The following parameters are approximate, properties may slightly vary depending on natural material properties and whether regular or low-density Anthracite is chosen.

STANDARD

• European : EN12909 - 2005
• American : AWWA B100-1

PHYSICAL PROPERTIES

• Specific Gravity : 1.40 - 1.60
• Bulk Density : 720 - 890 kg/m3
• Grinding Index : 45 – 50 Hardgrove
• Acid Solubility : ≤ 2 % (24hours in 10% HCl)
• Colour : Black
• Attrition Loss : ≤ 1 % (In 100 hours, backwashing)

CHEMICAL ANALYSIS

• Carbon Content : 90% - 92%
• Ash Content : 4% - 7%
• Volatile Matter : 4% - 8%

• GRADE A 0.60 - 1.18 mm
• GRADE B 0.80 - 1.60 mm
• GRADE C 1.00 - 2.00 mm
• GRADE D 1.18 - 2.50 mm
• GRADE E 1.40 - 2.50 mm

The following media curves shall be provided together with quotation:

• Typical Particle Distribution Curve
• Clean Bed Head Loss
• Minimum Fluidization Velocity
• Head Loss during Backwash
• Bed Expansion Curves

Note:

A. Unless application-specific water properties are provided, all media curves are provided assuming the below water properties:

• Feed water temperature 20 °C
• Feed water source seawater or surface water as the application may be
• Feed water TDS 35 g/l (sea water) / 500 mg/l (surface water)
• Anthracite Density 1.40 g/dm3
• Anthracite Bulk Density 780 kg/m3 or 870 kg/m3 as the SG may be

B. This Technical Datasheet is generic and standard one. Once it is decided in accordance with specifications or buyer choice, final technical datasheet will be fin tuned to feed water type and Anthracite density.