Water clarification is a fundamental step in water treatment to remove suspended solids from water and in wastewater treatment.
Offering high-rate clarification, Actiflo is a family of products designed specifically for compact water and wastewater clarification processes.
For the production of drinking water and process water, Actiflo treats surface water, groundwater, seawater and brackish water. This ability is vital as drinking water treatment plants adapt to the impacts of climate change such as storm events and the growing importance of alternative raw water sources.
To ensure water standards are maintained, Actiflo increases the settling speed compared to conventional settling and allows treating a flow rate up to 10 times higher than the sludge bed process.
It is particularly effective in eliminating turbidity, natural organic matter, colour and algae. For the specific needs of industry, Actiflo is also suitable for the treatment of cooling tower make-up water and boiler feed pretreatment.
For municipal and industrial wastewater, Actiflo can be implemented at all stages of the treatment of municipal effluents, including primary and secondary clarification, tertiary polishing and wastewater reuse.
How does Actiflo work?
The high-rate clarification system is based on the ballasted flocculation concept developed by Veolia. It uses microsand and polymer in the flocculation tank to increase the weight of the flocs and hence the water clarification velocity, reaching 40 to 100 times higher velocity than conventional clarification solutions.
It helps our customers across municipal and industrial markets such as pharmaceutical, food and beverage, power, mining, chemical and more, to ensure safe and compliant water supplies.
Main characteristic/Customer benefits
- High efficiency (removal of VSS and turbidity up to 99 %)
- Compact system
- Stable during changes of flow and quality
- Fast start-up and outlet water quality stabilization (10-30 mins)
- More than 1 800 installations all over the world
Typical parameters
- Microsand particle size 80-150 µm
- Coagulation 2 mins
- Flocculation 6 mins
- Total water residence time 16 mins
- Settling rate in lamella sedimentation tank
- 60-100 m/h - drinking, process water
- 100-200 m/h - wastewater