20 Persons Sewage Treatment Unit | Compact IMO-Compliant Solution
Efficient Sewage Treatment for Small Vessels & Yachts
Our WCMBR-20(U) 20 Persons Sewage Treatment Unit provides complete wastewater processing for vessels with 20-person capacity. This compact system combines biological treatment with MBR membrane technology to deliver effluent quality exceeding IMO MEPC 227(64) standards.
Key Features & Benefits
✔ Complete Treatment System – Buffer tank → biological treatment → MBR filtration → UV disinfection
✔ Compact Footprint – Space-saving design ideal for small vessels
✔ High-Efficiency Treatment – Meets strict effluent standards:
✅ BOD5 ≤25 mg/L
✅ TSS ≤35 mg/L
✅ Coliforms ≤100 MPN/100mL
✔ Automated Operation – Electric control box for easy monitoring
✔ Global Certifications – Available with ABS, BV, DNV, LR, CCS, USCG approvals
Technical Specifications
System Capacity
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Model: WCMBR-20(U)
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Rated Capacity: 20 persons
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Daily Flow: 1,540 liters/day
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Effluent Pressure: 0.10MPa
Effluent Quality
| Parameter | Value |
|---|---|
| BOD5 | ≤25 mg/L |
| TSS | ≤35 mg/L |
| Coliforms | ≤100 MPN/100mL |
| COD | ≤125 mg/L |
| pH | 6-8.5 |
| Residual Chlorine | <0.5 mg/L |
System Components
| Component | Model | Qty | Material |
|---|---|---|---|
| Main Body | – | 1 | Q235-A steel |
| Cutting Pump | 50CPW0.5-10B | 1 | – |
| Air Pump | CYBW-20 | 1 | – |
| Discharge Pump | CLH40-32-2(Z)A | 1 | – |
| Dosing Pump | DL7-5 | 1 | – |
| MBR Membrane | 6040W | 1 | – |
| UV Sterilizer | JX-0.5UV | 1 | – |
| Control Panel | – | 1 | – |
Certifications Available
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ABS – BV – DNV – GL
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LR – RINA – NK – USCG – CCS
The description/sizes may be different with goods, please check with us when order.
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