A brownfield strategy with green shoots

Khalil Attia, chief executive of Tunisia’s Office National de l’Assainissement (ONAS) spoke to GWI about plans to upgrade the country’s wastewater treatment infrastructure.

The priorities at Tunisia's main wastewater agency are changing. Having earmarked 20% of its TND1.3 billion budget for 2007-2016 for the rehabilitation and extension of existing plants, the Office National de l'Assainissement (ONAS) is now preparing to launch a TND232 million (€127 million) programme to refurbish and expand 19 wastewater treatment plants and 130 pumping stations across ...

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