Marine Sewage Treatment Equipment

Marine Sewage Treatment Equipment | IMO MEPC.159(55) Certified | USCG & Alaska Compliant

Advanced Marine Sewage Treatment System for Ships & Vessels

Our marine sewage treatment equipment is designed to meet the strictest international regulations, including the IMO MEPC.159(55) standards (new standards) under MARPOL Annex IV, ensuring pollution prevention for ships operating in oceans and seas. Compliant with USCG and Alaska discharge standards, our system provides efficient, reliable wastewater treatment for vessels of all sizes.

Key Features & Compliance

✔ IMO Certified – Exceeds MEPC.159(55) effluent standards (effective since 2010)
✔ USCG & Alaska Approved – Meets stringent Alaska DEC and US Coast Guard requirements
✔ Advanced Biological Treatment – Utilizes activated sludge, contact oxidation, and biofilm processes for superior organic pollutant breakdown
✔ Compact & Energy-Efficient – Low power consumption with AC 380V-440V, 50/60Hz options
✔ Multiple Class Certifications – ABS, BV, DNV GL, LR, RINA, NK, USCG, CCS approved

Effluent Quality Standards Comparison

Parameter	IMO Old Standard	IMO New Standard (MEPC.159(55))	USCG	Alaska
TSS (mg/L)	50	35	150	30
BOD5 (mg/L)	50	25	NR	30
COD (mg/L)	NR	125	NR	NR
Coliform (CFU/100mL)	250	100	200	20
pH	6–9	6–8.5	NR	6–9
Chlorine (mg/L)	NR	<0.5	NR	10
Test Duration (Days)	10	16	10	30

Technical Specifications & Capacities

Available Models & Performance Data

Model	SWCM(I)-15	SWCM(I)-20	…	SWCM(I)-400
Avg. Load (L/day)	1,190	1,540	…	30,800
Peak Load (L/hr)	149	193	…	3,850
Organic Load (kg BOD5/day)	0.595	0.77	…	15.4
Rated Capacity (Persons)	15	20	…	400
Max Capacity (Persons)	17	22	…	440
Power (kW)	2.5	2.5	…	11
Dimensions (L×W×H, mm)	1870×1200×1450	1680×1400×1570	…	5980×2450×2600
Dry Weight (kg)	1,000	1,000	…	4,200
Wet Weight (kg)	2,283	2,640	…	25,417