Sud Méliane I Wastewater Plant
Wastewater treatment, 37,500 m3/day (350,000 population equivalent) in Tunisia.
Operational
The record
- Country
- Tunisia
- Location
- Ben Arous (south Tunis)
- Coordinates
- 36.750, 10.240
- Technology
- Wastewater treatment
- Capacity
- 37,500 m3/day (350,000 population equivalent)
- Capital cost
- —
- Stage
- Operational
- Owner or client
- ONAS
- Contractor
- —
- Operator
- —
- Finance
- —
- Award or start year
- 1982
- Commissioned
- 1982
Record last checked 2026-09-18.
History
- 1982
Sud Meliane I commissioned at 37,500 m3/day and 350,000 population equivalent
- 2003-02
Capacity expansion tendered with Islamic Development Bank backing
- 2020-12
ONAS launches an extension to 90,000 m3/day under the Depolmed programme, financed by the EU, the EIB and AFD
- 2025-12
Extension works reported about 50 per cent complete and due to finish towards the end of 2026
Sources
7 references
Every field in the record above is taken from the references below. A field that none of them confirms prints as a dash.
- Tunisian Ministry of Environment open data, ONAS list of wastewater treatment plants, 2021 to 2023. environnement.gov.tn.
- The register lists Sud Meliane I in Ben Arous, commissioned 1982, 37,500 m3/day, 15,000 kg BOD5 a day, 350,000 population equivalent; Sud Meliane II is a separate 1982-era entry commissioned 2007 at 40,000 m3/day.
- Vivafrik, Tunisie: l'ONAS lance le projet d'extension de la station d'epuration de Sud Meliane (1 December 2020). vivafrik.com.
- Extension to 90,000 m3/day financed by the European Union, the EIB and AFD. AFD, Depolluting the Mediterranean (Depolmed). afd.fr.
- AFD EUR 60 million to ONAS for rehabilitation and extension of the coastal plants at Sud Meliane, Sousse Nord, Jedaida and Kelibia.
- Web Manager Center, Sud Meliane, un projet strategique de 140 millions de dinars (18 December 2025). webmanagercenter.com.
- MENA Water Review major projects register and PPP pipeline — compiled from procurer publications, development-bank project pages and trade reporting; each record names its source.
Works about 50 per cent complete and due to finish towards the end of 2026, adding tertiary treatment for agricultural and industrial reuse. This row was previously titled Tunis South (SE4). In the ONAS register SE4 is the Nabeul plant; the plant at this record's coordinates is Sud Meliane I in Ben Arous.