A land-based pond system with the functions of purifying aquaculture discharge water and aquaculture

Abstract

The invention discloses a land-based pond system with the functions of purifying cultivation discharge water and cultivating, comprising a land-based pond cultivation area, a land-based pond inlet ditch, a land-based pond drainage ditch and a purified cultivation pond. The pond culture area is the main body of the culture, which takes in water through the land-based pond inlet ditch and drains water through the land-based pond drainage ditch. The end of the land-based pond drainage ditch is connected to the purification culture pond; Separation and ecological purification area, purified breeding area, and sedimentation area; the foam separation and ecological purification area is provided with a foam separator and an ecological purification pool connected in sequence. The present invention makes full use of the ecological complementarity among cultured organisms. By adjusting the breeding production mode, the ecological restoration and self-purification functions inside the model system can be brought into play, so as to realize the self-purification of the breeding discharge water in the system and reduce the pollution of the breeding to the external environment.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a land-based pond system with the functions of purifying aquaculture discharge water and aquaculture. Background technique [0002] Land-based marine aquaculture is an important development mode of marine fishery in my country. As of 2010, only Shandong Province had a seawater pond aquaculture area of ​​112,500 hectares and an output of 275,200 tons, accounting for 22.45% and 6.95% of the province's total seawater fishery area and total output, respectively. In recent years, the land-based seawater pond aquaculture industry has achieved rapid development. The land-based pond aquaculture of famous and high-quality aquatic products such as seawater shrimp, crabs, sea cucumbers, and shellfish has become an important pillar industry for the development of the marine economy. [0003] At present, the main production mode of land-based seawater pond aquaculture is exte...

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Problems solved by technology

[0003] At present, the main production mode of land-based seawater pond aquaculture is extensive monoculture or polyculture. Disorderly competition in the industry leads to one-sided pursuit of production and excessive reliance on bait input, resulting in a decline in water quality in various aquaculture ponds, a decrease in dissolved oxygen, and a large increase in nitrogen and phosphorus content. Exceeding the standard; a large amount of wastewater from aquaculture ponds is discharged, which not only pollutes the marine environment, but also causes self-pollution of the aquaculture ponds, resulting in a vicious circle. These phenomena seriously restrict the sustainable development of the land-based seawater pond aquaculture industry

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