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Ajman Wastewater Treatment Plant
Project overview
ASPCL brings together BESIX, the Government of Ajman (GoA) and VEOLIA. ASPCL, the first PPP in the Middle East in this field, built Ajman's entire wastewater collection network and treatment facilities, which were previously non-existent. Through a combination of septic tanks and tanker transportation, wastewater was disposed of in an open lagoon, creating many environmental problems. A network system and treatment, therefore, offers an alternative source that is both sustainable and economically advantageous. With the GoA, BESIX has played a pioneering role in this field. By establishing a modern sewerage system in Ajman, ASPCL has eliminated the risks to public health and environment linked to the discharge of untreated water.
Scope of works
Under a DBFMO contract, BESIX and its partners designed, financed, built and now operate Ajman’s wastewater collection and treatment system. Delivered in 2009, the project includes the full sewerage network, multiple pumping stations and a large-scale treatment plant, where BESIX introduced biogas-to-energy technology for on-site green electricity generation.
In 2018, BESIX completed an extension enabling 400 km of underground sewers to collect wastewater from 175,000 households and transport it via several pumping stations to the treatment plant. The plant also treats wastewater from buildings not yet connected to the network. With a capacity of 140,000 m³/day, it is Ajman’s largest treatment facility, currently undergoing further expansion to accommodate the Emirate’s growing water‑reuse demand.
This 25-year PPP is based on a BOOT concession structure with revenue collection risk shared between the concession company, the government and BESIX Invest.
Key highlights
First environmental PPP in the UAE
Production of green electricity from sludge‑to‑energy
400 - 450 km of sewer networks serving up to 200,000+ connected properties
22 pumping stations supporting the Emirate-wide system
The plant operates 24/7 with an advanced management system
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