The Marine membrane blackwater and graywater treatment plant adopts the sequential batch-membrane treatment principle to treat organic pollutants. Domestic sewage first enters the buffer tank to adapt to biochemical treatment, and at the same time, this tank can accommodate three times the peak hydraulic load. When the liquid level in the tank reaches the starting liquid level, it is transferred to the sequential batch tank with soft fillers for sequential batch biological contact oxidation treatment. The treated water enters the clean water tank. When a certain liquid level is reached, it enters the membrane module or is directly discharged. The discharged water filtered by the membrane module is disinfected with ozone or ultraviolet rays and discharged outboard. The discharged water quality meets the requirements of IMO. MEPC. 227 (64) resolution.

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