A ship oil-containing ballast water and tank washing water waste residue separation device and a separation process thereof

Abstract

The application relates to the technical field of water treatment, and discloses a ship oil-containing tank-filling water and tank-washing water waste residue separation device and a separation process thereof. The device comprises a separation pipe which can rotate around its own axis. An arc-shaped partition plate is arranged in the separation pipe. The partition plate divides the inner cavity of the separation pipe into a demulsification cavity and a gravity separation cavity. The demulsification cavity is located above the gravity separation cavity. The separation pipe is placed along the longitudinal direction of the ship. The ship oil-containing tank-filling water and tank-washing water waste residue separation device and the separation process thereof use an arc-shaped separation cavity, increase the floating speed of oil droplets and the sinking speed of waste residues, improve the treatment efficiency, and meanwhile, the arc-shaped shape keeps the gravity center position of the separation pipe unchanged, the orientation of the separation pipe tends to remain at the same position, and the influence of ship rolling is small. In addition, the arc-shaped cross section can reduce the impact generated by the transverse movement of water flow, and further reduce the influence of ship rolling on the gravity separation efficiency.

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