Filtration
Wastewater treatment plant
At the end of treatment in a wastewater plant, water has to respect quality standards, be it a realease in natural environment or a re-use (industrial water). Filtration enables to absorb a temporary increase in suspended solids in this water.
For treatment before re-use, filters are usually between 100 and 200 microns. With a Hectron filter, maintenance is reduced to a minimum.
Before UV, a finer filtration (20 µm) is usually chosen to protect the lamps and guarantee their efficiency
Suitable equipment
AG AUTOMATIC FILTERS
The AG range filters equip several dozen wastewater treatment plants in France. The suction ramp washing system is very efficient and suitable for the clogging materials present in the wastewater treatment plants.
Benefits
- Fully automatic
References
OTV / St Malo Agglomeration (France).
St Malo wastewater treatment plant. As part of the construction of a sludge methanization unit, an exchanger protection filter was added to the treated water leaving the clarifier. AG200 316L DN80 PN10 filter, 300 μm.
Degrémont / Clermont Auvergne Métropole (France), Trois Rivières WWTP.
Clarifier water. Service water production and energy recovery: water/water heat pump exchanger. Supply of automatic filters: two AG400 filters (100 μm) and one AG300 DN150 (200 μm).
Sogea Environnement, Ondres WWTP (France).
Filtration of industrial water at the clarifier outlet. 15 m³/h. AG200 2’’ PN10 filter, 200 μm.
SIVU (Sewage Treatment Plant) in Mégève-Praz sur Arly (France).
The WWTP had a 150 μm AG300 filter for eight years to treat the clarifier outlet water. To further improve water quality, a second filtration stage was added. AG300 DN150 PN10 IP65 filter, 20 μm.
Veolia / Toulouse Métropole OTV
Ginestous Garonne wastewater treatment plant. For use in the new methanization unit, industrial water filtration at the clarifier outlet. Flow rate of 200 m³/h. AG400 DN200 PN10 filter, 200 μm.
