Water circulation system for aquaculture

Abstract

The present invention belongs to the technical field of aquaculture and discloses a water circulation system for aquaculture. The water circulation system for the aquaculture comprises first aquaculture ponds, a sewage collection and sedimentation pond, a dehydration device, a first sterilization and disinfection device, second aquaculture ponds, plant planting fields, a water treatment device anda water supply pond; bottom parts of the first aquaculture ponds and the second aquaculture ponds are provided with sewage discharge assemblies, the first aquaculture ponds and the second aquacultureponds are connected with the sewage collection and sedimentation pond through the sewage discharge assemblies, a bottom part of the sewage collection and sedimentation pond is connected with the second aquaculture pond through the dehydration device, a bottom part of the sewage collection and sedimentation pond is connected with the plant planting fields through the first sterilization and disinfection device, an upper part of the sewage collection and sedimentation pond is connected with the water supply pond through the water treatment device, and the water supply pond is connected with thefirst aquaculture ponds and the second aquaculture ponds; and the first aquaculture ponds are fish or shrimp aquaculture ponds and the second aquaculture ponds are sea cucumber aquaculture ponds. Thewater circulation system realizes cyclic utilization of aquaculture water and simultaneously makes full use of resources.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to a water circulation system for aquaculture. Background technique [0002] Facility fishery is an intensive high-density breeding industry developed in the middle of the 20th century. It integrates modern engineering, electromechanical, biology, environmental protection, feed science and other disciplines. The good water body and environmental conditions for fish growth and reproduction place fish farming in a state of artificial control, and use scientific intensive farming techniques to achieve stable and high yields of fish throughout the year. Because it is based on environmental protection and closely combines industry and environment, it has broad development prospects. [0003] In the past two decades, in order to save construction costs and improve land utilization, pond aquaculture facilities in my country have generally adopted the method of "inlet and d...

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Problems solved by technology

[0003] In the past two decades, in order to save construction costs and improve land utilization, pond aquaculture facilities in my country have generally adopted the method of "inlet and drainage channels + aquaculture ponds" to construct ponds, mainly relying on water quality, aerators, chemicals and probiotics However, this method has poor ability to resist changes in environmental water quality and water pollution accidents, and the aquaculture system itself still has problems such as water quality degradation and pond aging, and the loss of nutrient-rich substances in the aquaculture process The discharge also exacerbates the increasingly fragile natural water purification capacity, the prevalence of diseases and the frequent occurrence of drug residues

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