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Dr. Sami Abdel Azeem
th
20 Feb, 2013
What is water purification?
Water purification is the transition of dirty
harmful (Contaminated) water into clean safe
water.
Water purification generally means freeing water
from any kind of impurity it contains such as
contaminants or micro organisms.
WHY PURIFY WATER?
We purify water to get rid of contaminants that
can be detrimental to our health.
To make it safe and palatable for human
consumption.
Chemical methods
Coagulation, flocculation, combined with flotation and
filtration, precipitation, ion exchange.
Physical methods
Membrane-filtration processes (nanofiltration, reverse
osmosis, electrodialysis, . . .) and adsorption techniques.
Biological treatments
Biodegradation methods such as fungal decolorization,
microbial degradation, adsorption by microbial biomass.
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