GWT Gold Sponsor @ Wetpol2023



Wetpol Sponsors



Don’t miss GWT presentations at this year’s conference:

10th International Symposium

On Wetland Pollutant Dynamics and Control

10 – 14 September 2023 | Bruges, Belgium


Chiara Sarti, Anacleto Rizzo, Riccardo Bresciani, Fabio Masi, Alain Petitjean, Ania Morvannou, Jan Schuetz, Flor Louage, Vaidotas Kisielius and Dr. Jaime Nivala (keynote) will present work which has been authored or co-authored by GWT members.





Marcy Etoile CSO overflow

Full scale pilot plant treating CSO overflow in the Greater Lyon area.

GREATER LYON, Municipality « MARCY ETOILE» , Rhône (69)

Treatment of CSO (Combined Sewerage Overflow)

Designed and constructed by SINT/EPURNATURE

530 m2 ( 2 * 265 m²),  storage capacity 1200 m3    (annual rain  event)

Additional Info

  • Type of wastewater treated: Domestic
  • Type of wastewater (other): CSO overflow
  • Needs:

    The main sewers going from the periphheral areas  to the wastewater treatment plants of Greater Lyon are overloaded during rain events.  Greater Lyon is looking for alternative solutions to constructing new sewers, which is extremly expensive.

  • Solution:

    This pilot plant is part of a move by Greater Lyon to treat stormwater directly in the peripheral areas and thus to alleviate hydraulic loadings of the downstream sewer. 

  • Benefits:

    Excess stormwater in the combined sewerage systems can be stored and treated in the peripheral areas of Greater Lyon, in facilities wich integrate well into the periurban landscape. 

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The IWA Specialist Group on Wetland Systems for Water Pollution Control is organizing two new online events of YWP career pathways series where established professionals of the field will share their experiences and views on career opportunities in the wetland world.

21st of September at 2:00 pm (CEST), Gabriela Dotro (Senior Researcher at Cranfield University), Link

15th November at 1:30 pm (CET), Scott Wallace (CEO Naturally Wallace - GWT founding member), Link