:: Volume 11, Issue 2 (summer 2011) ::
J Ardabil Univ Med Sci 2011, 11(2): 158-165 Back to browse issues page
Investigation of Efficiency Ultra Violet Radiation in Disinfection of Escherichia coli in Aquatic Environments: Kinetic Study
Mohammad Yousef Alikhani, Masoud Khorasani, Hadi Piri Dogahe, Mahdi Shirzad Siboni *
Abstract:   (5946 Views)

  Background & Objectives: E. coli is an opportunistic and pathogenic bacterium in human. It is a fecal contamination indicator of the water. The aim of this study is to investigate the efficiency of ultra violet radiation in disinfection of E. coli in aquatic environments in a batch system.

  Methods: At first, reactor was designed and made. The effects of pH, exposure time and initial inoculum were studied. Kinetic parameters were obtained by application of zero, first and second - order equations .

  Results: The result showed that removal efficiency decreased with increase of initial inoculumand the kinetics of disinfection was described by first-order model. The result also showed that removal efficiency augmented with increasing exposure time and pH .

  Conclusion: The results of this study shows that ultra violet radiation can be used as an effective disinfection method for E. coli in aquatic environments.

Keywords: Escherichia coli; Ultra Violet; Disinfection; Aquatic Solutions
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Type of Study: article | Subject: Special
Received: 2011/03/1 | Accepted: 2011/06/4 | Published: 2011/06/22

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Volume 11, Issue 2 (summer 2011) Back to browse issues page