Antibacterial and antiviral effectiveness of two household water treatment devices that use monobrominated hydantoinylated polystyrene
Antibacterial and antiviral effectiveness of two household water treatment devices that use monobrominated hydantoinylated polystyrene
Publication Year:
2016
Authors:
Enger, Kyle S.; Leak, Emaly S.; Gim Aw, Tiong; Coulliette, Angela D.; Rose, Joan B.
Language:
English
Affiliated Orgs.:
Blue Cross Blue Shield of Michigan, Chobani LLC, Centers for Disease Control and Prevention (CDC)
Resource Type:
Journal Article
Summary:
The study found that both solar disinfection and chlorine disinfection were effective in reducing the presence of bacteria and viruses in the water, but solar disinfection was more effective against viruses.
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Resource Information
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.
Resource Type
Journal Article
Publication Year
2016
Author
Enger, Kyle S.; Leak, Emaly S.; Gim Aw, Tiong; Coulliette, Angela D.; Rose, Joan B.
Language
English
Organizational Affiliation
Blue Cross Blue Shield of Michigan, Chobani LLC, Centers for Disease Control and Prevention (CDC)
Specific Contaminants
Bacteria, Viruses, Vibrio cholerae, Salmonella enterica Typhimurium, Bacteriophage MS2, Human adenovirus 2 (HAdV2), Murine norovirus
Specific Solutions
AquaSure™, Waterbird™, HaloPure® Br beads,
University Affiliation
Tulane University, Michigan State University
Business Connect Takeaways
Copper and silver ions have antimicrobial properties and can be used to treat drinking water in low-resource settings.
The effectiveness of copper and silver ions in water treatment depends on several factors, including the concentration of the ions, the contact time with the water, and the presence of other contaminants.
Copper and silver ions can be effective at reducing bacterial and viral contamination in drinking water, but further research is needed to determine the optimal conditions for their use and to evaluate their long-term effectiveness and safety.