Capacitive Deionization is being used to clean polluted water.

1. Cleaning our Waters
www.AquaEWP.com

2. Capacitive Deionization (CDI)
• Hybrid of CDI and (patent pending)
EDX Flow Out
– 3 more ways to Purify
– 3 more ways to Flush
• In refinement for 10 years
Conducto
- r
1 Flow In Spacer
VDC
+
• Benefits of EWP X3 Electrode
– More water produced daily
– Faster regeneration time
– 25% less power consumed

6. General Features of EWP
• Less pretreatment than Ion Exchange or RO
• No chemicals
• Purification varies with flow
• One pass process - 80% purify
• Cells in series for higher feed salinity to maintain
purification
• Recoveries of 80% to 96% (with waste recovery)
• Cells never replaced, citric acid PM cleaning
• Voltage or flow of cell can be varied to dial in taste

7. Sample Cell and Power Supply
• Power supply 1.5 VDC Flow
in/out
• Cell ½ gpm net flow
• 80% purification at
1,000 ppm TDS
• Recovery at 80%
• Power consumption
2 watt-hr per gallon per
1,000 ppm TDS

8. City Water Supply
warehouse drinking water system
94% purification-6+ years in service
System long term testing
EWP in water cooler application -- San Antonio City Water (525 us)
55
50
conductivity us
45
40
updated with new power supply
and EPROM board design
35
30
0 500 1000 1500 2000
days in service

9. EWP Testing RESULTS
After 5+ years in operation
What can EWP Remove?
Feed Effluent
ppm ppm % Removed
TDS 280 17 94%
Hardness 260 20 92%
Alkalinity 223 15 93%
Chloride 22 6 73%
Flouride 0.62 0.1 84%
Nitrates 1.72 0.07 96%

10. What Other Primary Pollutants Removed
Results of Fluoride, Arsenic and Nitrate testing
Before After reduction
mg/l mg/l
TDS 260 63 76%
Chloride 7.44 3.7 50%
Fluoride <.1 Non detect 100%
Nitrate (as N) 3.44 Non detect 100%
Sodium 3.39 1.84 46%
Hardness 181 44.4 76%
Calcium 42.5 9.13 79%
Magnesium 18.2 5.24 71%
Arsenic 0.039 Non detect 100%

11. Another Application
contaminant Feed Purified Regulatory Reduction
Effluent Limit
Arsenic 80 ppb 5 ppb 10 ppb 95%
Nitrates 100 .12 10 mg/l 99.9%
mg/l mg/l
Background fluid-300 ppm hard water

12. More contaminants removed than
any other single technology!
Heavy Metals Normal Salts Other
Chrome Calcium Carbonate
Organics
Iron Magnesium Carbonate
( that dissolve )
Copper Sulfates
Pathogens
Silver Phosphates
Per Chlorate
Gold Sodium Chloride
Zinc Chlorides/Fluorides
Nickel
Cadmium Biggest Problems Today
Mercury Nitrates (99% removal)
Arsenic (99% removal)
Lead
Humic Acid (99% removal)
Ammonia (99% removal)
Chromium 6 (99% removal)

13. Commercial Modules
Modules Available
1,2,5, 10, 15, 20, 25 gpm

14. Value Proposition cont..
• Operational Flexibility & Portability
•Easy to operate—simple process
•move the units as water flows change
• 1000’s modules installed—all over world
• Green Technology Choice
•no chemicals
•low power
•low maintenance
•Small footprint

15. The products
Whole House EWP
Water Genie
Water cooler & Water Dispenser

16. WH layout
high level switch
28quot;
54quot;
quot;
18
10quot;
30quot;
40quot; w x 28quot; d x 54quot; h

17. Whole house EWP
• 2 Models: 1,000 ppm max or 2,500 ppm max
• Capacities 500 GPD
Capacity 500 GPD
Purification 80%+ of minerals and
contaminants
% Removal
Waste 20% to 30%
Feed Pressure 20 psig
EWP size 12” W x 16” H x 14 “ d
Electrical @110 VAC 2 amps peak

18. Economic Comparison
EWP Softener
1st Cost $2,500 $1800
installed (WS)
Capacity 250 gpd 250 gpd
Recovery 80% 95%
Electricity .8 wh/liter 0
Maintenance $29 $38
$5/1000 gal water 0.10 /Kwh 5 year amortization 1,000 ppm Feed
Softener 30 grains hardness, 10 lb salt/ft3 resin, 1.25 ft3 resin $0.20 / lb salt

19. Annual Costs
EWP Softener
Installed Cost $500 450
amortized
Maintenance 29 38
OPEX 27 341
Water Waste 114 24
Total $670 $853
Cost per 1000 $7.35 $9.35
gal
Softener is 21% more expensive than EWP

20. Value Proposition
• EWP has
– Better taste
• due to dial for taste feature and no salt in your water
– Healthier
• due to removing more primary pollutants than any other
technology—softener doesn’t remove any
– Lower cost (OPEX and CAPEX)
• Features such as 80% recovery, Citric Acid Cleaning, small
power use, no hassle warranty and service program
– Easier to operate
• due to solid state design, on-board TDS monitor
– Peace of Mind
• for removing all of the primary pollutants, having a salt-less
softened water and no hasslbe warranty and service program
– Green Technology
• Due to no salt discharge

21. Water Genie Specifications
2 models 1000 ppm, 2500 ppm TDS
Capacity 50 GPD
Purification 80%+ of minerals and
contaminants
% Removal
Waste 20% to 30%
Feed Pressure 20 psig
EWP size 6” W x 10” H x 6 “ d
Electrical @110 1/2 amp
VAC

22. Economic Comparison
EWP RO
1st Cost (WS) $250 $150
capacity 50 gpd 50 gpd
recovery 70% 10%
Electricity .8 wh/liter 0
maintenance $29 $88
$5/1000 gal water 0.10 /Kwh 5 year amortization 1,000 ppm Feed

23. Annual Costs
EWP RO
1st Cost 50 30
amortized
Maintenance 29 88
Electricity 5 0
Water Waste 39 821
Total $124 $939
Cost per 1000 $6.77 $51.47
gal
RO is 7.6X more expensive than EWP

24. Value Proposition POU
• EWP has
– Better taste
• due to dial for taste feature
– Healthier
• due to removing more primary pollutants than any other
technology
– Lower cost (OPEX and CAPEX)
• Features such as 70% recovery, Citric Acid Cleaning, small
power use, no hassle warranty and service program
– Easier to operate
• due to low pressure, solid state design, on-board TDS
monitor
– Peace of Mind
• for removing all of the primary pollutants, having a salt-less
softened water and no hasslbe warranty and service program

25. Major System Components
Mini-EWP creates the purified water
Bladder Tank-stores the purified water
Spigot (not shown)- delivers the purified
water from the sink
Install under your kitchen counter

26. Water Dispenser or Water
Cooler
• 2 gallon capacity, 50 GPD
• Counter top appliance
• EWP electronics on the inside
• Sink hookup or permanantly to
plumbing

27. Benefits of Using EWP
• saltless water softener + more
• 1/3 smaller size than RO
• configured into countertop appliance, water
dispenser, water cooler
• designs at 2,500 ppm for POU/POE
• scales small or large
• 80%+ recovery
• lower maintenance--cleaned with citric acid
• no membrane replacement
• One technology for contaminant removal such as
with As, FL, Nitrates, Perchlorate
• better tasting water--purification better with no TDS
creep as with RO

28. Why accept status Quo of today’s
Technology?
Choose EWP?
it’s time to change today!
www.AquaEWP.com