Changes

Boiling

48 bytes added, 19:29, 13 July 2012

→‎Suitable conditions

- Uses common knowledge <br>

- Gernerally uses locally available materials <br>

- Proven inactivation of all bacteria, viruses and protozoa, even in turbid or contaminated water<br>- Socio-cultural acceptance of boiling for water treatment, particularly in tea-consuming cultures<br>- Easy and very effective<br>

| valign="top" | - Inefficient <br>

- Requires a considerable amount of energy (wood, charcoal, fuel) <br>

- Time consuming<br>

- Does not remove suspended or dissolved compounds <br>

- Lack of residual protection against contamination<br>- Potential for burn injuries<br>- Potentially high cost of carbon-based fuel source (with concurrent deforestation risk) and the opportunity cost of collecting fuel<br>- Potential user taste objections<br>- Potential for incomplete water treatment if users do not bring water to full boiling temperature<br>- Indoor pollution: increased risk of respiratory infections from indoor stoves or fires<br>- After boiling, water needs cooling down (cannot be consumed immediately)<br>- Deforestation (approx. 1 kg wood/1 litre water)<br>- CO2 emission<br>

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