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Abu Dhabi's wastewater project almost complete

The Abu Dhabi Sewerage Services Company (ADSSC) is reaching the final stages of its Strategic Tunnel Enhancement Programme (STEP)

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Abu Dhabi, Waste, Waste management, Wastewater, News

One of the region’s biggest wastewater engineering feats in Abu Dhabi is nearing completion and inspiring other projects in neighbouring Dubai and further afield in Saudi Arabia.

The Abu Dhabi Sewerage Services Company (ADSSC) is reaching the final stages of its Strategic Tunnel Enhancement Programme (STEP), reported WWi magazine.

Costing $1.9bn and started in 2008, the project includes a 41-kilometre long sewer tunnel and also 43 km of smaller diameter new link sewers.

Tripling Abu Dhabi’s sewerage network, the system will provide for an average wastewater flow of 800,000 m3/day, with an ultimate capacity of 1.7 million m3/day by 2030.

Speaking to WWi magazine on the side-lines of the Abu Dhabi Sustainability Week, Alan Thomson, managing director of ADSSC, said: “The link sewers are 95% complete. We are completing the last leg to connect Reem Island onto STEP. All that should be finished by November.”

Another part of the Abu Dhabi project is a large pumping station at Al Wathba.

Thomson added: “The pumping station under construction is now 70% complete and we are scheduling commission to start in the middle of the year (2016). All going well we will continue with that commissioning and decommission of the pumping stations over the next two years.”

Consultancy CH2M, which was responsible for the first stage of Singapore’s Deep Tunnel Sewerage Project (read article), has overseen the delivery of STEP.

It was in 2014 when Abu Dhabi set out ambitious goals to reuse 100% of its wastewater for irrigation purposes by 2018.

Thomon said ADSSC is in discussion with the local distribution companies about the responsibility for the cleaned up wastewater.

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