Product Description
Granular activated carbon is designed for reduction of tastes, odors and dissolved organic chemicals from municipal and industrial water supplies. Manufactured in the United States from select grades of bituminous coal to produce a high density, durable granular product capable of withstanding the abrasion and dynamics associated with repeated hydraulic transport, backwashing and mechanical handling. Activation is carefully controlled to produce exceptionally high internal surface area with optimum pore size for the adsorption of a broad range of high and low molecular weight organic contaminants.
One of the most common applications for Coconut Carbon / High Activity Carbon (HAC) is the reduction of the undesirable tastes and odors present in many chlorinated water supplies. Carbon Media has been successful for many years in the reduction of free chlorine from water supplies. The end product is clean, fresh water with no objectionable taste or odor characteristics.
Coconut shell carbon as it's name implies, is made primarily form coconut shells. Because coconut carbon is comprised of predominantly microporous structures, is a superior performing product for the removal of chlorine, chlorinated solvents and VOCs. It is also harder and can stand up to more backwashing than bituminous coal based carbon.
Physical Properties
• NSF Certified: Tested and listed under ANSI/NSF Standard 61 for Health Effects
• Color: Black
• Mesh Size: 12 x 40
• Bulk Density: 31 lbs./cu. ft.
• Specific Gravity: 1.4-1.5 gm/cc
• Effective Size: 0.55-0.75 mm, 0.65 typical
• Water Soluble Ash: less than 0.5%
• Iodine #: 850 min., 900 typical
• Abrasion #: 75 min., 81 typical
• Moisture as packed: 2% max., 0.7% typical
• Meets American Water Works Association standard B604-96
Conditions for Operation
• Water to be filtered should preferably be free of oil and suspended matter
• The water to be filtered should be relatively free of iron and turbidity for maximum service life
• Water pH range: wide range
• Bed depth: 26-30 in.
• Freeboard: 50% of bed depth (min.)
• Service flow rate: 5 gpm/sq. ft.
• Backwash flow rate: 10-12 gpm/sq.ft.
• Backwash bed expansion: 30-40% of bed depth
• Upon installation, backwash to remove carbon fines before placing unit into service
