Application: Sewage treatment plant is designed to treat “black water”(human body wastes and wastes from toilet on vessels) and “grey water”(wasted water from galley,shower drainage).It is widely used in ship vessels and oil platform. Standard:can meet IMO.MEPC.159(55) Approved Certificate:CCS,GL,DNV,BV,ABS Principle Description: This device adopts the principle of activated sludge,Bio-contact Oxidation and Membrane Biological Reactor(MBR) to digest organic pollutant. Technical Details: