Swcm Series Marine Sewage Treatment Plant

• Trademark: PIOTRONICS
• Model NO.: SWCM-20

Product Description

SWCM Series Marine Sewage Treatment Plant


Marine Sewage Treatment Plant belongs to the key devices for prevention of pollution form ships in seas and oceans according to the revised Annex IV of the International Convention of the Prevention of Pollution (MARPOL 73/78).This device 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 overboard . This device is according to the resolution MEPC.159(55) enacted on 13 October 2006.The convention (MARPOL 73/78) provides that all STPs installed on board on or after 1 January 2010 should meet the resolution MEPC159(55) and MEPC.227(64).
The device also can be used in terrestrial sewage,besides in ship vessels and oil platform.The water quality after treatment can reach the national reuse water quality requirements. It is also applicable to treat the galley,shower drainage which is called "grey water" on condition that the "grey water" is pretreated and there should select a bigger capacity model to match with.
This device has obtained one item of Authorized Patent and one item of Practical new patent, meanwhile has been obtained the Type Approval of CCS and IMO circular in April 2009, and it in February 2011 by Germanischer Lloyd (GL) type approvalcertificate MED made, while providing ABS, DNV, BV, RS and other classification societies certificate.
The different effluent standards and days for type test in some organizations are as follows:
 

Convention Discharge standard	IMO   old standand	IMO   new standand	USCG	Alaska
TSS (mg/1)	50	35	150	30
B0D5 (mg/1)	50	25	NR	30
COD (mg/1)	NR	125	NR	NR
Coliform (100ml)	250	100	200	20
PH	6~9	6~8. 5	NR	6~9
Chlorine (mg/l)	NR	<0.5	NR	10
Test days (	10	16	10	30

Principle Description

This device adopts the principle of Activated Sludge, Bio-contact Oxidation and Membrane Biological Reactor (MBR) to digest organic pollutant. MBR can treat organic pollutant efficiently, drastically and cleanly to ensure the effluent can meet the requirements of the resolution MEPC.159 (55) and other much hasher requirements.
Treatment Flow


sewage inlet → aeration → contact oxidation → sediment → membrane → disinfectant → effluent

Sludge return




Specification


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,Adoptingthe "MBR" technology, devices allow tothe narrow 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 deviceisadoptingthe principle of"air-lifting"totransfer thesludge fromsedimenttank and membranetank
to aeration tank, meantimes 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.
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.

1. The effluent after further treatme can be reached at the requirement of "water recovery".

Technical Data

Model		SWCM
		10	15	20	25	30	40	50	60	80	100	120	150	200	250	300	400
Treated Load	(L/d) Average load	840	1190	1540	1890	2310	3080	3780	4480	6020	7700	9100	11200	14700	18200	23100	30800
	(L/h) Peak load	105	149	193	237	289	385	473	560	753	963	1138	1400	1838	2275	2888	3850
	(kgBOD5/d)Organic load	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(P)		10	15	20	25	30	40	50	60	80	100	120	150	200	250	300	400
Max capacity (P)		12	17	22	27	33	44	54	64	86	110	130	160	210	260	330	440
Electricity		AC380V,50Hz,3φ/AC44V,60Hz,3φ
Power (kw)		2.25	2.25	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	11.0
(mm) External dimensions Length×width×height		1350 × 1200  × 1370	1850 × 1200 × 1400	1660 ×  1400  × 1550	1890 × 1400 × 1560	1980  × 1500 × 1650	2270 × 1600 × 1700	2300 × 1700 × 1820	2650 × 1700 × 1830	2790 × 1900 × 2050	2706 × 2000 × 2200	3000 × 2000 × 2200	3080 × 2200 × 2300	3630 × 2200  × 2350	3880 × 2400 × 2570	4780  × 2400 × 2600	5980 × 2400 × 2600
Weight	Dry weight (kg)	900	1000	1000	1100	1200	1300	1450	1600	1850	2200	2300	2800	3000	3300	3700	4200
	Wet weight (kg)	1775	2283	2640	2740	3500	4400	5073	5270	6517	8268	9166	11340	13267	16538	20357	25417
Discharge standard		TSS≯35mg/L, B0D5≯25mg/L,C0D≯125mg/L,(Colichin)≯100ml,PH:6~8.5

Note: Our company keeps the right of modifying the outline, The outline is only for your reference, please take the material object as standard.
System Principle Drawing







Outline Dimension and Interface
 

Model	Outline Dimension(mm)			Sewage  Inlet DN	Air Vent DN	Effluent Outlet DN	Flushing Water Inlet DN	0verflow Outlet DN	Dosing Inlet DN	Emergency  discharge outlet DN
	L	B	H
SWCM-10	1350	1200	1370	150	100	32	40	65	32	40
SWCM-15	1850	1200	1400	150	100	32	40	65	32	40
SWCM-20	1660	1400	1550	150	100	32	40	65	32	40
SWCM-25	1890	1400	1560	150	100	32	40	65	32	40
SWCM-30	1980	1500	1650	150	100	32	40	65	32	40
SWCM-40	2270	1600	1700	150	150	32	40	65	32	40
SWCM-50	2300	1700	1820	150	150	32	40	65	32	40
SWCM-60	2650	1700	1830	150	150	32	40	65	32	40
SWCM-80	2790	1900	2050	150	150	32	40	65	32	40
SWCM-100	2706	2000	2200	150	150	32	40	65	32	40
SWCM-120	3000	2000	2200	150	200	32	40	65	32	40
SWCM-150	3080	2200	2300	150	200	32	40	80	32	40
SWCM-200	3630	2200	2350	150	250	32	40	80	32	40
SWCM-250	3880	2400	2570	150	250	32	40	100	32	40
SWCM-300	4780	2400	2600	150	250	32	40	100	32	40
SWCM-400	5980	2400	2600	150	250	40	40	100	32	40