We are starting from……
TAP WATER
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Contaminants in Tap Water
Inorganics Stuff (Salts, heavy metals,
gases, Hypocloride)
Organics Stuff (herbicides, Pesticides,
Detergents, chlorides)
Particolate (silicates, colloidis)
microorganisms (bacteria, pyrogens)
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Available Technologies for
water treatment
Prefiltration
Distillation
Deionization
Reverse Osmosis
Electrodeionization (EDI)
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PREFILTRATION
Application
Chloride compounds removal
Mold and Bacteria Removal
Particles removal
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DISTILLATION
ADVANTAGES
Consolidated technique
Good contaminants removal efficiency
Recondense
Cooling water
by cooling vapor
jacket Low budget investment
Disadvantages
No or low process control
Heat to Delicate Components
vapor
High management cost
Heavy and strong maintenance
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REVERSE OSMOSIS
Advantages
96/98% salts removal efficiency
Osmotic pressure
99% bacteria removal efficiency
Can be controlled and monitored
Easy maintenance
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DEIONIZATION
ADVANTAGES
Easy to use
Total ions removal
Can be controlled and monitored
Easy maintenances
DISADVANTAGES
No Bacteria removal
Short Resins life with high flow
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ELECTRODEIONIZATION
ADVANTAGES
High Ion removal efficiency
No or Very Low maintenances
RO Feed Water High productivity
Ion Exchange Resin
Very low management costs
+ A C A C
- No bacteria contamination
Na+ Cl- OH- Conductive
H+ Cl- Na+ Carbon
Beads
Cl- Na+
OH-
H+ Cl- Na+
Waste
Na+ Cl-
Disadvantages
Product
Sensible to CO2
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RO Feed Water
Electrodeionization Process:
Ion Exchange Resin
+ A C A C
-
how it works
Na+ Cl- OH- Conductive
H+ Cl- Na+ Carbon
Beads
Cl- Na+
OH-
H+ Cl- Na+
Na+ Cl-
Waste
Product
• Electrodeionization (EDI) is a water treatment process that removes
ionizable species from liquids using electrically active media and an
electrical potential to effect ion transport. It differs from other water
purification technologies such as conventional ion exchange in that it does
not require the use of chemicals such as acid and caustic soda. In
traditional ion exchange units, after the contaminants are trapped onto the
resin sites, the resin continues to exhaust and lost capacity. In ED, the
contaminants are continuously removed as they are attracted to one of the
two electrical charges, and they migrate through the resin bed, through ion
exchange membranes and into the concentrate stream where they are
removed from the device. EDI is a polishing technology and requires
reverse osmosis (RO) as pretreatment. The combination of RO-EDI
provides the customer with a continuous, chemical-free system with less
costs and less maintenance compared to classic deionization systems
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Electrodeionization Process:
how it works
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Kinds of purified water
(ASTM classification)
Reagent grade, ultrapure 18.2
M/Ω for analytical uses such as
Type “I” HPLC/AA/ICP/IC….
Analytical grade for
Type “II” pharmaceutical and clinical uses
1…10 M/Ω (0.1…1 microS)
Type “III” Laboratory grade for general use
(washer machine, cleaning, ph
and so on)
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THE RIGHT SEQUENCE:
PRETREATMENT Softener (needed for
water with hardness
more then 15°F)
10..1 micron Filtration
Activated Carbon Filter
for Chloride removal
With efficiency up to 98-
REVERSE OSMOSIS 99%
(RO)
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THE RIGHT SEQUENCE:
EDI module Water production from 3
lt up to … m3/h
quality up to 10 MΩ/cm
(0.1 microS)
UV LAMP For pyrogen free water
(option) production
TANK STORAGE
DELIVERY PUMP
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The Fulltech Solution:
prefiltration module
Rephile RO/EDI
module 5,10,30….120
LT/HR
TANK STORAGE
DELIVERY PUMP
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The Fulltech Solution:
Low cost
Low maintenances
High and constant
efficiency and
performances
Low service cost
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