Pond ecology-based industrialized circulating water culture and purification system

Abstract

The invention discloses a pond ecology-based industrialized circulating water culture and purification system. The system divides a pond into a culture area, a primary biological purification area, a biological wetland purification area, an ecological purification corridor, an ecological oxidation pond and a buffer area, wherein the culture area comprises a plurality of cuboid water tanks which are longitudinally arranged side by side; the buffer area is positioned at the water inlet end of the culture area; the primary biological purification area is positioned at the water outlet end of the culture area; the primary biological purification area communicates with the biological wetland purification area through a first ditch; the biological wetland purification area and the ecological purification corridor are separated by a fishing net; the ecological purification corridor communicates with the ecological oxidation pond through a second ditch; a water pump is mounted at the junction of the ecological purification corridor area and the ecological oxidation pond; the ecological oxidation pond is positioned at the left side of the culture area and is separated from the culture area and the primary biological purification area; and the ecological oxidation pond is separated from the buffer area by the fishing net. The system disclosed by the invention realizes a centralized high-input, high-yield and short-period efficient culture mode; and pond ecology-based purification is performed on tail water of culture, thereby ensuring zero discharge throughout the whole process.

Description

technical field [0001] The invention belongs to the field of aquaculture and relates to a pond eco-industrialized circulating aquaculture and purification system. Background technique [0002] The main methods of aquaculture in my country include pond culture, cage culture, large water surface culture, and factory (facility) culture. Existing aquaculture models still have varying degrees of problems in the effective use of water resources, land (water) resources, and feed resources, as well as in resisting environmental impacts and affecting the environment. The extensive growth mode has faced greater challenges. Environmental, policy, social and other pressures urgently require the implementation of necessary changes. [0003] Problems in pond culture: [0004] (1) Lack of fine breeds [0005] At present, most aquaculture species are wild types that have not undergone genetic improvement through the process of domestication, and have strong adaptability to changes in env...

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Problems solved by technology

[0006] (2) The environmental load of fishery waters has intensified

At the same time, the aquaculture water body with increased eutrophication needs to be replaced with new water, and the tail water needs to be discharged, which not only wastes precious fresh water resources, but also increases the environmental burden on surrounding lakes, rivers and other waters.

[0008] At present, the existing industrial farming in China is mainly suitable for industrial farming, relying on a large amount of infrastructure construction, high investment, high risk, high operating costs, high tail water purification costs, and has not been effectively combined with large-scale pond farming

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