Household Water Treatment and Safe Storage Factsheet: Source ...
Household Water Treatment and Safe Storage Factsheet: Source ...
Household Water Treatment and Safe Storage Factsheet: Source ...
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<strong>Household</strong> <strong>Water</strong> <strong>Treatment</strong> <strong>and</strong> <strong>Safe</strong> <strong>Storage</strong><br />
Fact Sheet: Boiling<br />
Key Data<br />
Inlet <strong>Water</strong> Criteria<br />
Any water can be boiled<br />
<strong>Treatment</strong> Efficiency<br />
Bacteria Viruses Protozoa Helminths Turbidity Chemicals<br />
Laboratory 100% 100% 100% 100% 0% 0% 3<br />
Field 97-99% 1,2 Not available Not available Not available 0% 0%<br />
1 Clasen, T. et al (2007)<br />
2 Clasen, T. (2007)<br />
3 May precipitate some dissolved chemicals<br />
<br />
Pathogens are killed when the temperature reaches 100 degrees Celsius<br />
Operating Criteria<br />
Flow Rate Batch Volume Daily <strong>Water</strong> Supply<br />
Not applicable Depends on container size Depends on container size <strong>and</strong> availability of fuel<br />
<br />
<br />
Boil water for 1 minute <strong>and</strong> add 1 minute per 1000 metres of elevation<br />
Boiled water should be kept in the pot covered with a lid until it is consumed<br />
Robustness<br />
<br />
<br />
<br />
Almost all households have the equipment required to boil water<br />
Requires fuel supply<br />
Users may not consistently boil water to save fuel <strong>and</strong> effort<br />
Estimated Lifespan<br />
<br />
<br />
On-going requirement for fuel<br />
Pots used for boiling need may need to be replaced over time<br />
Manufacturing Requirements<br />
Worldwide Producers:<br />
Not applicable<br />
Local Production:<br />
Not applicable<br />
Materials:<br />
Fuel (e.g. wood, charcoal, biomass, biogas, kerosene, propane, solar panels, electricity)<br />
Stove or heater<br />
Pot <strong>and</strong> lid<br />
Fabrication Facilities:<br />
Not applicable<br />
Labour:<br />
Regular collection of some fuels (e.g. wood, charcoal, other biomass)