Volume 15, Issue 2 (Scientific Journal of Hamadan University of Medical Sciences-Summer 2008)                   Avicenna J Clin Med 2008, 15(2): 60-65 | Back to browse issues page

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Rahmani A, Samarghandi M. Investigation of Coliform Removal from Drinking Water by Electrolysis. Avicenna J Clin Med. 2008; 15 (2) :60-65
URL: http://sjh.umsha.ac.ir/article-1-373-en.html
1- , rahmani@umsha.ac.ir
Abstract:   (2899 Views)

Introduction & Objective: The practice of eliminating pathogenic microorganisms in water dates back to ancient times. The most common methods for water disinfection are using chemicals, Ozonation, Ultra Violet ray, Membrane Processes and etc. There has been considerable interest in disinfection of water by using electrochemical methods in recent years. The main purpose of this study is to conduct experimental investigation of water disinfection by using the electrolysis method. Inactivation and killing Coliform in polluted waters was investigated by different voltage, electrodes (Al, St and Cu) and distance between electrodes.

Materials & Methods: The polluted water was prepared by adding a colony of coliform growth on EMB in raw water. Experiments were done similarly via the same electrolyzes time, electrodes distance and voltage intensity for all types of combinations of electrodes respectively. Results: The experimental results show that the removal efficiency depends on the voltage and electrodes material. From the experiments carried out at 10 V. and at current intensity of 135 mA, it was found that five-minute period was sufficient for disinfecting water using Stainless Steel electrodes.

Conclusion: Due to the results, the electrochemical methods can be proposed as a promising cleaning and purifying method for water disinfection.

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Type of Study: Original | Subject: Other Clinical Specialties

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