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Topic: Activated carbon

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	Activated Carbon
		Activated carbon is useful in drinking water treatment because it acts as an adsorbent, and can effectively remove particles and organics from water.
		Activated carbon is one of the best tools which can be used to reduce risks to human health and provide an aesthetically pleasing product at reasonable cost.
		The reason that activated carbon is such an effective adsorbent material is due to its large number of cavernous pores.
	www.cee.vt.edu /ewr/environmental/teach/wtprimer/carbon/sketcarb.html (1292 words)

	Activated Carbon
		Activated carbon has a tremendous adsorptive capacity, an affinity for a wide variety of dissolved organics and chlorine and an ability to be custom-tailored to suit specific applications.
		Granular activated carbon is most commonly produced by grinding the raw material, adding a suitable binder to give it hardness, re-compacting and crushing to the correct size.
		The carbon-based material is converted to activated carbon by thermal decomposition in a furnace using a controlled atmosphere and heat.
	www.tigg.com /ACTIVATED-CARBON/activated-carbon.html (614 words)

	News on Activated Carbon and Activated Charcoal \| Carbon Resources
		News on Activated Carbon and Activated Charcoal
		Mr Ken Schaeffer, President of Carbon Resources, was elected to a three year term on the Board of Directors of the PWQA (Pacific Water Quality Association) at the PWQA annual meeting held in the Queen Mary Hotel in Long Beach, CA on October 25, 2006.
		CARBON RESOURCES REACHES OUT TO THE COMMUNITY On Saturday, September 9th, Carbon Resources employees volunteered at an event that was sonspored by one of their customers, Stone Brewing, to help with the local chapter of the Boys & Girls Club of San Marcos, Fight ALD Organization, Surfrider Foundation and the Palomar Family YMCA of Escondido.
	www.carbonresources.com /news.php (3261 words)

	Activated Carbon Information and Products \| Carbon Resources
		The sabre series™ line of activated carbon products consists of a wide range of base adsorbents, each having it’s own unique properties that can enhance adsorption performance in specific applications.
		This is a rayon based activated carbon fiber (ACF) that has extremely high surface area (in some cases greater than 2000 BET).
		Petroleum pitch base beaded activated carbon (BAC) exhibits practically zero ash, extremely low dusting and greater than 1000 m2/g BET surface area.
	www.carbonresources.com /products.html (798 words)

	Cameron Carbon, Inc.
		Today, Cameron Carbon is focused on being a creative leader in the field of molecular filtration and adsorption technology.
		Activated carbon adsorption is a proven technology that offers a viable solution to most pollution, contamination or purification problems.
		Cameron Carbon's years of experience with activated carbon allows us to offer the highest quality products and services, expert technical advice and competitive pricing.
	www.cameroncarbon.com (214 words)

	Chemviron Carbon - Activated Carbon Manufacturer
		Chemviron Carbon is a leading international manufacturer of activated carbons, purification systems and associated services.
		Over 150 different types of activated carbon are available for applications including potable water, wastewater, sweetener, pharmaceutical, air and gas purification.
		These activated carbons can be incorporated into bespoke engineered systems or any of our extensive range of liquid and vapour phase service equipment.
	www.chemvironcarbon.com (208 words)

	Activated Carbon and Activated Charcoal from Brewhaus
		Our activated carbon is sourced only from well known, reputable suppliers with quality control measures in place, and has been extensively tested for use with alcohol.
		Out of several hundred available liquid phase carbon's, only a few are suitable for the filtration of alcohol.
		Some lower cost carbons will separate out solids during filtration due to incomplete acid washing, especially in difficult to wash coconut based carbons, actually resulting in a lower quality product after filtration.
	www.brewhaus.com /Activated_Carbon_s/4.htm (145 words)

	Incubator Housekeeping
		Biological Filtration: The sponge and activated carbon filter elements play host to colonies of beneficial bacteria that, as part of the nitrogen cycle, convert ammonia to less toxic forms (nitrite and nitrate).
		The activated carbon and zeolite clay filter elements should be rinsed in dechlorinated water before being placed into the filter.
		Never replace the activated carbon element and clean the sponge element at the same time.
	www.boquetriver.org /adopthouse.html (910 words)

	Treatment Systems for Household Wate Supplies -- Activated Carbon Filtration
		Activated carbon (AC) filtration is most effective in removing organic contaminants from water.
		The carbon is activated by passing oxidizing gases through the material at extremely high temperatures.
		Organic molecules and activated carbon are similar materials; therefore there is a stronger tendency for most organic chemicals to associate with the activated carbon in the filter rather than staying dissolved in a dissimilar material like water.
	www.ag.ndsu.edu /pubs/h2oqual/watsys/ae1029w.htm (2656 words)

	MARINELAND.COM - DR. TIM'S LIBRARY (Site not responding. Last check: )
		Activated carbon is one of the most misunderstood filtration media available to the hobbyist.
		Activated carbon (or just carbon for this article) can be made from almost any organic based material such as wood, coal, peat, coconut shells, and many others.
		Carbons made from other base materials have their place, but bituminous coal based carbon is by far the most widely used in the liquid filtration field.
	www.marineland.com /articles/16ActivatedCarb.asp (1364 words)

	Activated carbon - Wikipedia, the free encyclopedia
		Tests of adsorption behaviour are usually done with nitrogen gas at 77 K under high vacuum, but in everyday terms activated carbon is perfectly capable of producing the equivalent, by adsorption from its environment, liquid water from steam at 100 °C and a pressure of 1/10,000 of an atmosphere.
		Activated carbon is used in metal extraction, water purification, medicine, sewage treatment, air filters in gas masks and filter masks, filters in compressed air and gas purification, and many other applications.
		Activated carbon has become the treatment of choice for many poisonings, and other decontamination methods such as ipecac induced emesis or stomach pumps are now used rarely.
	en.wikipedia.org /wiki/Activated_carbon (893 words)

	Carbon (Site not responding. Last check: )
		Activated carbon is used primarily for purifying gases by adsorption, solvent recovery, or deodorization and as an antidote to certain poisons.
		The macropores are used as the entrance to the activated carbon, the mesopores for transportation and the micropores for adsorption.
		Carbon tetrachloride activity - measurement of the porosity of an activated carbon by the adsorption of saturated carbon tetrachloride vapor.
	www.tacticalaircleaners.com /carbon.htm (1338 words)

	Revisiting Activated Carbon
		Activated carbon (or just carbon for this article) can be made from almost any organic based material such as wood, coal, peat, coconut shells, and many other things.
		Activating the material, which increases its internal surface area and so to adsorption capacity, it is done through special processes which involve heating the material to nearly 2,000 (F in a controlled environment.
		The final performance of a carbon is based upon the types and number of internal pore sizes, the internal surface area and percent of ash in the carbon.
	www.cichlid-forum.com /articles/marineland_carbon.php (2463 words)

	Activated Carbon from Bamboo - Technology Development towards Commercialisation (Site not responding. Last check: )
		Activated carbon adsorption is an effective means for reducing organic chemicals, chlorine, lead, and unpleasant tastes and odours in effluent or coloured substances from gas or liquid streams.
		Activated carbon has several important uses including solution purification (as in the clean-up of cane, beet and corn-sugar solutions), removal of tastes and odours from domestic and industrial water supplies, vegetable and animal fats and oils, alcoholic beverages, chemicals and pharmaceuticals and in the waste water treatment.
		The carbonization of the raw materials is done normally in the presence of chemical agents such as zinc chloride, magnesium chloride, calcium chloride or phosphoric acid.
	www.tifac.org.in /news/accarbon.htm (2277 words)

	Activated Carbon Custom Environmental Equipment Inc.
		Activated carbon that has been determined through laboratory testing to be spent may often be reactivated in a kiln and reused.
		Activated carbons which have been chemically coated or treated are referred to as impregnated carbons.
		Impregnated activated carbon adsorbs and retains specific gases long enough for the chemical impregnant to react with the contaminant and form a stable or fixed compound within the carbon, thus eliminating the contaminant from the stream.
	www.customenv.com /ActivatedCarbon.html (1154 words)

	Activated Carbon
		Activated carbon is one of the best tools which can be used to reduce risks to human health and provide an aesthetically pleasing product at reasonable cost.
		This page is intended to explain the need for use of activated carbon, what it is and how it is made, its usage in the water industry and to provide some links to other sources of information.
		The reason that activated carbon is such an effective adsorbent material is due to its large number of cavernous pores.
	ewr.cee.vt.edu /environmental/teach/wtprimer/carbon/sketcarb.html (1292 words)

	Glossary: Granular activated carbon
		Activated carbon is positively charged and therefore able to remove negative ions from the water such as ozone, chlorine, fluorides and dissolved organic solutes by absorption onto the activated carbon.
		Activated carbon is often used as a filter in water treatment systems, where water is directed downwards through a stationary bed of activated carbon, leaving organic material to accumulate at the top of the bed.
		Activated carbon is similarly used to lower radon levels in water.
	www.greenfacts.org /glossary/ghi/granular-activated-carbon.htm (178 words)

	Activated carbon - Voyager, the free encyclopedia (Site not responding. Last check: )
		Activated carbon (also called activated charcoal) is the more general term which includes carbon material mostly derived from charcoal.
		Activated carbon may have a surface area in excess of 500 m²/g, with 1000 m²/gram being readily achievable.
		Activated carbon is used to treat poisonings and overdoses by oral ingestion.
	www.voyager.in /Activated_carbon (584 words)

	Activated Carbon for Aquarium Use - Algone.com (Site not responding. Last check: )
		Carbons well suited for aquariums are made of bituminous coal as they consist of many small as well as large pore sizes created by the activation process, allowing both, smaller and larger particles to be adsorbed.
		Soaking the carbon prior to use in the aquarium will cause the phosphates and ash residues to leach out safely, therefore the phosphates will not be introduced to the aquatic system unknowingly.
		Activated carbon removes organic pollutants, some of which discolor the water with a yellowish tint, organic acids, proteins, hormones, antibiotic compounds, and organic compounds as well as a variety of chemicals, medications, metals, and minerals.
	www.algone.com /activated_carbon.php (917 words)

	Activated Carbon Filtration
		Activated carbon air filters are made up of a vast matrix of molecular-sized pores.
		Activated carbon is a charcoal treated with oxygen.
		Activation opens millions of microscopic pores in the carbonized shells, enabling them to hold onto chemical molecules like benzene.
	www.dpm-aire.com /Aire/DPMAire/Carbon.cfm (349 words)

	Activated Carbon
		The activation of carbon and its manufacture produces many pores within the particles, and it is the vast areas of the walls within these pores that accounts for most of the total surface area of the carbon.
		The forces of attraction between the carbon and the adsorbed molecules are greater the closer the molecules are in size to the pores.
		Activated carbon, when contacted with water containing organic material, will remove these compounds selectively by a combination of adsorption of the less polar molecules, filtration of the larger particles, and partial deposition of colloidal material on the exterior surface of the activated carbon.
	www.thekrib.com /Chemistry/carbon.html (2291 words)

	activated carbon air filter information
		Activated carbon air filters are the most effective type of filter against chemicals, gases, cigarette smoke and other odors.
		Activated carbon air filters trap odors and chemicals in highly absorbent granules (or pores), which look like a hard scrub brush.
		Activated carbon is a charcoal that is treated with oxygen in order to open up millions of tiny pores between the carbon atoms, resulting in a highly adsorbent material.
	www.surroundair.com /carbon-air-filter.htm (120 words)

	greenscreen Activated Carbon Filter
		The shells are heated to over 2,000°C under high pressure, which causes fissures on the surface of the carbon, creating a high quality, small pore activated carbon.
		Activated carbon absorbs gases and particles by a combination of London Force and small electrostatic forces that creates a type of capillary action.
		In layman’s terms, activated carbon acts much like a sponge absorbing water, except that the carbon absorbs the materials at a micro level.
	www.mfiap.com /gs/carbon.htm (533 words)

	Pellets & Granular Activated Carbon
		Additionally the carbon you want needs to be of the type that has been treated for the required period of time and in the proper manner taking into consideration what its ultimate purpose will be (in our case treating aquarium water, laden with organics).
		Carbon that has not been treated for very long and in no particular manner germane to its ultimate purpose is, obviously, going to be far less expensive than activated carbons that have been treated the way they should have been to achieve the results that you want to obtain in terms of water quality improvement.
		Rinse the activated carbon until the effluent water is clear and free of such dust.
	www.fishdomain.com /article_carbon.shtml (991 words)

	Air Purifiers - Activated Carbon Technology
		The presence of activated carbon in room air purifiers may be a mystery to you, unless you're a aquarium hobbyist, or own a water purification system which uses carbon.
		The heat used in making carbon "activated" drives out impurities so there are places for impurities from your air to reside when it is used in an air purifier.
		Activated carbon is described in a variety of ways, and there are a variety of types, but generally it includes a wide range of amorphous carbon-based materials which exhibit a high degree of porosity and an extended surface area.
	www.airpurifiers.com /technology/activatedcarbon.htm (791 words)

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