The Continuous Sand Filter is an upflow, deep bed, granular media filter used with continuous backwash in the removal of suspended and colloidal solids. The filter media is cleaned during the filtration operation by a simple internal washing system that does not require backwash pumps or storage tanks. This ensure uninterrupted operation without stopping for backwash and the absence of backwash pumps bring the low energy consumption.
We provide professional Continuous Sand Filter that easy to operate and economical sand filter for continuous cleaning of sand to achieve efficient effluent cleaning compared to conventional filter.
Benefits
- No shutdown for backwash cycles.
- Elimination of ancillary backwash equipment
- No flow control valves, splitter boxes, or backwash controls
- No short-circuiting.
- Optimum sand-washing efficiency
- Superior filtrate quality
- Reduced operator attention
- Low pressure-drop
- Reduces potential for pluggage
- Significantly reduces wear/maintenance
- Simple maintained without filter shutdown
- Up to 70% less compressed air vs. other self-cleaning filters
Applications
- Tertiary filtration
- Algae removal
- Portable water(turbidity and color)
- Oil removal
- Process water-Brine filtration
- Metal finishing
- Cooling tower blowdown
- Steel mill scale
- Chemical processing
- Product recovery
- Surface water
- Ground water
| Typical Data | Loading rate(gpm/ft2) | Influent solids | Filtrate solids |
| Tertiary Filtration | 3-5 | 20-50 ppm SS | 5-10 ppm SS |
| Potable Water – Turbidity | 4-5 | 10-30 NTU | 0.1-0.5 NTU |
| Potable Water – Color | 4-5 | 10–120 ACU | 1-5 ACU |
| Process Water | 5 | 10-30 NTU | 0.1-0.5 NTU |
| Metal Finishing | 4-6 | 20-50 ppm SS | 2-5 ppm SS |
| Steel Mill Scale | 8-10 | 50-300 ppm SS | 5-10 ppm SS |
| Phosphorus Removal | 3-5 | <1 ppm Total P | <0.1 ppm Total P |
| Algae Removal | 2-4 | 100 ppm SS | 10-20 ppm SS |
| Denitrification | 3-4 | 10-15 ppm TN | <3 ppm TN |
| Oil Removal | 2-6 | <50 ppm O&G | 5-10 ppm O&G |