Manganese Dioxide Coating for Rapid Sand Filters
Short Product Description
Manganese Dioxide Coating for Rapid Sand Filters is a high-activity MnO₂ surface-modified filtration media designed for oxidation and removal of iron and manganese in pressurized water treatment systems. MnO₂ content typically ranges from 60–85%, providing strong catalytic performance in municipal and industrial rapid sand filters. Suitable for potable water plants and groundwater treatment facilities.
Technical Specifications
| Parameter | Typical Value | Test Method |
|---|---|---|
| MnO₂ Content | 60–85% | Chemical titration |
| Particle Size | 0.5–1.2 mm / 1–2 mm | Sieve analysis |
| Bulk Density | 1.3–1.6 g/cm³ | ASTM D854 |
| Specific Gravity | ≥3.5 g/cm³ | ASTM C127 |
| Crushing Strength | ≥95% intact | Hydraulic test |
| Uniformity Coefficient | ≤1.6 | Sieve analysis |
| Operating pH Range | 6.5–8.5 | Field condition |
| Filtration Velocity | 8–15 m/h | System dependent |
Key Features
High catalytic activity for rapid oxidation of Fe²⁺ and Mn²⁺
Durable Manganese Dioxide Coating for Rapid Sand Filters ensures long service life
Suitable for pressure and gravity filtration systems
Stable performance under continuous backwashing cycles
Low media loss and high mechanical strength
Compatible with chlorine, air, or KMnO₄ regeneration
Applications
Municipal water treatment plants – effective iron and manganese removal in rapid sand systems
Groundwater treatment – improves clarity and reduces dissolved metals
Industrial process water – protects downstream RO and membrane systems
Drinking water facilities – ensures compliance with Fe/Mn discharge limits
Retrofitting existing rapid sand filters – upgrade performance with MnO₂ catalytic layer
Packaging & Supply
25 kg woven bags
1 MT jumbo bags
Palletized for export shipment
Suitable for containerized sea freight
Customization & Technical Support
Particle size distribution and MnO₂ loading can be adjusted based on raw water quality and filter design. Technical support includes media selection guidance, loading depth recommendations, and backwash parameter optimization for rapid sand filtration systems. Laboratory testing and pilot evaluation support available upon request.
Check out our full Manganese dioxide water treatment solutions in here