Showing posts with label Water. Show all posts
Showing posts with label Water. Show all posts
Friday, October 14
Weekly Newsletter - 10/16
Saturday, October 1
Ward Newsletter - October
Wednesday, April 27
Emergency Disinfection of Water -- EPA
Find more information at http://water.epa.gov/drink/emerprep/emergencydisinfection.cfm.
Choose a disinfection method
Boiling and chemical treatment are two general methods used to effectively disinfect small quantities of filtered and settled water.
Boiling
Boiling is the surest method to make water safe to drink and kill disease-causing microorganisms like Giardia lamblia and Cryptosporidium, which are frequently found in rivers and lakes.
These disease-causing organisms are less likely to occur in well water (as long as it has not been affected by flood waters). If not treated properly and neutralized, Giardia may cause diarrhea, fatigue, and cramps after ingestion. Cryptosporidium is highly resistant to disinfection. It may cause diarrhea, nausea and/or stomach cramps. People with severely weakened immune systems are likely to have more severe and more persistent symptoms than healthy individuals. Boil filtered and settled water vigorously for one minute (at altitudes above one mile, boil for three minutes). To improve the flat taste of boiled water, aerate it by pouring it back and forth from one container to another and allow it to stand for a few hours, or add a pinch of salt for each quart or liter of water boiled.
These disease-causing organisms are less likely to occur in well water (as long as it has not been affected by flood waters). If not treated properly and neutralized, Giardia may cause diarrhea, fatigue, and cramps after ingestion. Cryptosporidium is highly resistant to disinfection. It may cause diarrhea, nausea and/or stomach cramps. People with severely weakened immune systems are likely to have more severe and more persistent symptoms than healthy individuals. Boil filtered and settled water vigorously for one minute (at altitudes above one mile, boil for three minutes). To improve the flat taste of boiled water, aerate it by pouring it back and forth from one container to another and allow it to stand for a few hours, or add a pinch of salt for each quart or liter of water boiled.
If boiling is not possible, chemical disinfection of filtered and settled water collected from a well, spring, river, or other surface water body will still provide some health benefits and is better than no treatment at all.
Chemical Treatment
When boiling is not practical, certain chemicals will kill most harmful or disease-causing organisms.
For chemical disinfection to be effective, the water must be filtered and settled first. Chlorine and iodine are the two chemicals commonly used to treat water. They are somewhat effective in protecting against exposure to Giardia, but may not be effective in controlling more resistant organisms like Cryptosporidium. Chlorine is generally more effective than iodine in controlling Giardia, and both disinfectants work much better in warm water.
For chemical disinfection to be effective, the water must be filtered and settled first. Chlorine and iodine are the two chemicals commonly used to treat water. They are somewhat effective in protecting against exposure to Giardia, but may not be effective in controlling more resistant organisms like Cryptosporidium. Chlorine is generally more effective than iodine in controlling Giardia, and both disinfectants work much better in warm water.
You can use a non-scented, household chlorine bleach that contains a chlorine compound to disinfect water.
Do not use non-chlorine bleach to disinfect water. Typically, household chlorine bleaches will be 5.25% available chlorine. Follow the procedure written on the label. When the necessary procedure is not given, find the percentage of available chlorine on the label and use the information in the following table as a guide. (Remember, 1/8 teaspoon and 8 drops are about the same quantity.
Do not use non-chlorine bleach to disinfect water. Typically, household chlorine bleaches will be 5.25% available chlorine. Follow the procedure written on the label. When the necessary procedure is not given, find the percentage of available chlorine on the label and use the information in the following table as a guide. (Remember, 1/8 teaspoon and 8 drops are about the same quantity.
Available Chlorine Drops per Qt/Gallon of Clear Water Drops per Liter of Clear Water
1% 10 per Qt - 40 per Gallon 10 per Liter
4-6 % 2 per Qt - 8 per Gallon (1/8 tsp) 2 per Liter
7-10 % 1 per Qt - 4 per Gallon 1 per Liter
(If the strength of the bleach is unknown, add ten drops per quart or liter of filtered and settled water. Double the amount of chlorine for cloudy, murky or colored water or water that is extremely cold.)
Mix the treated water thoroughly and allow it to stand, preferably covered, for 30 minutes. The water should have a slight chlorine odor. If not, repeat the dosage and allow the water to stand for an additional 15 minutes. If the treated water has too strong a chlorine taste, allow the water to stand exposed to the air for a few hours or pour it from one clean container to another several times.
You can use granular calcium hypochlorite to disinfect water.
Add and dissolve one heaping teaspoon of high-test granular calcium hypochlorite (approximately ¼ ounce) for each two gallons of water, or 5 milliliters (approximately 7 grams) per 7.5 liters of water. The mixture will produce a stock chlorine solution of approximately 500 milligrams per liter, since the calcium hypochlorite has available chlorine equal to 70 percent of its weight. To disinfect water, add the chlorine solution in the ratio of one part of chlorine solution to each 100 parts of water to be treated. This is roughly equal to adding 1 pint (16 ounces) of stock chlorine to each 12.5 gallons of water or (approximately ½ liter to 50 liters of water) to be disinfected. To remove any objectionable chlorine odor, aerate the disinfected water by pouring it back and forth from one clean container to another.
Add and dissolve one heaping teaspoon of high-test granular calcium hypochlorite (approximately ¼ ounce) for each two gallons of water, or 5 milliliters (approximately 7 grams) per 7.5 liters of water. The mixture will produce a stock chlorine solution of approximately 500 milligrams per liter, since the calcium hypochlorite has available chlorine equal to 70 percent of its weight. To disinfect water, add the chlorine solution in the ratio of one part of chlorine solution to each 100 parts of water to be treated. This is roughly equal to adding 1 pint (16 ounces) of stock chlorine to each 12.5 gallons of water or (approximately ½ liter to 50 liters of water) to be disinfected. To remove any objectionable chlorine odor, aerate the disinfected water by pouring it back and forth from one clean container to another.
You can use chlorine tablets to disinfect filtered and settled water.
Chlorine tablets containing the necessary dosage for drinking water disinfection can be purchased in a commercially prepared form. These tablets are available from drug and sporting goods stores and should be used as stated in the instructions. When instructions are not available, use one tablet for each quart or liter of water to be purified.
Chlorine tablets containing the necessary dosage for drinking water disinfection can be purchased in a commercially prepared form. These tablets are available from drug and sporting goods stores and should be used as stated in the instructions. When instructions are not available, use one tablet for each quart or liter of water to be purified.
You can use tincture of iodine to disinfect filtered and settled water.
Common household iodine from the medicine chest or first aid kit may be used to disinfect water. Add five drops of 2 percent U.S. or your country’s approved Pharmacopeia tincture of iodine to each quart or liter of clear water. For cloudy water add ten drops and let the solution stand for at least 30 minutes.
Common household iodine from the medicine chest or first aid kit may be used to disinfect water. Add five drops of 2 percent U.S. or your country’s approved Pharmacopeia tincture of iodine to each quart or liter of clear water. For cloudy water add ten drops and let the solution stand for at least 30 minutes.
You can use iodine tablets to disinfect filtered and settled water.
Purchase commercially prepared iodine tablets containing the necessary dosage for drinking water disinfection at drug and sporting goods stores. Use as stated in instructions. When instructions are not available, use one tablet for each quart or liter of filtered and settled water to be purified.
Purchase commercially prepared iodine tablets containing the necessary dosage for drinking water disinfection at drug and sporting goods stores. Use as stated in instructions. When instructions are not available, use one tablet for each quart or liter of filtered and settled water to be purified.
Information taken from
EPA
EPA
Water Treatment -- FEMA
Find more information at http://www.fema.gov/plan/prepare/watermanage.shtm
Treat all water of uncertain quality before using it for drinking, food washing or preparation, washing dishes, brushing teeth, or making ice. In addition to having a bad odor and taste, contaminated water can contain microorganisms (germs) that cause diseases such as dysentery, cholera, typhoid, and hepatitis.
There are many ways to treat water. None is perfect. Often the best solution is a combination of methods.
Make sure you have the necessary materials in your disaster supplies kit for the chosen water treatment method.
STEP 1: Before treating, let any suspended particles settle to the bottom or strain them through coffee filters or layers of clean cloth.
STEP 2: There are three water treatment methods. They are as follows:
These instructions are for treating water of uncertain quality in an emergency situation, when no other reliable clean water source is available, or you have used all of your stored water.
Boiling
Boiling is the safest method of treating water. In a large pot or kettle, bring water to a rolling boil for 1 full minute, keeping in mind that some water will evaporate. Let the water cool before drinking. [Boil for 3 minutes if you are at 5280 ft or higher (1 mile)]
Boiled water will taste better if you put oxygen back into it by pouring the water back and forth between two clean containers. This also will improve the taste of stored water.
Chlorination
You can use household liquid bleach to kill microorganisms. Use only regular household liquid bleach that contains 5.25 to 6.0 percent sodium hypochlorite. Do not use scented bleaches, color safe bleaches, or bleaches with added cleaners. Because the potency of bleach diminishes with time, use bleach from a newly opened or unopened bottle.
Add 16 drops (1/8 teaspoon) of bleach per gallon of water, stir, and let stand for 30 minutes. The water should have a slight bleach odor. If it doesn’t, then repeat the dosage and let stand another 15 minutes. If it still does not smell of chlorine, discard it and find another source of water.
Other chemicals, such as iodine or water treatment products sold in camping or surplus stores that do not contain 5.25 to 6.0 percent sodium hypochlorite as the only active ingredient, are not recommended and should not be used.
Distillation
While the two methods described above will kill most microbes in water, distillation will remove microbes (germs) that resist these methods, as well as heavy metals, salts, and most other chemicals.
Distillation involves boiling water and then collecting only the vapor that condenses. The condensed vapor will not include salt or most other impurities. To distill, fill a pot halfway with water. Tie a cup to the handle on the pot's lid so that the cup will hang right-side-up when the lid is upside-down (make sure the cup is not dangling into the water) and boil the water for 20 minutes. The water that drips from the lid into the cup is distilled. [There is a photo on FEMA’s website showing how to do this.]
Boiling, Chlorination and distillation will kill microbes. Distillation will remove other contaminants (heavy metals, salts, and most other chemicals) but boiling and chlorination will not.
Information taken from FEMA
Treat all water of uncertain quality before using it for drinking, food washing or preparation, washing dishes, brushing teeth, or making ice. In addition to having a bad odor and taste, contaminated water can contain microorganisms (germs) that cause diseases such as dysentery, cholera, typhoid, and hepatitis.
There are many ways to treat water. None is perfect. Often the best solution is a combination of methods.
Make sure you have the necessary materials in your disaster supplies kit for the chosen water treatment method.
STEP 1: Before treating, let any suspended particles settle to the bottom or strain them through coffee filters or layers of clean cloth.
STEP 2: There are three water treatment methods. They are as follows:
These instructions are for treating water of uncertain quality in an emergency situation, when no other reliable clean water source is available, or you have used all of your stored water.
Boiling
Boiling is the safest method of treating water. In a large pot or kettle, bring water to a rolling boil for 1 full minute, keeping in mind that some water will evaporate. Let the water cool before drinking. [Boil for 3 minutes if you are at 5280 ft or higher (1 mile)]
Boiled water will taste better if you put oxygen back into it by pouring the water back and forth between two clean containers. This also will improve the taste of stored water.
Chlorination
You can use household liquid bleach to kill microorganisms. Use only regular household liquid bleach that contains 5.25 to 6.0 percent sodium hypochlorite. Do not use scented bleaches, color safe bleaches, or bleaches with added cleaners. Because the potency of bleach diminishes with time, use bleach from a newly opened or unopened bottle.
Add 16 drops (1/8 teaspoon) of bleach per gallon of water, stir, and let stand for 30 minutes. The water should have a slight bleach odor. If it doesn’t, then repeat the dosage and let stand another 15 minutes. If it still does not smell of chlorine, discard it and find another source of water.
Other chemicals, such as iodine or water treatment products sold in camping or surplus stores that do not contain 5.25 to 6.0 percent sodium hypochlorite as the only active ingredient, are not recommended and should not be used.
Distillation
While the two methods described above will kill most microbes in water, distillation will remove microbes (germs) that resist these methods, as well as heavy metals, salts, and most other chemicals.
Distillation involves boiling water and then collecting only the vapor that condenses. The condensed vapor will not include salt or most other impurities. To distill, fill a pot halfway with water. Tie a cup to the handle on the pot's lid so that the cup will hang right-side-up when the lid is upside-down (make sure the cup is not dangling into the water) and boil the water for 20 minutes. The water that drips from the lid into the cup is distilled. [There is a photo on FEMA’s website showing how to do this.]
Boiling, Chlorination and distillation will kill microbes. Distillation will remove other contaminants (heavy metals, salts, and most other chemicals) but boiling and chlorination will not.
Information taken from FEMA
WATER PURIFICATION GUIDELINES
Step 1: Clarify
Cloudy or dirty water must first be made clear. It may be passed through filter paper, fine cloth, or other filter. It may be allowed to settle and the clear water on top carefully drawn. Filtered or clear settled water should always be disinfected before use.
Step 2: Disinfect
Boiling Method
Bringing water to a rolling boil for 3 to 5 minutes will kill most water-borne microorganisms. However, prolonged boiling of small quantities of water may concentrate toxic contaminants if present.
Bleach Method
Adding 1/8 of a teaspoon (8 drops) of fresh liquid household chlorine bleach (5 to 6% sodium hypochlorite) to every gallon (4 liters) of water will kill most microorganisms. Only household bleach without thickeners, scents, or additives should be used. The use of bleach does not address toxic contamination.
Commercial Water Filters
Commercial water filters can effectively filter and purify water contaminated with microorganisms, toxic chemicals, and heavy metals. Their effectiveness depends on design, condition, and proper use. Water filters produced by Seychelle have been used successfully by Church missionaries for many years.
Information from ProvidentLiving.org.
Saturday, April 23
Weekly Newsletter - 4/24
To enlarge the photo, click on the image and then click again and it should magnify.
Saturday, April 16
Weekly Newsletter - 4/17
To enlarge the photo, click on the image and then click again and it should magnify. If you would like to receive a paper copy of this newsletter, please contact Shannon Moake.
ROTATE YOUR WATER
We should rotate our stored water supply every six months so it stays fresh. If you haven’t rotated your water recently, do it this week!
1. Store at least 1 gallon per person, per day for drinking. Storing another ½ - 1 gallon per person for food prep and hygiene is recommended.
2. Store water from the source you’re currently drinking.
3. Store water in new, thoroughly cleaned, heavy-duty, plastic containers with tight-fitting lids.
4. Store water away from paint products and other chemicals.
5. Don’t store water in metal containers or in plastic containers that were previously filled with food, milk, nonfood products or chemicals.
Thursday, April 7
WATER STORAGE GUIDELINES -- PROVIDENT LIVING
Commercially bottled water in PETE (or PET) plastic containers may be purchased. Follow the container’s “best if used by” dates as a rotation guideline. Avoid plastic containers that are not PETE plastic.
If you choose to package water yourself, consider the following guidelines:
Containers
• Use only food-grade containers. Smaller containers made of PETE plastic or heavier plastic buckets or drums work well.
• Clean, sanitize, and thoroughly rinse all containers prior to use. A sanitizing solution can be prepared by adding 1 teaspoon (5 ml) of liquid household chlorine bleach (5 to 6% sodium hypochlorite) to one quart (1 liter) of water. Only household bleach without thickeners, scents, or additives should be used.
• Do not use plastic milk jugs, because they do not seal well and tend to become brittle over time.
• Do not use containers previously used to store non-food products.
Water Pretreatment
• Water from a chlorinated municipal water supply does not need further treatment when stored in clean, food-grade containers.
• Non-chlorinated water should be treated with bleach. Add 1/8 of a teaspoon (8 drops) of liquid household chlorine bleach (5 to 6% sodium hypochlorite) for every gallon (4 liters) of water. Only household bleach without thickeners, scents, or additives should be used.
Storage
• Containers should be emptied and refilled regularly.
• Store water only where potential leakage would not damage your home or apartment.
• Protect stored water from light and heat. Some containers may also require protection from freezing.
• The taste of stored water can be improved by pouring it back and forth between two containers before use.
If your water supply is not known to be safe or has become polluted, it should be purified before use. Water purification is generally a two-step process.
Click here to see water purification guidelines from ProvidentLiving.org.
Click here to see water purification guidelines from EPA.
Click here to see water purification guidelines from FEMA.
Information from ProvidentLiving.org.
If you choose to package water yourself, consider the following guidelines:
Containers
• Use only food-grade containers. Smaller containers made of PETE plastic or heavier plastic buckets or drums work well.
• Clean, sanitize, and thoroughly rinse all containers prior to use. A sanitizing solution can be prepared by adding 1 teaspoon (5 ml) of liquid household chlorine bleach (5 to 6% sodium hypochlorite) to one quart (1 liter) of water. Only household bleach without thickeners, scents, or additives should be used.
• Do not use plastic milk jugs, because they do not seal well and tend to become brittle over time.
• Do not use containers previously used to store non-food products.
Water Pretreatment
• Water from a chlorinated municipal water supply does not need further treatment when stored in clean, food-grade containers.
• Non-chlorinated water should be treated with bleach. Add 1/8 of a teaspoon (8 drops) of liquid household chlorine bleach (5 to 6% sodium hypochlorite) for every gallon (4 liters) of water. Only household bleach without thickeners, scents, or additives should be used.
Storage
• Containers should be emptied and refilled regularly.
• Store water only where potential leakage would not damage your home or apartment.
• Protect stored water from light and heat. Some containers may also require protection from freezing.
• The taste of stored water can be improved by pouring it back and forth between two containers before use.
If your water supply is not known to be safe or has become polluted, it should be purified before use. Water purification is generally a two-step process.
Click here to see water purification guidelines from ProvidentLiving.org.
Click here to see water purification guidelines from EPA.
Click here to see water purification guidelines from FEMA.
Information from ProvidentLiving.org.
Subscribe to:
Posts (Atom)