Silica Sand
Silica Sand is a naturally occurring granular filter media, hard, durable, dense grains of minimum 98% siliceous material, and free of dust, clay, and micaceous and organic matter. Sand is washed, dried, and sieved to standard grain sizes that meet or exceed international standards such as AWWA B100 or EN12904 – Type 1. Silica Sand is an inert material, its physical and chemical properties do not change due to environmental conditions; therefore, using Sand as filter medium ensures reliable operation and cost-effective solution. Sand is used in mono media filters or as a second layer of dual or multimedia filters. Due to the abundance of Silica Sand, it is always cost-effective mono media when its interstitial voids are enough to maintain reasonable filter run time.
Applications & Industries
- Desalination pretreatment filters
- Surface water filtration
- Municipal or industrial wastewater tertiary filtration
- Filtration of suspended particulates from groundwater
- Swimming pools filters
Silica Sand can be used in conventional, direct, or mixed-use filters. It is used in all gravity, or pressure filters.
Product Details
To distinguish our products, we add value to Anthracite filter material by achieving the following goals:
- Consistent filtrate quality
- Good solid retention capacity
- Longer filter run time
- Less water volume for backwash
- Good layer separation from other media after re-stratification.
The following parameters are approximate; properties may slightly vary depending on material source.
STANDARD
- European : EN12904 – Type 1
- American : AWWA B100-1
PHYSICAL PROPERTIES
- Specific Gravity : 2.6 – 2.65
- Bulk Density : 1500 – 1600 kg/m3
- Grinding Index : 7 Moh Scale
- Acid Solubility : ≤ 2 % (24hours in 10% HCl)
- Colour : Brown
- Attrition Loss : ≤ 1 % (In 100 hours, backwashing)
CHEMICAL ANALYSIS
- SiO2 : ≥ 98%
- Fe2O3 : 0.05% - 0.10%
- Al2O3 : 0.50% - 1.0%
- Moisture : < 0.5%
- 0.40 – 0.80 mm
- 0.50 - 1.00 mm
- 0.70 - 1.40 mm
- 1.00 - 2.00mm
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