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Purification Activator
Diatomaceous earth (DE) is made up of the fossilized remains of diatoms which were small, single-celled, hard-shelled algae that existed prehistorically. These fossils make DE a high-porosity substance, because the fossilized remains are actually exceptionally-small, hollow particles. DE started as deposits which covered the bottoms of the oceans and eventually became part of our soil. It is a soft, chalk-like substance that crumbles easily into a fine white powder. Much like pumice, DE feels quite abrasive. Although DE can be used as a mild abrasive, cat litter, a mechanical insecticide, a blood-clotting activator, a component in dynamite, and as a thermal insulator, its most common use is in diatomaceous earth filters used in swimming pools and water treatment facilities.
DE filters can be used to filter out very fine particles that would easily clog or pass through a paper filter. DE filters are most often used to filter water in swimming pools, but they can also be used in the treatment of drinking water and to filter other liquids such as beer, wine, syrups, and sugar. The technology started during WWII when the United States Army was in need of a portable drinking water treatment system. Since the material was lightweight, odorless, tasteless, and chemically-inert, that meant that it was safe for use with drinking water. After the war, people started building water treatment facilities using diatomaceous earth filters. There are still over 200 of these plants operating today, mostly in small municipalities.
DE filters are an excellent choice for small operations, because they don't require chemical coagulation or the training of operators in the use of chemicals. In addition, they provide a filtering option that is much less expensive than other water treatment methods. DE filters are a superior choice for filtering well water under the influence of surface water because of their cyst-removal capabilities. The properties of diatomaceous earth filters have caused them to become one of the drinking water filtration methods approved for use by the Environmental Protection Agency (EPA).
Diatomaceous earth filters physically separate the suspended solids from liquids which other filtration products would allow to pass through. In a water supply, DE filters can successfully remove cysts, bacteria, algae, viruses, asbestos, turbidity, manganese, and iron. They cannot, however, remove color and other dissolved constituents. The EPA has established guidelines for the maximum concentration and types of particulates which can be in water to be filtered by DE filters. DE filters are available either as pressure filters or vacuum filters.
Looking for a diatomaceous earth filter system? Visit SeparmaticSystems.com for all your water purification needs including diatomaceous earth filters and portable emergency water purification systems
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Purification of c-phycocyanin from Spirulina fusiformis and its effect on the induction of urokinase-type plasminogen activator from calf pulmonary endothelial ... Journal of Phytotherapy & Phytopharmacology
$9.95 This digital document is an article from Phytomedicine: International Journal of Phytotherapy & Phytopharmacology, published by Thomson Gale on September 1, 2006. The length of the article is 3177 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view... |