Anthracite - 1 CUBIC FOOT

Manufacturer: Aqua Science

Model #: ANT-1.5-100

Material: Anthracite

Size: 1 Cubic Ft

Shipping Weight: 52 lbs

An excellent medium density filtration media which works well in multi-media filter applications. Provides higher service flows and longer filter runs than equivalent sand filters.

Crushed anthracite makes an excellent medium density filtration media. It is specifically selected for water treatment, and during its production goes through several sizing inspections. Random samples are chosen for a complete laboratory quality control analysis for effective size, uniformity coefficient, specific gravity, acid solubility, and hardness.

Because of its fractured shape, some sediment penetrates deeper into the bed. When compared to equivalent filter sands, this means longer filter runs and less head loss. Backwash rates are also reduced.

Anthracite, because of its unique density, can be used in multi-media filters. At 50 lbs./cu.ft, it will hydraulically classify and remain above heavier media such as Filter Sand or Manganese Greensand providing a prefiltration layer.

• Higher service flows and longer filter runs than equivalent sand filters.
• Close attention to gradation, hardness, and purity assures consistent and reliable performance.
• Unique density allows Anthracite to be combined with other filtration media in multi-media filters.

Physical Properties

• Color - Black
• Density - 50 lbs./cu.ft
• Effective Size - #1 (0.6-0.8 mm), #1-1/2 (0.85-0.95 mm), #2 (1.7-2.0 mm)
• Uniformity

Conditions for Operation

• Bed Depth - 24 - 36 in.
• Backwash Rate - #1 (12-18 gpm/ft²), #1-1/2 (18-25 gpm/ft²), #2 (use air scour)
• Backwash Bed Expansion - 30-50% of bed depth
• Service Flow Rate - 5 gpm/sq. ft. or higher depending upon local conditions.

NSF Certified

Frequently Asked Questions

• What is anthracite used for in filtration? Anthracite is used as a medium density filtration media, ideal for multi-media filter applications, providing higher service flows and longer filter runs.
• How does anthracite compare to sand filters? Anthracite offers higher service flows and longer filter runs than equivalent sand filters due to its unique density and fractured shape.
• What are the physical properties of anthracite? Anthracite is black in color, with a density of 50 lbs./cu.ft and effective sizes ranging from 0.6 to 2.0 mm.
• What are the conditions for operating an anthracite filter? The bed depth should be 24-36 inches, with a backwash rate of 12-25 gpm/ft² depending on size, and a service flow rate of 5 gpm/sq. ft. or higher.
• Is anthracite suitable for multi-media filters? Yes, its unique density allows it to be combined with other media like Filter Sand or Manganese Greensand in multi-media filters.
• What maintenance does an anthracite filter require? Regular backwashing is needed, with bed expansion of 30-50% during the process.
• Is this product NSF certified? Yes, this anthracite filtration media is NSF certified.