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Safe Household Water Storage
Safe Household Water Storage is a critical component of a Household Water Treatment and Safe Storage (HWTS) system being promoted by the World Health Organization (WHO) worldwide in areas that do not have piped drinking water. In these areas it is not uncommon for drinking water to be stored in a pot, jar, crock or other container in the home. Even if this drinking water was of acceptable microbiological quality initially, it can become contaminated from dirty hands and utensil, such as dirty dippers and cups. Drinking water containers with "narrow dispensers are key" to keeping water from being contaminated while being stored in the home.[1]
Examples of containers
[edit]- Solar Cookers International (SCI) has incorporated the pictured Safe Household Water Storage container in their water pasteurization programs in Kenya. They are part of a Safe Water Package that consists of a CooKit solar cooker, a black pot, a Water Pasteurization Indicator (WAPI), and a Safe Household Water Storage container.[2] The containers are hand made out of clay by local artisans. Their design incorporates a small opening at the top to help prevent children from dipping cups and possibly dirty hands into the drinking water. There is a spigot at the bottom. "Unfortunately, the spigot is almost as expensive as the container itself."[3] The unglazed clay container helps to keep the water naturally somewhat cool in dry climates because a very small amount of the water is absorbed by the container and then evaporates.
- Solar water disinfection (SODIS): A water disinfection technique of placing clear plastic bottles filled with water in the sun and then keeping the disinfected water in the bottles until ready for use. These capped bottles are Safe Household Water Storage containers provided they have been exposed to sufficient sun and raised to a sufficiently elevated temperature.
Background
[edit]The United Nations' Millenium Declaration adopted by its General Assembly in September of 2000 set Millenium Development Goals (MDG) that have a purpose of significantly reducing the proportion of people in the world in extreme poverty. Resolution 19 specifically states with respect to drinking water, "To halve, by the year 2015...the proportion of the world’s people who are unable to reach or to afford safe drinking water..."[4] In 2009 the United Nations published The Millennium Development Goals Report that states: "The world is well on its way to meeting the drinking water target, though some countries still face enormous challenges."Cite error: The <ref> tag has too many names (see the help page).
One way that the World Health Organization (WHO) has supported the safe drinking water goal is with its Household Water Treatment and Safe Storage (HWTS) program which targets people that are not connected to community water systems. Their website states that improved HWTS techniques can dramatically improve drinking water quality and reduce diarrhoeal diseases for those that must rely on unsafe water supplies. It reminds us that there are 1.6 million diarrhoeal deaths per year related to unsafe water, sanitation, and hygiene and that these are mostly of children under 5 years old.[5]
See also
[edit]- Solar water disinfection (SODIS) : Main wikipedia article for a water disinfection technique of placing clear plastic bottles filled with water in the sun and then keeping the disinfected water in the bottles until ready for use.
External links
[edit]- Safe Household Water Storage article, Solar Cooking Archive Wiki with additional information and links, especially regarding Solar Cookers International programs.
- World Health Organization (WHO): Household Water Treatment and Safe Storage (HWTS) program.
- WHO/SDE/WSH/02.07 report: Managing water in the home: accelerated health gains from improved water supply prepared by Professor Mark D. Sobsey, School of Public Health, University of North Carolina, Chapel Hill, North Carolina, USA, report covers many aspects of a HWTS system including storage, treatment, social/economic aspects, and monitoring.
- Portion of above report most pertinent to this article is Chapter 4: Storage and treatment of household water.
- WHO: Other related drinking water quality programs.
References
[edit]- ^
"Safe household water storage". World Health Organization. Retrieved 02 February 2010.
{{cite web}}: Check date values in:|accessdate=(help) - ^
"Solar Cooker Review". Solar Cookers International. November 2007. Retrieved 03 February 2010.
{{cite web}}: Check date values in:|accessdate=(help) - ^ E-mail on 2009-Dec-31 from Kevin Porter, Education Resources Director, Solar Cookers International
- ^
"Resolution adopted by the General Assembly: 55/2. United Nations Millennium Declaration". United Nations. 6-8 September 2000. Retrieved 03 February 2010.
{{cite web}}: Check date values in:|accessdate=(help) - ^
"Household Water Treatment and Safe Storage". World Health Organization. Retrieved 03 February 2010.
{{cite web}}: Check date values in:|accessdate=(help)