| Quantity: | |
|---|---|
10-20 20-40 mesh
SEPPE ABRASIVE
25132000
High-density, chemically inert garnet filter media for multi‑media water filtration systems. Removes suspended solids and reduces turbidity in drinking water, wastewater, and industrial process water.
▸ High-density garnet is a natural alluvial filter material used in multi‑media water filtration systems. It is often placed as the bottom support layer beneath anthracite and sand, providing superior performance even after repeated backwashing.
▸ Its high specific gravity (4.0‑4.2) allows it to stay in place during backwash, while its angular grain shape traps fine particles throughout the entire bed, resulting in longer filter runs, higher filtration rates, and lower turbidity.
▸ Garnet contains no organic matter or soluble acid compounds, making it chemically inert and safe for drinking water treatment, petroleum processing, and industrial water filtration.
▸ Multi‑media pressure filters for municipal drinking water plants
▸ Industrial process water and cooling tower side‑stream filtration
▸ Wastewater tertiary treatment and water reuse systems
▸ Pre‑filtration for reverse osmosis and desalination plants
▸ Standard effective sizes: 10/16, 16/30, 20/40 mesh
▸ Garnet has a large density ratio, zero organic content, and excellent acid resistance, making it highly competitive with silica sand, ilmenite, and magnetite in cost, durability, and filtration effectiveness.
▸ With high wear resistance and moderate porosity, garnet can filter out impurities as small as 10 µm. When combined with other filter media such as anthracite and sand, it significantly improves overall system performance.
▸ Sharp angular grains create high void volume, increasing dirt‑holding capacity and reducing pressure drop. Its stable properties and low price make it widely used in the petroleum and water treatment industries.
▸ Raw alluvial garnet → Washing & Desliming → Gravity Separation → Drying → Magnetic Separation → Precision Screening → Final Inspection & Packaging
▸ The attrition scrubbing process removes all clay and low‑density impurities, guaranteeing clean, angular grains with tight particle size distribution for consistent filter bed performance.
▸ Particle size distribution analysis per AWWA B100 to ensure accurate effective size and uniformity coefficient.
▸ Specific gravity and bulk density testing on each batch for proper filter bed stratification.
▸ Acid solubility test and heavy metal analysis to guarantee chemical stability and drinking water safety.
▸ Turbidity and backwash expansion testing to simulate real filtration cycles and verify long‑term performance.
| Chemical Composition | |
| Al₂O₃ | 17-25% |
| SiO₂ | 34-40% |
| FeO+Fe₂O₃ | 28-31% |
| MgO | 5-8% |
| MnO | 0-1% |
| TiO₂ | 0-1% |
| CaO | 1-2% |
| Physical Properties | |
| Bulk Density | 2.1-2.4 g/cm³ |
| Specific Gravity | 4.0-4.2 g/cm³ |
| Hardness | 7.5-8.0 Mohs |
| Common Sizes | 4/8, 8/12, 10/16, 16/30, 20/40 mesh |
| Property | SEPPE Garnet | Silica Sand / Anthracite |
|---|---|---|
| Specific Gravity | 4.0-4.2 | 2.6 (sand) / 1.5 (anthracite) |
| Filter Bed Stability | Excellent – stays at bottom | Prone to intermixing |
| Chemical Inertness | High – acid‑resistant | Moderate / Low |
| Filtration Precision | Down to 10 µm | Typically 20‑30 µm |
| Service Life | 5‑8 years | 3‑5 years (sand) |
▸ 25 kg polypropylene woven bags and 25 kg paper bags available
▸ 1 MT jumbo bags for bulk water treatment plant supply
▸ OEM private label and custom packaging supported
▸ Reliable container shipment to all major ports worldwide
▸ Yes. It is chemically inert, meets NSF/ANSI 61 requirements, and is widely used in municipal water plants.
▸ With proper backwashing, it typically lasts 5‑8 years before media top‑up is needed.
▸ Common effective sizes are 0.3‑0.6 mm (fine polishing) and 0.6‑1.2 mm (standard dual‑media filters). Consult our team for custom sizing.
▸ No. Garnet is insoluble and does not release harmful substances, making it ideal for sensitive applications.
▸ Absolutely. Free samples, TDS, and sieve analysis reports are available upon request.
Contact SEPPE for product specifications, OEM packaging, bulk pricing, and technical support.
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