DISINFECTION OF WATER AND WASTEWATER USING GAMMA IRRADIATION IN ISFAHAN WATER AND WASTEWATER TREATMENT PLANTS

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HASHEMI HASAN; AMIN MOHAMMAD MAHDI; BINA B.; ABD ELAHI MOHAMMAD; HATAMZADEH M.

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Journal: WATER AND WASTEWATER Year:2011 | Volume:21 | Issue:4 (76) Page(s): 28-32

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Title

DISINFECTION OF WATER AND WASTEWATER USING GAMMA IRRADIATION IN ISFAHAN WATER AND WASTEWATER TREATMENT PLANTS

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Keywords

DISINFECTIONQ3

WATERQ2

TREATED WASTEWATERQ3

GAMMA IRRADIATIONQ3

Abstract

To investigate the effect of GAMMA IRRADIATION on the DISINFECTION of WATER and wastewater, WATER samples were collected from raw and filtered WATER and wastewater samples were taken from the effluent of the secondary sedimentation, polished effluent (1-day retention time), and also from filtered (rapid sand filter) effluent. The samples were irradiated with gamma collimated beam in a batch system using a Co-60 therapeutic gamma radiation machine with a radioactive source emission rate of 405.38CGy/min at different doses of 20-160 Gy and 80-240 Gy, respectively. The samples were analyzed before and after irradiation for total and fecal coliforms. It was observed that nearly 100% reduction was achieved in total and fecal coliforms in WATER samples treated with a dose of 160 Gy. Depending on effluent quality, DISINFECTION efficiencies achieved using 240 Gy GAMMA IRRADIATION for inactivation of total coliforms in wastewater samples were 83, 64, and 56 percent for filtered, clarified, and secondary effluents, respectively. The same values were nearly 81, 58, and 46 percent, respectively, for inactivation of fecal coliforms. At lower doses of 120-240Gy, the coliform bacteria were successfully inactivated. It was concluded that a linear correlation holds between the dose delivered and the inactivation of microorganisms, so that inactivation increases with increasing irradiation time.

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APA: Copy

HASHEMI, HASAN, AMIN, MOHAMMAD MAHDI, BINA, B., ABD ELAHI, MOHAMMAD, & HATAMZADEH, M.. (2011). DISINFECTION OF WATER AND WASTEWATER USING GAMMA IRRADIATION IN ISFAHAN WATER AND WASTEWATER TREATMENT PLANTS. WATER AND WASTEWATER, 21(4 (76)), 28-32. SID. https://sid.ir/paper/104063/en

Vancouver: Copy

HASHEMI HASAN, AMIN MOHAMMAD MAHDI, BINA B., ABD ELAHI MOHAMMAD, HATAMZADEH M.. DISINFECTION OF WATER AND WASTEWATER USING GAMMA IRRADIATION IN ISFAHAN WATER AND WASTEWATER TREATMENT PLANTS. WATER AND WASTEWATER[Internet]. 2011;21(4 (76)):28-32. Available from: https://sid.ir/paper/104063/en

IEEE: Copy

HASAN HASHEMI, MOHAMMAD MAHDI AMIN, B. BINA, MOHAMMAD ABD ELAHI, and M. HATAMZADEH, “DISINFECTION OF WATER AND WASTEWATER USING GAMMA IRRADIATION IN ISFAHAN WATER AND WASTEWATER TREATMENT PLANTS,” WATER AND WASTEWATER, vol. 21, no. 4 (76), pp. 28–32, 2011, [Online]. Available: https://sid.ir/paper/104063/en

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