Sunday, July 28, 2019

Water Purifiers - How Safe is the Water You Drink? - How Safe is the Water You Drink?


By Paul MacIver




The Latin expression 'Aqua pura is Aqua vitae' perhaps best expresses the value of pure water. Translated into English, it literally means 'pure water is the water of life'.

Water is life's mater and matrix, mother and medium. There is no life without water, but water in its raw state is not suitable for drinking. It contains numerous contaminants, which can be dangerous to human health.

But, thanks goes to Science that has invented devices to shield civilization against such aqua ailments. A water purifier is one of such devices that purify our drinking water. A water purifier is a wonderful device that converts raw water so that it tastes like nectar; therefore by this process it makes ordinary tap water perfectly suitable for drinking.

Health Benefits of a Water Purifier:

A water purifier is very beneficial for healthy living. Ordinary untreated water can contain numerous contaminants including bacteria, algae, viruses, fungi, minerals, and man-made chemical pollutants that cannot be seen with the naked eye. These contaminants are very pernicious for one's health.

A water purifier kills these organisms and filtrates the contaminants to make the water perfectly fit for drinking. Thus water purifiers save us from numerous dangerous bacterial and viral diseases that easily spread when water becomes contaminated.

Water Purification Techniques:

Different water purifiers use different techniques of purification. The common techniques used to purify water include boiling, carbon filtering, distilling, reverse osmosis, ion exchange, electrode ionization, water conditioning and plumbo-solvency reduction.

Carbon filtering: This technique is commonly used in home water filters. Charcoal, a form of carbon with a high surface area due to its mode of preparation, adsorbs many compounds, including some toxic compounds. The water is passed through activated charcoal to remove such contaminants. Granular charcoal filtering and sub-micron solid block carbon filtering are the two types of carbon filtering systems.

Granular charcoal is not very effective for removing contaminants such as mercury, volatile organic chemicals, asbestos, pesticides, disinfections byproduct (trihalomethanes), mtbe, pcbs etc. The sub-micron solid block carbon filter is the better system that removes all of the contaminants.

Home water filters drinking water sometimes also contains silver. These small amounts of silver ions can have a bactericidal effect.

Reverse osmosis: The reverse osmosis water system is the technique in which mechanical pressure is applied to an impure solution to force pure water through a semi-permeable membrane. The process is called reverse osmosis, and is theoretically the most thorough method of large-scale water purification.

Ion exchange: Most common ion exchange systems use a zeolite resin bed and simply replace unwanted Ca2+ and Mg2+ ions with benign (soap friendly) Na+ or K+ ions. This is the common water softener. A more rigorous type of ion exchange swaps H+ ions for unwanted cations and hydroxide (OH-) ions for unwanted anions. The result is H+ + OH- → H2O. This system is recharged with hydrochloric acid and sodium hydroxide, respectively. The result is essentially deionized water.

Electrodeionization: It includes passing the water through a positive electrode and a negative electrode. Ion selective membranes allow the positive ions to separate from the water toward the negative electrode and the negative ions toward the positive electrode. It results in high purity de-ionized water. The water is usually passed through a reverse osmosis unit first to remove nonionic organic contaminants.

Water conditioning: This is a method of reducing the effects of hard water. Hardness salts are deposited in water systems subject to heating because the decomposition of bicarbonate ions creates carbonate ions that crystallize out of the saturated solution of calcium or magnesium carbonate. Water with high concentrations of hardness salts can be treated with soda ash (Sodium carbonate) that precipitates out the excess salts, through the common ion effect, as calcium carbonate of very high purity. The precipitated calcium carbonate is traditionally sold to the manufacturers of toothpaste.

Plumbo-solvency reduction: In areas with naturally acidic waters of low conductivity (i.e. surface rainfall in upland mountains of igneous rocks), the water is capable of dissolving lead from any lead pipes that it is carried in. The addition of small quantities of phosphate ion and increasing the pH slightly both assist in greatly reducing plumbo-solvency by creating insoluble lead salts on the inner surfaces of the pipes.



Article Source: https://EzineArticles.com/expert/Paul_MacIver/46533


http://EzineArticles.com/?Water-Purifiers---How-Safe-is-the-Water-You-Drink?&id=160333


WATER TREATMENT & CONDITIONER SYSTEMS


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Sunday, July 21, 2019

Discover What is Floating Around in Your Water and Understand the Need For Drinking Water Filters


By Karen A Graham




Drinking water filters are not a new idea. Many people have been using various forms of filtering their water for years.

One of the earliest forms of water filtration has been used for many years in India. The first type of drinking water filter used was a big round clay pot and as the water was left to stand in the pot the impurities would be absorbed by the clay leaving the water with a sweeter and more refreshing taste.

But what of today? Is there still a need for drinking water filters? The answer to that question is a resounding YES!

Major industrialized nations contribute hugely to the problems with today's water supply. The constant toxic by products from major manufacturing find their way into the water that we use every day.

In addition traces of drugs such as antibiotics and others have found their way into the rivers and water sources of major cities, including school drinking fountains.

This case was highlighted by Ashley Muloy, a 17 year old student, in 1999 when after reading about the finding of drugs in the water supply by European scientists she decided to do some experiements of her own and found the following in every sample that she took antibiotics: penicillin, tetracycline and vancomycin

Lead is another dangerous contaminant that is found in tap water. And it as has been stated there are no safe levels for consuming lead.

It can originate from somewhere between the water main in the street and the household faucet.

The EPA estimates that 98% of all homes have pipes, fixtures or solder joints in the household plumbing that can leach some level of lead into the tap water, an example of this is that all chrome-plated brass and brass plumbing fixtures contain 8% to 15% lead.

So what is an effective way to deal with such a localised contaminant? Drinking water filters fitted to the mains supply is one of the effective ways to deal with this.

But why should we be so worried?

The addition of chlorine to the water supply has been a long standing issue for debate since it was first introduced in the late 1800's as a means of disinfecting the water and killing any bacteria.

Recent studies have shown that According to the U.S. Council of Environmental Quality, "Cancer risk among people using chlorinated water is as much as 93% higher than among those whose water does not contain chlorine."

The reason for this well founded concern is that once chlorine is added to water there is a chemical process that takes place that forms trihalomethanes.

These are the chemical by products of mixing chlorine with other natural compounds. And these trihalomethanes trigger the production of free radicals which cause cellular damage that can lead to cancer and heart disease.

Because the body is made up of over 70% water, and every single cell transaction takes place in water - water is the single most important thing that we can take into our body.

It is a natural healer and avoiding dehydration is the natural preventer of many of our common illnesses including arthritis, asthma, hypertension, headaches and allergies, besides giving us fabulous skin and a healthy digestive system, to name but a few.

So the quality of the water that we consume is paramount to the health of our body.

We are told that we should look after our health and fitness levels and one of the best ways to achieve this is by using drinking water filters at home and increasing the amount of water that we consume on a daily basis.

A drinking water filter needn't cost you the earth but you will find that it will save you an immense amount on the cost of buying bottled water, improve the taste and it will also give you the piece of mind that you and your family always have access to the purest form of water available.




Article Source: https://EzineArticles.com/expert/Karen_A_Graham/208339


http://EzineArticles.com/?Discover-What-is-Floating-Around-in-Your-Water-and-Understand-the-Need-For-Drinking-Water-Filters&id=1249190


Water treatment & conditioner systems


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