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Product Description
1050L/d Marine Sewage Treatment Plant
Product Introduction:
The DY-15 Marine Sewage Treatment Plant is a compact, fully automatic onboard treatment system engineered to process domestic wastewater—including sewage from toilets, galley waste, and bathing water—from vessels with a crew of up to 15 persons. Built upon the same proven technology platform as the DY-10, this upgraded model offers increased capacity while maintaining the same compact footprint and operational simplicity that the DY Series is known for.
Advanced Multi-Stage Treatment Process:
The DY-15 integrates three complementary treatment technologies in a single, space-saving unit:
1.Oxidative Degradation: Raw sewage first undergoes aerobic biological oxidation, where oxygen supplied by an air blower promotes the growth of aerobic bacteria that rapidly break down organic contaminants.
2.Membrane Microfiltration: The biologically treated effluent passes through microporous membrane modules that physically separate fine suspended solids, bacteria, and residual particulate matter, producing exceptionally clear permeate.
3.Physical Disinfection & Sterilization: The clarified effluent is finally treated with a physical disinfectant (such as chlorine or ultraviolet light) to eliminate any remaining pathogenic microorganisms, ensuring safe overboard discharge.
Superior Design Advantages:
Compared to conventional biological treatment systems, the DY-15 delivers remarkable benefits:
*Compact & Lightweight: Minimal space requirement and low deadweight impact—ideal for vessels with limited engine room or accommodation deck area.
*Maintenance-Friendly: Simple, intuitive controls with minimal daily attention required; membrane modules are designed for easy cleaning and long service life.
*No Secondary Pollution: The combined physical–chemical treatment process produces no harmful by-products, making it environmentally responsible.
*Stable Performance Under Marine Conditions: Reliable operation under vessel inclination (up to 22.5°), fluctuating ambient temperatures (0°C – 55°C), and high humidity.
Drawing:
Technical Specifications:
| Model | DY-15 | |
| Hydraulic Load | L/d | 1050 |
| Organic Load | kg/d BOD₅ | 0.525 |
| Power Supply | Customizable | AC220V/AC380V/AC440V |
| Certificate | Standard | MEPC.227(64) And GB3552-2018 Article 5.2.2 and 5.2.4 |
| Total Power | kW | 2.0 |
| Overall Dimensions | L(mm) | 930 |
| W(mm) | 850 | |
| H(mm) | 1450 | |
| Net Weight | kg | ~450 |
Regulatory Compliance & Certifications:
Effluent discharged from the DY-15 fully complies with the most stringent international and national regulations, including:
*IMO MEPC.227(64) – "2012 Guidelines on Implementation of Effluent Standards and Performance Tests for Sewage Treatment Plants".
*MARPOL 73/78 Annex IV – International Convention for the Prevention of Pollution from Ships.
*GB3552-2018 – "Discharge Standard for Water Pollutants from Ships" (Clauses 5.2.2 and 5.2.4).
*The DY Series has obtained type approval certifications from CCS, BV, EC, RS, RINA, ABS. ensuring full acceptance by port state control authorities worldwide.
Typical Applications:
*Medium-sized fishing vessels and trawlers.
*Small passenger ferries and work boats.
*Offshore support vessels with limited crew capacity.
*Yachts and recreational craft accommodating up to 15 persons.
