Ion Exchange Water Purification System.

1. Ion
Exchange
Water
Purification
System
INDUSTRIAL PHARMACY
GRADUATION PROJECT

2. Ion exchange resin is an insoluble, porous, polymer bead. The beads have
a very high molecular weight and carry a functional group with either
positive (+) or negative (-) charge, known as exchange sites. Negatively
charged resin is called cation resin and attracts positive ions, or cations.
Positively charged resin is called anion resin and attracts negative ions, or
anions.
The strength and characteristics of the exchange sites, determine a resin’s
affinity for certain ions. For example, ions with multiple charges, (e.g.
Ca++) have a stronger attraction to the resin than ions with single
charges. Ions of equal charge are selected by the resin based on
molecular weight. Heavier ions are selected first. Basic water softening
theory originated from this principler.
Basic Principles of Ion Exchange

3. Types of Ion
Exchange
Cation exchange resin
can be divided into two
A-Highly acid cation exchangers
B-Slightly acid cation exchangers
Anion Exchange Resin
Can be divided into two
A-Low alkalinity anionic exchangers
B-High alkalinity ion exchangers

4. Ion exchange water treatment work
 Ion exchange water treatment works by removing material from the water
through the use of water processes such as water softening, and water
deionization. These systems work by exchanging specific ions for other
ions. When it comes to water softeners, magnesium and calcium ions are
replaced by sodium ions. As for water deionization systems, the cations
are exchanged for hydrogen ions, while the anions are exchanged for
hydroxyl ions.

5. water deionization
 ions and make up a large portion of the pollutants in water. These pollutants are
efficiently separated from the water as it passes through the deionized system,
resulting in clean, purified water.
 Water travels through two kinds of ion-exchange resin, which replace positively
and negatively charged particles with hydrogen (H+) and hydroxyl (OH-) ions
 Theoretically, the deionization process can eliminate all remnants of salt from
water. In fact, deionized water can also be free of potentially dangerous elements
such as viruses, germs, and organic matter. DI water systems softens the water by
removing the ionized particles, sodium, and replacing them with hydrogen.

6. Cation Exchange Resins vs. Anion Exchange Resins
Cation Exchange Resins Anion Exchange Resins
exchange positive ions exchange negative ions
Common cations include Ca+2, Mg+2,
Fe+2, and H+1
Common anions include Cl-1, SO4-2, and
OH-1
both types are similar and belong to a
group of compounds called polymers
both types are similar and belong to a
group of compounds called polymers

8. Appearance
available in
various colors
Degree of color
changes
according to
contamination
degree
Particle
Size &
uniformity
resin affects
pressure drop
and system
operating
speed
Moisture
different ionic
forms lead to
different
moisture.
Basic Characteristics of Ion Exchange Resins

17. www.youtube.com/powerupwithpowerpoint
Relatively inexpensive initial
Removing dissolved inorganic ions effectively
Minimal maintenance, Possibility to regenerate resin
Variety of tank sizes, quick installations
Fast results, long-term applications

19. Bacterial
Contamination
Ion exchange resins do
not remove M.O. like
bacteria from the feed
water but sometimes
aid in the bacterial
growth due to organic
matter accumulation
Calcium Sulfate Fouling
when this calcium reacts with
the regenerating sulfuric acid,
it forms calcium sulfate as a
precipitate during the
regeneration process.
This precipitate can foul the
resin beads and can block the
pipes in the vessels.
Organic Contamination
from the Resin
The new ion
exchange resin often
has organic elements
remaining in the resin
beads after
manufacturing

20. 17037
Ahmed Abd El-Moniem El-
Sayed Amer
Ahmed Ramdan Fathy
El-Sayed
17034
Ahmed Abd El-Hamid
Mahmoud Galbt
Ahmed Ashraf Ahmed
Mahmoud
Ahmed Khalid Abd El-
Aziz Abd Allah
Ahmed Abd El-Sattar
Ibrahim El-Berry
Presented
by
17035 17021
17013
17027
Ahmed Abd El-Latif Gad
Allah
17036
Abrar Mustafa Salim
Mohamed Ibrahim
17018
Ahmed Mohamed Abd
Elhamed Hassan
17040
17019
Ahmed Khalid Ahmed Abd
El-Aty