Antibacterial and antiviral effectiveness of two household water treatment devices that use monobrominated hydantoinylated polystyrene.
J Water Health
; 14(6): 950-960, 2016 Dec.
Article
em En
| MEDLINE
| ID: mdl-27959873
ABSTRACT
Many different household water treatment (HWT) methods have been researched and promoted to mitigate the serious burden of diarrheal disease in developing countries. However, HWT methods using bromine have not been extensively evaluated. Two gravity-fed HWT devices (AquaSure™ and Waterbird™) were used to test the antimicrobial effectiveness of HaloPure® Br beads (monobrominated hydantoinylated polystyrene) that deliver bromine. As water flows over the beads, reactive bromine species are eluted, which inactivate microorganisms. To assess log10 reduction values (LRVs) for Vibrio cholerae, Salmonella enterica Typhimurium, bacteriophage MS2, human adenovirus 2 (HAdV2), and murine norovirus (MN), these organisms were added to potable water and sewage-contaminated water. These organisms were quantified before and after water treatment by the HWT devices. On average, 6 LRVs against Vibrio were attained, as well as 5 LRVs against Salmonella, 4 LRVs against MS2, 5 LRVs against HAdV2, and 3 LRVs against MN. Disinfection was similar regardless of whether sewage was present. Polymer beads delivering bromine to drinking water are a potentially effective and useful component of HWT methods in developing countries.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poliestirenos
/
Bactérias
/
Vírus
/
Água Potável
/
Purificação da Água
/
Desinfetantes
Idioma:
En
Revista:
J Water Health
Assunto da revista:
SAUDE AMBIENTAL
Ano de publicação:
2016
Tipo de documento:
Article