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LVFENG High-Density Sedimentation DAF System ：Ultra-Compact Clarification for High-Load Wastewater
2025-07-14
Why Choose HD-Sedimentation DAF?
Traditional sedimentation tanks struggle with space, hydraulic peaks, and low-carbon wastewater. LVFENG’s High-Density Sedimentation Dissolved Air Flotation (HD-DAF) unit combines the best of both worlds: flocculation, micro-bubble flotation, and lamella settling in a single footprint. The result is > 90 % TSS removal, 70–85 % COD reduction, and crystal-clear effluent—all in < 1/10th the area of conventional tanks.
Core Advantages in One Frame
| Feature | Benefit |
|---|---|
| High-rate lamella plates | 8–10× faster settling; surface load 15–25 m³/m²·h |
| Inline polymer dosing | 30 % less coagulant, stable floc in 3–5 min |
| Micro-bubble generator | 30–50 µm bubbles capture oils & colloids at 95 % efficiency |
| Self-cleaning scraper | Zero downtime, 1 operator shift per week |
| Plug-and-play skid | 20 m² footprint handles 50–500 m³/d |
Process Flow at a Glance
- Rapid Mix – Raw water + coagulant ± polymer.
- Flotation Zone – Micro-bubbles lift light solids & FOG.
- Lamella Settling – Heavy flocs slide down plates into sludge cone.
- Clean Water Outlet – Ready for reuse or further polishing.
Typical Performance
- Influent: BOD 800–2 000 mg/L, TSS 500–1 200 mg/L, oil 200 mg/L
- Effluent: BOD ≤ 60 mg/L, TSS ≤ 20 mg/L, oil ≤ 10 mg/L
- Sludge: 2–4 % solids; directly dewaterable via LVFENG screw press.
Applications
- Slaughterhouses & poultry plants
- Dairy & beverage factories
- Municipal pre-treatment
- Food-industry wash water
Installation & Support
- Above-ground or buried – choose carbon steel or 304 SS.
- Auto PLC + remote SCADA for 24/7 oversight.
- Start-up within 7 days; full O&M manual & local service team.
Contact LVFENG today for a free sizing quote or pilot trial.
LVFENG Environmental Technology Co., Ltd.
LVFENG Environmental Technology Co., Ltd.