Marine Waste Water Treatment Unit

1.Marine Waste Water Treatment Unit

The unit is applicable to treat the toilets sewage on ships and also to sterilize grew water. The treated sewage can meet internatinal standards for effluent discharge.

The operation of the plant is automatic. Warning is set to show the load status of sewage in the tank. The unit has small footprint, but the treatment ability is strong, it can serve many people in low flush water condition.

The plant can be welded or bolted on the ship base.

2. 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.

3. Technical parameters

Model		SWCM-
		15	20	25	30	40	50	60	80	100	120	150	200	250	300	400
Load	Average load (L/d)	1190	1540	1890	2310	3080	3780	4480	6020	7700	9100	11200	14700	18200	23100	30800
	Peak load(L/h)	149	193	237	289	385	473	560	753	963	1138	1400	1838	2275	2888	3850
	Organic load (kgBOD5/d)	0.595	0.77	0.945	1.155	1.54	1.89	2.24	3.01	3.85	4.55	5.6	7.35	9.1	11.55	15.4
Rated capacity (men)		15	20	25	30	40	50	60	80	100	120	150	200	250	300	400
Max capacity(men)		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
Power(kW)		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		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)	1000	1000	1200	1200	1300	1450	1600	1850	2200	2300	2800	3000	3300	3700	4200
	Wet weight(kg)	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