Biological treatment of activated sludge in piston flow.
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.
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.
It also has biological treatment by means of prolonged aeration and biological nitrogen elimination with a maximum capacity of 700 l/s. The facilities are complemented by a water reuse system for irrigation and industrial washing, a sludge line designed for sludge dewatering by means of filter presses, and a chemical deodorisation system with an air renewal capacity of 29,000 m3/hour.
It has a primary treatment system with three 30-metre diameter circular decanters with a maximum instantaneous capacity of 1,600 l/s, two of which can operate as a storm tank.
- Project: WWTP Baiña.
- Client: Consortium of Water Supply and Purification of Asturias.
- Location: Mieres (Asturias). Spain.
- Capacity: 43,200 m3/day.
- Population: 86,500 inhabitants.
Large particle screens, fines screens, desander, sand classifier, deoiler and influent flow metre.
Biological treatment of active sludge in the piston flow with nitrification-denitrification. O2 input / Mud recirculation / Sedimentation.
Thickener, floater, dehydration and post-treatment.