What is the effect of micro-nano bubble exhaust gas treatment

2022-03-15 17:08:39

Nanobubble waste gas treatment technology uses nanobubbles to spray and expand the waste gas to decompose the pollutants in the waste gas during the contact process. The waste gas treatment efficiency of this method is high, and the removal effect of refractory organic waste gas such as odor, formaldehyde, benzene series, sulfide, alcohol and halide is obvious.

The principle of nanobubble waste gas treatment technology

The principle of nano-bubble waste gas treatment technology is mainly to use nano-scale water bubbles to make the atomic groups of water molecules smaller, and the oxygen in the nano-bubbles is integrated into the gaps of the atomic groups, and the oxygen molecules break the water interface. When a large number of superoxide nanobubbles are dissolved and ruptured in water, the instantaneous high temperature and cracking ultrasonic waves generate a large amount of negative oxygen ions, thereby releasing hydroxyl, Free radicals, physical and chemical reactions of mechanical shearing, pyrolysis, free oxidation machine, and supercritical water oxidation with the captured organic gas, so as to achieve the effect of decomposing and removing VOC gas.

Advantages of nanobubble waste gas treatment

The advantages of nano-bubble waste gas treatment are: capture a large number of nano-scale and ultra-nano-scale bubbles through adsorption, decomposition and active release, with strong adsorption capacity, they also have strong negative ion release capacity, and their microelectrodes can remove water in the air. Molecules are electrolyzed into hydroxyl anions. This hydroxyl anion and the resulting hydroxyl radicals have strong decomposition ability, which can not only effectively decompose the harmful substances adsorbed in the micropores of the ceramsite filler, but also make the material self-cleaning, thereby ensuring Its long-term effect can release a large amount of hydroxyl anions into the ambient air, actively capture and remove harmful gases in the air, and make the ambient air fresh.

Disadvantages of nanobubble waste gas treatment

In terms of sewage treatment, micro-nano bubble water has basically no effect on sterilization. Micro-nano bubbles themselves do not have the characteristics of killing bacteria, but when the bubbles burst, they generate some hydroxyl radicals that can kill bacteria. After aeration, the colonies in the water have obvious changes, but because the number of them is relatively small, and at the same time, there may be many easily oxidized substances in the water to reduce or disappear, so under normal circumstances, micro-nano bubble water does not show bactericidal ability.

At present, due to the lack of research and application of nanometers in waste gas treatment, the application effect of nanobubbles in waste gas treatment is limited according to the data. There are still some areas to be studied and improved. For example, it can be used in combination with other purification technologies to treat exhaust gas in a large area to improve the efficiency of exhaust gas removal.

The effect of nano-bubble waste gas treatment is shown in: large specific surface area of waste gas treatment, slow rising speed, self-pressurized dissolution, surface charging, generation of a large number of free radicals, high mass transfer efficiency, and high gas dissolution rate.

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