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Pulsed high voltage electric discharge disinfection of microbially contaminated liquids
Author(s) -
Anpilov A.M.,
Barkhudarov E.M.,
Christofi N.,
Kop'ev V.A.,
Kossyi I.A.,
Taktakishvili M.I.,
Zadiraka Y.
Publication year - 2002
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1472-765x.2002.01139.x
Subject(s) - contamination , pasteurization , electric discharge , ozone , environmental science , water treatment , human decontamination , environmental chemistry , water disinfection , high voltage , chemistry , materials science , voltage , environmental engineering , waste management , electrode , ecology , biology , food science , organic chemistry , engineering , physics , quantum mechanics
Aims: To examine the use of a novel multielectrode slipping surface discharge (SSD) treatment system, capable of pulsed plasma discharge directly in water, in killing micro‐organisms. Methods and Results: Potable water containingEscherichia coliand somatic coliphages was treated with pulsed electric discharges generated by the SSD. The SSD system was highly efficient in the microbial disinfection of water with a low energy utilization (η ≈ 10–4kW h l–1 ). Conclusions: The SSD treatment was effective in the destruction ofE. coli and its coliphages through the generation of u.v. radiation, ozone and free radicals. Significance and Impact of the Study: The non‐thermal treatment method can be used for the eradication of micro‐organisms in a range of contaminated liquids, including milk, negating the use of pasteurization. The method utilizes multipoint electric discharges capable of treating large volumes of liquid under static and flowing regimes.