Automatic Multimedia Sand and Gravel Water Filter for Irrigation Systems - China Suppliers & Factory Solutions
How it works
Composition of filter material
- Support the upper filter material to prevent the loss of filter material.
- Distribute water evenly to avoid bias.
- Filter large suspended particles.
- Filter suspended matter, sediment, colloids and other medium particle impurities in water.
- Protect the upper fine filter material and extend its service life.
- Filter smaller suspended matter and some organic matter.
- Due to its light density, the upper layer improves filtration efficiency.
- Adsorption of residual chlorine, organic matter, odor, chroma and so on.
- Improve the taste and smell of water.
Strengths
Application Scenarios
Design essentials
Multi-media filter vs activated carbon filter
| Features | Multi-media filter | Activated carbon filter |
|---|---|---|
| Key features | Removal of suspended solids, silt, colloids, etc. | Adsorption of residual chlorine, organic matter, odor, etc. |
| Filter material composition | Gravel, quartz sand, anthracite, etc. | Activated charcoal |
| Application scenarios | Pretreatment, industrial water treatment, municipal water supply | Drinking water treatment, odor removal |
| Maintenance methods | Backwash and replace the filter material regularly | Back rinse and replace the activated carbon regularly |
Sum up
It utilizes multiple layers of filter materials arranged by density and particle size. Larger impurities are trapped in the top layers (like anthracite), while smaller particles are captured in the deeper layers (like quartz sand), ensuring thorough and distributed filtration.
A standard setup includes a gravel layer at the bottom for support and water distribution, a quartz sand layer in the middle for medium-sized particles, and an anthracite (smokeless coal) layer at the top for finer particles. An optional activated carbon layer can be added at the very top.
Multi-media filters physically intercept suspended solids, silt, and colloids. In contrast, activated carbon filters primarily use chemical adsorption to remove chlorine, organic compounds, odors, and taste-altering substances.
The system supports backwashing, which reverses the water flow to flush out trapped particles and loosen the filter media. The filter media itself should also be replaced periodically to maintain optimal filtration efficiency.
The standard filtration flow rate is typically controlled between 8 to 12 meters per hour (m/h). Exceeding this range can push impurities through the filter media, reducing the overall treatment quality.