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	Methods of Water Purification
		Water treatment can be defined as any procedure or method used to alter the chemical composition or natural "behavior" of a water supply.
		Municipal waters may be pH adjusted to a pH of approximately 7.5 to 8.0 to prevent corrosion of water pipes, particularly to prevent dissolution of lead into the water supply.
		In the case of excessive alkalinity, the pH may be reduced by the addition of CO After the water is delivered from the utility or the well, there are many on-site options for further treatment to meet specific end-use requirements.
	www.waterforliving.com /files/Methods_of_Water_Purification.htm (2177 words)

	Water purification - Wikipedia, the free encyclopedia
		Water purification is the removal of contaminants from raw water to produce drinking water that is pure enough for human consumption or for industrial use.
		Water distribution systems disinfected with chloramines may experience nitrification, wherein ammonia is used a nitrogen source for bacterial growth, with nitrates being generated as a byproduct.
		Water with high concentrations of hardness salts can be treated with soda ash (sodium carbonate) which precipitates out the excess salts, through the common ion effect, as calcium carbonate of very high purity.
	en.wikipedia.org /wiki/Water_purification (4162 words)

	Water Purification
		Water is the most essential part of every aquarium since it is the media that our fishes and plants live in and totally rely upon for their feeding and survival.
		As the fluid (often water) passes over and through the carbon, the attractive forces between the compounds that are the most attracted to the carbon are adsorbed onto the surface.
		It should be noted that most water companies add an increased amount of chlorine gas during the summer months to compensate for losses due to the higher water temperature, the faster metabolism and multiplication of the microorganisms, and the lower solubility of the gas in the water.
	www.malawicichlidhomepage.com /aquainfo/water_purification.html (5945 words)

	Water Purification
		Water can play a major role in the transmission of enteric infections, and virtually all of the agents that cause travellers' diarrhea may be present in contaminated water.
		Chemical disinfection of water depends on the killing of bacteria, Giardia and amoeba cysts, and viruses by the chemical.
		Boiling water requires heat, which may be from a kerosene stove or dried yak dung, but is often in the form of a wood fire.
	www.high-altitude-medicine.com /water.html (1472 words)

	Water Purification Products - water ionizers, filters, distillers
		The process of water purification is the transformation of water from a non-drinkable state to a drinkable state.
		There are water filters that are designed to filter out various contaminants, from calcium to metals and a wide variety of substances that can be added to your water to counteract the pollutants in the water.
		Water distillers are neither intended to treat water that is visually contaminated nor intended to convert waste water to safe, microbiologically potable water.
	www.waterionizersplus.com (799 words)

	Water Purification: Purification Technologies
		The water vapor rises to a condenser where cooling water lowers the temperature so the vapor is condensed, collected and stored.
		This regeneration reverses the purification process, replacing the contaminants bound to the DI resins with hydrogen and hydroxyl ions.
		In water purification systems, hydraulic pressure is applied to the concentrated solution to counteract the osmotic pressure.
	www.h2ro.com /_Solutio2.htm (1982 words)

	Water Filter, Water Purifier, Water Filtration System, Water Purification, Purify Water
		The purified water produced is usually collected in a holding tank with its own separate faucet for drawing the water as needed.
		It is the most thorough water purification method, but there can be a problem of crossover of volatile chemicals, such as chlorine gas from chlorinated source water, into the distilled water collected.
		For more thorough water purification, a KDF and carbon cartridge can be followed with a solid carbon block and/or ceramic filter cartridge which screen out particulate matter, including bacteria and parasites, down to less than 1/2 micron.
	waterus.com (1929 words)

	Water and Water Purification ( 6 pgs. 6 illus.) - Art of Travel - European and World Backpacking
		First, the bottle is filled with several ounces of water, then after a few minutes (time dependent on water temperature--a small thermometer is attached) this bottle is poured into a quart of water to be purified.
		water disinfectant tablets are expensive at about $20 for a packet of forty tablets, which purifies forty liters.
		If the water is particularly dirty or silt-laden, let it settle in a pot before filtering, and/or use a coffee filter or cloth as a pre-filter.
	www.artoftravel.com /10water.htm (1799 words)

	water purification
		As the water passes through and the micropores are filled, fewer and fewer pores remain vacant.
		Boiling the water destroys bacteria and other living organisms, leaving them behind in the boiling tank, along with particulates, dissolved solids, and radioactive particles that are too heavy to rise with the water vapor.
		Most people who make distilled water run their distillers and then store the water in pitchers or 5 gallon glass water bottles (such as the kind water used to be delivered in).
	www.worldwise.com /watpur.html (1658 words)

	Global Healing Center
		Water consumption can have an effect on the risk of urinary stone disease, cancers of the breast, colon and urinary tract, childhood and adolescent obesity, mitral valve prolapse, salivary gland function, and overall health in the elderly (Kleiner 1999).
		It stands to reason that water and the many roles it plays generally and specifically for all parts of the body will enhance may biochemical and physiological functions important to overall health when it is available to cells and tissues.
		Water availability is important to cells, and to the fluid surrounding the cells called interstitial fluids (fluids that surround joints, muscles, and organs) and to the matrix of the blood.
	www.ghchealth.com /water-purification (2128 words)

	Science NetLinks: Ecosystem Services - Water Purification
		The role of plants, roots, and microbes in water purification can be difficult for children to picture in their minds, as well as challenging to simulate in the classroom.
		In New York City, the replacement cost for the water purification services once provided "free" by its now-contaminated watershed was estimated at $6 to $8 billion to build a filtration plant (plus $300 million per year to operate it).
		Water purification technology is costly, and in the case of drinking water, the more polluted the water, the more money is needed for disinfectants, such as chlorination, and the higher the energy, equipment, and labor costs.
	www.sciencenetlinks.com /lessons.cfm?DocID=275 (3508 words)

	Water treatment - Wikipedia, the free encyclopedia
		Water purification is the removal of contaminants from untreated water to produce drinking water that is pure enough for human consumption.
		As the universal solvent, the moment that purified water is exposed to the environment it interacts, even with carbon dioxide in the air.
		Water purification therefore is a process describing the treatments employed to meet the objectives of the user.
	en.wikipedia.org /wiki/Water_treatment (383 words)

	OA Guide to Water Purification
		The effectiveness of all chemical treatment of water is related to the temperature, pH level, and clarity of the water.
		Splash some of the water with the chemical onto the lid and the threads of the water bottle so that all water areas are treated.
		Filters do not filter out viruses, but there are water purifiers, like the PUR Scout, that pass the water through both a filter and an iodine compound that kills any smaller organisms that have passed through the filter.
	www.princeton.edu /~oa/manual/water.shtml (1771 words)

	Water purification
		This is where a water test is needed and often ignored, guaranteeing a wrong filter installation right off the bat.
		Whether you’re looking for a simple effective counter top water filter or an elaborate whole house set up, my services will be the same: a thorough analyses of your situation and a recommendation.
		With California and Texas implementing tough measures against traditional water softeners and in many cases banning their installation, many other states are considering the same tough measures.
	www.jrwresources.bizland.com (845 words)

	Millennium Ark: Water Purification
		Water is the most important element in staying alive.
		If portable water purifiers are a new product to you, Byron Kirkwood of BA Products has written an informative article about the basics.
		In a pinch, highly chlorinated water can be trickled through the ashes from a fire that are suspended in a cloth or coffee filter or even a cut-off pants leg tied at the bottom, that will prevent ash from passing through while allowing the water to pass.
	www.millennium-ark.net /News_Files/LTAH_Water_Pure2.html (2894 words)

	Aqua Sun portable water purifiers. Solar energy, 12 volt, water purification systems.
		Our systems provide clean, safe drinking water to remote areas where water purification is unattainable or impractical.
		The PWP-C is a totally portable water purification system that uses 12 volt and solar for power.
		These systems can purify up to 1000 gals/day of drinking water and can be powered by variety of electrical sources such as generators, solar energy, or conventional power sources.
	www.aqua-sun-intl.com (452 words)

	Drinking Water Filters- Reverse Osmosis Water Purifier Purification
		Affiliates Log In "I've been using the APEC RO-45 water filter and couldn't be happier.
		water right at home for drinking, cooking, ice and coffee making, baby-formula, pet feeding, beauty washing, dietary/medical uses, and precious plants watering.
		with reverse osmosis ultra-clean, ultra-safe water —up to 99% free of unwanted substances commonly found in tap and well water.
	www.freedrinkingwater.com (183 words)

	Water Purification/Survival, Fatigues Army Navy Surplus Gear
		Water purification should be high on your survival list.
		You should have a supply of water carriers, water bottles, porta aqua water tablets, gi water purification tablets just to name a few.
		Your survival, with a good water supply can make the differance in the end.
	www.fatiguesarmynavy.com /store/subcat/180 (54 words)

	Water Purification
		See for yourself how our water ionizers compare with all other methods of water purification.
		Clean water is a luxury in today’s world, and this water is purified, alkalinized, oxygenated and vitalized as well.
		Alkaline water is produced at home with a small kitchen appliance called a water ionizer (long in use in Japan and Korea).
	www.waterionizer.org /site/898596/page/808526 (812 words)

	Water Purification from Backcountry.com
		Katadyn Micropur MP1 Tablets are the future of water treatment, and the only system of its kind EPA registered as a microbiological water purifier.
		The MSR MIOX Purifier is the easiest and most reliable device available for purifying large volumes of water.
		The MIOX is virtually effortless to operate, and requires a capful of table salt, squirt of water, and a click of a button to purify up to 4 liters of water at one time.
	www.backcountry.com /store/group/232/Water-Purification (145 words)

	Water Purification - Products for Water Purification - Manufacturers,Exporters,Suppliers,Traders,Companies,Factories (Site not responding. Last check: 2007-11-05)
		This is one of the few water distillers that come with a glass re
		The md-1004 is a fully integrated water purification system for r
		This is a high output water purification system recommended both
	www.alibaba.com /productsearch/Water_Purification.html (599 words)

	APS Water Services - Water Purification - Water Softener - Iron Filter - Housings
		We specialize in the purification of water used in critical scientific applications such as cell culture media production, oxygen removal in cooling loops, pharmaceutical manufacturing, space exploration projects and other high purity applications.
		Labconco and Waterpro are trademarks of Labconco inc. Continental, IWT, US Filter, Modulab and Culligan and other water related trademarks are trademarks of their respective owners.
		ULTRA brand water purification products are designed to be replacement filters and membranes for Millipore, Barnstead, and US Filter water purification systems.
	www.apswater.com (574 words)

	ewater.com
		All water, air & energy appliance purchases are protected by a six month money back guaranty, in addition to any long term warranties, excluding shipping and handling.
		on water, air, and energy as they relate to health.
		These products are not intended to diagnose, treat, cure, or prevent any disease.
	www.ewater.com (95 words)

	Labconco: WaterPro Softeners, PS Polishing Stations, and RO Stations - Water Purification Systems
		WaterPro Water Purification Systems provide point-of-use pure water for the laboratory.
		Below is a listing of water purification systems, companion products and accessories products available from Labconco.
		If you are still unsure which water purification system is best for your application, use the Advanced Product Search to help you narrow down your choices.
	www.labconco.com /_Scripts/Editc20.asp?CatID=8 (316 words)

	Millipore - Bioscience - Water Purification
		Purified water is an essential resource in all laboratory environments.
		From university research and clinical labs to biopharmaceutical research and pharmaceutical laboratories, Millipore water systems can provide a few liters a day to up to several thousand liters per day of ultrapure water (Type I), analytical-grade water (Type II), or laboratory-grade water (Type III).
		Millipore systems are used in a diverse range of applications, from simple glassware rinsing to complex
	www.millipore.com /markets/bioscience.nsf/docs/water (145 words)

	Water Purification
		Dow keeps water safe for consumption and recreation by constantly improving water purification and treatment systems.
		Dow products help prevent bacteria from growing in water supplies, while our membrane technologies and ion exchange systems remove bacteria and even salt from water supplies.
		Dow also helps companies effectively and economically recycle their process water – conserving this precious resource for future generations.
	www.dow.com /publicreport/2003/intro/water.htm (113 words)

	Home Water Filters, Ultra Violet (UV) Water Treatment, Reverse Osmosis Filtration System, Water Purifiers, Distillers & ...
		TheWaterSite foundation was built on the most quality water filters, and the belief that our visitors will find the best water purifiers for their water purification needs.
		Steam distillation plus carbon filtration provides you with clean, pure drinking water and sparkling ice cubes...while enhancing the natural flavor of juices, soups, coffee, tea and other beverages.
		We are pleased to announce that we now carry a full line of top branded water distillers, water softeners and water treatment equipment,
	thewatersite.com (188 words)

	SpectraPure Inc., Water Purification Products
		proudly presents the finest water purification equipment available.
		As the technology leader, we set the standard and constantly push it to new heights.
		Years of research and experience are reflected in the engineering of SpectraPure® Water Purification Systems.
	www.spectrapure.com (197 words)

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