Wetico wins Taziz water treatment package

18 March 2025

Riyadh-based water utility developer Water & Environment Technologies Company (Wetico) has won a contract to build a comprehensive water facilities package for the Taziz derivatives complex in Abu Dhabi’s Ruwais industrial area.

Kuwait-headquartered Alghanim International, which won the engineering, procurement and construction (EPC) contract to build the utility infrastructure for the Taziz derivatives complex, awarded Wetico the estimated $67m contract.

The package includes the construction of a seawater desalination plant, demineralisation plant, condensate polishing unit and effluent treatment plant.

The seawater intake screening and the pumping unit will have a capacity of approximately 177,825 cubic metres a day (cm/d), while the desalination plant, based on filtration and seawater reverse osmosis (RO) and a second pass of brackish water RO membranes, is 19,880 cm/d.

The demineralisation plant, equipped with continuous electrodeionisation stacks, will have a capacity of around 13,440 cm/d.

The plant will have a potable water capacity of 3,144 cm/d, with carbon dioxide generation and limestones

The facility’s condensate polishing treatment system will have an estimated capacity of 5,370 cm/d, while the wastewater treatment plant, based on moving bed biofilm reactor technology, will have a capacity of 8,109 cm/d.

MEED reported in February that Alghanim International had started construction on the $1bn steam and power cogeneration plant catering to the Taziz derivatives complex.

Known as Project Volta, the steam and power cogeneration facility will supply electricity to the plants built at the Ruwais petrochemicals complex, some 220 kilometres west of Abu Dhabi city.

The new cogeneration plant is expected to be completed by 2028.

Abu Dhabi National Oil Company (Adnoc) and Abu Dhabi National Energy Company (Taqa) awarded the $1bn EPC contract to Alghanim in December, two years after the procurement process began.

Derivatives complex

Taziz is a 60:40 joint venture of Adnoc and Abu Dhabi’s industrial holding company ADQ.

The total investment in building the Ruwais derivatives park will be $5bn. Several derivatives plant projects with an estimated budget of $3bn have been tendered. 

Adnoc signed an agreement with Taqa in June 2021 to construct other utilities in the Ruwais complex, including power, steam, cooling, demineralised and wastewater services.

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Jennifer Aguinaldo
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