SILICA SAND
QUARTZ SAND
The Silica sand is a naturally occurring granular material composed predominantly of silicon dioxide (SiO2) in the form of quartz. It is one of the most abundant minerals in the Earth's crust and is highly valued for its chemical purity, hardness, durability, and resistance to high temperatures. Depending on its source and processing, silica sand can achieve very high levels of purity, making it suitable for a wide range of industrial applications.
Applications
- Drinking water treatment: Primarily a filtration step after coagulation and sedimentation.
- Industrial process water: For use in manufacturing, cooling towers, and boilers.
- Swimming pool filtration: Standard media for commercial and residential sand filters.
- Wastewater treatment: Tertiary treatment stage to polish treated wastewater before it is discharged into the environment or used.
- Septic system: Final treatment step before effluent leaches into the soil.
- Pre-filtration for the membrane system: Pre-treatment step before reverse osmosis (RO) or ultrafiltration (UF) membranes.
Physical and Chemical Characteristics
Silicon dioxide
Iron oxide
Aluminum oxide
Specific gravity
Hardness
Effective size
Whiteness
Melting point
: 95-99.9% SiO2
: 0.085% Fe2O3
: 0.3% Al2O3
: 2.65 g/cm³
: 7 Mohs
: 0.05~2.0 mm
: 88~97%
: 1,710 °C
