Introduction
Advanced Biofilm Carrier for Enhanced Nitrogen/Phosphorus Removal and Recalcitrant Pollutant Degradation
This innovative biofilm carrier is specifically engineered to address three critical wastewater treatment challenges: efficient nitrogen removal, enhanced phosphorus elimination, and degradation of persistent organic pollutants. The technology combines two breakthrough mechanisms
Hydrogel Sustained-Release System
Maintains optimal moisture and nutrient levels for microbial communities
- Gradually releases iron ions to ensure long-term catalytic activity (5-7 years)
- Protects functional microorganisms from harsh environmental fluctuations
- Active Iron Ion Catalysis Technology
- Iron ions interact with endogenous H₂O₂ (produced during microbial metabolism) to trigger Fenton-like reactions, generating hydroxyl radicals (·OH) that:
- Oxidize refractory COD (85-92% removal efficiency)
- Degrade antibiotics (e.g., sulfonamides, 80-90% removal)
- Break down micro-pollutants (pharmaceuticals, pesticides)
- Simultaneously functions as an electron mediator to:
- Accelerate denitrification by 40-60% compared to conventional carriers
- Promote chemical phosphorus fixation through iron-phosphate precipitation
Key Features & Technological Advantages
1. Superior Contaminant Removal
COD removal efficiency: 85-95%
Ammonia nitrogen removal: 90-98%
Heavy metal adsorption capacity: 15-30mg/g (Pb²⁺, Cd²⁺, Cu²⁺)
2. Exceptional Durability
pH resistance: 2-12 (withstands extreme industrial wastewater)
Operational lifespan: 5+ years (3X longer than conventional plastic media)
Compressive strength: ≥3.5MPa (resists mechanical wear)
Technical Parameters
| Parameter | Value |
| Material | Polyurethane porous gel |
| Specific Surface Area | ≥10,000 m²/m³ |
| Porosity | 98% |
| Dosing Rate | 10–30% of tank volume |
| Hanging Time | 3–7 days |
| pH Range | 6–10 |
| Temperature Range | 1–50°C |
| Expansion Ratio | 190 ± 18% (1:2.2 post-swelling) |
Municipal sewage (e.g., Riyadh, Jeddah plants).
Industrial wastewater (oil refineries, textile dyeing).
Rural drainage & river remediation.
Case Example: A Saudi textile plant achieved 95% COD removal by replacing conventional carriers with PCG.
Target Applications
Industrial Wastewater Treatment
Pharmaceutical wastewater (antibiotics, hormones)
Chemical plant effluent (nitro-compounds, dyes)
Landfill leachate (high ammonia, refractory COD)
Electroplating wastewater (complex heavy metals)
Municipal & Specialized Treatment
Sewage plant upgrades (Class IV to Class I-A standards)
Aquaculture recirculation systems
Hospital wastewater disinfection
River/lake eutrophication control
FAQ
Q1: How does PCG compare to traditional plastic bio carriers?
PCG offers a larger surface area, better oxygen transfer, and faster biofilm growth due to its hydrophilic properties.
Q2: What is the expected lifespan of PCG?
Under normal conditions, PCG lasts over 10 years without significant wear.
Q3: Can PCG be used in anaerobic systems?
Yes, it is adaptable to both aerobic and anaerobic environments.
Q4: How much PCG media is needed per m³ of reactor?
The filling ratio typically ranges from 30% to 70%, depending on the system design.
Q5: Is PCG suitable for high-salinity wastewater?
Yes, it performs well in saline conditions, making it ideal for industries like seafood processing.
Conclusion
PCG Biological Media Carrier is a cutting-edge solution for modern wastewater treatment, combining Japanese-inspired design with advanced polymer technology. Its high efficiency, durability, and cost-effectiveness make it an ideal choice for projects in Saudi Arabia, the Philippines, Indonesia, Malaysia, and beyond. For sustainable and high-performance biofilm treatment, PCG leads the industry.
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