Sewage treatment plant to deal with biological and chemical disinfection of contact oxidation ship sewage treatment principle. The structure and performance of this device to meet the national standard of marine life GB10833-89< sewage treatment system technology conditions ", the device is smaller, re-light, compact structure, the treatment of waste water discharge standards in line with state regulations, IMO will also meet international environmental ARATS MEPC/2 (VI) emissions standards. The device consists of five chamber components, smashing Room, Room biological contacted oxidation, precipitation and disinfection Room Room.