Method and device for processing ship ballast water by applying advanced electro catalysis oxidation

Abstract

The invention discloses a method for processing ship ballast water by applying advanced electro catalysis oxidation. The method comprises the following steps of: applying a special catalyst electrode material; generating high-concentration hydroxyl free radicals in micro-current density through advanced electro catalysis oxidation in a ballast water body; and performing biochemical reaction of the hydroxyl free radicals and microorganism in the ballast water to cause oxidative stress damage of the microorganism in the ballast water and further stop life of the microorganism, wherein the biochemical reaction means biochemical processes such as lipid peroxidation of hydroxyl free radicals and the microorganism in the ballast water, oxygenolysis of amino acid, protein comformational change, DNA oxidation, cytochrome decoloration and the like. The device comprises a power supply, a catalytic tank, an electrode anode and an electrode cathode, wherein the electrode anode and the electrode cathode are arranged in the catalytic tank, are connected with the power supply and are made of high-efficiency electro catalysis materials. According to the method, reaction activity and reaction speed are high, poison reaction products cannot be produced, secondary pollution on environment is prevented, energy sources are saved, and requirements on low carbon and environment friendliness are met.

Description

technical field [0001] The invention relates to the technical field of water treatment and environmental protection, in particular to a method and a device for electrocatalytic advanced oxidation treatment of ship ballast water. technical background [0002] The invasive spread of alien pests has been recognized by the World Environmental Protection Fund (GEF) as one of the four major threats to the ocean, and the ship's ballast water is the most important way to cause the invasion of pests. Every year, ships around the world carry about 10 billion tons of ballast water, and a cargo ship with a capacity of 100,000 tons carries 50,000 to 60,000 tons of ballast water, with an average of 110 million phytoplankton per cubic meter of ballast water. There are 3000-4000 species of organisms in the global ballast water every day, about 300 million dinoflagellate spores survive in a ballast water tank, and there are 22500 / cm3 phytoplankton spores in the bilge sediment, so far confirm...

AI Technical Summary

Problems solved by technology

Although the method of electrolysis of seawater has a good bactericidal effect, after the electrolysis method is used to kill bacteria, the carcinogenic substance chloroform may be produced, which will cause secondary pollution to the environment

[0011] Due to the huge amount of ballast water loaded on ships, ranging from dozens of tons per hour to several thousand tons per hour, and the short time required to treat ballast water, coupled with the constraints of the marine environment and sustainable development of the marine economy, the existing kill Microbiological methods (or agents) cannot meet the requirements

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