Ballast water algae removal and sterilization device and method based on cesium 137 irradiation and ultraviolet irradiation

Abstract

A ballast water algae removal and sterilization device based on cesium 137 irradiation and ultraviolet irradiation comprises a ballast water bin, an irradiation pipe, a submersible water impeller, a first submersible pump, a second submersible pump and an ultraviolet treatment device, a radioactive source belt is arranged on the irradiation pipe, and an inner lead shielding layer and an outer leadshielding layer are arranged on the two sides of a radioactive source respectively; and a radioactive substance cesium 137 is stored in a radioactive substance. The algae removal and sterilization method comprises the following steps: 1) performing ultraviolet irradiation algae removal and sterilization; 2) performing radioactive ray irradiation algae removal and sterilization; 3) carrying out aeration treatment; and 4) conducting ultraviolet irradiation and drainage. According to the algae removal and sterilization device and method for a ballast water sump, the radioactive substance cesium137 is stored in the radioactive substance, algae inhibition, algae removal and sterilization of different wave bands of a water body can be achieved through gamma ray and ultraviolet wave irradiation, more hydroxyl free radicals can be generated by blowing air, and the algae removal and sterilization effect is improved. The ecological balance of different sea areas is favorably maintained.

Description

technical field [0001] The present invention relates to a ballast water algae sterilization device and method, more specifically, especially to a ballast water algae sterilization device and method based on cesium 137 irradiation and ultraviolet irradiation. Background technique [0002] Ballast water refers to the water and its suspended matter added to the ship to control the trim, heel, draft, stability or stress of the ship. During the process of sailing and loading cargo, it is necessary to discharge or inhale fresh water or sea water frequently to adjust the amount of ballast water on board in real time to ensure the safe and stable operation of the ship. When the ship is loaded with ballast water, the aquatic organisms in the local sea area will be loaded into the ballast tank at the same time, and will be discharged to the destination sea area with the ballast water after the voyage is over. [0003] Statistics show that about 5 billion tons of ship ballast water ar...

AI Technical Summary

Problems solved by technology

[0003] Statistics show that about 5 billion tons of ship ballast water are transported every year, and more than 3,000 species of animals and plants are transported to sea areas around the world with ballast water every day, which leads to the invasion and mass reproduction of marine organisms in other places, destroying the ecological balance of local sea areas, Harm fishery resources and affect public health

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