40-Person Compact Marine Sewage Treatment Plant – IMO-Compliant & Efficient
Efficient Black Water Treatment for Small to Mid-Size Vessels
Our simplified marine sewage treatment plant is designed for 40-person capacity (max 44 persons), providing compact, reliable, and IMO-compliant wastewater treatment for ships, yachts, and offshore platforms. This marine black water treatment system effectively processes human waste (sewage) while meeting IMO MEPC 227(64) & MEPC 284(71) standards, ensuring eco-friendly discharge at sea.
Key Features & Benefits
✔ Compact & Space-Saving – Ideal for small vessels, fishing boats, and offshore installations
✔ Advanced Treatment Process – Combines activated sludge, contact oxidation, and biological membrane filtration
✔ UV Sterilization – Chemical-free disinfection, eliminating harmful bacteria & coliforms
✔ Durable Construction – Mild steel tank with epoxy tar coating for corrosion resistance
✔ Low Maintenance & Easy Operation – Fully automated electric control system
✔ Certified Compliance – IACS-approved with optional CCS, ABS, BV, DNV, LR, NK, KR, RMRS, RINA
Technical Specifications
Treatment Capacity & Effluent Quality
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Rated Capacity: 40 persons | Max Capacity: 44 persons
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Effluent Standards:
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BOD5 ≤ 25 mg/L | COD ≤ 125 mg/L | TSS ≤ 35 mg/L
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Coliforms ≤ 100/100mL | pH 6-8.5 | Residual Chlorine ≤ 0.5 mg/L
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Tank & Structural Details
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Material: Mild steel with sandblasted (2.5 grade) & epoxy-coated interior
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Dimensions (L×W×H): 1800 × 1450 × 1750 mm
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Weight: Dry – 1,450 kg | Wet – 3,826 kg
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Hydraulic Test: 2M water column pressure
Key Components
| Component | Specifications |
|---|---|
| Cutting Pump | 0.5CWF-8 (0.75 kW, 5 m³/h) |
| Air Pump | 2RB 210-7AH16T (0.55 kW, 80 m³/h) |
| Discharge Pump | 25ZB-2-20 (0.75 kW, 2 m³/h) |
| UV Sterilizer | X-0.5UV (AC220V, 50Hz) |
| Electric Control Box | 21DF-1M-01YL (Automated operation) |
How It Works – Advanced Biological Treatment
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Aeration & Oxidation – Breaks down organic pollutants using activated sludge & biofilm
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Membrane Filtration – Removes suspended solids (TSS) for clearer effluent
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UV Disinfection – Ensures pathogen-free discharge without chemicals
Certifications & Compliance
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IMO MEPC 227(64) & MEPC 284(71) compliant
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IACS-approved with optional certifications: ABS, BV, CCS, DNV, LR, NK, KR, RMRS, RINA
Ideal Applications
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Small passenger ships & yachts
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Fishing vessels & workboats
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Offshore platforms & marine sanitation systems
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