— 3 Core Mechanisms + Real Project Data (with Charts)
HNS Watertech | Yixing, China – Leading MBBR Media Manufacturer (K1 / K3 / K5 Series) 👉 Follow us for a FREE technical whitepaper & sample request
Introduction: Why Are Traditional Processes So Expensive?
Conventional activated sludge systems (A²/O, SBR) suffer from 3 major cost drivers:
- Large footprint → High civil construction cost
- High energy use → Aeration + recirculation = 60% of OPEX
- High sludge yield → Disposal fees rising 10%+ annually
MBBR (Moving Bed Biofilm Reactor) technology, powered by high-performance media, delivers smaller volume, higher efficiency, and lower total cost.
3 Ways MBBR Media Reduces Costs (Data-Backed Charts)
1️⃣ 5–10x Higher Volumetric Loading → 70% Smaller Reactor Volume
| Process | Volumetric Load (kg COD/m³·d) | Reactor Volume (m³/ton COD) | Civil Cost |
|---|---|---|---|
| Conventional Sludge | 0.5–1.0 | 1.0–2.0 | 100% |
| MBBR | 5–10 | 0.1–0.3 | ↓70% |
Real Case: Food factory, 500 m³/day
- A²/O: 800 m³ tank
- MBBR Retrofit: 200 m³ → Saved ¥1,200,000 in construction

Grok can make mistakes. Always check original sources.
2️⃣ 30% Higher Aeration Efficiency → ¥0.3–0.5/ton Power Savings
MBBR media density ≈ water (0.97 g/cm³) → tiny bubbles drive full fluidization. Oxygen Transfer Efficiency (OTE) reaches 28–35% (vs. 18–22% in traditional systems).
| Item | Conventional | MBBR | Savings |
|---|---|---|---|
| Air Volume (m³ air/m³ water) | 25–30 | 15–18 | ↓40% |
| Power Cost (¥/ton water) | 0.8–1.2 | 0.4–0.6 | ↓50% |
Case: Dyeing plant, 1 million tons/year Annual power savings: ¥600,000

3️⃣ 60% Less Sludge → ¥200,000+/year Disposal Savings
Long sludge age (>20 days) in MBBR biofilm → sludge yield drops to 0.05–0.1 kgSS/kgCOD (vs. 0.4–0.6).
| Process | Sludge Yield (kgSS/kgCOD) | Annual Sludge (tons) | Disposal (¥/ton) | Annual Cost |
|---|---|---|---|---|
| Conventional | 0.5 | 180 | 800 | ¥144,000 |
| MBBR | 0.08 | 29 | 800 | ¥23,200 |
Savings: ¥120,800/year

Total Cost Comparison (5-Year, 1,000 m³/d Plant)
| Item | Conventional | MBBR | Savings |
|---|---|---|---|
| Civil Works | ¥3,500,000 | ¥1,200,000 | ¥2,300,000 |
| Power (5 yrs) | ¥2,190,000 | ¥1,095,000 | ¥1,095,000 |
| Sludge (5 yrs) | ¥720,000 | ¥116,000 | ¥604,000 |
| Total | ¥6,410,000 | ¥2,411,000 | ¥4,000,000+ |
Payback Period: < 2 Years
Why Choose HNS Watertech MBBR Media?
- Full K1/K3/K5 lineup, surface area 500–1,200 m²/m³
- 25+ year lifespan, no clogging, no breakage
- Free design support + biofilm startup guidance
- 300+ successful projects, stable effluent compliance
🎯 Call to Action
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