Desulfurization and denitrification device based on biological bacteria

Abstract

The invention relates to the field of industrial flue gas treatment, and particularly discloses a biological bacterium-based desulfurization and denitrification device, which comprises a bio-trickling filter tower, a circulating pipeline and a water suction pump, a filler layer loaded with a biological membrane is arranged in the bio-trickling filter tower, the circulating pipeline is communicated with the upper part and the lower part of the bio-trickling filter tower, and the circulating pipeline is communicated with the water suction pump. Comprising an elastic part, a nutrient solution supply tank, an alkali liquor supply tank, an iron filter screen and a movable push plate with a hole, a circulating pipeline section above a tower top is arranged in a wavy shape, one wavy pipeline section close to a water suction pump is higher than other wavy pipeline sections, and the alkali liquor supply tank and the nutrient solution supply tank are communicated with the circulating pipeline. A boss is arranged on the inner wall of the pipeline located at the joint of the alkali liquor supply tank, the movable push plate is slidably connected with the inner wall of the circulating pipeline, the movable push plate moves the hole to the outlet of the alkali liquor supply tank after being impacted by liquid, and the elastic piece is fixed between the boss and the movable push plate. The problem that the nutrient solution cannot be continuously supplied all day long under the condition of discontinuous production is solved.

Description

technical field [0001] The invention relates to the field of industrial flue gas treatment, in particular to a desulfurization and denitrification device based on biological bacteria. Background technique [0002] Coal combustion brings a large amount of SO2 and NOx, which seriously affects human health. China's primary energy is still dominated by coal, and 87% of SO2 and 67% of NOx come from the combustion of coal, which poses a huge threat to the atmospheric environment. In recent years, SO2 and NOx emissions have gradually decreased, but the total amount is still very large. Strengthening the removal of SO2 and NOx from flue gas is still an important task. The integrated desulfurization and denitrification technology widely used at home and abroad today is mainly a combination of wet flue gas desulfurization and selective catalytic reduction or selective non-catalytic reduction technology for denitration. Wet flue gas desulfurization commonly uses limestone (lime)-gyps...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a desulfurization and denitrification device based on biological bacteria. In order to solve the problem that the nutrient solution cannot be continuously supplied around the clock under the condition of non-continuous production, this application provides the following technical solutions:

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