Filtration Media ProActive™ 12 x 40
Acid Washed Carbon
ProActive™ 12 x 40 Acid Washed Granular Activated Carbon (P/N IT50005) is made from a superior quality anthracite and non-viscous coal with naturally low ash, low sulphur and phosphorous content. It is manufactured through high temperature steam activation under stringent quality control. It has a large surface area, high pore volume, high mechanical hardness and chemical stability, longer operating life, and it is easy to regenerate.
Dechlorinating Water
Reducing Organic Impurities
Pretreatment for RO and Ion Exchange Systems
IT50005 Pressure Drop Graph
PRESSURE DROP — The graph above shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures.
IT50005 Backwash Expansion Graph
BACKWASH — The carbon bed should be backwashed at least once per week with chlorinated water to expand the bed 15 to 20 percent. This helps keep the carbon bed sterile and removes any foreign matter and carbon fines.
SWT's ProActive Acid Washed 12 x 40 Granular Activated Carbon (IT50005) can be expected to remove a minimum of one pound of chlorine per pound of carbon. A 24 inch deep bed of IT50005 will reduce 1 ppm of inlet chlorine to below the limit of detection.
IT50005 Chlorine Removal Graph
The graph above shows throughput capacity for chlorine removal using 2 gpm/cu.ft. of deionized water at 77ºF with 0.1 ppm chlorine leakage endpoint.
Chlorine removal efficiency is affected by:
Increasing temperature increases removal
Increasing pH reduces removal (above pH 8.0 consult SWT for recommendations)
Increasing TOC usually improves removal
High flow rate reduces removal
Removal of organics by activated carbon is variable and is site specific. In general, large organic molecules are removed more completely than smaller molecules. The probable mechanism of removal is adsorption into the carbon pores. Organics with fewer than 6 carbon atoms are not well removed. Aromatic organic molecules are generally removed better than aliphatic molecules . Organic ions are generally not well removed. Polar molecules are not removed as well as non-polar molecules.
IT50005 can be regenerated with steam to remove organics and/or chlorine that has been adsorbed. Contact your representative for additional information.
  High adsorption capacity and efficiency  
  Super durability that stands up well to backwash  
  Low fines, no floats, rinses fast  
  Low pH  
  Acid washed in the USA  
Part Number IT50005
Carbon Type Coal
US Standard Mesh Size
  — Larger than 12
  — Smaller than 40
12 x 40
  5% maximum
  5% maximum
Mean Particle Size 0.9 to 1.1 mm
Uniform Coefficient 1.9 maximum
Abrasion Number 75 minimum
Wet Density (as used) 38 lbs/cu.ft.
Dry Density (as shipped) 28 lbs/cu.ft.
Moisture 5% maximum
Ash 14% maximum
Iodine Number 950 mg/g minimum
Packaging 1 cu.ft. plastic lined,
corrugated box
(28 lbs per cu.ft.)
Acid Soluble Ash Less than 0.5%
Total Ash (typical) 8 to 9%
pH (as shipped) 5 to 8
Acid Soluble Metallic Impurities
(as mg/kg of moist carbon)
  — Aluminum
  — Copper
  Less than 2000
  Less than 100
Moisture (as shipped) 30 to 40% typical
Maximum Temperature 250ºF
Minimum Bed Depth
  — Chlorine Removal
  — Organics Removal
  24 inch
  36 inch minimum
Support Bed 12 inch graded gravel
or coarse sand
Backwash Expansion 15 to 25%
Flow Rate
  — Chlorine Removal
  — Organics Removal
  1.0 to 2.0 gpm/cu.ft.
  0.5 to 1.0 gpm/cu.ft.
View SWT Filtration Media Guide
For safety and handling purposes, we recommend appropriate protective measures when entering a wet vessel containing granular activated carbon, because wet activated carbon depletes oxygen from air and therefore, dangerously low levels of oxygen may be encountered. In such a case, the oxygen level inside the vessel shall be determined before entering and appropriate protective equipment should be worn when entering, or leave the vessel open until the oxygen level in the vessel is normal.
This information has been gathered from standard materials and or test data that is believed to be accurate and reliable. Nothing herein shall be determined to be a warranty or representation expressed or implied with respect to the use of such information or the use of the goods described for any particular purpose alone or in combination with other goods or processes, or that their use does not conflict with existing patent rights. No license is granted to practice any patented invention. It is solely for your consideration, investigation and verification.
ProActive™ is a trademark of Safe Water Technologies, Inc.
Safe Water Technologies, Inc.
996 Bluff City Boulevard
Elgin, IL 60120 USA
Telephone: +1.847.888.6900
Facsimile: +1.847.888.6924

Last Updated: June 13, 2018