Electrochemical Chlorine-Free AC Disinfection of Water Contaminated with Salmonella typhimurium Bacteria

被引：14

作者：

Barashkov, N. N. ^{[2
]}

Eisenberg, D. ^{[2
]}

Eisenberg, S. ^{[2
]}

Shegebaeva, G. Sh. ^{[3
]}

Irgibaeva, I. S. ^{[3
]}

Barashkova, I. I. ^{[1
]}

机构：

[1] Russian Acad Sci, NN Semenov Chem Phys Inst, Moscow 119991, Russia

[2] Microtracers Corp, San Francisco, CA 94124 USA

[3] Gumilev Eurasian Natl Univ, Astana 010008, Kazakhstan

来源：

RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2010年 / 46卷 / 03期

关键词：

water disinfection with alternating current; electrochemical treatment; hydroxyl radicals; spin trap; kinetic model; POULTRY CHILLER WATER; ELECTRICAL-STIMULATION; CAMPYLOBACTER-JEJUNI; ELECTROFLOTATION; MICROORGANISMS; POLLUTANTS; CARCASSES;

D O I：

10.1134/S1023193510030079

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Deionized (DI) water contaminated with Salmonella typhimurium (S. typhimurium) bacteria was disinfected by alternating current. Ammonium sulfate was used as electrolyte. Disinfection was carried out in the circulation system including an electrochemical cell with stainless steel electrodes. The process efficiency was estimated and the number of killed bacteria was directly proportional to the water treatment time and concentration of hydroxyl radicals generated by electrolysis. The presence of OH radicals was detected with N,N-dimethyl-p-nitrosoaniline (RNO) used as a spin trap. Similar experiments were carried out with water remaining after poultry washing at poultry farms and additionally contaminated with S. typhimurium bacteria. Measures were recommended to increase the process efficiency and decrease the water treatment time.

引用

页码：306 / 311

页数：6

共 29 条

[1]

BARASHKOV NN, 2007, Patent No. 60963306

[2]

Buckley J. W., 2001, U. S. Patent, Patent No. [6,270,650, 6270650]

[3]

Carter S. D., 2002, U.S. Patent, Patent No. [6,447,718, 6447718]

[4]

Chauvier D. J, 2004, U.S. Patent, Patent No. [6,827,847, 6827847]

[5] ELECTROCATALYSIS IN THE ELECTROCHEMICAL CONVERSION/COMBUSTION OF ORGANIC POLLUTANTS FOR WASTE-WATER TREATMENT [J].

COMNINELLIS, C .

ELECTROCHIMICA ACTA, 1994, 39 (11-12) :1857-1862

[6]

Gillham R. W, 1999, U.S. Patent, Patent No. [5,868,941, 5868941]

[7] Killing of microorganisms by pulsed electric fields [J].

Grahl, T ;

Markl, H .

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 1996, 45 (1-2) :148-157

[8]

Hecking W, 2005, U.S. Patent, Patent No. [6,849,178, 6849178]

[9] Photoelectrochemical mineralization of textile diazo dye pollutants using nanocrystalline WO3 electrodes [J].

Hepel, M ;

Luo, J .

ELECTROCHIMICA ACTA, 2001, 47 (05) :729-740

[10] Chlorine generation and disinfection by electroflotation [J].

Hernlem, BJ ;

Tsai, LS .

JOURNAL OF FOOD SCIENCE, 2000, 65 (05) :834-837

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