Continuous upflow filtration
Solids are retained within the moving single-grade sand bed.
FILTRATION
Continuous filtration.
Continuous media washing.
Upflow deep-bed filtration with an airlift and integral sand washer for water, wastewater polishing and reuse.
9–84 m³/hPublished capacity per vessel
1.5–7 m²Listed filter areas
Airlift circulationCompressed-air-driven media lift
Parallel banksScalable hydraulic capacity
TECHNOLOGY & CONFIGURATION
Continuous sand filters
Water rises through a descending sand bed. The airlift transfers dirty sand to the washer; cleaned media returns to the bed while washwater carries away the separated solids.
Integrated media cleaning
Compressed air lifts sand to the washer without a submerged mechanical drive.
WORKING PRINCIPLE
Filter continuously.
Wash the media as it moves.
- Water enters the lower bed. The inlet distributor spreads feed through the sand.
- Water flows upward. Suspended particles are retained as filtrate rises to the outlet.
- Sand moves downward. The central airlift carries dirty sand to the washer at the top.
- Clean sand returns. Separated solids leave with the washwater while cleaned media returns to the bed.
Illustrative cutaway. Blue arrows indicate water or airlift movement; brown arrows show the sand movement and waste stream.
PRELIMINARY SELECTION
Define the duty.
Select the configuration.
Published ranges support initial selection. Final equipment, dimensions, materials and performance commitments follow the confirmed project requirements.
| Model | Filter area | Capacity, m³/h |
|---|---|---|
| CSF-15 | 1.5 m² | 9–18 |
| CSF-30 | 3 m² | 18–36 |
| CSF-40 | 4 m² | 24–48 |
| CSF-50 | 5 m² | 30–60 |
| CSF-60 | 6 m² | 36–72 |
| CSF-70 | 7 m² | 42–84 |
Ranges are indicative and are not universal performance guarantees. Additional sizes and arrangements are available on request. See the product datasheet for the detailed selection basis.
PROCESS & SUPPLY BOUNDARY
Coordinate every stage.
01Influent distribution
02Upflow through sand
03Filtrate collection
04Dirty-media airlift
05Sand washing & return
Typical package scope
- Vessel, cone and support legs
- Water distributor and filtrate collector
- Central airlift and integral washer
- Media-return arrangement and main connections
Project options
- Filter media and initial charge
- Duty/standby air package
- Coagulant and polymer dosing
- Common headers, controls and reject recovery
Supply inclusions and options are confirmed in the agreed quotation. Installation, commissioning and operation are available in Jordan, Iraq and the UAE; installation supervision and commissioning are available in other countries.
REQUEST A QUOTE
Start with the
project requirements.
- Design flow profile
- TSS, turbidity, particles and chemistry
- Required filtrate quality
- Hydraulic profile, air utilities and footprint
COMMON QUESTIONS
Before you specify.
Is a shutdown backwash cycle required?
The filter washes media continuously while filtering. It does not need a separate high-rate backwash pump or dedicated backwash sequencing; normal isolation valves remain.
Is the sand charge included?
The datasheet lists filter media and initial charge among the extra options. It should be explicitly included in the agreed offer where required.