Additional Info

• In operation since: 2014
• Type of wastewater treated: Domestic
• Hydraulic load: 600 m³/day
• Organic load (PE): 250-4000 PE
• Organic design load (kg BOD/day): 240
• Location: Bauduen, Var -France
• Client: Municipality
• Stage 1 type: French system
• Stage 1 surface area (m²): 2400
• Stage 2 type: Vertical flow, unsaturated
• Stage 2 surface area (m²): 1600
• Stage 3 type: Other
• Stage 3 surface area (m²): 2400
• Needs:

  Efficient and reliable treatment system for a village with high population fluctuation between winter -250 PE- and summer time -up to 4000 PE. Looking for high level of treatment to protect the nearby lake and its bathing area. 

• Solution:

  2 VF reed bed filters, recirculation on the second stage, UV treatment for pathogens removal, polishing area of 2400 m2 with infiltration. Minimum outlet quality in concentration : BOD5 : 20 mg/l, COD : 90 mg/l, SS : 15 mg/l, TKN : 35 mg/l.

• Benefits:

  The reed bed system (French design) allows for a high quality of treatment during all seasons and is very tolerant to population and pollution load variations. Maintenance requirements are minimal compared to intensive solutions. This is a cost-effective solution with a good landscape integration which protects the lake renowned as one of the purest in France.