Device and method for treating ship ballast water multifunctionally by electro-fenton like technology

Abstract

The invention discloses a device for treating ship ballast water in a multifunctional coupling integration way by an electro-fenton technology. The device comprises an electro-fenton like reactor and a deposit clearing pond, wherein the electro-fenton like reactor is connected with the deposit clearing pond through a pipeline. The invention further provides a method for treating the ship ballast water in a multifunctional coupling integration way by the electro-fenton like technology. The device and the method for treating the ship ballast water have the beneficial effects as follows: compared with a general electro-fenton method, wastewater is directly taken as a treatment object, and pH value is not adjusted, so that operation is simple and convenient; effects of carrying out catalytic oxidation, electrolytic oxidation, electric flocculation and adsorption and the like on free radicals are effectively coupled and integrated so as to achieve the purposes of removing different types of pollutants at the same time, so that the method is strong in adaptability, is suitable for pollution control of complicated water environments, and has a good pollution control effect; and flocculation effect is formed by original seawater alkaline condition to generate flocculated granules, so that contact area is increased, the mass transfer speed is accelerated, and .OH generation efficiency is improved.

Description

technical field [0001] The invention relates to an electro-Fenton-like device and method for treating pollutants such as algae and metabolic toxins in ship's ballast water, more specifically, to an electro-Fenton-like device for multi-functional coupling and integrated treatment of ship's ballast water with method. Background technique [0002] In recent years, red tides along the coast of my country have become more and more serious. One of the important reasons is the harm of alien red tide organisms with strong survivability. The discharge of ship's ballast water is one of the main reasons for the invasion of foreign organisms in coastal waters. Biological pollution such as algae in ship ballast water is recognized as the main environmental pollution problem at present. The solution to the marine environment and safety problems caused by seaweed plankton mainly includes two aspects: one is the inactivation and separation of algal cells, and the other is the degradation ...

AI Technical Summary

Problems solved by technology

However, the requirements of acidic conditions limit the application of electro-Fenton technology in many treatment systems, and there are technical deficiencies in the solution of many complex pollution problems by single oxidation.

At present, the electrochemical treatment technology of ship ballast water mainly adopts electrolysis method, which relies on the electrolysis of seawater to produce hypochlorous acid, sodium hypochlorite, etc. to oxidize and decompose the biological enzymes in microorganisms to make them invalid, or act on the cell walls of microorganisms to increase their permeability. Large, leading to cell death due to cytoplasmic efflux

The most direct impact of this electrolytic treatment technology is the outflow of a large amount of intracellular substances, resulting in the increase of biological toxins in seawater

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