Sunday, July 31, 2011

Water, water everywhere - bottled water choices in Texas

!±8± Water, water everywhere - bottled water choices in Texas

"Water, water everywhere and not a drop to drink", or so the saying goes. Texas knows this well, with great swaths extreme heat and drought in the interior, and non-potable water from sea in the Gulf region. There may be water, but no one can drink without first treatment.

East Texas is rich in water resources than the rest of the state, but the area experiences shortages, what the public voluntarily, sometimes involuntarily, rationing. Cities such as Houston,Dallas and Austin are particularly vulnerable in case of failure of the public water supply because of the mass of the population. Summer, as well as bringing security gaps for many communities in Texas, as the rain increases around this time and water consumption. Staying healthy - and happy that the health insurance - with enough to meet your needs, but not enough to be less aware of the deficiencies.

Not only the supply of fresh water in the ground decreasedthe years, but so is its quality. Gone are the days when we had our hands in a cool bath stream, and gives confidence to the precious resource that is clean and safe. Viruses, bacteria, parasites, pollutants from runoff and industrial chemicals in abundance, even in seemingly remote places. Texas is far from immune.

Even the tap water has been convicted in recent years, and cities such as Dallas and Houston are just like everyone took a closer look. The Environmental Protection AgencyDefinition of clean water is vague, only that needed to be "bacteriologically safe", but that does not refer to methods of cleaning, or chemicals that may be present. Support groups for free chlorine, fluorides and other man-made chemicals for the purification and enrichment of the water does not free them from any water-borne disease and can ultimately do more harm than good.

The best thing to do is to enter the hot summer months is aware of it, the amount and type of water-They consume. Most local health officials test household tap water on request, free of charge. This test well to ensure safe levels of bacteria, nothing else. If, as many of you are tired of the chemical concentrations in tap water should be bottled alternatives. It 'an easy way to get the insurance premiums and healthy sanitation.

The choice of a mineral water can be confusing, however, many different filter types and classificationsexist. Sucking species that use absorbent materials such as carbon filter contaminants, microfiltration (and hyperfiltration) systems used for capturing the tiny pores and remove impurities and ion exchange resins to remove heavy metals: the three main types of filters. After processing the bottled water from its source in itself, its mineral content and / or individuals classified according to type of treatment. To make life easier, here's a quick overview of the basic types of bottlesWater summarized by the text of nutritional requirements for Healing by James F. Balch, MD and Phyllis A. Balch, CNC

(1) deionized water or demineralized water

Deionized water or demineralized water may have been neutralized by the addition or removal of electrons. In other words, the electrical charge of water has been neutralized. This process removes nitrates, minerals calcium and magnesium, cadmium and heavy metals, barium, lead, and some forms of radio.

(2)Mineral water

Mineral water is mineralized, natural spring water, usually carbonated, and usually bottled in Europe or Canada. Mineral content varies widely depending on source and mineral water was used throughout for the treatment of some defects, play a guessing game, which could be lacking in minerals can be dangerous.

Some waters are also called "mineral" at the bottom just because of certain additives in water treatment, such as club soda, which adds Bicarbonates:Citrate, sodium phosphate and filtered water. To qualify as a true mineral must be bottled directly from the free-flowing source, can not be encouraged or forced from the ground, and must include natural minerals.

(3) natural spring water

This is difficult. The labeling of water "natural", says the consumer only the mineral content was not changed - not if and how it was treated, and if it is based. Similarly, "Spring" has no legal definition in terms ofas shown on the bottled water, so that your favorite "natural spring water" or even do not originate from a source that may or may not come from a clean source, and may or may not have been treated to be. Authentic natural spring water is water that has naturally increased the surface from underground deposits.

The good news is that the most serious natural spring water companies voluntarily list their origin on the label, and offer a toll free number for questions, the answer of how it wastreated, what is the mineral content, and what method was used to test contamination.

(4) steam-distilled water

Steam distilled water is considered one of the most healthy of the purest forms of water available and is cleaned of impurities by distillation - that is, water is boiled and cooled to condense the steam in a separate chamber where it is allowed and condense into a liquid form. The result is a virtually water free of bacteria, viruses, chemicals,Minerals and pollutants. Minerals can be added for healthy again.

It might at first seem a little 'no use to extract the minerals, only to return by hand, but on closer inspection, it makes sense. The mineral water is not necessarily free from impurities and chemicals with all the shots in our water systems (natural or artificial), it is best to remove these impurities, and add back some minerals, like someone just to keep the toxic contaminantsSave minerals. Many doctors also believe that the distilled water vapor acts as a body wash, the leaching of inorganic materials in cells and tissues, and refused to remove them from the body.

(5) reverse osmosis water

Osmosis is the natural process of a solute moving from a region of low solute concentration to an area of ​​high concentration of dissolved substances through a membrane, such as a cell membrane. Reverse osmosis, then the opposite of this process. Since the solute is forced through aFrom an area of ​​high pressure (solute) concentration in a region of lower concentration of impurities are filtered. This process is known for its use in desalination known, but in recent years, doctors have learned through health benefits RO.

In the field of water filtration, RO in reality as in the highest category, "hyperfiltration" - on the micro-and nano-filtration - for his ability in everything nm or larger filtering surface. Microfiltration forFor example, to only 500 nm or more of the screen. The result is a virtually water free of microorganisms and contaminants.

There is some controversy over which one is newer - distillation or reverse osmosis. They are, in fact, extremely effective both systems, both of which are readily available in the market for natural health, and both have their advantages. Distillers are generally better to remove the most common mineral components, such as sodium, while the reverse osmosis systems, withcarbon filters are better corrected to remove volatile chemicals with a low boiling point, such as chloramines. Nor can one speak enough minerals - RO leaves something 'more, but usually only 5%.

In fact, the content of mineral water is not the problem, as these requirements easily done through a healthy diet. What is of greater importance for most of the levels of bacteria, viruses, parasites and pollutants. Both of these filters very effectively. Favorites are oftencome just for the fun.

If you choose a good natural spring water, or go all to buy their own reverse osmosis system, water is the most important thing that you consume on a daily basis. Be aware of your contribution, especially because it intervenes in the summer heat, and your season is a healthy, sun-filled fun to fill.

What you eat and drink is definitely aging effects on health, like you, and eventually your wallet. If a young person trying toto keep informed and maintain a health condition and lifestyle, you must create a view of the revolutionary, comprehensive and highly affordable individual health insurance solutions Precedent specifically for you. Visit our website, [http://www.precedent.com], for more information. We offer a unique and innovative suite of individual health insurance solutions, including highly competitive HSA-qualified plans and an unparalleled "real time" application and acceptanceProcess.


Water, water everywhere - bottled water choices in Texas

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Saturday, July 23, 2011

Transfert d'espèces ioniques dans les membranes de nanofiltration: Étude expérimentale et modélisation de la sélectivité (French Edition)

!±8± Transfert d'espèces ioniques dans les membranes de nanofiltration: Étude expérimentale et modélisation de la sélectivité (French Edition)


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La nanofiltration est un procédé très utilisé ces dernières années dans de nombreux domaines industriels ou environnementaux tels que le dessalement d'eaux saumâtres, la purification d'effluents, ... L'objectif de ce livre est de présenter l'étude de la séparation de molécules chargées par nanofiltration. Celle-ci repose sur la description des différents phénomènes de transport régissant la rétention d'ions par une membrane chargée. Pour cela, un modèle de connaissance à été élaboré couplant d'une part la description bidimensionnelle du transport dans la couche de polarisation et d'autre part le partage à l'interface membrane / solution et le transport dans les pores. Cette approche fondamentale a été associée à une étude expérimentale de rétention de différentes solutions ioniques par une membrane AFC 40 (PCI). Ces essais nous ont permis de valider notre modèle expérimentalement. Une étude a ensuite été réalisée pour comprendre les interactions entre les mécanismes physiques qui interviennent sur la sélectivité entre les ions mono- et divalents. Pour finir, nous avons porté un regard critique sur les fondements physiques d'un tel modèle afin d'envisager d'éventuelles améliorations.

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