الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The Egyptian government has paid a lot of attention to mitigate
the effect of sedimentation at drinking water intakes on River Nile. One
of the main problems of the drinking water stations is blockage of intakes,
which need to make either hydraulic or mechanical dredging in the
entrance area around the drag pipe with high cost; where the
sedimentation problems are relatively common in Egypt, especially in the
case of drinking water station intakes on River Nile. Excessive
sedimentation at water intakes on rivers causes interruption in water
supply and serious abrasion of pumps with consequent high operating
costs. Sedimentation in the catchment area around the intake mouth
causes a lot of problems such as reducing the amount of drawing water
and decreasing the station efficiency. There is a need for the removal of
sediment from the intakes to ensure water supply and to protect the
pumps against damage and sediment clogging, respectively. the objective
of this research is to develop a reliable and simple device; that has the
capabilities of removing the accumulated sediment at front of water
intakes early without causing blockage and to ensure supplying water
continuously it can be fabricated from local materials and components
with low cost.
Finally, the new device is the best solution to remove sediment
and applied at the drinking water station intakes which suffer from the
sedimentation at the intakes and can utilize the removed sediment in
many useful fields. It can be concluded that the use of this technique is
recommended because it is the cleanest and cheapest source of energy in
removing sediment from front of drinking water station intakes.