BeautyVitamin.com

Water filtration is the process of separating impurities from water. We are able to make this process work using water filters. Filtration can be done using physical barriers, different chemical processes, or biological processes. Filters are used to purify drinking water, swimming pools, and irrigation.

There are many different types of common filters. There are media filters, which use sand to filter water as it moves from below the rock and sand to the surface. Screen filters, which utilize a screen that separate fine particles out of the water for irrigation among other things. Disk filters are the main water filters for irrigation. It is much like the screen filter, but instead of a screen it uses small disks stacked on top of each other in order to separate the impurities.

Slow sand filters are used to treat raw water found on the surface of the earth. They are usually between one and two meters deep. This system uses a layer of earth called the Schmutzdecke layer which contains bacteria and fungi. This layer purifies the water leaving exceptionally clean water at the top.

Rapid sand filters or rapid gravity filters are filters usually used in municipal water treatment facilities. This treatment system uses coarse sands that remove the particles that have been trapped in flocks by salts of aluminum or iron. The simplest filter is the cloth filter, but it is also the least effective. This process is done by taking a folded cloth and placing it in a container, then putting it into the unfiltered water. You then lift the cloth out of the container and the water filtered water will fall into the container.

Filtration has several more complex forms that do not employ physical screens in order to filter the impurities out of water. Using ultra violet rays, water can be purified very effectively. Exposing water to the rays will remove any virus and bacteria that would have previously been in the water. Raw water is normally put through this process but drinking water has more recently been filtered in this way. A drinking water disinfection facility has already been approved for construction in New York that will use ultra violet rays. The facility should be able to produce up to two billion gallons of drinking water on a daily basis.

Reverse osmosis is a filtration process that uses applied pressure to force a solution through a membrane that traps the solute and allows the solvent, in this case water, to pass move through to the other side. Most of the separation occurs in the outer layer in the polymer matrix. This filtration process requires a great amount of pressure to be forced on one side of the membrane. The membrane is known as semi permeable, which means is only allows the passage of the solute and not the solvent.

In order to purify the air around us catalytic converters are now being placed on automobiles in order to lower their pollution emissions. The device cleans the gases that are expelled from the vehicle while driving.

Water filters are one of the most important devices man has ever invented. Primitive forms of these filters allowed man to survive in the harshest of climates. There will never be a time that people are not in need of water filters as a means of survival. Further research into this filtration can only prove itself worthwhile and beneficial.

Tags: Health Products

Popularity: 36% [?]

Share This