Details and Specification of Quartz use in Water Filteration

According to BIS specification (IS: 8419 - 1977), quartz grains are used to filter water. The grain size curve must match the particle diameter by 10%. The formula for the uniformity coefficient ratio is D60/D10, where D60 is the particle diameter that corresponds to a grain size that is 60% finer and D10 is the particle diameter that corresponds to a grain size that is 10% finer.

Our Quartz (Silica) Specifications

• High SiO2 content ranging from 99.5% to 99.9%, making it ideal for water filtration.
• Available in three sizes: 03-06mm, 0.6-1.2mm, and 1.2-2.5mm (Mesh Size from 8-16, 16-32, and 26-40)
• Fe content as low as 0.04%
• Natural silica sand for water filtration is also available in sizes ranging from 0.6 to 2.5mm and up.

Quartz Specifications for use in the Water Filtration Industry

• FILTER SAND: For synthetic wastewater, rounded grains are preferred over angular ones. It must be made of hard and durable silica sand granules and have a specific gravity of at least 2.5. The minimum SiO2 content must be 95% or above, and impurities such as clay, silt, and so on may not exceed 2% by volume.
• FILTER GRANULES: A firm, preferably rounded stone with an average specific gravity of no less than 2.5 must make up the entire structure. It must be free of organic contaminants, clay, sand, and loam. It must have a mass percentage of thin, flat, or elongated pieces that are no higher than 2%, chosen by hand. For gravel sizes larger than 10 mm, the acid solubility should not be more than 10%, and for particles lower than 10 mm, it should be less than 5%. Gravel shouldn't contain an excessive amount of shale or limestone.

Specification of Quartz Granules

• Sio2 above 98%
• Fe2O3: Should be around 0.04% or below
• Other trace elements: should be below 1.0%
• No trace elements or contamination like clay, sand, etc.