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Carbon Block
Active Carbon (A Miracle Filter Media) Chart of Contaminants
Granular activated carbon is a highly adsorbent material used to remove contamination from water. Activated carbon has been known as a miracle filter media by many researchers because of its unique ability to remove offensive tastes, odors, color, chlorine and volatile organic chemicals, pesticides and trihalomethanes (a group of suspected carcinogens). Briefly, activated carbon acts like a sponge, with a large surface area to absorb contaminants in the water. The surface area of one pound of activated carbon is equal to 125 acres. Many scientists believe this is a result of an affinity that these chemicals have for carbon because of Van Der Waal forces. Activated carbon is the preferred treatment and method recommended by the EPA to remove a host of potentially hazardous and possibly carcinogenic chemicals in drinking water. A partial list of chemicals that are reduced or removed by activated carbon are:
The chart shows partial contaminants regulated for public water systems by the Safe Drinking Water Act, and the maximum contaminant levels (MCL), source, health effects and treatment options for each. |
Organic |
MCL |
Source/Industrial occurrence |
Health effect |
Treatment |
||||||||
Chlorobenzene |
0.1 |
Used as a solvent for paint and metal manufacturing. Also used in insecticides. |
Affects nervous system, kidneys and liver. |
Activated carbon |
||||||||
CIS-1,2 Dichloroethylene |
0.07 |
Used as an industrial solvent in the manufacturing of dyes, perfumes and lacquers |
Affects liver, and a nervous and circulatory systems. Probable cause of cancer. |
Activated carbon |
||||||||
Dibromochloropropane |
0.0002 |
Soil fumigant on soybeans, and cotton. Canceled in 1997. |
Cancer |
Activated carbon |
||||||||
Dioxin |
0.00000003 |
Chemical production by-product; impurity in herbicides. |
Affects lungs, liver and kidney. Probable cause of cancer. |
Activated carbon |
||||||||
Epichlorohydrin |
0 |
Used in epoxy resins and coating, and in flocculants. |
Affects nervous system, kidney and liver. |
Activated carbon |
||||||||
Ethlbenzene |
0.7 |
Used in the manufacture of gasoline, insecticides and asphalt |
Probable cause of cancer |
Activated carbon |
||||||||
Ethylene Dibromide |
0.00005 |
Used as a gasoline additive and soil fumigant. |
Affects nervous system, kidneys and liver. |
Activated carbon |
||||||||
Monochlorobenzene |
0.01 |
Used in manufacture of pesticides and as a metal cleaner and industrial solvent. |
Cancer |
Activated carbon |
||||||||
PAHs |
0.0002 |
Coal tar coating, burnings organic matter, volcanoes, fossil fuels. |
Cancer |
Activated carbon |
||||||||
Phthalate (di(2-ethylhexyl)) |
0.006 |
PVC and other plastics. |
Affects skin and liver. Causes nausea. Probable cause of cancer. |
Activated carbon |
||||||||
Polychlorinated Biophenyts (PCBs) |
0.0005 |
Used in electrical transformers. |
Affect nervous system, kidneys and liver. |
Activated carbon |
||||||||
Styrene |
0.01 |
Used in manufacturing plastic, resins and foams. |
Affects nervous system. Probable cause of cancer and anesthesia |
Activated carbon |
||||||||
Tetrachloroethylene |
0.005 |
Used in dry cleaning and as a degreasing agent for metals. Also used for manufacturing rubber, waxes, paints and inks. |
Affects nervous system, liver and kidneys. Causes narcosis. Irritant to respiratory system. |
Activated carbon |
||||||||
Toluene |
1 |
Used in gasoline, paint thinners, lacquers and adhesives. |
Cancer |
Activated carbon, ozonation |
||||||||
|
0.01 |
Formed when water containing organic matter is treated with chlorine. |
ffects nervous system and muscles. Probable cause of cancer. |
Activated carbon, aeration, ultra filtration (20-90%), RO (20-90%) |
||||||||
1,1 Dichloroethylene |
0.007 |
Used in manufacturing dyes, plastic, perfumes, paints and adhesives |
Affects kidneys and liver and can cause nausea. |
Activated carbon |
||||||||
1,1,2-Trichloroethane |
0.005 |
Solvent in rubber products, chemical production waste. |
Kidney, liver, nervous system damage |
Activated carbon, aeration |
||||||||
1,1,1-Trichloroethane |
0.02 |
Used in manufacturing of pesticides, plastic and metals. |
Affects nervous system. Causes narcosis and probably cancer. |
Activated carbon |
||||||||
1,2 Dichlorobenzene |
0.6 |
Used in the manufacturing of fumigants, insecticides, waxes, resins, rubber and asphalt |
Affects lungs, liver and kidneys. |
Activated carbon |
||||||||
1,2 Dichloroethane |
0.005 |
Used in the manufacturing of gasoline, paint, varnish, metal degreasers and insecticide fumigants |
Damage kidney and liver can cause nausea |
Activated carbon |
||||||||
1,2 Dichloropropane |
0.005 |
Used in insecticide fumigants, dry cleaning fluids and in manufacturing of resins, waxes and petroleum products |
Affects lungs, liver and kidneys. |
Activated carbon |
||||||||
1,2,4-Trichlorobenzene |
0.07 |
Herbicide production; dye carrier. |
Liver, kidney damage |
Activated carbon, aeration |
||||||||
1,4 Dichlorobenzene |
0.075 |
Used in moth repellent, germicides, pesticides and soil fumigants. |
Affects nervous system, liver and kidneys. Probable cause of cancer. |
Activated carbon |
||||||||
Acrytamide |
0 |
Flocculants used in sewage and wastewater treatment. |
Affect nervous system, probable cause of cancer. |
Activated carbon |
||||||||
Adipates |
0.4 |
Synthetic rubber, food packaging, cosmetics. |
Decreased body weight; liver and testes damage. |
Activated carbon, aeration |
||||||||
Benzene |
0.005 |
Used in fuels and as a solvent in manufacturing pharmaceuticals, plastics, pesticides and paints. Often traced to leaking underground storage tanks. |
Leukemia, anemia and possibly cancer |
Activated carbon |
||||||||
Trans-1,2 Dichloroethylene |
0.1 |
Used as an industrial solvent in the manufacturing of dyes, perfumes, lacquers and rubber. |
Affects liver, and nervous and circulatory systems |
Activated carbon, ozonation with UV irradiation |
||||||||
Trichloroethylene |
0.1 |
Used in dry cleaning and as a degreasing agent. Also used for manufacturing rubber, paints, adhesives, resins, oils and fumigants. |
Irritates body tissue. Affects nervous system. Probable cause of cancer. |
Activated carbon |
||||||||
Vinyl Chloride |
0.005 |
Used as a plastic adhesive and refrigerant. The main component of PVC pipe |
Affects nervous system. Probable cause of cancer. |
Activated carbon |
||||||||
Xyienes |
0.002 |
Used in manufacturing paint, ink, petroleum and detergents. |
Affects nervous system, kidneys, lungs, liver and mucous membranes. |
Activated carbon |
What is the Multi Stage Redox filter?
Stage 1, water flows through pre and post one - micron filter pads (1 micron equals 1/25,000th of an inch), which removes suspended particles such as silt, sediment, cyst (Giardia, Cryptosporidium), sand, rust, dirt, and other un-dissolved matter.
Stages 2 and 3, water flows through a bed of media made of a special high-purity alloy blend of two dissimilar metals - copper and zinc (Eagle Redox Alloy® 6500, and Eagle Redox Alloy® 9500.) KDF/ *Eagle Redox Alloy® is a major advancement in water treatment technology that works on the electro-chemical and spontaneous-oxidation-reduction (REDOX) principles. Chlorine is instantaneously and almost inexhaustibly oxidized. Tests on Eagle Redox Alloy®/*GAC cartridge have shown 99+% chlorine removal past 20,000 gallons of water.
In comparison, carbon cartridges of comparable volumes drop below 90% effectiveness after only 4,000 gallons. Iron and hydrogen sulfide are oxidized into insoluble matter and attach to the surface of the media. Heavy metals such as lead, mercury, copper, nickel, chromium, cadmium, aluminum, and other dissolved metals are removed from the water by the electrochemical process. They are attracted to the surface of the media, much like a magnet. The media inhibits bacterial growth throughout the entire unit. In fact, it has been shown to be reduced up to 90%, eliminating the need for silver, which is commonly used in carbon-only filters (silver is considered a pesticide by the EPA and, as such, must be registered with them). Is copper or zinc added to the water in any significant amount? On 2.3 ppm chlorinated water,
Stage 4, water flows through ion exchange resins, reducing heavy metals such as lead, copper, aluminum, and water hardness.
Stage 5, water flows through granulated activated carbon (GAC). GAC is universally recognized and widely used as an effective adsorbent for a wide variety of organic contaminants, such as chlorine (99.9%), chemicals linked to cancer (THM's, benzene) pesticides, herbicides, insecticides, volatile organic compounds (VOC's), PCB's, MTBE's and hundreds of other chemical contaminants that may be present in water causing bad taste and odors in your drinking water. Carbon is extremely porous and provides a large surface area for contaminants to collect. Carbon-only filters must also use their capacity for chlorine removal, resulting in a shortened life. They also may use a bituminous coal carbon, which is good at removing chlorine, but not as effective at removing chemicals. We use a high-grade coconut shell carbon that is most effective at removing chemicals. Coconut shell carbon provides a significantly higher volume of micro-pores than either coal, wood or lignite based carbon. As a result, it is more effective than other carbon types in removing trihalomethanes (THM's) and other chemicals from municipally supplied water. Since our REDOX media removes the chlorine before it reaches the carbon, the carbon capacity is not wasted on chlorine and is free to concentrate more effectively on organic contaminants.
Stage 6, water flows through another one-micron filtration pad for further reduction of undesirable particles. The end result is a great reduction or total elimination of a wide variety of contaminants.
Pre-Filter Option, Washable for high sediment water.
5 micron Carbon Block Filter
featuring the addition of coconut carbon
2 7/8" x 9 3/4" for Countertop or UnderSink
4 5/8" x 10" or 4 5/8" x 20" for Whole House System
Technical Details
- 5 Micron Nominal Filtration
- FDA listed materials
- High chlorine reduction
- Solid block design eliminates channeling, by-pass or release of carbon fines
Product Description
Carbon Block water filter cartridge manufactured with high purity Coconut Shell activated carbon, provides an exceptional cost-to-performance value. With high chlorine reduction, great dirt-holding capacity, and greatly reduces carbon fines, ideal for point-of-use (POU) undercounter water filter systems and Reverse Osmosis applications. These cartridges can be used in a wide range of applications such as residential, food service, commercial, and industrial. 6,000 gal. chlorine taste and odor reduction.
CQ Carbon Block simultaneously removes chlorine, bad taste and odor, and organic chemicals that contribute to taste and odor, while providing the particulate filtration and dirt-holding capacity of an efficient 5µm nominal sediment filter. The extrusion process allows the production of a carbon block with more carbon, but a lower pressure drop.
CQ Carbon Block filters deliver extended life, while removing sediment, chlorine, bad taste and odor, and organic contaminants from water, aqueous solutions or suspensions. Carbon Block is also widely used in filtering organic solvents.
Activated carbon has been known as a miracle filter media by many researchers because of its unique ability to remove offensive tastes, odors, color, chlorine and volatile organic chemicals, pesticides and trihalomethanes (a group of suspected carcinogens). Briefly, activated carbon acts like a sponge, with a large surface area to absorb contaminants in the water. The surface area of one pound of activated carbon is equal to 125 acres. Many scientists believe this is a result of an affinity that these chemicals have for carbon because of Van Der Waal forces. Activated carbon is the preferred treatment and method recommended by the EPA to remove a host of potentially hazardous and possibly carcinogenic chemicals in drinking water. A partial list of chemicals that are reduced or removed by activated carbon are:
The chart shows partial contaminants regulated for public water systems by the Safe Drinking Water Act, and the maximum contaminant levels (MCL), source, health effects and treatment options for each. |
Organic |
MCL |
Source/Industrial occurrence |
Health effect |
Treatment |
||||||||
Chlorobenzene |
0.1 |
Used as a solvent for paint and metal manufacturing. Also used in insecticides. |
Affects nervous system, kidneys and liver. |
Activated carbon |
||||||||
CIS-1,2 Dichloroethylene |
0.07 |
Used as an industrial solvent in the manufacturing of dyes, perfumes and lacquers |
Affects liver, and a nervous and circulatory systems. Probable cause of cancer. |
Activated carbon |
||||||||
Dibromochloropropane |
0.0002 |
Soil fumigant on soybeans, and cotton. Canceled in 1997. |
Cancer |
Activated carbon |
||||||||
Dioxin |
0.00000003 |
Chemical production by-product; impurity in herbicides. |
Affects lungs, liver and kidney. Probable cause of cancer. |
Activated carbon |
||||||||
Epichlorohydrin |
0 |
Used in epoxy resins and coating, and in flocculants. |
Affects nervous system, kidney and liver. |
Activated carbon |
||||||||
Ethlbenzene |
0.7 |
Used in the manufacture of gasoline, insecticides and asphalt |
Probable cause of cancer |
Activated carbon |
||||||||
Ethylene Dibromide |
0.00005 |
Used as a gasoline additive and soil fumigant. |
Affects nervous system, kidneys and liver. |
Activated carbon |
||||||||
Monochlorobenzene |
0.01 |
Used in manufacture of pesticides and as a metal cleaner and industrial solvent. |
Cancer |
Activated carbon |
||||||||
PAHs |
0.0002 |
Coal tar coating, burnings organic matter, volcanoes, fossil fuels. |
Cancer |
Activated carbon |
||||||||
Phthalate (di(2-ethylhexyl)) |
0.006 |
PVC and other plastics. |
Affects skin and liver. Causes nausea. Probable cause of cancer. |
Activated carbon |
||||||||
Polychlorinated Biophenyts (PCBs) |
0.0005 |
Used in electrical transformers. |
Affect nervous system, kidneys and liver. |
Activated carbon |
||||||||
Styrene |
0.01 |
Used in manufacturing plastic, resins and foams. |
Affects nervous system. Probable cause of cancer and anesthesia |
Activated carbon |
||||||||
Tetrachloroethylene |
0.005 |
Used in dry cleaning and as a degreasing agent for metals. Also used for manufacturing rubber, waxes, paints and inks. |
Affects nervous system, liver and kidneys. Causes narcosis. Irritant to respiratory system. |
Activated carbon |
||||||||
Toluene |
1 |
Used in gasoline, paint thinners, lacquers and adhesives. |
Cancer |
Activated carbon, ozonation |
||||||||
|
0.01 |
Formed when water containing organic matter is treated with chlorine. |
ffects nervous system and muscles. Probable cause of cancer. |
Activated carbon, aeration, ultra filtration (20-90%), RO (20-90%) |
||||||||
1,1 Dichloroethylene |
0.007 |
Used in manufacturing dyes, plastic, perfumes, paints and adhesives |
Affects kidneys and liver and can cause nausea. |
Activated carbon |
||||||||
1,1,2-Trichloroethane |
0.005 |
Solvent in rubber products, chemical production waste. |
Kidney, liver, nervous system damage |
Activated carbon, aeration |
||||||||
1,1,1-Trichloroethane |
0.02 |
Used in manufacturing of pesticides, plastic and metals. |
Affects nervous system. Causes narcosis and probably cancer. |
Activated carbon |
||||||||
1,2 Dichlorobenzene |
0.6 |
Used in the manufacturing of fumigants, insecticides, waxes, resins, rubber and asphalt |
Affects lungs, liver and kidneys. |
Activated carbon |
||||||||
1,2 Dichloroethane |
0.005 |
Used in the manufacturing of gasoline, paint, varnish, metal degreasers and insecticide fumigants |
Damage kidney and liver can cause nausea |
Activated carbon |
||||||||
1,2 Dichloropropane |
0.005 |
Used in insecticide fumigants, dry cleaning fluids and in manufacturing of resins, waxes and petroleum products |
Affects lungs, liver and kidneys. |
Activated carbon |
||||||||
1,2,4-Trichlorobenzene |
0.07 |
Herbicide production; dye carrier. |
Liver, kidney damage |
Activated carbon, aeration |
||||||||
1,4 Dichlorobenzene |
0.075 |
Used in moth repellent, germicides, pesticides and soil fumigants. |
Affects nervous system, liver and kidneys. Probable cause of cancer. |
Activated carbon |
||||||||
Acrytamide |
0 |
Flocculants used in sewage and wastewater treatment. |
Affect nervous system, probable cause of cancer. |
Activated carbon |
||||||||
Adipates |
0.4 |
Synthetic rubber, food packaging, cosmetics. |
Decreased body weight; liver and testes damage. |
Activated carbon, aeration |
||||||||
Benzene |
0.005 |
Used in fuels and as a solvent in manufacturing pharmaceuticals, plastics, pesticides and paints. Often traced to leaking underground storage tanks. |
Leukemia, anemia and possibly cancer |
Activated carbon |
||||||||
Trans-1,2 Dichloroethylene |
0.1 |
Used as an industrial solvent in the manufacturing of dyes, perfumes, lacquers and rubber. |
Affects liver, and nervous and circulatory systems |
Activated carbon, ozonation with UV irradiation |
||||||||
Trichloroethylene |
0.1 |
Used in dry cleaning and as a degreasing agent. Also used for manufacturing rubber, paints, adhesives, resins, oils and fumigants. |
Irritates body tissue. Affects nervous system. Probable cause of cancer. |
Activated carbon |
||||||||
Vinyl Chloride |
0.005 |
Used as a plastic adhesive and refrigerant. The main component of PVC pipe |
Affects nervous system. Probable cause of cancer. |
Activated carbon |
||||||||
Xyienes |
0.002 |
Used in manufacturing paint, ink, petroleum and detergents. |
Affects nervous system, kidneys, lungs, liver and mucous membranes. |
Activated carbon |
|
The contaminants or other substances removed or reduced by this unit are not necessarily in your water. |
Source: Water Technology, Directory Issue / 1995