decision support tool for sustainable management of ... · decision support tool for sustainable...

Green RemediationNov 9-10, 2009

STABCONSTABCON

Decision support tool for sustainablemanagement of contaminated

sedimentsGöran Holm, R&D Director

Swedish Geotechnical Institute

Bo Svedberg, Tech LicLuleå University of Technology


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(Lundestad 2005)


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STABCONSTABCON The solution?

(Lundestad 2005)


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Handling alternativesPrincipal fates of

contaminated sediments

Scenario 1 –Beneficial use

Using for ex stabilization of sediments and

beneficial use asmaterial instructures.

No landfilling.

Scenario 2 –Landfill

Sediments arelandfilled.

New materialsneeded forstructures.

Scenario 3 –Sea disposalSediments aredisposed of at

sea. New materials

needed for structures.

No landfilling

Resources:Materials

and energy

Scenario 4 –Fill

Confinedfill behind anEmbankment.New materialneeded forstructures

No landfilling

Scenario 5 –In-situ

Capping or otherprotectiveactions.


No landfilling.

6- Noaction

Pollution ofSeas.


Given: Continousconstruction activitiesin the society


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Reduced use of natural resources needed


STABCONSTABCONBeneficial use of contaminated sediments applying the stabilisation/solidification

method


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Film from Oxelösund, Sweden

Stabilisation/solidification of dredged contaminated sediments to be used

as subbase for port facilities

Stabilization & Solidificationfor beneficialuse in port of Oxelösund


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Pilot- Basin for test


STABCONSTABCON Pilot- Dredging


STABCONSTABCONPilot- Stabilization & Solidification


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Sustainability in a sea of decisions

Content

Process

Content

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Content

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Content

ProcessContent

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no EIA requirement

operational

policies

plans

programs

projects Content

Process

Today - Tomorrow

scopingfollow-up

SEA

EIA

EMSBased on Arts J, (2009)

Content

Process

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Process


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What to and how to measure?

Bild påSvante/Oxelösund


STABCONSTABCON Proposed indicatorsLevel 1 Level 2 Level 3 Commentary

Investment cost including project risk

The cost related to the developer/project owner Economiy aspects

National economy Economy in a broader context

Local protection areas

Impact on nearby environment, including acceptance/worry concering recreation, noise, accidents etc.

Socio-cultural aspects

Regional and national protection areas

Impact on national interests such as culture, power supply, fishing etc, for ex Natura 2000

Risk for contamination of nearby land

Toxic impact on water and land areas

Risk for toxic effect on organisms

Toxic impact on vegetation and organisms

Enviromental impact on a site specific scale

Risk for health effects Toxic impact on humans

Use of finite resources Use of materials and fossil fuels

Use of land and water areas

Enabling or limiting use of areas on land or in water

Environment aspects

Environmental impact on a global scale

Emissions to air and water

Emissions from transport and material manufacturing (for ex green house gases, and acid substances)


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Proposed tools for assessment

• Ecology – EIA with RA & ESA/LCA

• Economy – Investment cost (statutory) and CBA on national economy

• Socio-culture – n.a.


STABCONSTABCON Use of resources

Förbrukning av abiotiska resurser (Metod B)

0,00E+00

1,00E+06

2,00E+06

3,00E+06

4,00E+06

5,00E+06

6,00E+06

Scenario 1(Stabilisering)

Scenario 2(Deponering)

Scenario 3 (Tippning) Scenario 4 (Invallning)

MJ

exer

giin

nehå

ll pe

r fun

ktio

nell

enhe

t

Råolja Olja och diesel (bränslen) Naturgas Kol Lignit Uran Kalksten Bergmaterial Natursand Magnetit


STABCONSTABCONGlobal warming & energy use

0

500000

1000000

1500000

2000000

2500000

3000000

Scenario 1 (Stabilization) Scenario 2 (Landfill) Scenario 3 (Seadisposal)

Scenario 4 (Fill)0,00E+00

5,00E+04

1,00E+05

1,50E+05

2,00E+05

2,50E+05

Global warming potentialEnergy consumption


STABCONSTABCON MCD - Tools

Multi Criteria Decision Tool Web-HIPRE (www.hipre.hut.fi)


STABCONSTABCONCase studies with major ports - ongoing


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Conclusions – Project level1. A sustainable approach should be applied to select

BAT consideringtechnology-economy-environment-social aspects

2. Stabilisation and solidification in the Oxelösund caseBeneficial use of contaminted sedimentsLess energy consumption and global warming

3. The BAT-approach was necessary for Oxelösund4. One project it´s not significant to the Baltic Sea

issue, further decisions levels should be adressed


STABCONSTABCONToday addressing pollutants, tomorrow including climate and resources

Included aspects

Focus for tool

Natural resources Environmental impact

Natural resources and environmental

impact

National economy, natural resources

and environmental impact

Policy, Plan, Program

IAM-RAINS SEI, EIA PA, CBA

Region

EF TMR Environmental

accounting, IOA

Company

Em Ex Environmental accounting

Project/Object

MIPS EIA, RA EIA ESA/LCA CBA

Product

MIPS RA LCA

Substance

SFA, RA

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SMOCS


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Content

Process

Content

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Content

Process

Content

ProcessContent

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Content

Process

no EIA requirement

operational

policies

plans

programs

projects Content

Process

Today - Tomorrow

scopingfollow-up

SEA

EIA

EMSBased on Arts J, (2009)

Content

Process

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SMOCS

Content

Process

SMOCS - Bridging the gaps


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Sustainable Management of

Contaminated Sediments in the Baltic Sea


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Further info and contacts

Göran Holm, SGI Bo Svedberg, LTUCo-ordinator Communications

[email protected] [email protected]

+46 13 20 18 61 +46 730 300 410

SMOCS – www.smocs.eu (introduced late 2009)STABCON - www.stabcon.se, www.stabilgrunn.no


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Thank You!!

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