Offshore Sewage Treatment Plant

This series offshore sewage treatment plant is compliance with the effluent standard of IMO MEPC159(55) , and 33CFR159 II.

This plant is applicable to treat the sewage, which means human body wastes and the wastes from the toilets on vessels and which is also called “black water”, to meet the effluent standards of IMO MEPC.159（55), and discharge the effluent to overboard. It is also applicable to treat galley & shower drainage which is called “grey water” .

The offshore sewage treatment plant uses activated sludge, contact oxidizing and principle of biologic membrane to digest the organic pollutant, which can treat sewage effectively and reach at the IMO new effluent standard or other stricter requirements.

Also, CCS, EC, BV, GL, USCG, ABS certificate class available.

System Principle Drawing:

Advantages:

1. Adopting horizontal circular design, ellipse closures on both ends, pressure resistance and compact structure.

2. The device is adopted auto-control, and compliance with the requirement of 24-hours unattended cabin.

3. Adopting the 'MBR' technology, allow devices to narrow the size, and solve the conflict of small space of cabin, but big volume of device.

4. The intermittent aeration in bio-membrane tank and hollow fiber membrane tank, form the process of 'aerobic - anoxic', and resolve the problem of 'nitrogen and phosphorus removal'.

5. The device is adopting the principle of air-lifting to transfer the sludge from sediment tank and membrane tank to aeration tank, mealtimes the pump stops and air never stopped, so as the scale on the membrane surface comes down. Due to back flushing and clean the membrane online USD technology patent, so the life of membrane can be prolonged at least 8 to 9years.

6. 'On-line' cleaning technology, making the dirt on membrane off automatically, recover membrane flux. It can be solved the problem of opening the cleaning or replacement of membrane difficultly caused by the small space in cabin.

7. The effluent after further treatment can be reached at the requirement of water reuse.

For more information of the specification, please do not hesitate to contact us

The technical datas:

Model		SWCM-
Model		10	15	20	25	30	40	50	60	80	100	120	150	200	250	300	400
LOAD	Average load （L/d）	840	1190	1540	1890	2310	3080	3780	4480	6020	7700	9100	11200	14700	18200	23100	30800
	Peak load （L/h）	105	149	193	237	289	385	473	560	753	963	1138	1400	1838	2275	2888	3850
	Organic load (kgBOD₅/d）	0.42	0.595	0.77	0.945	1.155	1.54	1.89	2.24	3.01	3.85	4.55	5. 6	7.35	9.10	11.55	15.4
Rated capacity （men）		10	15	20	25	30	40	50	60	80	100	120	150	200	250	300	400
Max capacity（men）		12	17	22	27	33	44	54	64	86	110	130	160	210	260	330	440
Electricity		AC 380V/50Hz/3φ, AC 415V/50Hz/3φ, AC 440/60Hz/3φ (optional)
Power （kW）		2.5	2.5	2.5	2.5	2.5	3.0	3.0	3.5	4.0	4.0	4.0	6.0	6.0	7.0	9.0	11
External dimension （mm） L×W×H		1510 × 1200 × 1300	1870 × 1200 × 1400	1745 × 1400 × 1525	1935 × 1400 × 1560	1985 × 1500 × 1650	2400 × 1600 × 1700	2410 × 1700 × 1850	2670 × 1700 × 1850	2780 × 1900 × 2050	2795 × 2000 × 2200	3000 × 2000 × 2200	3050 × 2200 × 2300	3600 × 2200 × 2350	3880 × 2400 × 2570	4750 × 2400 × 2570	5950 × 2400 × 2570
weight	Dry weight（kg）	900	1000	1000	1100	1200	1300	1450	1600	1850	2200	2300	2800	3000	3300	3700	4200
weight	Wet weight（kg）	1775	2283	2640	2740	3500	4400	5073	5270	6517	8268	9166	11340	13267	16538	20357	25417
Effluent standard		BOD5≯25mg/L, COD≯125mg/L, TSS≯35mg/L, Coliform≯100/100ml, PH6～8.5, CL₂≯0.5mg/L