Preliminary communication

The Influence of Low Amperage Electric Current on Various Bacterial Species in Seawater

Andrea Štifanić ; Studentica Diplomskog sveučilišnog studija Sanitarno inženjerstvo, Medicinski fakultet Sveučilišta u Rijeci
Vanja Vasiljev Marchesi orcid.org/0000-0002-4308-3008 ; Katedra za socijalnu medicinu i epidemiologiju, Medicinski fakultet Sveučilišta u rijeci
Morana Tomljenović ; Katedra za socijalnu medicinu i epidemiologiju, Medicinski fakultet Sveučilišta u rijeci
Tomislav Rukavina orcid.org/0000-0001-6817-3002 ; Katedra za socijalnu medicinu i epidemiologiju, Medicinski fakultet Sveučilišta u rijeci

Abstract

According to literature data low amperage electric current is an alternative method for water disinfection. In our study we wanted to examine its effect on various bacterial species: Staphylococcus epidermidis, Klebsiella pneumoniae and Escherichia coli.
We used device for the generation of low amperage direct electric current. The lethal effect of low amperage direct electric current on bacteria was monitored in standardized seawater suspension with 4,9 A and 24 V.
Staphylococcus epidermidis was shown to be the most sensitive species tested. The lethal effect was achieved after 10 seconds of treatment. The most resistant bacterial species on electric treatment was Klebsiella pneumoniae for which the lethal effect was accomplished after 20 seconds.
Our results indicate that the low amperage electric field treatment is effective for rapid inactivation of bacteria in seawater.

Keywords

seawater; Staphylococcus epidermidis; Klebsiella pneumoniae; Escherichia coli; low amperage direct current; disinfection

Hrčak ID:

59583

URI

https://hrcak.srce.hr/59583

Publication date:

18.10.2010.

Article data in other languages: croatian

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