Construction of the Orbaiceta WWTP and renovation of its East collector
Construction of the Orbaiceta WWTP and renovation of its East collector
Construction of a treatment plant with a stone-packed bacterial bed system and primary, secondary and artificial wetland decanting for the municipality of Orbaiceta in Pamplona, Navarre.
Client:
Navarra de Infraestructuras Locales, S.A. (NILSA)
Location:
Navarre
Period:
September 2019–February 2020
Type of work:
Hydraulic Infrastructures
Typology:
Irrigation stations
Budget:
€238,518.13 (excluding VAT)
Construction of a treatment plant with a stone-packed bacterial bed system and primary, secondary and artificial wetland decanting.
The treated water is taken to the existing network and the current septic tank and is finally discharged into the Irati river.
Bacterial bed: The system distributes the water through two rocker beams (DIN-DON), the water then percolates through the stone filling to the collection channels under the prefabricated concrete grates.
Primary and secondary decanting: Prefabricated 3-metre circular Imhoff tank in polyester, reinforced with fibre glass. Sludge decanting volume of 14.64 m³ and 7.87 m³.
Artificial wetland: Refinery and lamination system, with an area of 115 m² and a depth of 0.80 m, packed with gravel, incorporating 800 plants (typhas), for phytoremediation purposes.
Infrastructure Development: Paving, sealing, the replanting of shrubs and hydroseeding, and a drinking water network.
DETAILS
Technical data
Population served
350 equiv. residents.
Design flow rate
42 m3/d
Rock excavation
595 m³
Collector piping PVC DN250
137 m
137 m
HA-30/P/19/IV+Qb concrete
95 m³
95 m³
HF 3.5 paving concrete with 20 cm thickness
207.90 m²
Planting and hydroseeding
600 m²
Downloads
Gallery
