11. 2. Norit XIGA™ dead-end Ultrafiltration Main skills Norit XIGA™-concept: Dead-end low energy consumption, simple design Horizontal small footprint, easy module handling 8 inch world standard for RO Bypass tubes improved fouling distribution between modules, reduced fouling tendency Fully automated In-situ cleaning of membranes operation
22. 4. UF main parameters Flux: Yield per square meter membrane surface Ltr/m 2 .h or lmh TMP: Trans Membrane Pressure P feed – P perm (bar) P f P p Feed Permeate Typical (filtration): 60 – 130 lmh Typical (backwash): 250 lmh Typical (filtration): 0,2 – 0,8 bar Typical (backwash): 1,0 – 2,0 bar
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24. 4. UF main parameters Typical: 15 – 60 min Typical: 30-50 sec Typical: 6 – 48 hrs Typical: 80 - 95 % min Filtration time: Duration of 1 filtration period % Recovery: Average permeate flow Average feed flow Backwash time: Duration of 1 backwash sec CEB interval: Period between 2 CEB’s hrs
30. 5b. Potable water PWN Heemskerk, The Netherlands 2900 m 3 /h PWN Heemskerk, The Netherlands pilotplant 10 m 3 /h Keldgate, United Kingdom 3700 m 3 /h Clay Lane, United Kingdom (6700 m 3 /h)
31. 5c. Seawater SWRO pre-treatment for: Process Water Potable Water Flux 80 - 100 lmh Recovery 80 - 90%
33. 5d. WWTP Effluent From WWTP effluent to: Irrigation Water Process Water Grey Water Potable Water (indirect) Flux 65 - 90 lmh Recovery 75 - 85%
34. 5d. WWTP Effluent Windhoek, Namibië Potable water 850 m 3 /h Baranco Seco, Canaries Process water 1000 m 3 /h
35. 6. Summary Norit Dead-end XIGA TM Ultrafiltration: Large number of applications Fully automated operation, easy operation Compact design with small footprint, easy module loading and replacement Superb filtrate quality; complete removal of SS & micro-organisms partial removal of TOC, COD & BOD