الفهرس 
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Abstract
Increased demand for drinking water has led to increased groundwateruse, which has become the key source of supply for many regions of the
world, Groundwater resources are one of the non-conventional water
resources, which are characterized by their geographical spread in the
Arab Republic of Egypt.
This research presented a solution for treatment groundwater by using
Electro-coagulation (EC) technique to remove the different element such
as heavy metals (iron, manganese), and reduce the different parameters
such as Turbidity, Total Alkalinity, Conductivity, pH, TDS, Fluorides,
Magnesium, Sulfate )SO4(, Magnesium carbonate (MgCo3). The
influence of various operating parameters of EC, such as retention time,
current intensity, and distance between electrodes were explored for
effective treatment of ground water, where Aluminum sheet was used as
the electrode material, distance between electrodes was varied from
0.005 m to 0.02 m and the current intensity was varied from 1.5 to 4.5
ampere with retention time from 20 to 60 min.
When the current intensity was (4.5 ampere) with retention time
(30 min) and the distance between the electrodes was (0.5 cm) the
best result of removing iron, Turbidity and Fluorides is obtained,
and the percentage of reduce was 89.9 %, 92.06 % and 90%
respectively.
When the current intensity was (3.5 ampere) with retention time
(45 min) and the distance between the electrodes was (1 cm) the
best result of removing mmanganese is obtained, and the percentage
of reduce was 75.42 %. When the current intensity was (3 ampere) with retention time (60
min) and the distance between the electrodes was (0.5 cm) the best
result of removing total alkalinity, conductivity, TDS, Fluorides,
magnesium, sulfate and MgCo3 is obtained, and the percentage of
reduce was 49.85 %, 23.09 %, 23.09 %, 90 %, 43.39 %, 26.6 % and
43.71 % respectively.