الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
This study was done in an attempt to reduce the percentage of losses in water
treatment plants and networks where losses is the difference between delivered water
and water sold from distribution system or the difference between supplied water
from distribution system and leaves water from system to use. There are many causes
for losses in water treatment plants and networks like water lost in water treatment
plants due to washing filters and reservoirs, and water lost in networks due to the
lack of maintenance or failure to renew ageing systems, illegal connection, metering
error, or an accounting error. Data collected for this study for two governorates
which namely are Damietta, Minya the data collected include types of water
treatment plants, capacity, water sold, losses for each water treatment plants and for
networks losses, types and diameters of pipes. The interrelationships between types
of water treatment plants, capacity, water sold, losses, types and diameters of pipes
were studied, graphically represented, analyzed, and discussed in order to determine
the actual reasons for reducing the losses. The study concluded that;-
The developed water treatment plants is more preferred than surface water treatment
plants as it reduced the percentage of losses to31.33%, which is 2.5% less than that
of surface water treatment plants in Damietta governorate.
The artesian well water treatment plants is more preferred than Non-artesian Well
water treatment plants as it reduced the percentage of losses to11.27%, where the
percentage of losses are reduced in the rate of10.17% in Minya governorate.
IXThis study was done in an attempt to reduce the percentage of losses in water
treatment plants and networks where losses is the difference between delivered water
and water sold from distribution system or the difference between supplied water
from distribution system and leaves water from system to use. There are many causes
for losses in water treatment plants and networks like water lost in water treatment
plants due to washing filters and reservoirs, and water lost in networks due to the
lack of maintenance or failure to renew ageing systems, illegal connection, metering
error, or an accounting error. Data collected for this study for two governorates
which namely are Damietta, Minya the data collected include types of water
treatment plants, capacity, water sold, losses for each water treatment plants and for
networks losses, types and diameters of pipes. The interrelationships between types
of water treatment plants, capacity, water sold, losses, types and diameters of pipes
were studied, graphically represented, analyzed, and discussed in order to determine
the actual reasons for reducing the losses. The study concluded that;-
The developed water treatment plants is more preferred than surface water treatment
plants as it reduced the percentage of losses to31.33%, which is 2.5% less than that
of surface water treatment plants in Damietta governorate.
The artesian well water treatment plants is more preferred than Non-artesian Well
water treatment plants as it reduced the percentage of losses to11.27%, where the
percentage of losses are reduced in the rate of10.17% in Minya governorate.
IXThis study was done in an attempt to reduce the percentage of losses in water
treatment plants and networks where losses is the difference between delivered water
and water sold from distribution system or the difference between supplied water
from distribution system and leaves water from system to use. There are many causes
for losses in water treatment plants and networks like water lost in water treatment
plants due to washing filters and reservoirs, and water lost in networks due to the
lack of maintenance or failure to renew ageing systems, illegal connection, metering
error, or an accounting error. Data collected for this study for two governorates
which namely are Damietta, Minya the data collected include types of water
treatment plants, capacity, water sold, losses for each water treatment plants and for
networks losses, types and diameters of pipes. The interrelationships between types
of water treatment plants, capacity, water sold, losses, types and diameters of pipes
were studied, graphically represented, analyzed, and discussed in order to determine
the actual reasons for reducing the losses. The study concluded that;-
The developed water treatment plants is more preferred than surface water treatment
plants as it reduced the percentage of losses to31.33%, which is 2.5% less than that
of surface water treatment plants in Damietta governorate.
The artesian well water treatment plants is more preferred than Non-artesian Well
water treatment plants as it reduced the percentage of losses to11.27%, where the
percentage of losses are reduced in the rate of10.17% in Minya governorate.
IXThis study was done in an attempt to reduce the percentage of losses in water
treatment plants and networks where losses is the difference between delivered water
and water sold from distribution system or the difference between supplied water
from distribution system and leaves water from system to use. There are many causes
for losses in water treatment plants and networks like water lost in water treatment
plants due to washing filters and reservoirs, and water lost in networks due to the
lack of maintenance or failure to renew ageing systems, illegal connection, metering
error, or an accounting error. Data collected for this study for two governorates
which namely are Damietta, Minya the data collected include types of water
treatment plants, capacity, water sold, losses for each water treatment plants and for
networks losses, types and diameters of pipes. The interrelationships between types
of water treatment plants, capacity, water sold, losses, types and diameters of pipes
were studied, graphically represented, analyzed, and discussed in order to determine
the actual reasons for reducing the losses. The study concluded that;-
The developed water treatment plants is more preferred than surface water treatment
plants as it reduced the percentage of losses to31.33%, which is 2.5% less than that
of surface water treatment plants in Damietta governorate.
The artesian well water treatment plants is more preferred than Non-artesian Well
water treatment plants as it reduced the percentage of losses to11.27%, where the
percentage of losses are reduced in the rate of10.17% in Minya governorate.
IX
The percentage of losses decrease with increasing the percentage of PVC, Cast-iron
and GRP pipe lengths to the total lengths of all pipes.
The percentage of losses increase with increasing the percentage of asbestos and
steel pipe lengths to the total.