SURVIVAL EMERGENCY PREPAREDNESS KITS part 4 Water Purification Water can be purified by boiling, distillation or with the use of chemicals. Boiling is self explanatory. Depending on altitude the general rule is to bring water to a boil and keep it rolling for one minute to purify it. Boiling time should be increased at higher elevations. Distillation is defined as a process of separating the component substances from a liquid mixture by selective vaporization and condensation. By boiling the water and capturing the water from the evaporation, we are able to remove the harmful pathogens and turn salt water drinkable. Chemical disinfection is helpful when boiling or filtration may not be an option. The advantages of chemical purification in a emergency preparedness survival kit are the weight and cost. Chemical options for purification are: •Sodium Chlorite - Chlorine Dioxide •Iodine tablets or crystals •Potassium Permanganate Potassium Permanganate Can be used for water purification and can also be mixed with other chemicals (glycerine) to create ignition. Other items that can be carried for water procurement and purification are: Plastic sheet (transparent)(solar still and water catcher) Condom (water carrier) Ziploc bag Dry Bag Poncho Perspiration bags (clear garden bags) Transpiration / Perspiration Bags Water can be gathered without much effort using several clear bags. We place the bag over a tree branch facing the sun and seal it. As the day passes water condenses in the bag and drips to the bottom. We have been able to produce over a cup of water with two bags in a ten hour time period. Care must be taken not to put the bags on a poisonous tree. Please see related articles: •Water Purification •Solar Still •Perspiration / Vegetation Bags
Posted on: Tue, 14 Oct 2014 13:56:15 +0000
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