کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1431107 | 1509189 | 2008 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Inactivation of E. coli and Pseudomonas aeruginosa by electrochloration under bipolar pulsed polarization Inactivation of E. coli and Pseudomonas aeruginosa by electrochloration under bipolar pulsed polarization](/preview/png/1431107.png)
This work is devoted to the biocides effects by electrochlorination under a pulsated bipolar polarization (PBP) of low potentials (− 1 V/cm to + 1.6 V/cm). Two working electrodes were used, one in platinum and the other in AISI 430 stainless steel, in two different electrolytes: sterilized distilled water and 0,9N sterilized NaCl solution, contaminated by E. Coli or by Pseudomonas Aeruginosa. The inactivation of these bacteria was established under the action of three biocide treatments: E.F (Electric Field); the combination of E.F and Active Chlorine (A.C) and the combination of E.F, A.C and Ions in Solutions (I.S). The synergistic effect of these treatments leads to a high efficiency in disinfection. The results showed that the total inactivation of the E. Coli stain is reached in half a minute, while that of P. aeruginosa is reached in 20 min. The use of an economic stainless steel electrode allowed us to observe that, for pulsate frequencies higher than 103 s− 1, the formation of active chlorine increased whereas the corrosion speed decreased.
Journal: Materials Science and Engineering: C - Volume 28, Issues 5–6, 1 July 2008, Pages 901–905