Brownfield Development

Through PSR Brownfield Developers NV the environment division of Jan De Nul Group can also be engaged for brownfield development.

PSR Brownfield Developers NV was founded in 1999 and was one of the first private project developers in Belgium specifically focussing on the remediation, reconversion and sustainable development of polluted sites, so-called brownfields. PSR, or ‘Polluted Site Reconversion’, targets real estate owners that wish to transfer their immovable property with its environment and development hazards to a specialised party but also works together for very diverse projects with public entities to tackle brownfield and inner city regeneration projects by way of a Public Private Partnership (PPP).

This way, after the demolishing, remediation and redevelopment works and after having obtained all necessary permits, a site that is ready for building is created. Subsequently, these projects can be transferred to interested investors or realised and marketed in-house or through a temporary joint venture with an associate project developer.

 

Belgium, Gas Plant Boom

Remediation and redevelopment of the site.

Remediation and redevelopment of the site.

Key figures
Country

Belgium

Client's name

PSR 2850 NV

Contractor's role

Main Contractor

Period

Excavation and Removal: 07.2013 - 12.2013
Since 2014: Groundwater Monitoring

Technical specs
Equipment

Crane 20T Zaxis 210ZX-07
Crane 8T
Kubota Mini Excavator
Bomag BW120 trilwals

Scope

The site of the previous gas plant in Boom was seriously contaminated with mineral oil, BTEX, cyanides and PAHs. Additionally, there were phenols in the groundwater. The remediation comprised excavation with stability measures (sheet piling in the framework of redevelopment) and open drainage. After the excavation an extraction drain with pump pit was placed on the bottom of the pit.
The foundations of the old gas holders, the old, underground pipes and a 2000 l fuel tank were removed as well.
The location of underground constructions was previously screened by means of radio waves (Groundradar).
The remediation and redevelopment of the site were perfectly geared to one another and a new underground car park was constructed in the excavated, remediated area. The redevelopment implies the construction of a residential apartment building in a green environment.
The groundwater will be monitored further.

Volume

10,237 tons of soil removed for off-site thermal desorption
1,311 tons of soil as building material removed
900 tons of debris removed
Purification plant:
Capacity 2 m³/h
Existing out of: oil/water separator, activated carbon filter and ion exchange resin filter

Type of contaminants

Mineral oil, BTEX, cyanides, PAHs and phenols.

Belgium, Former Gas Plant Lier

Extensive remediation of the previous gas plant within the city centre of Lier by means of selective excavation and transport for the processing of contaminated soils. It concerns a brownfield...

Extensive remediation of the previous gas plant within the city centre of Lier by means of selective excavation and transport for the processing of contaminated soils. It concerns a brownfield remediation in the framework of the redevelopment of the area for 132 residential units. In order to make the remediation possible, the following stability measures have been taken: soldier wall at the side of the public road, closed sheet piling boxes for the excavation up against an active gas cabin and an active groundwater drainage by means of groundwater purification plant (capacity 20 m³/hr). 
Installation of back-up groundwater extraction system by means of drains under the new building.

Key figures
Country

Belgium

Client's name

PSR Brownfield Developers

Contractor's role

Main Contractor

Periode

10.2013 - 12.2014

Technical specs
Methodology

Selective excavation with transport and processing of contaminated soils

Volume

Thermal cleaning: 8,225 ton
Physico-chemical cleaning: 3,757 ton
Building material: 5,605 ton

Type of contaminants

Mineral oil, cyanides, PAHs, heavy metals

Belgium, Brownfield and reconversion project '4 Fonteinen' in Vilvoorde

4 Fonteinen (www.4fonteinen.be) is a large-scale brownfield and city renewal project in Vilvoorde (Belgium) on a total surface of 130,000 m². End 19th...

4 Fonteinen (www.4fonteinen.be) is a large-scale brownfield and city renewal project in Vilvoorde (Belgium) on a total surface of 130,000 m². End 19th century the factory ‘Molens Drie Fonteinen’ was established on this site. It was one of the largest complexes in the history of Vilvoorde. Because of the economic recession and the following industrial stagnation in the eighties the factory itself and the surrounding sites were disused. At this moment the renewal of this site is a strategic project within a large-scale reconversion project, aiming for the redevelopment of old industrial areas in the Canal zone of Vilvoorde. From ‘Molens Drie Fonteinen’ to 4 Fonteinen. PSR Brownfield Developers, a subsidiary of Jan De Nul Group, is co-owner and developer of the site.

 

 

Key figures
Country

Belgium

Client's name

Public-Private Partnership
- City of Vilvoorde
- Waterwegen en Zeekanaal NV
- PSR Brownfield Developers NV (member of Jan De Nul Group)

Contractor's role

Within a Public-Private Partnership, PSR Brownfield Developers (member of Jan De Nul Group) is since 2008 committed to the private (re)development of the project area 4 Fonteinen. Since 2012, a joint venture was concluded with Matexi Group.

Technical specs
Location

4 Fonteinen is a strategic project within the large-scale reconversion area ‘Watersite’ in Vilvoorde, aiming for the redevelopment of underused and often historically polluted industrial areas. Located along the Sea Canal Brussels-Scheldt and the river Zenne, the site has direct view on the park named ‘Drie Fonteinen’. The city center of Vilvoorde is located in the North, the ring road and viaduct of Vilvoorde are situated in the South.

Surface area

13 hectare

Environment

A large number of sites within the project area are dealing with an historic pollution. When purchasing the land, PSR has acquired the majority of the property including the remediation obligations. The demolition of the buildings is currently ongoing and will be followed by the soil remediation (by Envisan). PSR pursues an integrated remediation approach and always looks after, in cooperation with the OVAM, an optimal connection with the proposed redevelopment.

Brownfield covenant

Concluded with: OVAM - City of Vilvoorde - Flemish Government
Objectives: remediation an making the site ready for construction

Development programme

4 Fonteinen will be built in phases and comprises some 950 living units complemented with retail, services and offices supporting the neighbourhood development.

Temporary Alternative Purpose

While this large-scale project is being developed and completed, the private and public partners of 4 Fonteinen want to attribute a positive sense, or a Temporary Alternative Purpose, to temporarily unused areas. This also avoids lack of occupancy and degeneration. In doing so, the creative activation of unoccupied buildings and grounds becomes a driving force for urban development, helps shaping the identity of the new district that is 4 Fonteinen and makes people want to be there, stay there and live there. De Kruitfabriek (www.dekruitfabriek.com), a temporary inspiring meeting place by the canal, fits in with these plans.

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