In operation since: 2008
Type of wastewater treated : Domestic
Hydraulic load: 70 m3/d
Organic load (PE): 250 PE
Organic design load (kg BOD/day): 14
Location : New Caledonia
Client : Town of Pouembout
Stage 1 type : Vertical flow reed bed system (French system)
Stage 1 surface area (m²): 190
Stage 2 type: Horizontal flow, saturated
Stage 2 surface area (m²): 375
Stage 3 type: infiltration basin
Cost: 129,000.00 €
Designed by SINBIO
It was needed to create a new treatment plan with a high pathogen elimination (bathing downstream in the river) in order to replace two deficient waste stabilization ponds.
Two stage reed bed filters (vertical and horizontal), fed by pumping and gravity, plus an infiltration basin. There is no primary treatment; the raw, only coarse screened sewage is fed directly on the first stage beds with storage with storage of filtered dried and mineralized solids on the surface of the beds for at least 10 years.
The plant allows for a high level of treatment and protects bathing in the river from contamination.