Abu Dhabi Sewerage Services Company (ADSSC) has awarded a contract to Malaysia’s Salcon to build a water recycling plant that will treat Abu Dhabi’s sewage.

The AED55m ($15m) contract covers the design, engineering and construction of the Al-Wathba enhanced treated sewage effluent treatment plant. 

The facility will have a capacity of 6 million gallons per day and will comprise a strainer, an ultra-filtration treatment unit and an ultra-violet light disinfection unit.

The contract includes a five-year operations and maintenance agreement. Plant operations will be managed by an advanced integrated control system.

The water recycling plant will use treated sewage water from two facilities at Al-Wathba and further process it. It will be able to recycle and recover as much as 95 per cent of the effluent supplied, producing water for agricultural irrigation and landscaping. 

The two 300,000cm3/day facilities that will feed Salcon’s water recycling plant are under construction and are due to become fully operational by the end of 2010.

One of the plants is being built by a consortium of Belgium’s Besix and France’s Veolia, while the other is being developed by the UK’s Biwater Group, Kuwait’s Mohamed Abdulmohsin Kharafi & Sons and the local Al-Qudra Holding.

Build Own Operate Transfer (BOOT) contracts for both projects were awarded in January 2008 and the projects reached financial close in October of the same year (MEED 11:1:08).

A series of sewage tunnels will take wastewater from Abu Dhabi Island to Al-Wathba. A tender for an associated sewage pumping station is also underway.