Water Treatment
Description
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). The MEPC.2 (VI) resolution adopted on 3 December 1976 is the present guidelines on implementation of effluent standards and performance tests for STP, which is called “old standards”. This device is according to the MEPC.159 (55) resolution enacted on 13 October 2006, which is called “new standards”. The convention (MARPOL 73/78) provides that all STPs installed on board on or after 1 January 2010 should meet the MEPC.159 (55) resolution.
Summary all the rules and effluent standards as followings:
IMO
Old standard IMO
New standard USCG Alaska
TSS (mg/l) 50 35 150 30
BOD5 (mg/l) 50 25 NR 30
COD (mg/l) NR 125 NR NR
Coliform (per 100ml) 250 100 200 20
PH 6~9 6~8.5 NR 6~9
Residual chlorine (mg/l) NR ＜0.5 NR 10
Duration of type approval test (days) 10 10 10 30
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China Century Marine Equipment Co., Ltd
marine solas life jackets, life rafts, life boats, fire fighting equipment, air breathing apparatus, fire monitors, fire pumps, fire hoses, marine cables, marine bells
Address: 9 Building Xing Sheng Road Jiu Long Po Development District, Chongqing, China ,
chongqing, chongqing
China, 400050
Tel: 0086-23-86805761
Fax: 0086-23-86803592
