Acciona Agua wins contract to operate sanitation system in Asturias, Spain

Spanish water firm Acciona Agua has won a contract for operation, conservation and maintenance of the sanitation system of the Cuenca del Caudal area in Asturias, northern Spain.

Under the contract, the firm will be responsible for maintenance and operation of Consorcio de Aguas owned Baiña Wastewater Treatment Plant (WWTP) and its fifty-four associated installations.
The entire system maintains an annual flow rate of 10 million m3 and serves 84,000 people in the region.

Consorcio de Aguas is the water authority in the Spanish principality of Asturias.

The contract will be valid for four years, starting from August this year. The contract has an option of up to six (ordinary) and one (extraordinary) annual extensions.

The original value of the contract is worth €5m, which can be extended to up to €13m if the contract is extended.

Sanitation system of the Spanish water facility is said to be the third biggest in Asturias in terms of flow rate.

The Baiña facility has a treatment capacity with a maximum flow rate of 138,240 m3/day (primary treatment) and 60,480 m3/day (biological treatment).

It features a comprehensive treatment system which includes a water line with biological treatment and nutrient elimination sytem, a sludge line and thermal drying.

The system also comprises of 40,409m of piping of varying diameters, to make up the general interceptor sewers for the Caudal, Lena and Aller rivers. 15 pumping stations, 30 spillways and nine galleries are also part of the system.

Besides this WWTP, Acciona Agua was also responsible for Maqua facility and the WWTP for the river Gafo in Caldas, both in the Principality of Asturias.

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Image – Acciona Agua will be responsible for the Spanish wastewater treatment plant for four years. Photo: courtesy of ACCIONA