Ship ballast water comprehensive treatment system

Abstract

The invention discloses a ship ballast water comprehensive treatment system, which comprises a ballast water pretreatment filter, a ballast water treatment box and a deep sea water replacing device. The working conditions of the ballast water pretreatment filter, the ballast water treatment box and the deep sea water replacing device are controllable, and the ballast water can be treated differently according to different water quality conditions of ship ballast water and requirements of different port states so as to ensure that the ballast water in a ballast tank satisfies IMO prescriptions. The ship ballast water comprehensive treatment system accords with safe, effective, environmentally-friendly, operable and economical requirements.

Description

Ship ballast water comprehensive treatment system technical field The invention relates to a device for treating ballast water in a ship's ballast tank. Background technique Ships have long used ballast water for stability and safety of navigation. According to the needs of specific operations, ballast water is injected or discharged into the ballast tank of the ship to achieve the following purposes: (1) adjust the draft of the ship and the longitudinal and lateral stability of the ship and the safe metacenter height; (2) reduce The deformation of the hull can avoid excessive bending moment and shear force, and reduce the vibration of the hull; (3) improve the seaworthiness of the ship when it is empty. According to relevant data, ships around the world carry about 12 billion tons of ballast water every year, and there are as many as 7,000 species of organisms in the ballast water of ships traveling around the world every day. Many bacteria, plants and animals still sur...

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Problems solved by technology

However, the area where water can be obtained is limited

(3) On-shore treatment method, which discharges ballast water to the on-shore sewage treatment plant for treatment. Due to the problems of large treatment capacity, long time, large floor area, and low equipment utilization, the operating cost is greatly increased

The hazards caused by ship's ballast water have attracted widespread attention from the international community. Although there are a variety of methods to deal with ship's ballast water, it is difficult for any single method to meet the requirements of the International Maritime Organization (IMO) so far.

By analyzing and comparing the advantages and disadvantages of various ballast water treatment methods and devices at present, it is believed that a single ballast water treatment method and device cannot meet the requirements of IMO on ballast water treatment

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