Speeding up solar disinfection (SODIS): effects of hydrogen peroxide, temperature, pH, and copper plus ascorbate on the photoinactivation of E. coli.
J Water Health
; 6(1): 35-51, 2008 Mar.
Article
in En
| MEDLINE
| ID: mdl-17998606
ABSTRACT
Solar disinfection, or SODIS, shows tremendous promise for point-of-use drinking water treatment in developing countries, but can require 48 h or more for adequate disinfection in cloudy weather. In this research, we show that a number of low-cost additives are capable of accelerating SODIS. These additives included 100-1000 muM hydrogen peroxide, both at room temperature and at elevated temperatures, 0.5 - 1% lemon and lime juice, and copper metal or aqueous copper plus ascorbate, with or without hydrogen peroxide. Laboratory and field experiments indicated that additives might make SODIS more rapid and effective in both sunny and cloudy weather, developments that could help make the technology more effective and acceptable to users.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Ascorbic Acid
/
Sunlight
/
Disinfection
/
Water Purification
/
Copper
/
Escherichia coli
/
Hot Temperature
/
Hydrogen Peroxide
Language:
En
Journal:
J Water Health
Journal subject:
SAUDE AMBIENTAL
Year:
2008
Type:
Article
Affiliation country:
United States