1. The Maritime Alliance Symposium on Desalination LFNano™ Membrane System January 28, 2011

2. Who is DXV Slide 1 40 years of running water treatment Saigon Long Beach Anaheim

3. Alter contaminants or remove them Slide 2 Physical removal can be expensive Chemical Biological Physical

4. Like your house’s air filter… Slide 3 …water treatment membranes clog up

5. Washable filters save money at home… Slide 4 …but require a little more work

6. Cleaning frequency … Slide 5 … fewer is better 1 to 2 times per year

7. Water treatment membranes get washed Slide 6 …10,000 to 25,000 times per year “Membrane Fouling”

8. Low Fouling Nanofiltration Slide 7  Unique element configuration  Commercially available flat sheet NF  Feed water circulation  Online fouling avoidance system  Unique element configuration  Commercially available flat sheet NF  Feed water circulation  Online fouling avoidance system No Chemicals

9. LFNano™ Pilot Tests Slide 8 Second generation pilots currently operating

10. LFNano™ Pilot Test – WWTP Effluent Slide 9 10 minutes8 months TraditionalLFNano™ Time to 5 PSI Pressure Drop

11. Significance? Slide 10  Low cost physical barrier  New membrane economics  Modular/scalable  Direct membrane treatment of wastewater  Low cost physical barrier  New membrane economics  Modular/scalable  Direct membrane treatment of wastewater

12. Applications Slide 11  Water reclamation  RO pretreatment  Drinking water  Wastewater treatment

13. Fouling Limits Membrane Adoption Slide 12 ‘The next great water technology will be the one that finds a solution to membrane fouling.’ -- Christopher Gasson Editor, Global Water Intelligence October 2010

14. Contact: Michael Motherway mike@dxvwater.com (714) 258-8559 Questions?