Moreover, in high turbid solution (500 NTU) theremoval efficiency of turbidity was the highest ascompared to low (100NTU) and moderate (200 NTU)turbid solutions. The present results showed thatmallow, Arabic gum and okra have higher efficiency inremoving high turbidity in comparison with lowturbidity. Also it should be noted that the coagulant aiddosage in comparison to alum dosage is very low. Thisfinding is in agreement with results obtained by Patale,
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