Steps of Water Purification
Rid your drinking water of contaminants
By Jeffrey Jenkins
Governments typically set standards for maximum and minimum amounts of contaminants allowed in drinking water. Water purification involves removing potentially harmful materials, chemicals and contaminants from drinking water. To purify your water at home, you can use filters, iodine or chlorine bleach.
- What You Need to Know
- Consider the most cost-effective, time-efficient water purification method for you before making a decision.
Boil your water. Boiling water will kill most types of disease-causing organisms present in the water and will definitely purify it, but you can't immediately drink scalding water. According to the Environmental Protection Agency (EPA), you should boil the water for one minute, allow it to cool and then store it in clean containers. For altitudes above one mile, boil the water for three minutes, according to the EPA.
Install a water filter on your sink to purify your water. Two different types of filters are available. One is mounted under the sink; the other is mounted right on the faucet. The under-the-sink model filters all the water all the time and is a bit more expensive than the faucet-mounted filter and is also more complicated to install. The faucet filter is less expensive and easily mounts on the tap, but you must change the filter often. It does have the advantage of allowing you to turn the filter off if you're just running water to mop the floor or for purposes other than drinking.
Use iodine to purify your water. According to the University of Minnesota, you should use iodine that is two percent United States Pharmacopeia strength. Use 20 drops of iodine per gallon of water for clear water and 40 drops of iodine per gallon of water for cloudy water.
Use chlorine bleach to purify your water, but first check the label to make sure that chlorine bleach is the only active ingredient. According to the University of Minnesota, you shouldn't use bleach that contains soap. Use 40 drops of chlorine bleach per gallon of water for 1 percent chlorine; use 8 drops per gallon of water for 2 to 6 percent chlorine; use 4 drops per gallon of water for 7 to 10 percent chlorine and use 10 drops per gallon of water if you don't know the percentage of chlorine, according to the University of Minnesota. Mix the chlorine bleach with the water, and let it stand for a half hour so that the water gives off a chlorine odor. If it doesn't, repeat the dosage and allow it to stand for another 15 minutes, according to the University of Minnesota.
About the Author
Jeffrey Jenkins is a regular contributor to DexKnows.
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