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Journal of Applied Sciences

Year: 2006 | Volume: 6 | Issue: 4 | Page No.: 731-734
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Authors

H. Kamani

F. Vaezi

R. Nabizadeh

A.R. Mesdaghinia

M. Alimohammadi

Keywords

Research Article

Application of Medium Pressure UV Lamp for Wastewater Disinfection of Milk Production Industry

H. Kamani, F. Vaezi, R. Nabizadeh, A.R. Mesdaghinia and M. Alimohammadi
UV disinfect ion has gained widespread use for municipal wastewater and more recently, interest in using UV for water reuse applications has increased too. Medium pressure lamp has emerged as a viable alternative and is beginning to gain more popularity than the conventional low-pressure lamps. This study has been performed with the objective of utilizing MP lamp for the disinfection stage of wastewater from a milk industry. The lab-scale UV submerged system used in the experiments was a single-lamp reactor with 3 L volume, which was operated at two contact times. Two MP lamps of 300 and 400 W had been used separately. Results indicated that for disinfection of all the samples with different %T, meeting the goal of 1000 MPN /100 mL or less was always possible. Besides, for 95% of these samples, the MPN of irradiated effluents had reached to less than 240/100 mL. Another conclusion is that by use of 400 W lamp, all the samples are well disinfected to 100 total coli forms or less per 100 mL and so are become ready for most applications of water reuse programs.
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