Introduction
Technical Specifications
1. Filtration Efficiency: 15-50 microns (5 micron with optional polishing stage)
2. Flow Capacity: 50-500 m³/h (custom configurations available)
3. Operating Pressure: 2-8 bar (custom high-pressure designs to 12 bar)
4. System Dimensions: 600-3000mm diameter, 1800-3500mm height
5. Filtration Velocity: 15-25 m/h (optimized for maximum throughput)
6. Backwash Consumption: 1.5-2.5% of total flow volume
System Components & Materials
1. Pressure Vessel:
FRP Construction: 8-15mm wall thickness with UV stabilizers
Stainless Steel Options: 316L (1.4404) or duplex (1.4462)
Carbon Steel Alternatives: 6-12mm with triple-layer epoxy coating
2. Filtration Media:
Primary Layer: High-grade silica sand (0.6-1.2mm)
Support Layers: Graded gravel (2-32mm)
Specialty Options: Anthracite, garnet, activated carbon composites
3. Distribution System:
Lateral pipe assemblies with precision-machined nozzles
Nozzle density: 80-120 nozzles/m²
Flow distribution accuracy: ±5% across full bed area
Applications
1. Process Water Treatment:
Cooling tower sidestream filtration
Boiler feedwater pretreatment
Process water polishing
2. Wastewater Management:
Tertiary treatment for reuse
Membrane pretreatment
Clarifier effluent polishing
3. Specialty Applications:
Food & beverage production
Pharmaceutical water systems
Microelectronics ultrapure water
Design Innovations
1. Hydraulic Optimization: Computational Fluid Dynamics (CFD)-designed flow paths
2. Advanced Backwash: Optional air scour (3-5 Nm³/h/m²) for difficult loads
3. Corrosion Protection: Ceramic-lined critical components available
4. Modularity: Stackable designs for space-constrained installations
Quality Assurance Protocols
1. ISO 9001:2015 certified manufacturing
2. ASME BPVC Section VIII, Division 1 compliance
3. PED 2014/68/EU certification
4. Full factory acceptance testing (FAT) on all units
Maintenance Requirements
1. Routine:
Monthly visual inspections
Quarterly valve exercising
Annual media depth verification
2. Periodic:
3-year comprehensive inspection
5-year media replacement
10-year structural integrity assessment
Case Study Highlights
1. Petrochemical Complex:
Installed 8×300 m³/h units
Achieved 10μm filtration
Reduced water consumption by 22%
2. Municipal Plant Upgrade:
16-unit installation
75,000 m³/day capacity
35% lower operating costs
Technical Support Services
Process engineering consultation
CFD flow modeling
Installation supervision
Comprehensive operator training
Conclusion
Our shallow sand filtration technology delivers unmatched performance through precision engineering and robust construction. These systems provide reliable, cost-effective solutions for the most demanding industrial water treatment applications.
