rdfs:comment
| - To pasteurize water, heat it in the solar box to at least 65 °C (149 °F) and keep the water at that temperature or above for at least 30 minutes. If no thermometer is available, heat until bubbles are rising from the bottom steadily. Natural waxes, such as beeswax, can be used to indicate pasteurization temperature. Also, you can use a WAPI device or the Boil 3, Add 1 Method.
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abstract
| - To pasteurize water, heat it in the solar box to at least 65 °C (149 °F) and keep the water at that temperature or above for at least 30 minutes. If no thermometer is available, heat until bubbles are rising from the bottom steadily. Natural waxes, such as beeswax, can be used to indicate pasteurization temperature. Also, you can use a WAPI device or the Boil 3, Add 1 Method. Solar conditions, weather conditions, latitude and box efficiency are all variables that affect the ability of solar boxes to pasteurize water. As a general guideline, 4 liters (~1 gallon) of water can be pasteurized in about 3 hours on a day with strong sunlight and the sun high in the sky. The plastic-or glass-covered opening should be at least 45 x 60 cm (18" x 24") and have a depth just taller than the water containers inside. Larger boxes can pasteurize more water, smaller less. Pasteurization kills germs and disease-carrying organisms in drinking water including bacteria, rotaviruses, enteroviruses, and cysts commonly transmitted in contaminated water. Pasteurized water is not sterilized, however, and therefore should not be used for medical procedures. Pasteurization does not remove chemical contamination such as pesticides or industrial wastes.
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