Impact of different frequencies in the entrapment of bacterial pathogens from drinking water using dielectrophoretic phenomena

被引：2

作者：

Sankaranarayanan, A. ^{[1
]}

Sankarlal, K. M. Prabu ^{[2
]}

Raja, D. ^{[1
]}

机构：

[1] KS Rangasamy Coll Arts & Sci, Dept Microbiol, Tiruchengode, Tamil Nadu, India

[2] KS Rangasamy Coll Arts & Sci, Dept Elect & Commun, Tiruchengode, Tamil Nadu, India

来源：

JOURNAL OF WATER CHEMISTRY AND TECHNOLOGY | 2016年 / 38卷 / 02期

关键词：

water borne pathogens; drinking water; frequency; dielectrophoretic phenomena; BIOLOGICAL CELLS; MICROBES; FLOW;

D O I：

10.3103/S1063455X16020107

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The article has investigated the removal of water borne pathogens using dielectrophoresis (DEP) filter which is energized by varying the frequency of the applied potential from 10 kHz to 2 MHz with different voltage levels of 5; 10; 15 and 20 V. Separate experiments are conducted in artificially contaminated water samples with Escherichia coli, Staphylococcus aureus and Vibrio cholerae up to 2 h. The impact of signal frequency and voltages on DEP based water treatment system has been analyzed statistically. Results have demonstrated that an AC signal of 20 V with frequency range of 500 kHz to 2 MHz is suitable to remove the tested bacterial population and the rate of removal of E. coli is the highest with a dielectrophoretic filtration efficiency of 77.1%.

引用

页码：117 / 122

页数：6

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