UPFLOW SLUDGE BLANKET FILTRATION (USBF): AN INNOVATIVE TECHNOLOGY IN ACTIVATED SLUDGE PROCESS

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MESDAGHINIA A.R.; MAHVI A.H.; SAEDI R.; PISHRAFTI H.

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Journal: Iranian Journal of Public Health Year:2010 | Volume:39 | Issue:2 Page(s): 7-12

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Title

UPFLOW SLUDGE BLANKET FILTRATION (USBF): AN INNOVATIVE TECHNOLOGY IN ACTIVATED SLUDGE PROCESS

Author(s)

MESDAGHINIA A.R. | MAHVI A.H. | SAEDI R. | PISHRAFTI H. | Issue Writer Certificate

Keywords

DOMESTIC WASTEWATER

TREATMENT

USBF PROCESS

BOD5

COD

Abstract

Background: A new biological DOMESTIC WASTEWATER TREATMENT process, which has been presented these days in activated sludge modification, is Upflow Sludge Blanket Filtration (USBF). This process is aerobic and acts by using a sludge blanket in the separator of sedimentation tank. All biological flocks and suspended solids, which are presented in the aeration basin, pas through this blanket. The performance of a single stage USBF PROCESS for TREATMENT of DOMESTIC WASTEWATER was studied in laboratory scale.Methods: The pilot of USBF has been made from fiberglass and the main electromechanical equipments consisted of an air compressor, a mixing device and two pumps for sludge return and wastewater injection. The wastewater samples used for the experiments were prepared synthetically to have qualitative characteristics similar to a typical DOMESTIC WASTEWATER (COD= 277 mg/l, BOD5= 250 mg/l and TSS= 1 mg/l).Results: On the average, the TREATMENT system was capable to remove 82.2% of the BOD5 and 85.7% of COD n 6 h hydraulic retention time (HRT). At 2 h HRT BOD and COD removal efficiencies dramatically reduced to 50% and 46.5%, respectively.Conclusion: Even by increasing the concentrations of pollutants to as high as 50%, the removal rates of all pollutants were remained similar to the HRT of 6 h.

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APA: Copy

MESDAGHINIA, A.R., MAHVI, A.H., SAEDI, R., & PISHRAFTI, H.. (2010). UPFLOW SLUDGE BLANKET FILTRATION (USBF): AN INNOVATIVE TECHNOLOGY IN ACTIVATED SLUDGE PROCESS. IRANIAN JOURNAL OF PUBLIC HEALTH, 39(2), 7-12. SID. https://sid.ir/paper/272723/en

Vancouver: Copy

MESDAGHINIA A.R., MAHVI A.H., SAEDI R., PISHRAFTI H.. UPFLOW SLUDGE BLANKET FILTRATION (USBF): AN INNOVATIVE TECHNOLOGY IN ACTIVATED SLUDGE PROCESS. IRANIAN JOURNAL OF PUBLIC HEALTH[Internet]. 2010;39(2):7-12. Available from: https://sid.ir/paper/272723/en

IEEE: Copy

A.R. MESDAGHINIA, A.H. MAHVI, R. SAEDI, and H. PISHRAFTI, “UPFLOW SLUDGE BLANKET FILTRATION (USBF): AN INNOVATIVE TECHNOLOGY IN ACTIVATED SLUDGE PROCESS,” IRANIAN JOURNAL OF PUBLIC HEALTH, vol. 39, no. 2, pp. 7–12, 2010, [Online]. Available: https://sid.ir/paper/272723/en

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