Immobilization zinc ash roads De Kempen (Cranendonck)**

In-situ remediation technique:

Project name: Immobilization zinc ash roads De Kempen (Cranendonck)** Case submitted by: ARCADIS Nederland BV Contact: Mr Joan Ligtenberg Address: Postbus 673, 7300 AR Apeldoorn, The Netherlands Telephone number: +31 55 5815999 Email-address: joan.ligtenberg@arcadis.nl

Country: The Netherlands City/region/county: Cranendonck, Noord-Brabant (future) use of location: Countryside roads Built-up location during the active remediation phase?: No

In situ remediation technique: Explanation technique: Immobilization. The road construction material that is contaminated with zinc is being mixed with cement and another material that will prevent leaching of metals. Also other remediation techniques applied?: No After care needed?: Yes: maintenance. Rationale for the chosen technique: Countryside roads in the Kempen region are contaminated with zinc ash. Project organization ‘Actief Bodembeheer De Kempen’ wants to remove the zin cash and contaminated soil in the surroundings and immobilize the metals in the soil. A pilot remediation in combination with redevelopment of the road has been carried out; which includesimmobilization of the zinc ash and soil contamination by mixing the material with the product ImmoCem. The resulting material is suitable as road material, meting the civil engineering standards for this type of road. He constructor will be responsible for maintenance of the road for the next 10 years.

Treated contaminant(s): Cadmium, Zinc, Lead, Arsenic, Copper. The contamination originates from zinc ash from local industry. Contaminant phase: Soil/pure product Size contamination: 2500 [m3] Depth contamination: 0.50 m below surface level

Soil type: Mainly sand Saturated/unsaturated zone?: Unsaturated zone Permeability: Flow velocity or gradient groundwater:

Remediation goal: No leaching. Remediation goal achieved?: Yes Initial and final concentration and load removal: Active remediation phase: 08 September 2009 to 30 October 2009 Passive remediation phase: Total costs passive/after care phase: € 50000,- Total costs active phase: € 360000,-

Problem owner: Actief Bodem beheer de Kempen Contractor: Arcadis Nederland BV Remediation plan: Geofox Lexmond Remediation research: Competent authority: Provincie Noord Brabant Contact information stake holders: Joan Ligtenberg (Arcadis); see contact details above

Lessons learned: Remarks:

Related techniques:

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