EFFECT OF UV RADIATION INTENSITY ON PHOTOCATALYTIC REMOVAL OF E. COLI USING IMMOBILIZED ZNO NANOPARTICLES

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REZAEI ABAS; MASOUM BEYGI H.; KHATAEI A.R.; HASHEMIAN S.J.A.D.

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Journal: KOWSAR MEDICAL JOURNAL Year:2009 | Volume:14 | Issue:3 Page(s): 149-156

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Title

EFFECT OF UV RADIATION INTENSITY ON PHOTOCATALYTIC REMOVAL OF E. COLI USING IMMOBILIZED ZNO NANOPARTICLES

Author(s)

REZAEI ABAS | MASOUM BEYGI H. | KHATAEI A.R. | HASHEMIAN S.J.A.D. | Issue Writer Certificate

Keywords

ZNO NANOPARTICLEQ3

UV RADIATIONQ3

WATER TREATMENTQ3

E. COLIQ2

RADIATION INTENSITYQ3

PHOTOCATALYTIC PROCESSQ3

Abstract

Aims: The advanced oxidation process is one of the conventional methods for wastewater treatment that can degrade a wide range of organic pollutants and microbial agents with high efficiency. The aim of this research was to study the effect of UV light RADIATION INTENSITY on E. COLI photocatalytic removal using ZNO NANOPARTICLEs immobilized on the glass plates.Materials & Methods: Characterizations of ZNO NANOPARTICLEs were determined using scanning electron microscope equipped with EDX system and XRD method. The powders of ZNO NANOPARTICLEs less than 50nm were immobilized on glass plate with thermal method. Water samples including different amounts of E. COLI were irradiated in a plug flow reactor with UVA and UVC lamps of 4 and 8 watts and the effect of operational variables such as UV irradiation intensity, UV irradiation time, initial concentration of the bacterium and reactor flow on the photocatalytic removal of E. COLI were examined.Results: The efficiency of PHOTOCATALYTIC PROCESS increased with increasing of irradiation intensity; But in the high dose of irradiation, no increasing of efficiency was observed. Increasing of lamps distance from water surface decreased RADIATION INTENSITY and reactor efficiency. Numbers of immobilized ZNO NANOPARTICLE layers had no effect on the PHOTOCATALYTIC PROCESS efficiency.Conclusion: PHOTOCATALYTIC PROCESS using immobilized ZNO NANOPARTICLEs can remove E. COLI from water with UVA RADIATION INTENSITY of 240 W/cm2 by two 8 watts lamps during 30 minute.

Cites

PHOTOCATALYTIC REMOVAL OF NATURAL ORGANIC MATTER FROM AQUEOUS SOLUTIONS USING ZINC OXIDE NANOPARTICLES IMMOBILIZED ON GLASS

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APA: Copy

REZAEI, ABAS, MASOUM BEYGI, H., KHATAEI, A.R., & HASHEMIAN, S.J.A.D.. (2009). EFFECT OF UV RADIATION INTENSITY ON PHOTOCATALYTIC REMOVAL OF E. COLI USING IMMOBILIZED ZNO NANOPARTICLES. KOWSAR MEDICAL JOURNAL, 14(3), 149-156. SID. https://sid.ir/paper/32755/en

Vancouver: Copy

REZAEI ABAS, MASOUM BEYGI H., KHATAEI A.R., HASHEMIAN S.J.A.D.. EFFECT OF UV RADIATION INTENSITY ON PHOTOCATALYTIC REMOVAL OF E. COLI USING IMMOBILIZED ZNO NANOPARTICLES. KOWSAR MEDICAL JOURNAL[Internet]. 2009;14(3):149-156. Available from: https://sid.ir/paper/32755/en

IEEE: Copy

ABAS REZAEI, H. MASOUM BEYGI, A.R. KHATAEI, and S.J.A.D. HASHEMIAN, “EFFECT OF UV RADIATION INTENSITY ON PHOTOCATALYTIC REMOVAL OF E. COLI USING IMMOBILIZED ZNO NANOPARTICLES,” KOWSAR MEDICAL JOURNAL, vol. 14, no. 3, pp. 149–156, 2009, [Online]. Available: https://sid.ir/paper/32755/en

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