Villenouvelle

Vertical flow reed bed filter (French system) followed by a trickling filter and a treatment with apatite treat the pollution of raw domestic sewage. Capacity : 1500 p.e. Vegetated effluent discharge area before final reject into the small river "Merderic".

Additional Info

  • In operation since: 2013
  • Type of wastewater treated: Domestic
  • Hydraulic load: 244 m³/day
  • Organic load (PE): 1500 PE
  • Organic design load (kg BOD/day): 90
  • Location: Villenouvelle (Hte Garonne)
  • Client: SMEA Hte Garonne
  • Stage 1 type: French system
  • Stage 1 surface area (m²): 1129
  • Stage 2 type: Vertical flow, saturated
  • Stage 2 surface area (m²): 100
  • Stage 3 type: Other
  • Stage 3 surface area (m²): 70
  • stage 4 type: Other
  • stage 4 surface area (m²): 300
  • Needs:

    Treatment of domestic sewage for 1500 p.e. with specific requirements on nitrogen and phosphorus treatment before final reject.

  • Solution:

    Reed bed filter (French system) assures primary and secondary treatment, followed by a trickling fitler for polishing and nitrification. A tertiary treatment with apatite removes phosphorus. The treated wastewater goes through a vegetated effluent discharge area before final reject into the local river Merderic.

  • Benefits:

    Sustainable and high performing wastewater treatment plant with low energy requirement and easy maintenance. Guarantee on the outlet quality : BOD5 : 25 mg/l, COD : 125 mg/l, SS : 35 mg/l, TKN : 15 mg/l, TP : 10 mg/l. Design and Build : Epur Nature. Established : 2013.

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