Solar biological floating bed device for purifying eutrophic water

Abstract

The invention provides a solar biological floating bed device for purifying eutrophic water. The solar biological floating bed device comprises a solar device, solar panels and biological floating beds, wherein the solar device is arranged on a light anticorrosive frame, the left and right sides of the solar device are separately connected with one biological floating bed; and the fronts of the left and right biological floating beds and the front of the solar device are connected with one solar panel, and correspondingly, the backs of the left and right biological floating beds and the back of the solar device are connected with one solar panel. The device of the invention combines the solar ecological restoration technology with the biological floating bed technology and fully utilizes the advantages of the two technologies to treat eutrophic water; and the device is characterized in that the device has treatment efficiency, complete purification, wide application range and no secondary pollution, is flexible to operate, takes effect fast and can save energy, etc.

Description

technical field [0001] The invention relates to a device for treating eutrophic water body, in particular to a device for purifying sewage by utilizing solar energy and a biological floating bed, and belongs to the technical field of environmental protection engineering and water treatment. Background technique [0002] With the development of the economy, the excessive discharge of a large amount of industrial wastewater and domestic sewage organic pollutants has led to excessively high content of nutrients such as total nitrogen and total phosphorus in lakes and other water bodies, exceeding the self-purification capacity of lakes, causing algae to multiply and destroy The original ecological balance reduces the use function of the water body. In some natural water bodies, the water body is basically in a static state, or the flow velocity of the water body is relatively small. Due to different water depths and other factors, the water quality of each layer of water body ...

AI Technical Summary

Problems solved by technology

Due to different water depths and other factors, the water quality of each layer of water body is different. The surface water is in contact with the outside atmosphere, and the dissolved oxygen content is relatively high. However, as the water depth increases, the dissolved oxygen content gradually decreases, and the bottom water body is severely anoxic. state, the sediment is under anaerobic conditions, and a large amount of organic pollutants accumulate, resulting in increasingly serious water eutrophication

Due to the constraints of natural factors such as wide basins, large areas, and complex topography of natural water bodies, as well as the high operating costs of traditional water treatment, and the lack of power facilities near many natural water bodies, it is also an important factor that plagues the management of natural water bodies.

There are many methods for treating eutrophic water bodies, including: (1) Physical methods: such as filtering algae, clay algae, air flotation, water change / dilution, dredging, mechanical algae harvesting, etc., with large investment and operating costs High, sometimes poor efficiency; (2) Chemical methods: such as chlorine algae removal, ozone algae removal, potassium permanganate algae removal, etc., this method has secondary pollution problems; (3) Biological-ecological methods: such as aquatic phytoremediation Technology, aquatic animal restoration technology, biofilm technology, etc., are more suitable for the prevention of eutrophication, because biological growth has certain requirements on the external environment, when the external environmental conditions change, it will inevitably affect its treatment effect

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