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

11 -

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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