32 Home Quality - Home Water and Bottled Water Ceramic Filtration Carbon Ion Exchange Water Filters 3-stage water filtration Purified Water Inlet

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Unformatted text preview: Home Water and Bottled Water Ceramic Filtration Carbon Ion Exchange Water Filters 3-stage water filtration Purified Water Inlet Carbon Block Water Filters Activated Carbon Activated Carbon Activation by heating Extremely porous with high surface area: 500 m 2 /g Surface areas as high as 1500 m 2 /g are achievable 3 grams activated carbon Activated Carbon Activated Carbon Filtration Particle size removal > 0.5 microns Bacteria range in size from 0.2-2 microns in width and up to 1-10 microns in length Giardia and Cryptosporidium parasites removed, also Activated Carbon Activated Carbon Absorption: spontaneous movement of primarily organic contaminants from water to carbon matrix. Pesticides, volatile organics Carbon matrix Treatment Residuals Trichloromethane(chloroform) CHCl 3 Dibromochloromethane CHClBr 2 Bromodichloromethane CHCl 2 Br Tribromomethane (bromoform) CHBr 3 Trihalomethanes (organics) All are carcinogens Formed as a byproduct of disinfection with chlorine Effectively removed by carbon block filtration Chlorine Removal 2OCI-+ C → 2Cl- + CO 2 Hypochlorite OCI-2Cl- + CO 2 OCI-Polyester mesh (particulates) Iodine-impregnated beads (bacteria) Activated Carbon (parasites, iodine, organics) 185 gallons of water, Metals Metals are not effectively removed by carbon filtration They can be removed by ion exchange resins and by reverse osmosis processes Ion Exchange Filters Neg. Charge Na Na Na Na Na Na Na Na Pb 2+ , Hg 2+ Neg charge Na Na Na Na Pb 2+ Hg 2+ Na Na Na Na Na Na Na Na Na 4 Na + Finite Capacity Metals Neg. Charge Na Na Na Na Na Na Na Na Water Softeners Water Softeners...
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This note was uploaded on 02/24/2011 for the course SWS 2007 taught by Professor bonczek during the Fall '09 term at University of Florida.

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32 Home Quality - Home Water and Bottled Water Ceramic Filtration Carbon Ion Exchange Water Filters 3-stage water filtration Purified Water Inlet

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