1-RAW WATER QUALITY:
The treatment of raw water is required for several reasons of which the removal of germs of deseases is the most important. The surface raw water running in rivers ,canals,streams...etc.is invvariably contamminated due to discharging the human,rrigation and industrial sewage in it.The effec of pollution of such sewages is reduced with respect o organic matters due to Self -purification of streams by dilution;sedimentation,aeration.evaporation.... etc,however the problem of treatment of the runing surface raw water arises when it is required to be used as potable water due to its contamination with the undesirable suspended and dissolved impurtties.
The dissolved impurities are found in water mainly in forms of salts such as biccabonates ,carbonates ,sulphatesand chlorides of Ca,Na,Mg,Mn which effect its PH value ,hardness and tast.However in most cases the meassuring of dissolved impurites for the running raw water from the river and its branches are found lying withen the limits stated by the i nternatinal standred for drinking water (The W.H.O expert committee-Genvea 1968)
Accordingly the unit compact is designed for treatment of running surface raw water with respect to the suspended impurities which mainly are:
a) SAND and SILT
b) ALGAE and PROTOZOA
c)BACTERIA
The treatment of raw water is required for several reasons of which the removal of germs of deseases is the most important. The surface raw water running in rivers ,canals,streams...etc.is invvariably contamminated due to discharging the human,rrigation and industrial sewage in it.The effec of pollution of such sewages is reduced with respect o organic matters due to Self -purification of streams by dilution;sedimentation,aeration.evaporation.... etc,however the problem of treatment of the runing surface raw water arises when it is required to be used as potable water due to its contamination with the undesirable suspended and dissolved impurtties.
The dissolved impurities are found in water mainly in forms of salts such as biccabonates ,carbonates ,sulphatesand chlorides of Ca,Na,Mg,Mn which effect its PH value ,hardness and tast.However in most cases the meassuring of dissolved impurites for the running raw water from the river and its branches are found lying withen the limits stated by the i nternatinal standred for drinking water (The W.H.O expert committee-Genvea 1968)
Accordingly the unit compact is designed for treatment of running surface raw water with respect to the suspended impurities which mainly are:
a) SAND and SILT
b) ALGAE and PROTOZOA
c)BACTERIA
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