WCB Series Marine Sewage Treatment Plant | Meets IMO Standards
Compact environmental protection equipment designed specifically for limited ship spaces . Integrated three stage processes include biological contact oxidation, MBR membrane filtration, and ultraviolet disinfection. Discharge indicators fully comply with IMO. MEPC.227(64) resolution requirements.
Accreditation and Certificates:
WCB series equipment processes domestic sewage generated in ship personnel toilets specifically. Sewageundergoes pretreatment first before entering a buffer tank. Biochemical processing then activates to break down organic matter. Processed liquids proceed into membrane groups or discharge directly. Filtered water receives ozone or ultraviolet disinfection prior to overboard discharge. Equipment design features compact structures and light weights. Small footprints suit environments with limited ship space perfectly. PLC program controls make daily maintenance much more convenient. Zero load statuses trigger automatic sleep programsto save energy. Multiple treatment modes meet specific discharge requirements across different sea areas. Products hold type approvals from CCS, ABS, BV, EC, and USCG.
Product Drawings：
Technical Specifications：
| Model | WCB-20 | WCB-30 | WCB-40 | WCB-60 | WCB-80 | WCB-100 | WCB-150 | WCB-200 | WCB-250 | WCB-300 | WCB-400 |
| Rated Capacity (Persons) | 20 | 30 | 40 | 60 | 80 | 100 | 150 | 200 | 250 | 300 | 400 |
| Hydraulic Load (m²/day) | 1.54 | 2.31 | 3.08 | 4.48 | 6.02 | 7.7 | 11.2 | 14.7 | 18.2 | 23.1 | 30.8 |
| Organic Load (kg/day) | 0.77 | 1.15 | 1.54 | 2.24 | 3.01 | 3.85 | 5.6 | 7.35 | 9.1 | 11.55 | 15.4 |
| Power Supply | AC380V 50Hz / AC440V 60Hz | ||||||||||
| Power (kW) | 5 | 5 | 5 | 5 | 5 | 8 | 8 | 10 | 10 | 12 | 12 |
Water Quality Standards for Treated Domestic Sewage
| Parameter /Indicator | Standard Value |
| Thermotolerant Coliforms | ≤100 CFU/100mL |
| Total Suspended Solids (TSS) | ≤35 mg/L |
| Five days BiochemicalOxygen Demand without nitrification (BOD5) | ≤25 mg/L |
| Chemical Oxygen Demand (COD) | ≤125 mg/L |
| pH Value | 6-8.5 |
| Residual Chlorine | <0.5 mg/L |
Key Features：
- Three Stage Process: Utilizes biological contact oxidation, MBR filtration, and UV disinfection.
- Compact Design: Features compact structures, light weights, and small footprints.
- Smart Control: Uses PLC program controls. Automatic sleep programs adapt to zero load statuses.
- Easy Maintenance: MBR membranes use internal and external designs for easy repair, disassembly, and upkeep.
- High Compliance: Discharge water indicators fully meet IMO. MEPC.227(64) resolution standards.
Applications：
- Commercial Ships: Treats black and grey water on bulk carriers and container ships. Meets strict international route environmental requirements.
- Offshore Platforms: Installed on offshore platforms to treat domestic sewage. Protects the ecological environment of operational sea areas.
- Passenger Ferries: Processes domestic sewage generated in ship personnel toilets. Multiple treatment modes suit requirements across different sea areas.
Installation & Maintenance：
Installation: Pipeline layouts must fit ship spaces logically. Reserve adequate space for handling internal and external MBR membrane groups for easy disassembly and upkeep.
Maintenance: Clean filters to prevent clogs. Monitor equipment operation daily to guarantee normal conditions. Check valves and pipelines for clogs or leaks. Pay attention to timely chemical additions.
Custom Options Available：
Power supply systems offer AC380V 50Hz and AC440V 60Hz options to match different marine grids. Rated user capacities range from 20 to 400 persons.
FAQ ：
Q: What specific types of sewage does the unit treat?
A: Marine sewage mainly includes black water and grey water. Black water refers to toilet discharge containing feces and urine. Grey water includes shower, laundry, and galley drainage.
Q: What happens to the system when passenger counts drop and loads become very low?
A: Systems feature automatic sleep programs to adapt to zero load statuses.
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