92,247
Population equivalent
CLEAN WATER AND SANITATION
Ensure access to water and sanitation for all
Over 2,000 million people in the world live without access to a basic drinking water service, and 3,6 billionhave no access to a basic sanitation service, resulting in avoidable deaths, chronic disease, fewer hours of education and low productivity.
ACCIONA has positioned itself as a key player in the water treatment sector. Its innovative management seeks to resolve the challenges with respect to the shortage of water resources.
CLIMATE ACTION
Take urgent action to combat climate change and its impacts
The generation and use of energy accounts for 35 % of total greenhouse gas emissions in the world. This activity is the largest contributor to global warming. Investment in renewable energy, energy efficiency and other low-carbon technologies will continue to be essential to meet the emerging needs of humanity and to minimize their negative impact on the environment.
ACCIONA considers the fight against climate change and its effects to be a strategic priority. The company works to mitigate greenhouse gas emissions in order to contribute to the progress of society and respond to the main challenges of sustainable development in the areas of infrastructure, water and energy, leading the transition to a low-carbon economy.
The plant has a flow rate of 28,080 m3/day, increasing in rainy weather to 128,000 m3/d, serving a population equivalent of 115. 317 corresponding to the municipalities of Legorreta, Amezketa, Abaltzisketa, Baliarrain, Orendain, Ikaztegieta, Alegi, Altzo, Belauntza, Ibarra, Tolosa, Hernialde, Anoeta, Irura, Asteasu, Zizurkil, Villabona, Aduna and Andoain, including industrial wastewater.
ACCIONA has already designed and built a dozen wastewater treatment plants in the Basque Country, including Apraitz (Elgoibar), Alto Oria (Legarreta), Ondarrea and Bergara, with a daily flow of nearly 200,000 cubic meters, serving a population equivalent of more than 300,000 people. In addition, it operates and maintains another eight, which treat almost 23,000 cubic meters per day, including those of Munguía or Gorliz.
General Information
- Entity: Gipuzkoa Provincial Council
- Location: Aduna, Guipúzcoa
- Population: 92,247 eq/inhab
- Flow: 28,080 m3/day
Key points
Technical data
- Average DBO5: 246 mg/l
- Head in DBO5: 3919 kg/l
- Average S.S.T.: 294 mg/l
- Head in S.S.: 8,263 kg/d
Treatment
- Coarse solids well
- Coarse solids breakdown
- Raw water pumping
- Fine solids breakdown
- Sand trapping - grease trapping in 2 lines
- Distribution pit
- Primary settling in 2 units
- Storm abatement tank 1 unit
- Primary sludge pumping
- Flow metering
- SBR biological treatment
- Excess sludge pumping
- Primary sludge thickening
- Biological sludge floater
- Sludge digestion
- Filter press sludge dehydration
- Centrifuge sludge dehydration
- Sludge silo storage
- Ancillary services
- Electrical equipment
- Control equipment
- Control, Storehouse – workshop and Staff Buildings