The project consists in the treatment of household and similar waste in the Governorates of Bizerte, Sousse and Gabès. This project includes a Mechano-Biological Treatment (TMB) facility and a landfill. TMB reduces the amount of waste going to landfill and limits the environmental impact of landfilling of non-recovered fractions. The TMB offers several options:
. Option 1: Recover recyclables (plastics, paper, glass, metals, ...),
. Option 2: Recover recyclables (plastics, paper, glass, metals, ...) and a stabilized organic fraction that can be used as an amendment
. Option 3: Recover recyclables (plastics, paper, glass, metals, ...), a stabilized organic fraction that can be used as an amendment, and a fraction with high calorific value allowing the production of a secondary fuel.
The operation of a TMB installation is schematized as follows:
. The incoming waste deposited by the collection bins is the subject of a first mechanical treatment which consists of opening the bags.
. After opening the bags, the waste is directed to a biological treatment which results in waste water loss and degradation of part of the organic fraction.
. At the end of the biological treatment, a mechanical treatment sorts and separates the waste to capture the various fractions according to the recovery objectives - as indicated above. The residual non-recovered fraction is discharged to landfill.
For the choice of materials to be recycled and valued, in the case of Bizerte and Sousse, the strategic study identifies options 2 or 3 as adapted.
The APS study (preliminary design) considered option 2, which therefore provides for the recovery of recyclable materials and a stabilized organic fraction. For the latter, there is no provision for upgrading as an amendment but for use as a covering material for the operation of the landfill.
The infrastructure of the TMB project includes all the existing infrastructure on the landfill site (weighbridge, administrative building, workshop, car wash station and gas station) as well as the infrastructures specific to the installation of the TMB, which are as follows:
. Access road and internal roads
. Additional weighbridge for weighing trucks to the landfill (after the 2nd stabilization stage)
. Administrative building
. Mechanical workshop for loader maintenance
. Garage for loaders
. Reception and unloading hall
. Post-processing and storage hall for recyclables (bales and containers)
. Pavements in the area of biological treatment activity
. Leachate storage pond
. Surface water retention basin
. Laboratory for analyzes to be performed during the TMB process
The residual non-recovered fraction is discharged to landfill. The landfill receives on average 53% of the quantities received on the TMB.
The extension of the existing landfill is designed to take into account the need for water control and leachate management.
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Project stage info
Stage 1: Initial Government Announcement
Government of Tunisia
Form of project announcement
The Sousse landfill is saturated, its extension was planned by the construction of an inter-bin area between the existing bins 1 and 2. In conjunction to the extension of the landfill, mechanical-biological treatment plant was studied.
The project aims at establishing an integrated waste management system in the Governorates of Bizerte, Sousse and Gabès and to improve the sanitary conditions of the neighboring populations of the landfill site.
The project will contribute to the protection of the environment: the project is necessary to eradicate the illegal deposits of waste that are a source of contamination.
This concerns groundwater contaminated by untreated leachates. The project therefore will improve the protection of groundwater.
This also applies to the atmosphere contaminated by the fumes from landfill fires and the dust or light waste. The project contributes to reducing the air pollution corresponding to these emissions.
More particularly, the project will modify the characteristics of the waste to be buried, and consequently reduce the environmental impact of the landfill and the resulting nuisances:
. Reduction of the amount of waste to be landfilled: a 50% reduction in the amount of waste thanks to the TMB.
. Reduction of environmental emissions (leachate, biogas, odours, etc.)
. Reduced leachate management issues. The TMB will reduce the amount of leachate, the leachate concentration, the amount of concentrate to be removed, and will use fresh leachates to humidify the TMB windrows.
. Reduction of the amount of biogas
Indicative timetable of project development
• Procurement phase: 2019-2020
• Construction Phase: 2020-2022
• Operation Phase: 2022-2042
There are no Project documents available at this time
Project looking for additional PPF assistance
Project looking for additional MDB assistance
Is project multi jurisdictional?
Stage 2: Project Investigation
139.9 M USD 400 M TND
Indicative Funding Source
Have any external advisors been appointed yet
Is the project contained in national/sub national infrastructure plan or strategy
Please outline any studies (for example environmental, engineering etc.) that will be completed prior to a full business case development
Social and Environmental impact study, Feasibility study, Preparation of the PPP tender documents for the project