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.





St Affrique les Montagnes


Wastewater treatment plant for 1200 p.e. at St-Affrique-les-Montagne, south west of France (Tarn), with 1 vertical flow reed bed combined with a surface flow polishing treatment

Two stages reed bed filters fed with raw sewage have become very popular in France for the treatment of wastewater in rural areas. In St-Affrique-les-Montagnes a cost effective solution has to be found while achieving high outlet quality standards.

Additional Info

  • In operation since: 2009
  • Type of wastewater treated: Domestic
  • Type of wastewater (other): domestic
  • Hydraulic load: 645 m³/day
  • Organic load (PE): 1200 PE
  • Organic design load (kg BOD/day): 72
  • Location: St-Affrique-les-Montagnes, Departement of Tarn, France
  • Client: St-Affrique-les-Montagnes
  • Stage 1 type: Vertical flow, non-saturated
  • Stage 1 surface area (m²): 1440
  • Needs:

    Cost effective solution with outlet quality guarantees : 60 % yield on BOD5 and COD, 50 % on SS 

  • Solution:

    1 stage vertical flow reed bed filter with a surface flow polishing treatment

  • Benefits:

    Cost effective solution with reduced impact on environment, maintaining the advantages of raw sewage treatment and sludge of the French type reed bed

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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