Two-stage sand filtration of secondary effluent for agricultural reuse. | [International Journal of Agriculture and Biology • 2007]

Author(s):

1. Zahra Tabatabaei: Department of Environmental Health, School of Public Health, Zahedan University of Medical Sciences, Iran

2. Ataolah Rakhsh Khorshidi: Department of Environmental Health, School of Public Health, Zahedan University of Medical Sciences, Iran

3. Ali Sohrabi: Department of Environmental Health, School of Public Health, Zahedan University of Medical Sciences, Iran

4. Amir Hossein Mahvi: Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

5. Saeed Reza: Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Abstract:

The performance of a two-stage sand filtration process in the treatment of the secondary effluent was studied in a pilot plant at filtration rate of 150 m3 m-2 d. The two-stage sand filtration process exhibited the removal efficiencies of 89%, 78% and 84% for TSS, BOD5 and COD, respectively. Also the average efficiencies of the filtration process in the removal of NO2 -, NO3 -, TDS and TP were determined to be 34%, 21%, 11% and 28%, respectively. Data indicated that the two-stage sand filtration process play an essential role in the improvement of effluent quality. A simple and readily available technology satisfied effluent quality requirements for agricultural reuse especially from viewpoint of suspended solids and organic matter.

Page(s): 889-892

DOI: DOI not available

Published: Journal: International Journal of Agriculture and Biology, Volume: 9, Issue: 6, Year: 2007

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