Operation, preservation and maintenance of the sanitation system of the Igualada Group
Operation, preservation and maintenance of the sanitation system of the Igualada Group
The Agència Catalana de l’Aigua (Catalan Water Agency - ACA) has awarded the contract for the operation, preservation, and maintenance of the water purification systems of Calaf, Igualada, Sant Martí de tous, Jorba and Sant Martí.
Client:
Agència Catalana de l’Aigua (ACA)
Location:
Barcelona
Period:
2017-2020, prorrogable 2 años más.
Type of work:
Operation and maintenance
Budget:
7.539.185 € (IVA Excluido)
The works to be performed include the operation and maintenance of the purification facilities of the Igualada Group in the Anoia River basin, in order to ensure the proper functioning of those facilities and the quality of the water treated there.
The total volume treated is about 21,000 m3/day for a population equivalent to 290,000 people, in 5 sanitation systems covering a network whose total length exceeds 30 km.
DETAILS
Technical data
Igualada Group Sanitation System
The system collects and treats the wastewater of the cities of Igualada, Sant Martí de Tous, Calaf, Jorba, and Sant Martí de Sesguioles, in the province of Barcelona.
The Igualada sanitation system consists of 15 km of collector lines with 2 external pumping stations and a WWTP with a capacity of 21,173 m3/day. The treatment process is biological, using the activated sludge method to remove nitrogen and phosphorus. It consists of pre-treatment, physical-chemical treatment, settling-thickening, anaerobic digestion, and dehydration through the use of centrifuges, and disinfection for re-use of the water for plant services. It also has a co-generation system using 5 microturbines with a generation capacity of 325 kW.
The Sant Martí de Tous sanitation system consists of 2 km of collector lines with an external pumping station and a WWTP with a treatment capacity of 240 m3/day. The treatment process used in the WWTP is biological, using the activated sludge method to remove nitrogen and phosphorus. In addition, it is equipped with a bar screen, settling-thickening tank, centrifuge-based dehydration, and disinfection.
The Calaf sanitation system consists of 3 km of collector lines and a WWTP with a capacity of 800 m3/day. Its WWTP uses a biological treatment process (activated sludge) with removal of nitrogen. It is equipped with a bar screen, settling-thickening tank, thermophilic aerobic sludge digestion, dehydration through the use of a centrifuge, and disinfection.
The Jorba sanitation system consists of 1.8 km of collector lines and a WWTP that uses the prolonged aeration treatment method. It is equipped with a bar screen and a sludge settling-thickening tank. Its treatment capacity is 200 m3/day.
The Sant Martí de Sesgueioles sanitation system has a capacity of 107 m3/day. Primary treatment in the WWTP is with a septic tank, and secondary treatment with a subsurface flow filter.
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