General data about remediation of polluted soils
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General data about remediation of polluted soils. Sakari Halmemies, DSc (Tech) 7 May 2009. CONTENT. European statistics on soil pollution Activities and chemicals that cause pollution Finnish system for determination of soil pollution Three main approaches to remediation.

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General data about remediation of polluted soils

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General data about remediation of polluted soils

Sakari Halmemies, DSc (Tech)

7 May 2009


CONTENT

  • European statistics on soil pollution

  • Activities and chemicals that cause pollution

  • Finnish system for determination of soil pollution

  • Three main approaches to remediation


European statistics on soil pollution

  • 750.000 polluted sites in Europe

    (Haavisto 2008)

  • soil contamination is number one problem for more than 60 % of Europeans

    (Ademe, Polluted sites and soils)

Fig: Ekokem’s instruction 2/07


Soil polluting activities from localised sources as % of total(European Environmental Agency, 2001)


Distribution and storage of fuels

Sawmills and impregnating plants

Industry

Service of motor vehicles

Gardens

Shooting places

Waste treatment

Chemical laundry

Power plants

Car salvage yards

Boat lacquers

Mines

Activities and chemicals that cause pollution


Distribution and storage of fuelsreturn

Oil products, fuels

MTBE

Fig. http://gallery.kuukuna.net/gallery/v/Raskaskalustoa-merkeitt_in/album32/Union_huoltamo.jpg.html


Sawmills and impregnating plantsreturn

PAH compounds

Chlorophenols

CCA compounds

Fig. http://www.tamk.fi/kmo/images/diat/saha.jpg


Industry return

Oil products

Cyanides

Heavy metals

Arsenic

PAH compounds

PCB compounds

Fig. http://www.npe.fi/service.cntum?serviceType=serviceDocumentSection&documentId=13506


Service of motor vehiclesreturn

Oil products

Fats

Heavy metals

Fig. http://www.dillstrom.fi/media/korjaamo230px.jpg


Gardensreturn

Oil products

Heavy metals

Arsenic

Pesticides

Fig. http://www.puutarhasuokukka.fi/puutarha500px.jpg


Shooting placesreturn

Lead

Antimony

PAH compounds

Fig. http://www.venetpalo.net/ampumarata.JPG


Waste treatmentreturn

Heavy metals

Cyanides

Solvents

Fig. http://www.rosknroll.fi/@Bin/1628879/Munkkaa.jpeg


Chemical laundryreturn

Trichlororethylene

Tetrachlororethylene

Fig. http://lighterfootstep.com.s25460.gridserver.com/wp-content/uploads/2008/06/laundry_dryers_620.jpg


Power plantsreturn

PAH compounds

Dioxin and furanes

Acidic oxides (NOx, SO2)

Fig. http://www.toinenlinja.fi/photos/web/00/00953.jpg


Car salvage yardsreturn

Heavy metals

Cyanides

Oils, acids

PAH compounds

PCB compounds

Fig. http://www.savonsanomat.fi/uutiset/kotimaa/romuta-autosi-ja-saat-alennusta-autokaupassa(120442).ece


Boat lacquersreturn

TBT compounds

Fig. http://www.elisanet.fi/teemu.suuronen/puuvene/halli_4.jpg


Mines

Heavy metals

Fig. http://www.spj.fi/ppk/kuvat/v_k_kostamuksen_avolouhos.jpg


Finnish assessment for determination of soil pollution

Lower advisory value

Treshold value

Unpolluted, but higher

pollutant concentrations

exist

Unpolluted

Polluted

  • exceeding of treashold value starts general risk assessment

  • exceeding of lower advisory value starts closer risk assessment =>

  • a) risk can be accepted b) site has to be remediated

Source: Assessment of soil pollution and need for remediation


Three main approaches to remediation

  • OFF SITE

    • soil or groundwater is transported somewhere to be treated

  • ON SITE

    • polluted masses are excavated and treated on site in transportable treatment plant

  • IN SITU

    • treatment takes place without excavation


Sources

  • Ademe, Polluted sites and soils

    http://www.motorchallenge.fr/servlet/KBaseShow?sort=-1&cid=96&m=3&catid=17583

  • Assessment of soil pollution and need for remediation. In Finnish.

    Instruction of Environmental Ministry. Draft 20 April 2007.

  • Ekokem’s instruction 2/07,In Finnish.http://www.ekokem.fi/attachments/ekokemin_ohjeet/0207_pilaantuneen_maan_kunnostus.pdf

  • European Environmental Agency, 2001

    http://themes.eea.europa.eu/Specific_media/soil/indicators/sources/YIR01SO01.pdf

  • Haavisto Teija, Data bank for soil status, Syke, Soili-seminar 7.-8. May 2008, In Finnish.


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