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Urban waste management is a complex, diverse and hopeful area. Rapid urbanization in African countries has caused environmental degradation and it is enough to pass through any African city to see the manifestations of this problem. Indeed, it is not the amount of waste produced that is the problem, but rather the inability of governments and disposal companies to dispose of it. It is for this reason that EDE has set up large and experienced multidisciplinary teams to support governments, local communities and industry in integrated waste management across different fields.


EDE has participated with countries in developing expertise for:
  • . The development of national sanitation policy and strategy within the framework of the MDGs and currently within the framework of the SDGs.
  • . Development, capacity building for field operators in the design, construction and maintenance of sanitation facilities.
  • . Marketing and disseminating innovative ideas from positive experiences and lessons.

The firm has carried out major studies in partnership with other sector structures for the production of the Dakar Master Plan for Sanitation (PDA) for wastewater and the Dakar Master Plan for Drainage (PDD) for rainwater.
These studies have enabled the Dakar area to be crisscrossed, taking into account the suitability of the Dakar soils for sanitation. Areas suitable for autonomous sanitation have been demarcated.


Semi-collective sanitation has made it possible to target specific populations with a decanter structure capable of being connected to a network.
As part of the Sanitation Program for Peri-Urban Districts (PAQPUD), the firm conducted studies and supervised works on semi-collective sanitation systems in the arrondissement municipalities of Yoff and Hann-Bel Air.
In the commune of Yoff, the districts targeted by the semi-collective system are:
  • The 07 districts constituting the core of the traditional village.
  • Biagui city and its surroundings.

The total target population is estimated at some 27,011 inhabitants , broken down as follows:
  • . 21,000 for the traditional village on 90 ha
  • . 6011 inhabitants for the city Biagui and surroundings on 47 ha

On the other hand, in Hann-Bel Air, the targeted districts are the districts located in areas where the water table is shallow and does not allow proper autonomous sanitation.
The total population in this area is estimated at 19,986 inhabitants over an area of ​​ 74 ha .


This sub-sector is increasingly taking an important place in the management of the sector and rightly so because in the 80s the works of large spans of the State were mainly concentrated in the sewer networks and the stations of treatment which barely affected 10% of the most affluent population.
For almost 10 years, a new concept of sanitation for the majority of the African population has been born.
The collection, transport and treatment of sludge produced in autonomous works with the value chain circuit to interest the private sector within the framework of a Public-Private partnership with States or Municipalities.
Cabinet EDE has become a leader in the design and management of this type of partnership by designing and producing Mud Drain Stations in Senegal, Burkina Faso, Côte d'Ivoire, Benin, etc.
With a long experience in autonomous sanitation, the EDE Cabinet has developed an expertise in the management of sewage sludge. From the storage link to the final treatment, EDE supports municipalities and technical and financial partners in the formulation and definition of operational and optimal strategies for the storage, collection and transport of sludge. His expertise in the design and implementation of a sludge treatment station (STBV) has been confirmed through several STBVs set up in African cities. To this end, it supports customers and partners from the identification of sites, the assessment of sludge quantities, the characterization of sludge to the choice of technological solutions for sludge treatment adapted to the local context. These solutions can be varied and evolved from conventional stations to new innovative technologies, making it possible to co-treat by anaerobic digestion, but also to increase the possibilities for recovering by-products (compost, treated water, electricity, ash, etc.). EDE also offers economic and financial studies for the determination of unloading tariffs with a view to the profitability of the collection service. In the operation phase of the STBV, EDE provides technical assistance in the delegation of public-private service, capacity building for operators, qualitative, quantitative and environmental monitoring of discharge conditions.


This Sanitation sub-sector was also neglected before and during the years 2000-2010.

Structuring projects are carried out according to the sensitivity of political decision-makers and according to the floods that occurred in neighborhoods often in peri-urban areas (the most vulnerable populations).

The services offered by the firm are oriented towards the following axes:
  • . Development of rainwater management policies and strategies.
  • . Political orientations and guiding principles for rainwater management.
  • . The financing of the rainwater sanitation sub-sector which in general is a budgetary allocation from the general state budget, which remains the main resource


EDE actively participates in the implementation of solid waste management projects. It intervenes on all types of waste and supports its clients on the orientation and the choice of a good legal and viable management sector. It benefits from the experience of several African cities in diagnosing and proposing solutions for improving the organizational scheme of the entire value chain (pre-collection, collection, treatment and recovery) through institutional support, technical, environmental and economic assessments, capacity building through:
- Etude de la gestion des déchets de la ville de Conakry ;
- Study of plastic waste management within the UEMOA area;
- Study of the pre-collection of waste in the Gourou watershed, Abidjan.
EDE has particular solid experience in the management and layout of landfills and waste treatment and disposal platforms. From the assessment of the massive waste to the mechanical and biological treatment, including the stabilization of the lockers, the piezometric monitoring, the assessment of the expenses and the realization of PAR, we supported the States in the realization of:
- Etude de reconversion de la décharge de Mbeubeuss à Dakar ;
- Resettlement Action Plan (PAR) for the resorption of the Mbeubeuss landfill;
- Study of conversion of the Mining landfill in Conakry;
To eliminate the harmful effects of the proliferation of waste disposal areas, the development of the informal sector, the weakening of the environment, EDE offers Public and Private Partnerships (PPP) to help companies and operators transform waste into business opportunities like the PPP Project on solid waste management in Dakar.