Method and device for restoring ecology

Abstract

The invention discloses a method and a device for restoring ecology, and belongs to the technical field of water eutrophication treatment. In the method for restoring the ecology, water restoration is performed by biological carriers and in an aeration mode; the biological carriers suspend in the water with different depths and the biological carriers of each layer of depth are arranged uniformly and fixed; the biological carriers have the high specific surface area and the high porosity, provide a good ecological environment for the growth and the propagation of organisms, and also provide enough dissolved oxygen for the biological oxidation through the aeration; in the aeration mode, a rotatable aerator which is complementarily powered by wind energy and electric energy is adopted to increase the aeration area, so that the water restoration effect is improved. An organism system which is attached on the biological carriers decomposes an organic matter in the water through metabolism per se; an aeration pipe and the aerator aerate and rotate at the same time, so that the water aeration area is increased greatly; and the method and the device have the advantages of environmental protection and the like.

Description

technical field [0001] The invention discloses an ecological restoration method and a device thereof, which belong to the technical field of water body eutrophication control, and in particular relate to an ecological restoration method and a device combining biological carriers and aeration and reoxygenation technologies. Background technique [0002] Eutrophication refers to the massive discharge of farmland fertilization, agricultural waste, urban domestic sewage, industrial wastewater such as food processing and stored product processing, and animal and plant residues in the process of human production and life, and long-term deposition in the Under the action of spoilage bacteria, the bottom mud continuously releases nitrogen, phosphorus and other nutrients to the water body, becoming an endogenous pollution source of the water body. When excessive nutrients enter lakes, reservoirs, estuaries, bays and other water bodies, aquatic organisms, especially algae, will multip...

AI Technical Summary

Problems solved by technology

[0005] At present, electric energy is mostly used for aeration in the aeration and reoxygenation method, and the energy consumption is high.

The research and application of aeration devices powered by renewable energy such as solar energy and wind energy is an emerging scientific research direction. The patent application number is 200910047293.8, which discloses a buoy-type solar-driven flow-making aerator, which is charged by solar energy and has no secondary In the case of pollution, it can effectively achieve high-efficiency aeration and oxygenation. However, in case of rainy weather, the power supply of the aerator is limited, which has a certain impact on the use and promotion of the product.

In addition, more ecological restoration still needs to rely on biological degradation. The simple aeration and reoxygenation method of ecological restoration only provides high-concentration dissolved oxygen, and the efficiency is low.

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