Electrochemical sterilization of bacteria adsorbed on granular activated carbon

Tadashi Matsunaga; Satoshi Nakasono; Seiichi Masuda

doi:10.1016/0378-1097(92)90471-Y

Electrochemical sterilization of bacteria adsorbed on granular activated carbon

Tadashi Matsunaga^*, Satoshi Nakasono, Seiichi Masuda

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

The electrochemical sterilization of bacteria adsorbed on granular activated carbon (GAC) was demonstrated. The survival ratio of bacteria on GAC was dependent upon the applied potential. The survival ratio of Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Saccharomyces cerevisiae vs. saturated calomel electrode (SCE) was below 1% at 0.75, 0.8, 1.0 and 0.65 V, respectively. The electrochemical sterilization of tap water containing E. coli was carried out when 3.5 ml of the cell suspension (4.0 × 10² cells/ml was incubated with 2.0 g of GAC for 5 h at 0.7 V vs. SCE. The number of E. coli adsorbed on GAC and the cell concentration in the water decreased rapidly. E. coli on GAC were electrochemically killed and the cell numbers did not increase.

Original language	English
Pages (from-to)	255-259
Number of pages	5
Journal	FEMS Microbiology Letters
Volume	93
Issue number	3
DOIs	https://doi.org/10.1016/0378-1097(92)90471-Y
Publication status	Published - 1992 Jun 15
Externally published	Yes

Keywords

Electrochemical sterilization
Granular activated carbon
Growth inhibition
Water treatment

ASJC Scopus subject areas

Microbiology
Molecular Biology
Genetics

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10.1016/0378-1097(92)90471-Y

Cite this

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title = "Electrochemical sterilization of bacteria adsorbed on granular activated carbon",

abstract = "The electrochemical sterilization of bacteria adsorbed on granular activated carbon (GAC) was demonstrated. The survival ratio of bacteria on GAC was dependent upon the applied potential. The survival ratio of Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Saccharomyces cerevisiae vs. saturated calomel electrode (SCE) was below 1% at 0.75, 0.8, 1.0 and 0.65 V, respectively. The electrochemical sterilization of tap water containing E. coli was carried out when 3.5 ml of the cell suspension (4.0 × 102 cells/ml was incubated with 2.0 g of GAC for 5 h at 0.7 V vs. SCE. The number of E. coli adsorbed on GAC and the cell concentration in the water decreased rapidly. E. coli on GAC were electrochemically killed and the cell numbers did not increase.",

keywords = "Electrochemical sterilization, Granular activated carbon, Growth inhibition, Water treatment",

author = "Tadashi Matsunaga and Satoshi Nakasono and Seiichi Masuda",

year = "1992",

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doi = "10.1016/0378-1097(92)90471-Y",

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journal = "FEMS Microbiology Letters",

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T1 - Electrochemical sterilization of bacteria adsorbed on granular activated carbon

AU - Matsunaga, Tadashi

AU - Nakasono, Satoshi

AU - Masuda, Seiichi

PY - 1992/6/15

Y1 - 1992/6/15

N2 - The electrochemical sterilization of bacteria adsorbed on granular activated carbon (GAC) was demonstrated. The survival ratio of bacteria on GAC was dependent upon the applied potential. The survival ratio of Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Saccharomyces cerevisiae vs. saturated calomel electrode (SCE) was below 1% at 0.75, 0.8, 1.0 and 0.65 V, respectively. The electrochemical sterilization of tap water containing E. coli was carried out when 3.5 ml of the cell suspension (4.0 × 102 cells/ml was incubated with 2.0 g of GAC for 5 h at 0.7 V vs. SCE. The number of E. coli adsorbed on GAC and the cell concentration in the water decreased rapidly. E. coli on GAC were electrochemically killed and the cell numbers did not increase.

AB - The electrochemical sterilization of bacteria adsorbed on granular activated carbon (GAC) was demonstrated. The survival ratio of bacteria on GAC was dependent upon the applied potential. The survival ratio of Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Saccharomyces cerevisiae vs. saturated calomel electrode (SCE) was below 1% at 0.75, 0.8, 1.0 and 0.65 V, respectively. The electrochemical sterilization of tap water containing E. coli was carried out when 3.5 ml of the cell suspension (4.0 × 102 cells/ml was incubated with 2.0 g of GAC for 5 h at 0.7 V vs. SCE. The number of E. coli adsorbed on GAC and the cell concentration in the water decreased rapidly. E. coli on GAC were electrochemically killed and the cell numbers did not increase.

KW - Electrochemical sterilization

KW - Granular activated carbon

KW - Growth inhibition

KW - Water treatment

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JO - FEMS Microbiology Letters

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ER -

Electrochemical sterilization of bacteria adsorbed on granular activated carbon

Abstract

Keywords

ASJC Scopus subject areas

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