Project: Advanced Treatment of Swine Farm Wastewater (12,000 pigs)
Capacity: 150 m³/d (Flexible for 100–200 m³/d)
Process: Sand Filtration → O₂-fed Ozone Catalytic Oxidation → Reuse/Discharge
System Specs:
Ozone Output: 3.5 kg/h (Water-cooled, integrated PSA O₂ generator, purity ≥92%)
Concentration: 120 g/m³ | Dosage: 32 mg/L | HRT: 35 min
Mixing: Venturi jet injection (Utilization rate: 83%)
Control: ORP/COD linked frequency conversion for load fluctuation.
Performance (8-month operation):
COD: 215 mg/L → 42 mg/L (Removal 80.5%)
Color: 52x → 7x | Odor: Eliminated by 93.4%
Micro-pollutants: Complete removal of antibiotic residues.
Pathogens: 99.99% inactivation rate, ensuring biosafety.
Advantages:
No chemicals, zero chemical sludge, No chlorinated DBPs.
Water Reuse: Saves 140 m³/d of fresh water for barn flushing/irrigation.
Cost-saving: Low O&M cost; Payback period: 2.1 years.
