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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.






At Escurolles, in central France (Allier), a reed bed fed with raw sewage assures primary and secondary treatment for 705 PE , followed by a tricking filter for polishing and nitrification 


  • In operation since: 2013
  • Designed by EPUR NATURE
  • Type of wastewater treated: Domestic
  • Hydraulic load: 105 m³/day
  • Organic load (PE): 705 PE
  • Organic design load (kg BOD/day): 42,3 kg BOD/day
  • Location: Escurolles, Departement of Allier, France
  • Client:  Aumont
  • Stage 1 type: French system
  • Stage 1 surface area (m²): 840
  • Stage 2 type: trickling filter, unsaturated
  • Stage 2 surface area (m²): 60
  • Needs:

    Two stage reed bed filters fed with raw sewage have become very popular in France for the treatment of waste water in rural areas.   However, they have a rather large footprint as far as surface area is concerned. In  the case of Escurolles, available surface area was limited, so a more compact solution had to be found

  • Solution:

     The foot print of the plant was reduced in substituting the second stage reed bed though a recirculating trickling filter for polishing and nitrification.

  • Benefits:

    The advantage of r treatment of raw sewage and sludge in a French type reed bed could be maintained while making the system more compact 

Additional Info

  • Hydraulic load: m³/day
  • Organic load (PE): PE
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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