Sam Ziemann From - Region of Waterloo

Napier-Reid Ltd.Pressure FiltersSalient Features of NR - Pressure Filters• High filtration rate up to 10 gpm/ft 2 (24 m/hr)• High solids holding capacity, and ability tooperate at high pressure loss, resulting inlonger filter runs and reduced backwashwater requirement as little as 2% of plant flow.• High flexibility in mode of operation.• Degree of automation can be provided asper client’s requirement, from completelymanual to fully automatic complete withautomatic control valves, PLC / SCADAcontrol package, and control panel.• Available in vertical and horizontalconfiguration.• Supplied with suitable media: dual bed, multimedia bed, GAC or MD-80 catalytic media foriron and manganese, arsenic, H 2S removal.• Well designed feed water distribution system.• Efficient under-drain collection / backwashdistribution system for minimal pressure dropand proper backwashing.• Efficient backwash and air scour system.• Package design and multi-tank configurationavailable. System can be supplied skidmounted, completely assembled, or loose forfield assembly on concrete pads.• Material of construction - Carbon steel orFiberglass reinforced polyester (FRP),designed for 150 psig pressure.NR - Pressure GAC TowerSouth Chatam, OntarioDesign Flow of each tower:7600 m 3 per day• All CS vessels are designed and fabricatedin accordance with ASME code. The vesselcan be ASME “U” stamped if required.• Carbon steel pressure vessel, interior NSFapproved epoxy lined suitable for potablewater service and prime exterior finished.• All carbon steel vessels provided with liftinglugs and appropriate size manways.NR - Horizontal FiltersIsashi, Lagos, Nigeria• Smaller footprint compared to other systems.• High degree of automation leads to reducedoperator attention and lower O&M cost.Process designers of Napier Reid have over 300 years of cumulative experience.3