Electrochemical disinfection of coliform and Escherichia coli for drinking water treatment by electrolysis method using carbon as an electrode

12th Joint Conference on Chemistry

Riyanto^1 ; Agustiningsih, W.A.^1

Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Islam Indonesia, Jl. Kaliurang KM 14, 5, Sleman Yogyakarta, Indonesia^1

关键词: Carbon electrode;    Coliforms;    E. coli;    Effect of hydrogen;    Electrochemical disinfection;    Electrolysis voltages;    SEM-EDS;    UV-Vis spectrophotometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/349/1/012053/pdf
DOI  :  10.1088/1757-899X/349/1/012053

来源: IOP

【 摘 要 】

Disinfection of coliform and E. Coli in water has been performed by electrolysis using carbon electrodes. Carbon electrodes were used as an anode and cathode with a purity of 98.31% based on SEM-EDS analysis. This study was conducted using electrolysis powered by electric field using carbon electrode as the anode and cathode. Electrolysis method was carried out using variations of time (30, 60, 90, 120 minutes at a voltage of 5 V) and voltage (5, 10, 15, 20 V for 30 minutes) to determine the effect of the disinfection of the bacteria. The results showed the number of coliform and E. coli in water before and after electrolysis was 190 and 22 MPN/100 mL, respectively. The standards quality of drinking water No. 492/Menkes/Per/IV/2010 requires the zero content of coliform and E. Coli. Electrolysis with the variation of time and potential can reduce the number of coliforms and E. Coli but was not in accordance with the standards. The effect of hydrogen peroxide (H2O2) to the electrochemical disinfection was determined using UV-Vis spectrophotometer. The levels of H2O2formed increased as soon after the duration of electrolysis voltage but was not a significant influence to the mortality of coliform and E.coli.