Outdoor circulating aquaculture system

Abstract

The invention relates to an outdoor circulating aquaculture system, which comprises a plastic greenhouse. A culture pond is arranged in the plastic greenhouse. The culture pond is connected to a water collection well through an underground pipeline. Barrier filter tank, the second barrier filter tank is equipped with multiple inclined filter plates, the second barrier filter tank is connected to the first-level biological filter tank, the first-level biological filter tank is connected to the second-level biological filter tank, and the second-level biological filter tank is connected to the A clear water pool, the clear water pool is connected to the breeding pond. The aquaculture water in the aquaculture pond is purified through the first-level physical sedimentation tank, the second-level fence filter, the first-level biofilter and the second-level biofilter in sequence, and finally clear water is obtained, and new aquaculture water is provided for the aquaculture pond. Therefore, outdoor The recirculating aquaculture system can recycle and fully utilize resources and reduce environmental pollution; and the aquaculture pond is set in an outdoor plastic greenhouse, which not only has the functions of heat preservation and temperature control, but also reduces the cost of building an outdoor recirculating aquaculture system.

Description

technical field [0001] The invention relates to an outdoor circulating aquaculture system. Background technique [0002] The nutrients input by farming cannot be fully utilized by fish. As the degree of intensification increases, wastes such as ammonia nitrogen, nitrite, suspended solids, dissolved organic matter and carbon dioxide are produced in large quantities in water bodies. Under the traditional breeding mode, these wastes accumulate in the breeding water without treatment, or are directly discharged, leading to problems such as fish poisoning, eutrophication and food safety, and directly restricting the development of the scale of farming. Recirculating aquaculture is to treat the aquaculture water through the water treatment system, and control the ammonia nitrogen, suspended solids, dissolved organic matter, carbon dioxide and other metabolic wastes produced in the aquaculture process and then re-enter the aquaculture system to achieve the recycling of aquaculture...

AI Technical Summary

Problems solved by technology

[0003] At present, there are two main types of recirculating aquaculture systems in my country, one is an upgrade of the traditional flowing water aquaculture system, which has a simpler structure and lower cost, but its breeding density and circulation effect are relatively poor; the other has relatively complete Water treatment facilities have good water treatment capacity, but most of them are indoor systems, with high construction costs, high operating costs, and high requirements for management levels

It has high requirements for the required funds, venues and personnel, which is not in line with our current aquaculture status quo

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