16 may 2018


one of the highest performing clarifiers in the world boosted by digitalisation

The AQUAVISTATM  team works with the technical department and the data scientists of Veolia to improve the performance of the Actiflo thanks to the digitalisation. In light of the market needs, are developed Aquavista Insight and Assist.
Plant operators are faced with increasing demands for continuous process optimisation, reduction of water, wastewater, chemical and energy consumption, while not jeopardising the process stability and meeting strict regulations. To support clients in this crux, Aquavista Insight aggregates historic data acquired from multiple Actiflo around the world and real-time data from site, and applies analytics developed based on Veolia’s experience in designing and operating water and wastewater treatment plants worldwide.
  • Asset monitoring: Correlation of process data with operational costs
  • Asset improvement: scenarii for
    o Operational cost savings
    o  Effluent quality improvement and stability
    o Throughput increase
  • Asset Benchmarking: Comparison of multiple sites or the same site over different seasons
Aquavista Insight gives the plant managers more peace of mind by:
  • An improved operation of the Actiflo: realtime optimisation of the plant based on historical data and intelligent algorithms.
  • Having a greater stability of downstream treatment: by an optimised clarified water quality, the lifetime of the downstream filters are increased and the process stabilised.
  • Reducing operational costs: reduced polymer and coagulant consumption. In one plant 19,8% chemical savings.
  • Increasing resilience of the operation: improved up-time of the operation and increased predictability of the operation.
  • Ensuring compliance by increase operational resilience.
  • Learning from comparable sites: Evaluate the performance of different sites to apply lessons learned throughout.
By adding Veolia’s process expertise to the new digital tools we can go much further in monitoring and optimizing the quality of treatment. We have access to an “enhanced” process control adapted to each site, which represents a real optimization compared to what we had with scientific formulas alone.
In addition, thanks to the Aquavista Insight dashboard, operators have a global and comprehensive vision of their installations. The operator thus benefits from a continuous
supervision and optimization service.” Philippe Bréant, projects department director, Veolia Research & Innovation.
"In cooperation with our customers, we have carried out several tests on their Actiflo. Aquavista Insight has a real impact on their operating expenses, the processes carried out on the various operations are optimized, which in turn extends the equipment’s durability. We can see a real optimisation of the operation of the plant and water quality”, Philippe Sauvignet, water industrialization manager, Veolia technical & performance department.
The framework under which a plant is operated is challenging: technologies are highly complex, new developments occur at a fast speed, the number of operators is declining and there is often little time for training. In a day to day operation it is thus challenging to solve complex problems or improve operation.
  • Communication platform: Channels to exchange with operators from different sites
  • Virtual process engineer: Specialized support from a network of experienced Veolia experts
  • Online training materials: Documents/ videos on process troubleshooting, maintenance etc.
To support you in this, Veolia is developing AQUAVISTA™ Assist, a suite of digital communication channels and training modules. It is based on a long-term experience of troubleshooting, maintenance and process knowledge that have been compiled into training materials, as well as access to experts at your own convenience.

AQUAVISTA™ Assist will give more agility to Actiflo operators, and will secure the equipment by:
  • Having a direct line to process experts from Veolia to support with day to day questions, pro-actively ensuring that problems are resolved avoiding plant downtime
  • Knowledge sharing with other sites
  • Providing continuous development of operators, by attending training sessions or revising materials at the operator’s own speed and time
  • Facilitating onboarding of new operators by giving them access to a library of stepby- step training videos, troubleshooting support and process knowledge.
​If combined with AQUAVISTA™ Portal, Veolia experts can access real-time data and provide even more powerful advice.
Actiflo Aquavista Scheme





Actiflo is a high rate compact water clarification process in which water is flocculated with microsand and polymer in a Turbomix® draft tube. The microsand enhances the formation of robust flocs and acts as ballast, significantly increasing their settling velocity. The unique characteristics of the resulting microsand ballasted flocs allow for clarifier designs with very short retention times, high rise rates and extremely compact system footprints that are up to 50 times smaller than other clarification processes of similar capacity. It counts more than 1,000 references all over the world, for municipal and industrial water and wastewater treatment over the past 25 years.