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Nasser, A.M., Division of Environmental Sciences, Graduate School of Applied Sciences and Technology, Hebrew University of Jerusalem, Jerusalem 91904, Israel
Zev, L., Division of Environmental Sciences, Graduate School of Applied Sciences and Technology, Hebrew University of Jerusalem, Jerusalem 91904, Israel
Fattal, B., Division of Environmental Sciences, Graduate School of Applied Sciences and Technology, Hebrew University of Jerusalem, Jerusalem 91904, Israel
A study was performed to evaluate the removal efficiency of bacterial indicators, F+ bacteriophages and enteroviruses, in a single-cell stabilization pond with a design hydraulic detention time of six to ten days. The performance of the stabilization pond was also evacuated by measuring the pH, conductivity and the level of dissolved oxygen in the influent and effluent. A dye tracer study indicated that 5% of the pond influent reached the pond's outlet within 16 h, indicating severe short-circuiting in the pond. The removal of the indicator microorganisms ranged between 90.7 to 96.6% in the stabilization pond. Average concentration of F. coliform, enterococci and F+bacteriophage in the pond's effluent was 2.1 X 10 4, 1.2 X 10 2 and 1.6 X 10 2 cfu or pfu/ml -1, respectively. The microbial quality of the effluents obtained does not meet the WHO recommended guidelines for effluents reuse for unrestricted crop irrigation. Uncontrolled discharge of these low quality effluents may result in the contamination of natural water resources. 0960–3123. © 1994, Taylor & Francis Group, LLC. All rights reserved.
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Removal of indicator microorganisms and enteroviruses from wastewater in a single cell stabilization pond
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Nasser, A.M., Division of Environmental Sciences, Graduate School of Applied Sciences and Technology, Hebrew University of Jerusalem, Jerusalem 91904, Israel
Zev, L., Division of Environmental Sciences, Graduate School of Applied Sciences and Technology, Hebrew University of Jerusalem, Jerusalem 91904, Israel
Fattal, B., Division of Environmental Sciences, Graduate School of Applied Sciences and Technology, Hebrew University of Jerusalem, Jerusalem 91904, Israel
Removal of indicator microorganisms and enteroviruses from wastewater in a single cell stabilization pond
A study was performed to evaluate the removal efficiency of bacterial indicators, F+ bacteriophages and enteroviruses, in a single-cell stabilization pond with a design hydraulic detention time of six to ten days. The performance of the stabilization pond was also evacuated by measuring the pH, conductivity and the level of dissolved oxygen in the influent and effluent. A dye tracer study indicated that 5% of the pond influent reached the pond's outlet within 16 h, indicating severe short-circuiting in the pond. The removal of the indicator microorganisms ranged between 90.7 to 96.6% in the stabilization pond. Average concentration of F. coliform, enterococci and F+bacteriophage in the pond's effluent was 2.1 X 10 4, 1.2 X 10 2 and 1.6 X 10 2 cfu or pfu/ml -1, respectively. The microbial quality of the effluents obtained does not meet the WHO recommended guidelines for effluents reuse for unrestricted crop irrigation. Uncontrolled discharge of these low quality effluents may result in the contamination of natural water resources. 0960–3123. © 1994, Taylor & Francis Group, LLC. All rights reserved.
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