OLYMPUS DIGITAL CAMERAFeasibility study for an integrated management system for municipal waste in the Medjerda Valley, Tunisia

Duration of assign­ment (mon­ths): 46 months
Name of Client: IGIP mbH / Germany, con­trac­tor of ANGed (Agence Nationale de Gestion des déchets) / Tunisia
Financing : KKfW Bankengruppe LIII/b5, Palmengartenstr. 5–9, D – 60325 Frankfurt/ Germany

Start date (month/year): 03/2009 Completion date (month/year): 12/2012

Name of asso­cia­ted Consultants: IGIP mbH (Germany), ICP mbH Karlsruhe

Narrative description of Project:

  • Due to the dyna­mic deve­lo­p­ment of the Tunisian eco­nomy, Tunisia is con­fron­ted with incre­a­singly important quan­ti­ties of waste. In the com­ing years, it is esti­ma­ted a con­ti­nual incre­ase of waste quan­ti­ties of 4 to 5%.
  • In this con­text, KfW deci­ded to fund a new pro­ject “Integrated manage­ment sys­tem for muni­ci­pal waste in the Medjerda Valley”. Municipal waste inclu­des house­hold waste and assi­mi­la­ted sewage sludge, slaugh­ter­house waste, indus­trial waste, earth exca­va­tion and medi­cal waste.
  • The aim of this pro­ject is to deve­lop and imple­ment a waste manage­ment con­cept for muni­ci­pal waste for the Medjerda Valley (area of 16,000 km²) for a time hori­zon of 20 years (collec­tion, trans­port, trans­fer, tre­at­ment and recy­cling, land­fil­ling). The pro­ject was divi­ded into 3 steps:
  • Phase 1: Current situa­tion ana­ly­sis (SWM sys­tem, eva­lua­tion of waste data and waste analysis)
  • Phase 2: Concept study and design
  • Phase 3: Feasibility study and design for appro­val for two sce­n­a­rios (only land­fil­ling and waste tre­at­ment with landfilling)
  • According to the study, the popu­la­tion in the pro­ject area in 2009 amoun­ted to approx. 647,000 inha­bi­tants for an annual waste pro­duc­tion of 150,000 t / year. Until the year 2033, an incre­ase of the pro­duc­tion of muni­ci­pal waste to 253,000 t / year is plan­ned for a total popu­la­tion of 836,000 inha­bi­tants in the pro­ject area.
  • The fea­si­bi­lity study has com­pa­red two sce­n­a­rios: the first one con­si­de­ring only land­fil­ling and the second con­si­de­ring the tre­at­ment of waste and land­fil­ling. Finally, the study has recom­men­ded the second sce­n­a­rio. This inclu­des the con­struc­tion of two new regio­nal land­fills at the sites of “Erroumani” in the nort­hern of the Medjerda Valley and “Les Salines” in the sou­thern of the Medjerda Valley. In addi­tion two tre­at­ment faci­li­ties (MBT), one on each land­fill site, have been plan­ned for the tre­at­ment of the whole waste quan­ti­ties, and 38 trans­fer sta­ti­ons in the pro­ject area. Between 2014 and 2033, the plant of “Erroumani” will accept 2,461,072 tones of waste and the plant of “Les Salines” 1,713,623 tones. The cho­sen lining sys­tems for both land­fills is a com­po­site liner (com­pac­ted clay liner + HDPE geo­mem­brane). Leachate gene­ra­ted of each land­fill will be trea­ted directly on site.
  • The next step (Phase 4 expec­ted in 2014) will be the waste sys­tem detailed con­struc­tion design for the land­fills and MBTs, the pre­pa­ra­tion of ten­der docu­ments (con­tract con­di­ti­ons, tech­ni­cal spe­ci­fi­ca­ti­ons, drawings, sup­por­ting docu­ments) and the assi­s­tance with the award of contract.

Description of actual services provided by your staff within the assignment:

  • Waste cha­rac­te­riz­a­tion and ana­ly­sis (amount, com­po­si­tion, heavy metals, …)
  • Collection and eva­lua­tion of waste data
  • Preparation of a solid waste manage­ment mas­ter plan for Medjerda Valley taking into account the insti­tu­tio­nal, ope­ra­tio­nal, finan­cial socio-economical and legal aspects
  • Cost ana­ly­ses and tariff sys­tem for the Medjerda Valley
  • Calculation of land­fill gas and car­bon credits production
  • Feasibility study for a new waste manage­ment sys­tem: two new land­fills, two bio­lo­gi­cal tre­at­ment plant (MBT with recy­cling) and 38 trans­fer stations
  • Scenario 1: ela­bo­ra­tion of two new land­fill designs (design for approval)
  • Scenario 2: ela­bo­ra­tion of two new land­fill designs and two bio­lo­gi­cal tre­at­ment plant designs (design for approval)
  • Cost ana­ly­sis for the new land­fill and MBT (invest­ment and ope­ra­tion cost)
  • Financial ana­ly­sis of MSWMS