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Efficient local solutions for the management and recovery of polluted excavated material
Discover the Southwest Biocenter Platform (BSO)
Located in the Gironde department (33), the Biocentre du Sud-Ouest is a biological treatment platform for polluted soil.
It offers a treatment capacity of 45,000 t/year. Ideally located, 20km from Bordeaux, the facility provides treatment solutions for the entire Nouvelle Aquitaine area.
The South-West biocenter takes care of materials polluted with biodegradable organic compounds such as fuel oil, crude oil, diesel, kerosene. Once recovered, the soil is reused for example as fill material or in landscaping projects.
The agency's expertise
Non-impacted materials, or those that cannot be treated on site, are grouped together and directed towards ad hoc external channels (recovery and/or treatment).
Biological degradation (with or without stimulation) is achieved by conditioning and placing the excavated soil in a biopile or biotank. The control of chemical, physical and biological parameters creates a favorable environment for the development of micro-organisms that will eliminate the organic pollutants.
Taking charge of the complete cycle of treatment of polluted materials until their final recovery, our teams ensure their traceability in the greatest respect of the regulatory and environmental requirements:
- Installation Classified for the Protection of the Environment (ICPE) AP of 12/01/2017 and APC of 24/01/2018, and APC of 25/01/2022
- Acceptance procedure: Waste identification sheet (FID), Prior Acceptance Certificate (CAP)
- Traceability of materials (BSD, weighing, register, TrackDéchets…)
- Autonomous weighing on site by weighbridge with follow-up software for the traceability of the receptions
- Soil, stone and gravel (including excavated material from contaminated sites)
- Solid waste and sludge from soil and groundwater decontamination
- Track ballast
- Sludge from oil separators
- Dredging sludge
waste from grit removal - Waste from sewer cleaning (networks and stormwater management structures)
- Green waste
- Plaster brick
- Polluted concrete
The agency's services
Business sectors

Chemicals and Pharmaceuticals:
The chemicals and pharmaceuticals industries are faced with multiple challenges. The Ortec Group is a key partner in these sectors of activity, offering a global and comprehensive offer adapted to each of its customers: project management, unit shut-down, industrial cleaning, site environmental remediation or waste recycling.
Energy and Nuclear:
With a strong presence in the energy sector for almost 70 years, the Ortec Group offers its expertise to customers. The cross-functional know-how of the Group’s various branches is recognised by the most important players, making the Ortec Group a major player in the world of energy and in particular, the nuclear sector.
Heavy industry:
Thanks to its extensive range of skills, including its expertise in industrial activities, the Ortec Group provides the players in heavy industry with a wide variety of services. These sectors are connected to the production or processing of raw materials such as mines, cement works, plasterwork and paper mills.
Petrochemicals – Oil & Gas:
For more than 40 years, the Ortec Group has been assisting players in the Oil & Gas sector as well as the major upstream and downstream decision-makers in the onshore and offshore oil industry. With a comprehensive service offer from the design to the maintenance of installations, the entire project life cycle is covered by our local teams.
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33127 Saint-Jean-d’Illac
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