With many years of experience in geoenvironmental engineering and waste management, Ecogeos offers a wide range of technical services in these fields. With a multidisciplinary team, Ecogeos now also offers its expertise in cross-functional projects, particularly concerning the achievement of states of the art and the coordination of research programs.

Characterisation tests in waste materials

• General characterisation (sampling, composition)
• Physical characterisation (density, global porosity)
• Biological characterisation (TOM, OOM, BMP, ARS, …) 
• Mechanical characterisation in small and large deformations
• Hydrostatic / Hydrodynamic characterisation
  

Examples of missions carried out:

• Sampling and bio-physical as well as mechanical characterization of waste from closed landfills (ADEME, PARAPHYME project: 2009 – 2012)
• Thesis proposal, in collaboration with the LTHE, on the hydro-mechanical characterization of anthropogenic residues (2011 - 2014)

Waste treatment optimization

• Mechanical preparation of waste before storage (sorting, shredding)
• Bioreactor process with leachate recirculation
• Consolidation of waste by static/dynamic loading in sanitary landfills
•    Etc.

Examples of missions carried out:

• Technical assistance for the implementation of leachate recirculation and the monitoring and control of the Labessière Candeil bioreactor (Trifyl, 2010)
• Scientific assistance within the ELIA project on the evaluation of the environmental impact of four treatment methods for household waste (Veolia Research & Innovation, 2010)

Landfill waste settlement

• Preliminary estimation of the storage capacity
• Optimization of the operational process
• Prediction of post-operation settlements and constructive cap cover requirements
• Evaluation and control of differential settlements

Examples of missions carried out:

• Evaluation of storage capacity and operational optimization of the Lapouyade landfill
• Prediction of post-operation settlements on the la Glacière landfill (Villeneuve-Loubet)

Waste stability in the vicinity of slopes 

• Monitoring of slopes
• Modelling of 2D deformations in cut & fill
• Expert advice

Examples of missions carried out:

• Evaluation of the stability of several landfills slopes during extension phase
• Stability study for the former landfill of Sannerville (ADEME, 2011)

Hydrous and gaseous transfers in landfills

• Hydrous balance
• Equivalence studies
• Estimation of leachate production and optimization of the draining of saturated cells by 3D modelling
• Assistance in the design of the leachate/biogas draining systems
• Projection studies for the biogas production
• Field measurements and analysis
• Recommendations for the treatment of leachate

Examples of missions carried out:

• Establishment of the water balance for the Labessière-Candeil bioreactor (Trifyl, 2011)
• Drainage studies for cells saturated by leachate

Rehabilitation of old landfills

• Audits of former landfills
• Upgrade and requalification of old landfills
• Statutory documents for the suspension of activities
• Development of post-operation monitoring programs
• Energy recovery through the installation of solar power plants on the ground

Examples of missions carried out:

• Determination of strategies for post-closure monitoring (PARAPHYME project, ADEME, 2009-2012)
• Development studies for solar power plants on the ground on former landfill sites (EOLFI, VALECO, 2011 - 2012)

Design and rehabilitation of landfill covers

• Landfill cover diagnosis
• Defective cover repair
• Adaptation of solar covers

Examples of missions carried out:

• Technical assistance for the cover repair of the La Vergne bioreactor (CRPE, 2009)
• State of the art on innovative covers (Veolia Research & Innovation, 2010)
  
  
  
  

Measurement of fugitive emissions of biogas

• Assistance for the method selection
• Fugitive emission measurements at the scale of a site

Examples of missions carried out:

• Scientific assistance in the intercomparison study of methods for monitoring of biogas fugitive emissions (EREF - CRPE, 2010)
• Biogas emission measurements on a pilot site (LTHE, 2011) 
  
  
  
  
  

Vertical extension of landfills

• Expert advice
• Design assistance and dimensioning of passive and active safety barriers

Examples of missions carried out:

• Assistance for the legal compliance of the Roche la Molière landfill extension (2009)
• Expertise mission as part of the extension of the Crépy-en-Valois landfill (2011)

States of the art

• Bibliographical synthesis
• Expert interviews
• Prospective analysis

Examples of missions carried out:

• State of the art concerning methods for energy-environment diagnosis across a territory: identification and development of renewable natural resources (Veolia Research & Innovation, 2009)
• Inventory of methods for the identification and qualification of waste heat at the scale of a territory (2Ei, 2009)
• Analysis and prospective for new pollutants in waste (RECORD, 2011)
  
  
  

Socio-economical studies

• Environmental policies
• Risk management
• Communication
• Public participation

Examples of missions carried out:

• Geographical and social analysis of sanitary landfills in France : overview in 2010 (ADEME, 2010)
• Proximity conflicts around landfills: exploring discourses and representations of the civil society actors (local residents and associations) in the light of the constraints of territorial planning (ADEME, 2011-2014)
  
  
  

Evaluations and surveys

• Evaluations
• Surveys

Examples of missions carried out:

• Evaluation of the research and development program of the ADEME 2000 – 2007 on landfills (ADEME, 2007)

With four years of experience in the management of development projects in Africa and Asia, Ecogeos can undertake integrated missions in the fields of waste management and treatment as well as rural and urban engineering.

In particular, we can offer the following services: evaluations and audits of waste treatment facilities, environmental impact studies, technical and prospective studies.