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Title of Journal: Korean J Chem Eng

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Abbravation: Korean Journal of Chemical Engineering

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Springer US

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DOI

10.1016/j.ando.2007.02.003

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ISSN

1975-7220

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Purification and removal of Emphasis Type="Italic

Authors: Jafar Nouri Amir Hossein Mahvi Reza Saeedi Kavoos Dindarloo Mohammad Rafiee Sina Dobaradaran
Publish Date: 2008/07/02
Volume: 25, Issue: 3, Pages: 501-504
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Abstract

The performance of a horizontal roughing filter HRF and a downflow roughing filter DRF in the removal of Ascaris and Fasciola hepatica eggs was investigated The experiments were performed at three filtration rates of 05 10 and 15 m/h and different influent concentrations of Ascaris and Fasciola hepatica eggs Alteration of the filtration rate in the range of 05–15 m/h did not have significant influence on the effectiveness of the roughing filters The HRF had higher efficiency in the removal of both Fasciola hepatica and Ascaris eggs in comparison with the DRF so that the average efficiencies of the HRF for the removal of Fasciola hepatica and Ascaris eggs at filtration rate of 10 m/h were determined to be 890 and 573 respectively whereas the same values of the DRF were 772 and 525 respectively The straining was confirmed to be the main mechanism of helminth eggs removal by the roughing filters because Fasciola hepatica eggs with larger size were removed more effectively than Ascaris eggs The results of this study indicate that the roughing filters especially the HRF had promising performance in the removal of helminth eggs and could be used for water and secondary effluent treatment

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