Effect of Operational Conditions on Performance of Deep Sand Filter in Turbidity Removal - Juniper publishers
   Journal of Trends in Technical and Scientific Research      Abstract     In this study, laboratory pilot plant was constructed  to study the performance of deep sand filter in water treatment. Sand  was used as a filtration media under different filtration rates ranged  from 4 m/hr to 8 m/hr. Down flow was applied to the filter through sand  media with size of 0.7-1.0 mm, while sand depth was changed from 80 cm  to 140 cm. The used synthetic turbid water was prepared in different  turbidity levels varying from 10 to 30 NTU. Aluminum sulfate (alum) was  used as coagulant in different doses varied from 20 to 40 mg/l.  Turbidity removal and head loss were investigated as functions of sand  depth, filtration rate, alum dose and influent turbidity. From analysis  of the experimental results, it was found that the changing of  operational conditions (changing media depth, filtration rate, alum dose  and influent turbidity) have significant impact on the turbidity  removal efficiency, head...
 
 
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