TY - JOUR
T1 - Electrochemical disinfection of fish pathogens in seawater without the production of a lethal concentration of chlorine using a flow reactor
AU - Tanaka, Tsuyoshi
AU - Shimoda, Mari
AU - Shionoiri, Nozomi
AU - Hosokawa, Masahito
AU - Taguchi, Tomoyuki
AU - Wake, Hitoshi
AU - Matsunaga, Tadashi
PY - 2013/10
Y1 - 2013/10
N2 - An electrochemical disinfection system employing a honeycombed platinum coated titanium electrode was developed for the disinfection of seawater. Cell suspensions (2l, 103cells/ml) of the fish pathogens, Vibrio alginolyticus, Edwardsiella tarda, Lactococcus garvieae and Vibrio anguillarum were circulated in a reactor equipped with 10 sets of these electrodes at a flow rate of 200ml/min with an applied potential of 1.0V vs. Ag/AgCl reference electrode. The circulated cells were completely disinfected after 3h of treatment, whereas free residual chlorine generated due to seawater electrolysis was below 0.1ppm. In addition, a diphenyl-1-pyrenylphosphine fluorescent assay revealed that lipid peroxidation in the cell membranes of disinfected bacteria was induced probably by reactive oxygen species generated during electrochemical treatment.
AB - An electrochemical disinfection system employing a honeycombed platinum coated titanium electrode was developed for the disinfection of seawater. Cell suspensions (2l, 103cells/ml) of the fish pathogens, Vibrio alginolyticus, Edwardsiella tarda, Lactococcus garvieae and Vibrio anguillarum were circulated in a reactor equipped with 10 sets of these electrodes at a flow rate of 200ml/min with an applied potential of 1.0V vs. Ag/AgCl reference electrode. The circulated cells were completely disinfected after 3h of treatment, whereas free residual chlorine generated due to seawater electrolysis was below 0.1ppm. In addition, a diphenyl-1-pyrenylphosphine fluorescent assay revealed that lipid peroxidation in the cell membranes of disinfected bacteria was induced probably by reactive oxygen species generated during electrochemical treatment.
KW - Disinfection byproducts
KW - Electrochemical disinfection
KW - Flow reactor
KW - Lipid peroxidation
KW - Marine pathogen
UR - http://www.scopus.com/inward/record.url?scp=84883276190&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84883276190&partnerID=8YFLogxK
U2 - 10.1016/j.jbiosc.2013.04.013
DO - 10.1016/j.jbiosc.2013.04.013
M3 - Article
C2 - 23648105
AN - SCOPUS:84883276190
SN - 1389-1723
VL - 116
SP - 480
EP - 484
JO - Journal of Bioscience and Bioengineering
JF - Journal of Bioscience and Bioengineering
IS - 4
ER -
