Inactivation of enteric adenovirus and feline calicivirus by ozone

Jeanette A. Thurston-Enriquez, Charles N. Haas, Joseph Jacangelo, Charles P Gerba

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Little information is available regarding the effectiveness of ozone on the inactivation of caliciviruses and enteric adenoviruses. Inactivation experiments were conducted with feline calicivirus (FCV), closely related to the human caliciviruses based on nucleic acid organization and capsid architecture, and adenovirus type 40 (AD40). Experiments were carried out in buffered disinfectant demand free water at pH 7 and 5°C. Ct values; concentration of ozone multiplied by contact time with virus; were determined from application of the efficiency factor hom (EFH) model. Ct values for 4-log (99.99%) ozone inactivation at 5°C and pH 7 ranged from 0.07 to 0.60 mg/l min for AD40 and <0.01 to 0.03 mg/l min for FCV. Ct values listed in the US environmental protection agency "Guidance Manual for Compliance with Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources" were higher than Ct values generated by this study. Very low ozone residuals (<0.01(mg/l) substantially inactivated FCV and AD40 under the studied conditions.

Original languageEnglish (US)
Pages (from-to)3650-3656
Number of pages7
JournalWater Research
Volume39
Issue number15
DOIs
StatePublished - Sep 2005

Fingerprint

Ozone
ozone
Disinfectants
Disinfection
Nucleic acids
Environmental Protection Agency
nucleic acid
Surface waters
Viruses
disinfection
compliance
Water
virus
experiment
Experiments
surface water
water

Keywords

  • Adenovirus
  • Calicivirus
  • Disinfection
  • Ozone
  • Viral inactivation
  • Virus

ASJC Scopus subject areas

  • Earth-Surface Processes

Cite this

Inactivation of enteric adenovirus and feline calicivirus by ozone. / Thurston-Enriquez, Jeanette A.; Haas, Charles N.; Jacangelo, Joseph; Gerba, Charles P.

In: Water Research, Vol. 39, No. 15, 09.2005, p. 3650-3656.

Research output: Contribution to journalArticle

Thurston-Enriquez, Jeanette A. ; Haas, Charles N. ; Jacangelo, Joseph ; Gerba, Charles P. / Inactivation of enteric adenovirus and feline calicivirus by ozone. In: Water Research. 2005 ; Vol. 39, No. 15. pp. 3650-3656.
@article{cdf2ba341d6747339bfaaa913448112e,
title = "Inactivation of enteric adenovirus and feline calicivirus by ozone",
abstract = "Little information is available regarding the effectiveness of ozone on the inactivation of caliciviruses and enteric adenoviruses. Inactivation experiments were conducted with feline calicivirus (FCV), closely related to the human caliciviruses based on nucleic acid organization and capsid architecture, and adenovirus type 40 (AD40). Experiments were carried out in buffered disinfectant demand free water at pH 7 and 5°C. Ct values; concentration of ozone multiplied by contact time with virus; were determined from application of the efficiency factor hom (EFH) model. Ct values for 4-log (99.99{\%}) ozone inactivation at 5°C and pH 7 ranged from 0.07 to 0.60 mg/l min for AD40 and <0.01 to 0.03 mg/l min for FCV. Ct values listed in the US environmental protection agency {"}Guidance Manual for Compliance with Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources{"} were higher than Ct values generated by this study. Very low ozone residuals (<0.01(mg/l) substantially inactivated FCV and AD40 under the studied conditions.",
keywords = "Adenovirus, Calicivirus, Disinfection, Ozone, Viral inactivation, Virus",
author = "Thurston-Enriquez, {Jeanette A.} and Haas, {Charles N.} and Joseph Jacangelo and Gerba, {Charles P}",
year = "2005",
month = "9",
doi = "10.1016/j.watres.2005.06.006",
language = "English (US)",
volume = "39",
pages = "3650--3656",
journal = "Water Research",
issn = "0043-1354",
publisher = "Elsevier Limited",
number = "15",

}

TY - JOUR

T1 - Inactivation of enteric adenovirus and feline calicivirus by ozone

AU - Thurston-Enriquez, Jeanette A.

AU - Haas, Charles N.

AU - Jacangelo, Joseph

AU - Gerba, Charles P

PY - 2005/9

Y1 - 2005/9

N2 - Little information is available regarding the effectiveness of ozone on the inactivation of caliciviruses and enteric adenoviruses. Inactivation experiments were conducted with feline calicivirus (FCV), closely related to the human caliciviruses based on nucleic acid organization and capsid architecture, and adenovirus type 40 (AD40). Experiments were carried out in buffered disinfectant demand free water at pH 7 and 5°C. Ct values; concentration of ozone multiplied by contact time with virus; were determined from application of the efficiency factor hom (EFH) model. Ct values for 4-log (99.99%) ozone inactivation at 5°C and pH 7 ranged from 0.07 to 0.60 mg/l min for AD40 and <0.01 to 0.03 mg/l min for FCV. Ct values listed in the US environmental protection agency "Guidance Manual for Compliance with Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources" were higher than Ct values generated by this study. Very low ozone residuals (<0.01(mg/l) substantially inactivated FCV and AD40 under the studied conditions.

AB - Little information is available regarding the effectiveness of ozone on the inactivation of caliciviruses and enteric adenoviruses. Inactivation experiments were conducted with feline calicivirus (FCV), closely related to the human caliciviruses based on nucleic acid organization and capsid architecture, and adenovirus type 40 (AD40). Experiments were carried out in buffered disinfectant demand free water at pH 7 and 5°C. Ct values; concentration of ozone multiplied by contact time with virus; were determined from application of the efficiency factor hom (EFH) model. Ct values for 4-log (99.99%) ozone inactivation at 5°C and pH 7 ranged from 0.07 to 0.60 mg/l min for AD40 and <0.01 to 0.03 mg/l min for FCV. Ct values listed in the US environmental protection agency "Guidance Manual for Compliance with Filtration and Disinfection Requirements for Public Water Systems Using Surface Water Sources" were higher than Ct values generated by this study. Very low ozone residuals (<0.01(mg/l) substantially inactivated FCV and AD40 under the studied conditions.

KW - Adenovirus

KW - Calicivirus

KW - Disinfection

KW - Ozone

KW - Viral inactivation

KW - Virus

UR - http://www.scopus.com/inward/record.url?scp=24344506587&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=24344506587&partnerID=8YFLogxK

U2 - 10.1016/j.watres.2005.06.006

DO - 10.1016/j.watres.2005.06.006

M3 - Article

C2 - 16061270

AN - SCOPUS:24344506587

VL - 39

SP - 3650

EP - 3656

JO - Water Research

JF - Water Research

SN - 0043-1354

IS - 15

ER -