SWT anthracites meet all engineering specifications and/or can be custom specified. Meets or exceeds all ASI, AWWA, or ASME standards and protocols.
Standard packaging is either 2000 lb. supersacks or 1 cubic foot bags. The 1 cubic foot bags are banded, skidded, and shrink wrapped for reliable transport. |
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| PRESSURE DROP — The graph above shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures. |
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| BACKWASH — After each cycle the media bed should be backwashed at a rate that expands the bed 20 to 40 percent. |
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Warning
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. |
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Features: |
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Angular design specific for water treatment |
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Durable |
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Tight screen control for minimum attrition |
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All sizes available |
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International shipping |
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Available in 1 cubic foot bags/palletized or 2,000 lb. supersack |
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| TYPICAL MESH SIZES |
Part Number
Anthracite #1
Anthracite #1.5
Anthracite #2 |
ON10001
ON10015
ON10002 |
US Standard Mesh Size
Anthracite #1
Anthracite #1.5
Anthracite #2 |
14 x 30 (0.6-0.8 mm)
10 x 20 (0.85-0.95 mm)
4 x 12 (1.7-4.0 mm) |
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NON-STANDARD MESH SIZES
without Uniformity Coefficient |
Part Number
Anthracite #3
Anthracite #4
Anthracite #5
Anthracite #6 |
ON10003
ON10004
ON10005
ON10006 |
Size
Anthracite #3
Anthracite #4
Anthracite #5
Anthracite #6 |
5/16" (7.94mm) x 3/16" (4.76mm)
9/16" (14.29mm) x 5/16" (7.94mm)
13/16" (20.64mm) x 9/16" (14.29mm)
1-5/8" (41.28mm) x 13/16" (20.64mm) |
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| PROPERTIES |
| Color |
Black |
| Apparent Specific Gravity |
1.65 ± 0.05 |
| Hardness |
3.0 to 3.8 (Mohs scale) |
| Attrition Losses |
Minimal |
| Source of Material |
Eastern Middle Field Mammoth Vein USA |
Acid Solubility
(Per AWWA B100-80) |
1% maximum |
Caustic Solubility
(1% NaOH @ 190°F) |
1% maximum |
Uniformity Coefficient
(only applies to:
#1, #1.5, and #2) |
1.7 maximum
(unless otherwise specified) |
| Net Weight |
52 lb / cu.ft. |
| Packaging |
1 cu.ft. bag or
2,000 lb. supersack |
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| SUGGESTED OPERATING CONDITIONS |
| Service Flow Rate |
5 gpm/sq.ft. minimum |
Bed Depth
( Multi-bed filter ) |
24 to 36 inches
( 10 to 18 inches ) |
| Freeboard |
50% minimum |
Backwash Rate
Anthracite #1
Anthracite #1.5
Anthracite #2 |
12 to 18 gpm/sq.ft. @ 60ºF
18 to 25 gpm/sq.ft. @ 60ºF
Use air scour |
| Backwash Bed Expansion |
20 to 40% of bed depth |
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AVERAGE ULTIMATE ANALYSIS
(MOISTURE & ASH-FREE BASIS) |
| Hydrogen |
2.1% |
| Carbon |
94.7% |
| Nitrogen |
0.8% |
| Oxygen |
1.6% |
| Sulfur |
0.8% |
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