water stress in Europe
Reuse as mitigation option
Survey on water reuse in the EU
Regulatory framework
Water reuse applications
2 -
Water reuse applications
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Water exploitation
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Treated Wastewater – A key resource
An alternative resource toward a closed circle of freshwater.
An attractive option for increase water supply in water-scarce and semi-arid zones and peri-urban settings.
Availability of reliable and cheap inputs.
A significant potential volume.
4 -
A significant potential volume.
Many applications
Irrigation, aquaculture, landscape irrigation, groundwater recharge, urban and industrial uses, recreation and environmental uses.
20 million ha / 300 million ha – total irrigated area in the world.
No consensus in the regulation of different countries!
Economic issues are superficially addressed.
Differences between stakeholders perception.
Water scarcity
Changes in annual run-off in river basins in Europe by 2070 reference
year 2000
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Water reuse as water stress mitigation option
Provide additional water where
natural resources are not available
In sufficient quantity or quality
At the time of peak demand
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Survey on water reclamation and reuse in EUREAU countries
Qualitative
I General information
Strategic plans, consideration in water policy / management
II Regulatory frame
Type of regulation, scope of regulation
III Economic aspects & incentives
7 -
III Economic aspects & incentives
Cost analysis, cost recovery, evaluation of benefits
IV Statistical aspects
Data collection, assessment and accessibility
Quantitative
Amounts recycled per type of reuse
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Current regulatory frame
Legislation
Technical norm
Recommendations
Standards under
development
8 -
development
No specific regulation
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Regulated uses
Reuse application UK NL BE FR ES PT IT GR CY
Agricultural irrigation (AGR) x x x x x X
Industrial uses (IND) x x x x
Urban uses (URB) x x x x x
Irrigation of public greens x x x x x
Domestic uses (performed by private persons in their x x
9 -
Domestic uses (performed by private persons in their
private homes) (DOM)x x
Recreational uses (REC) x x x x x
golf course irrigation / sports grounds x x x x x
Environmental / ecological uses (ECO) x x x
Aquifer / Groundwater recharge (AQR) /GWR) x x x
Not regulated / not addressedRegulated / permitted use
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Status of water reuse – annual amountsD
ata
fro
m s
urv
ey a
nd
AQ
UA
RE
C r
esu
lts
ww
w.a
qu
are
c.o
rg
10 -
Da
ta f
rom
su
rve
y a
nd
AQ
UA
RE
C r
esu
lts
ww
w.a
qu
are
c.o
rg
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Regulated parameters
UK NL BE FR ES PT IT GR CY
Product quality x x x x x X
Limit values for water quality for different uses x x x x
Process
Removal rates / treatment efficienncy x x
Monitoring frequencies x
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Monitoring frequencies x
Code of good practice x X x
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Unrestricted irrigation limit values
100
1000Limit values for E. coli for "good" and "excellent" water quality of coastal waters (Bathing Water Directive -2006/7/EC)
CF
U/1
00
mL
12 -
Fecal coliforms E. coli
0,1
1
10
ES PT IT FR CY GR IL California WHO
*Total coliforms
*
CF
U/1
00
mL
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Reclaimed water reused as a percentage of irrigation water demand
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Timeline of regulations
2000 2005 20102007200319971991 2012
14 -
2000 2005 20102007200319971991
1989
Urban Wastewater
treatment Directive
(271/91/EEC)
� Pollution reduction /
Emission control
Water Framework Directive
(2000/60/EC)
�Integrated water resources
management (RBM)
�Good status of water
resources by 2015
2012
Blue Print for Water, Review of
– river basin management plans
– the Strategy for Water Scarcity and
Droughts
– the vulnerability of water and
environmental resources to climate
impacts and man-made pressures.
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Conclusion
Water reclamation and reuse across Europe
Is NOT restricted to Southern Europe
is motivated by
Lack of sufficient conventional water resources
Economic advantages over developing additional conventional resources
15 -
Economic advantages over developing additional conventional resources
Energy, water and nutrients savings
Is framed by a variety of regulatory approaches
Will play an important part in achieving more sustainable water management
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