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Tunis-Djerba Waste Management

Tunisia
Stage 3: Start of Project Feasibility / Business Case
Stage 3: Start of Project Feasibility / Business Case
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GOVERNMENT SPONSOR
Government of Tunisia
SECTOR
Water & Waste  >  Solid Waste
TYPE
Greenfield
VALUE
185.4 M USD
PROJECT LOCATION (E.G. MAJOR GEOGRAPHIC REFERENCE)
Tunis Tunis Tunisia 
OPPORTUNITY FOR PRIVATE SECTOR INVOLVEMENT
LAST UPDATED
Q4 2018
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Project data uploaded by:
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Project Description
Tunis waste management project: The project focuses on the treatment of household and similar waste in Greater Tunis. Indeed, it is envisaged to make two waste treatment and disposal sites available. Each of these two sites includes a Mechano-Biological Treatment (MBT) facility and a landfill. The total cost of the project is TND 530 million. MBT reduces the amount of waste going to landfill and limits the environmental impact of landfilling of non-recovered fractions. The MBT also makes it possible to recover several recoverable fractions in the incoming waste, and several solutions are conceivable: . Solution 1: Recover recyclables (plastics, paper, glass, metals, etc.) . Solution 2: Recover recyclables (plastics, paper, glass, metals, etc.) Recover a stabilized organic fraction allowing a valuation as an amendment, . Solution 3: Recover recyclables (plastics, paper, glass, metals, etc.) Recover a stabilized organic fraction allowing a valorization like amendment. Recover a fraction with high calorific value allowing the production of a secondary fuel. The operation, of a MBT 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 is a mechanical treatment that sorts and separates the waste to capture the various fractions according to the recovery objectives - as indicated above. In the case of Greater Tunis, the strategic study identified solutions 2 or 3 as adapted. A criterion of the choice will be the feasibility of the energy valorization necessary for the solution 3. The study identifies the cement plants among the conceivable outlets, specifies that: "To date, the company Carthage Cement is the only cement factory of Tunisia ready to accept and have the opportunity to use the secondary fuel. But it is likely that subsequently other Tunisian cement plants opt for the secondary fuel option." The deadlines for developing acceptance protocols for RDF in cement plants can be quite long, for example because of test campaigns. Consequently, it is recommended not to leave the choice of such a valuation to the sole discretion of the candidates or tenderizers during a tender, but to anticipate as precisely as possible from the feasibility study of the project. The residual non-recovered fraction is discharged to landfill. For the Greater Tunis project, it is envisaged to install the MBT on the sites of the 2 existing landfills (see below). In which case the project will involve the creation or upgrading of the cells needed for storing non-upgraded fractions. Djerba waste management project The project includes: • the collection of solid waste and sweeping in the Perimeter of the Concession; • the design, construction, equipment and commissioning of a mechanical-biological treatment center (MBT) for households, including landfills for non-recoverable residues after bio-stabilization; • the operation, maintenance and monitoring of the new MBT center and existing transfer centers and possibly carried out by the concessionaire, • slaughterhouse waste management For the MBT, the specifications of the project of the concession provides a MBT based on recycling and recovery and bio-stabilization of the ultimate fraction cannot be valued. The concessionaire will therefore aim to maximize the quantities recycled or recovered in the form of solid recovered fuel (SRF) or compost for source-sorted organic waste or other solutions. With reference to the 3 solutions explained above, this is therefore Solution 3, which provides for energy recovery by solid fuel production. The concessionaire will propose viable, cost-effective and modular waste recovery solution that minimize landfilling as much as possible. The waste must necessarily be bio-stabilized before burial in the bins. The objective stated by the grantor is that the burial does not exceed 45% of the volume of the incoming waste (expressed in mass). The bidder proposing the lowest landfill rate will be the best scored technically. However, the proposed landfill rate in the technical offer will be contractually binding. Any solution proposed by the Concessionaire must be the subject of an economic study to justify its interest for the Djerba Municipality in terms of the environment in general and its financial impact on the project. The areas of valorization to be favored are agriculture (clean compost resulting from separated organic waste at the source) and energy. The tenderer may also propose under his responsibility any other waste recovery solution if these are realistic and make it possible to achieve the objectives of this valuation.
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Project stage info
Stage 1: Initial Government Announcement
Completed
Stage 2: Project Investigation
Completed
Stage 3: Start of Project Feasibility / Business Case
Completed
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