The determination of sludge characteristics of wastewater treatment process has the
primary role in the treatment and disposal. This research aims to determine the sludge
characteristics by studying specific resistance factor of the sludge on the f
iltration at Merge
Maarban station, so we took samples of sludge from the station and made several
laboratory experiments and we got the time of intensify sludge, moisture and The
concentration of the solid substances. we calculated specific resistance factor values of the
sludge when the moisture values are ( 97.5 , 95.5 , 94 , 92 , 91 , 88 ) %. The research
results showed a decrease in resistivity factor value of sludge on the filtration as its
moisture become less and the sludge drying time takes tow weeks.
This research discusses the way of defining hydogeological parameters by using
monitored data of the ground water system, for defining the values of these coefficients on
large areas, which has a practical significance especially in modeling the hy
drogeological
problems which allows explaining and checking the hydrodynamic and the
hydrogeological structures of the area and the reasons of changing the filteration properties
of the aquifer.
It appears that transmissivity varied from 36 to 570 m2/day, the permeability
from 1 to 53 m/day, and the water yield from low to medium between 0.00004 and 0.2
because of the rising of the coefficient of diffusion.
The filtration recharge approximately from 1 - 40% from the rain falls.
The obtained results are in good conformity with the geological characteristics -
structural and litologic - facies characteristics for the study area.
Resulting backwash water from existing filters, in the water purification plants, is actually thrown in most
cases in water bodies, valleys or discharged into other system without making any benefit from it.
The amount of backwash water is well est
imated to be in average (3-4%) of purified water amount. Even
if this amount is generally not relevant, it can however be considered to be useful in some circumstances,
where the source water is rare or there is no water resource in the region at all.
Treatment of backwash water depends on the reuse need of it, either for drinking or irrigation purposes,
so that the treated water must be in accordance with the water quality standard stated in related
specifications.
In this research, the resulting backwash water purification plant at Roum Dam near Swaida town has
been scientifically analyzed and treated in a plant designed and built for this purpose.
In this paper, the results of experiments are discussed; important facts have been concluded and
economic feasibility for water reuse was determined.
