When a liquid is in contact with a solid surface, its behavior depends on the relative magnitudes of the surface tension forces and the attractive forces between the molecules of the liquid and of those comprising the surface. If an H2O molecule is more strongly attracted to its own kind, then surface tension will dominate, increasing the curvature of the interface. This is what happens at the interface between water and a hydrophobic surface such as a plastic mixing bowl or a windshield coated with oily material. A clean glass surface, by contrast, has -OH groups sticking out of it which readily attach to water molecules through hydrogen bonding; this causes the water to spread out evenly over the surface, or to wet it. A liquid will wet a surface if the angle at which it makes contact with the surface is more than 90°. The value of this contact angle can be predicted from the properties of the liquid and solid separately.
Water is our most precious resource. The human body requires it each and every day. Without good clean water our world and every human in it, would perish. As more and more people populate our world and pollute our lakes, rivers and streams our water supply is becoming dangerously contaminated. City governments try their best to treat our water to make it safe enough in which to shower and bathe. But is it safe enough to actually drink? Many families are no longer taking that chance. Within the last 8 to 10 years bottled water sales have skyrocketed, while Brita and PUR water filters have become household names. What else can the average American citizen do to safeguard themselves from tainted water?There is an alternative. A way in which your family can have pure, clean, wholesome water at a fraction of the cost of bottled water or small faucet water filters.
Covenant Filtration Group Articles :You're pregnant. Blood volume increases by 40 percent during pregnancy, and extra fluids are also needed for the ongoing manufacturing of amniotic fluid. Water also helps maintain overall well-being during pregnancy. Drinking lots of water helps move along and dilute the body's waste products, lessening problems with constipation and reducing the risk of urinary tract infections. Pregnant women need to drink at least eight 8-ounce glasses of fluid a day to keep body and baby well-hydrated. If you don't like to drink that much plain water, yet are worried about the weight gain from extra juice, flavor your water with just a teaspoon of frozen juice concentrate. Space this fluid intake evenly throughout the day, consuming larger, more frequent drinks along with smaller, more frequent meals. The swelling of ankles, feet, and hands during pregnancy are not signals to cut back on water. Some of this is the normal swelling that occurs with pregnancy, or it may be a sign that your body is retaining too much salt, in which case drinking more water will actually help decrease the swelling.
Drown the cold. You've heard the expression "Starve a fever, feed a cold!" This bit of medical folklore is only half true. It's best to "drown" the fever and the cold with water. Fever makes you perspire and lose water, which not only dehydrates your body, but dehydrates your brain, causing you to think and feel even worse from dehydration. During a cold, the mucus membranes of your nose and breathing passages lose water and dry out. Drinking water keeps these mucus membranes moist, which allows the inflamed lining of your nose and breathing passages to heal more quickly. Dehydration also thickens the mucus, making it difficult for the tiny hair filaments in your nose (called cilia) to oscillate back and forth and move the mucus and the germs along. As a result, the mucus plugs collect in the nose, sinuses, and airways and serve as a culture-medium for bacteria. Keeping the mucus and the membranes moist and water-logged keeps mucus plugs from forming and even getting stuck in the lower airways where they are difficult to cough up. In fact, among pediatricians, water has often been dubbed the "best and most readily-available cough syrup."
There are several factors to consider when deciding whether commercially bottled or your own tap water is best for your family. When you look at the labels on the various bottles of water in the grocery store, here are the terms you are likely to see and what they mean:
Covenant Filtration : Reverse osmosis purification system. This large tank-system attaches to the cold-water pipe under your sink and flushes the water through carbon filters and a membrane that separates out most of the contaminants. Be aware that the system wastes several gallons of water for every one gallon it purifies. Check the model for how much water it wastes.
* Removes nearly all contaminants, including bacteria and industrial chemicals. (Note: this type of system also removes most of the fluoride in your water.) Check individual labels for exactly what it removes. Some systems can remove 95 percent of contaminants.
* May not remove all industrial chemicals, depending on the power of the system.
* Care: Replace filter parts once a year. Replace the membrane less often according to manufacturer's instructions.
* Cost: $700 to $1,000 initially, but the overall filtering cost may be as little as 10 cents a gallon.
3. OTHER WAYS TO IMPROVE YOUR WATER QUALITY
Distill it. In some ways, a distillation system provides the purest water, and in other ways it doesn't. In this type of system, the water is boiled and the vapor collected, with most of the contaminants and bacteria left behind. The problem with this system is that there are still gases, such as chlorine and some pesticides, in the remaining water. Nevertheless, steamed, distilled water is about the purest you can get. Some home distillation systems can remove 98 percent of the contaminants, which leaves you with water that is more pure than with filters.
Covenant Filtration Group Org Water is a ubiquitous chemical substance that is composed of hydrogen and oxygen and is vital for all known forms of life.
In typical usage, water refers only to its liquid form or state, but the substance also has a solid state, ice, and a gaseous state, water vapor or steam. Water covers 71% of the Earth's surface. On Earth, it is found mostly in oceans and other large water bodies, with 1.6% of water below ground in aquifers and 0.001% in the air as vapor, clouds (formed of solid and liquid water particles suspended in air), and precipitation. Oceans hold 97% of surface water, glaciers and polar ice caps 2.4%, and other land surface water such as rivers, lakes and ponds 0.6%. A very small amount of the Earth's water is contained within biological bodies and manufactured products.
Covenant Filtration Group Contact Drown the cold. You've heard the expression "Starve a fever, feed a cold!" This bit of medical folklore is only half true. It's best to "drown" the fever and the cold with water. Fever makes you perspire and lose water, which not only dehydrates your body, but dehydrates your brain, causing you to think and feel even worse from dehydration. During a cold, the mucus membranes of your nose and breathing passages lose water and dry out. Drinking water keeps these mucus membranes moist, which allows the inflamed lining of your nose and breathing passages to heal more quickly. Dehydration also thickens the mucus, making it difficult for the tiny hair filaments in your nose (called cilia) to oscillate back and forth and move the mucus and the germs along. As a result, the mucus plugs collect in the nose, sinuses, and airways and serve as a culture-medium for bacteria. Keeping the mucus and the membranes moist and water-logged keeps mucus plugs from forming and even getting stuck in the lower airways where they are difficult to cough up. In fact, among pediatricians, water has often been dubbed the "best and most readily-available cough syrup."
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