A low-carbon high-efficiency pond circulating water aquaculture system

Abstract

The invention discloses a low-carbon high-efficiency pond recirculating water aquiculture system. The low-carbon high-efficiency pond recirculating water aquiculture system comprises a reservoir, a fish pond and a fish manure pit. The reservoir, the fish pond and the fish manure pit are sequentially connected, a dissolved-oxygen machine is arranged in the reservoir, the dissolved-oxygen machine is connected with the inner wall of the bottom of the reservoir through a fixed rod, the inner wall of one side, of the reservoir, being close to the fish pond is provided with a jet pump, a water inlet of the jet pump is connected with a water inlet pipe, the water inlet pipe extends to the bottom of the reservoir, the top of the reservoir is provided with an inclined baffle plate, the baffle plate is arranged above the jet pump, and the outer wall of one side, of the baffle plate, being far from the reservoir is fixed with a water inlet pipe. According to the invention, the dissolved oxygen amount of water in the fish pond can be increased, the activity of fry is improved, resistance to bacteria and diseases is improved, fry manure and forage residue can slip into the fish manure pit, bacteria in the fish pond can be prevented from breeding in quantity, clear water in the fish manure pit can be recycled, the water resource is saved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a low-carbon high-efficiency pond circulating water aquaculture system. Background technique [0002] Pond culture is one of the main forms of aquaculture. Since the 1970s in China, fish pond culture, shrimp and crab pond culture, and aquaculture fry pond cultivation have flourished successively in China. The aquaculture water body is about 10 billion cubic meters , Such a large scale of farming has made great contributions to the development of my country's aquatic economy. [0003] Existing aquaculture ponds are mainly rectangular in shape with a uniform water surface, and the inlet and outlet are arranged at one end of the pond or separately at both ends of the pond. Except for a very small number of aquaculture ponds that are equipped with water stirring and aeration machines, The vast majority of ponds only have obvious water flow channels near the inlet and outlet, and ...

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Problems solved by technology

[0003] Existing aquaculture ponds are mainly rectangular in shape with a uniform water surface, and the inlet and outlet are arranged at one end of the pond or separately at both ends of the pond. Except for a very small number of aquaculture ponds that are equipped with water stirring and aeration machines, The vast majority of ponds only have obvious water flow channels near the inlet and outlet, and most of the water exchange rate in other places is very low. The corners of the pond far away from the inlet and outlet often become dead corners, the water quality in the pond is not uniform, and the local area is often hypoxic state, the cultured organisms cannot get a suitable growth environment

[0004] In the existing pond culture, an aerator is installed in the pond to increase the dissolved oxygen content in the water. When the aerator rotates, it is easy to collide with the fry swimming at high speed, causing injury and death of the fry, and when the aerator is working, it is easy to Frighten the fry, reduce the feeding of the fry, the feces of the fry and the residual feed are easy to breed bacteria and parasites, resulting in frequent diseases of the fry, slow production speed, and even a decrease in the breeding capacity and low production efficiency

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