Self-moving aeration device for increasing content of dissolved oxygen in water

Abstract

The invention discloses a self-moving aeration device for increasing content of dissolved oxygen in water. The self-moving aeration device comprises a floating body and a biocatalytic reaction aeration device fixed by the floating body, wherein the biocatalytic reaction aeration device comprises a hydrogen peroxide storage tank, a biocatalytic reaction container and a membrane assembly; a catalasecatalysis bed is fixed in the middle of the biocatalytic reaction container; a trickling filtration spray nozzle communicated with the hydrogen peroxide storage tank is arranged at the upper part ofthe biocatalytic reaction container; a pipeline communicated with the membrane assembly is arranged at the lower part of the biocatalytic reaction container; the membrane assembly is arranged below the floating body. Compared with a traditional moving aeration mode, the self-moving aeration device has the advantages of low energy consumption, no pollution, high oxygen utilization rate and good aeration effect.

Description

technical field [0001] The invention relates to a water body purification treatment device, in particular to a self-moving aeration device for increasing the dissolved oxygen content of the water body. Background technique [0002] About 80% of the urban rivers in our country have been polluted to varying degrees, the floating garbage on the surface is seriously polluted, and the landscape effect is poor, causing serious urban ecological environment problems. The Department of Pollution Control of the National Environmental Protection Agency conducted a survey on urban river sections, and found that about 87% of the river sections were polluted to varying degrees, of which 11% were heavily polluted, 16% were seriously polluted, 15% were moderately polluted, and 33% were slightly polluted. Only 23% of urban river sections have good water quality. Based on the status quo of pollution, the State Council issued the "Water Pollution Prevention and Control Action Plan" (referred ...

AI Technical Summary

Problems solved by technology

[0003] At present, the aeration methods widely used in water purification treatment include fixed aeration and mobile aeration. The fixed aerator takes the aerator as the center and relies on the concentration difference of oxygen molecules to diffuse, which has the disadvantage of slow oxygenation speed, and It will cause the DO value in the center to be too high, while the DO value in the distance is low. Although this will increase the driving force of oxygen mass transfer, the DO value that is too high in the center will seriously hinder the transfer of atmospheric reoxygenation. Mass speed, thus reducing the oxygenation rate of the aerator; while the mobile aerator is centered on each point on the moving route of the aerator, which is equivalent to having multiple fixed aerators operating at the same time, which significantly shortens the The distance and time consumed by the oxygen molecule transmission are shortened, and the oxygenated water migrates with the movement of the aerator, and there is no problem of difficulty in atmospheric reoxygenation

The current mobile aerators, such as jet aerators, rely on floating bodies and are heavy in weight, with high energy consumption, and are limited by energy consumption, so it is impossible to add other energy-consuming functions of the aerator

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