الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
With the population growth, the increase in their activities and
civilization raised their water need. With the shortage in new water
resources for reuse and high cost for the desalination methods for sea
water leads to the depend on the wastewaters with all its types. The huge
costs for treating both municipal and industrial wastewaters to be reusable
for human needs open the door for treating the agriculture drains water
which is bigger in amount and lower in pollution to introduce a huge
source for water. Several procedures had been applied to encourage its
own self purification system to overcome the pollutants faster and left the
stream clean for human purposes as much as possible.
This study used four different methods to enhance the stream
water body quality and improve it for reuse purposes. These methods are
an Agricultural waste (Rice Husk), Plastic media, Rotating paddles and
stepped weir.
Generally, the study shows that the temperature of air and water
had no effect on the treatment or by it. Also, the pH value did not affect
by the applied treatment or on it. While the TDS were affected slightly by
the treatment with very low margin between 1- 4 %. It was found that
using rotating paddles is the best treatment method. This system
succeeded to improve DO by 82%. Decrease the BOD, COD & TSS by
85% with the four serial paddles and 68% of the heavy metals from drain
water that achieved very high treatment and increase the possibility of
drain water reuse.