Circulating aquaculture device and method

Abstract

The invention belongs to the technical field of aquaculture, and relates to a circulating aquaculture device and method. A drain outlet in the bottom part of a self-purification circulating aquaculture pool is communicated with an ecological biology clear water reservoir through a discharge pipe; an artificial floating island for planting aquatic organisms is arranged on a water body held in the ecological biology clear water reservoir; sand is paved on the bottom part of the ecological biology clear water reservoir; an underground soil layer under the sand forms a soil layer microorganism filter bed; an opening vertical shaft is arranged in the center of the ecological biology clear water reservoir; a porous filter pipe and a submerged pump are arranged on the lower end of the opening vertical shaft; the submerged pump is in butt joint with a water intake device; a Venturi oxygenation pipe sleeves the water intake device. According to the method, through interaction of self characteristics of the aquaculture water body and characteristics of microbial flora in the soil layer, the water body can be recycled, purified and reused, the investment and operation cost is low, the operation mode is simple and convenient, the waste discharge amount is almost zero, the culture effect is good, the density is high, and the environment friendliness, the safety and the innocuity are realized.

Description

Technical field: [0001] The invention belongs to the technical field of aquaculture, and relates to a circulating aquaculture device and method, which can realize the circulating aquaculture without using facilities such as sedimentation tanks, filtering devices, protein separators and ultraviolet sterilizers. Background technique: [0002] Aquaculture is a production activity of breeding, cultivating and harvesting aquatic animals and plants under human control. my country's aquaculture industry is relatively developed, and the total output of freshwater aquaculture has been ranking first in the world for many years; but it also faces serious challenges: on the one hand, the overall ecological environment of water areas It is deteriorating. In recent years, catastrophic events caused by environmental pollution in water areas, such as blue-green algae outbreaks, the spread of enteromorpha, and aggravated fish diseases, have occurred frequently, causing great harm to the aquacu...

AI Technical Summary

Problems solved by technology

[0003] As we all know, the culprit of the deterioration of water quality in aquaculture ponds is the organic solid deposits at the bottom of the pond, because many residual bait, feces, and the corpses of protozoa and microalgae are deposited on the bottom of the pond during the cultivation process, and they are affected by the action of microorganisms. Many harmful protozoa and bacteria are bred under corruption and deterioration. At the same time, a large amount of harmful gases and substances are dissolved in the water. A large number of water changes or sedimentation and filtration are carried out, but it is difficult to fundamentally solve the problem. Therefore, the present invention designs a device and method for a circulating aquaculture model, which is especially suitable for the development of aquaculture in areas with poor water resources and land shortages. Has good application prospects and economic value

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