Escherichia Coli Removal from Water Using Electrophotocatalytic Method

Journal of Applied Sciences and Environmental Management

Kashi Jonidi-Jafari, A.¹  Niliahmadabadi, A.¹  Khataee, A.R.¹  Rezaee, A.¹ 

关键词: Escherichia Coli;    Water disinfection;    Electrophotocatalytic;    UV- A.;   

DOI  :  

学科分类：环境科学（综合）

来源: University of Port Harcourt * Department of Pure and Industrial Chemistry

【 摘 要 】

Electrochemical has the suitable method of drinking water disinfection. This method leads toproduction of hydroxyl radicals which are known powerfull oxidant agent. In recent years, water disinfectionusing electrophotocatalytic method is spreading. The aim of this experimental applied study is to evaluate theremoval of Escherichia Coli , as the microbial contamination indicator of water, from drinking water usingelectrophotocatalytic method. The contaminated water in an electrophotocatalytic reactor were prepared byadding 102-103 cell of E. coli bacteria to drinking water. The studied variables were pH (6-8), the number ofbacterial suspensions (102-103 cells / ml), the UV-A lamps (2-4 W), times (5-40 min), the distances betweenelectrodes (2-3.5 cm), layering of zinc oxide nanoparticles (1-3), and voltages (10-40). The findings showed thecorrelation between removal of cells and UV-A lamps, voltage, and time of electrolysis. Optimal removal(MPN: 0) was obtained at pH 8, time of electrolysis: 5 minutes, 2 layer of nano ZnO, and voltage of 10 V. Thisresult offers that this method is an efficient method for water disinfection.

【 授权许可】

Unknown