Pilote with X-Flow membranes
Horizontal modules
Hollow fibers polysulfone membranes 0,8 mm (34 m2 de surface)
4 membranes de 1,5 m par caisson
12 horizontal modules on 2 arrays
Total : 48 membranes
Production : 150 m3 par h
Turbidity raw water : 2 – 15 FTU
Turbidity permeate : 0,013
Backwash every 30 min
Feed water : Surface water, no pretreatment
Recorvery rate : 94 – 95%
Chemical backwash every 4h
1 acid backwash (H2SO4 pH 3)
1 alkaline backwash (sodium hydroxyde, pH 11)
Each chemical backwash duration: 20 sec
Chemical soaking 2 min