Industrial circulating seawater aquiculture system

Abstract

The invention relates to a circulating seawater aquiculture system, in particular to an industrial circulating seawater aquiculture system which belongs to the technical field of seafood aquiculture. The industrial circulating seawater aquiculture system comprises culture ponds, a residual bait and excrement separation system, an air floatation system, a buried biological water treatment system, a ground source heat pump system, an elevated tank and an aeration system, wherein the residual bait and excrement separation system is sequentially connected with the culture ponds through pipelines, the air flotation system is used for further separating solid residual microparticles in water, the buried biological water treatment system is used for removing organic pollutants in the water, the ground source heat pump system is used for regulating temperature of the water, the elevated tank is used for sterilizing the water, and the aeration system is used for supplementing air into the water in the culture ponds. By the aid of the industrial circulating seawater aquiculture system, input cost of industrial circulating seawater aquiculture and energy consumption in aquiculture are reduced greatly, utilization rate of seawater resources is increased, emission of CO2, SO2 and the like is avoided, and energy conservation and environment protection are achieved. Aquacultural waste is recycled to achieve turning waste into wealth. The industrial circulating seawater aquiculture system has the advantages that process flow is simple, required water treatment devices are few and the like.

Description

technical field [0001] The invention relates to a seawater circulation aquaculture system, in particular to a factory-like seawater circulation aquaculture system, which belongs to the technical field of seafood cultivation. Background technique [0002] In recent years, due to overfishing and aggravated environmental pollution, marine fishery resources are declining day by day, and seafood is far from meeting market demand. We can only rely on the development of mariculture to alleviate the pressure on seafood demand. my country's mariculture industry is developing rapidly, with increasing species, expanding scale, and increasing intensification. However, there are many problems such as excessive energy consumption and self-pollution of aquaculture, which hinder the sustainable development of the mariculture industry. [0003] Industrial farming is one of the more common farming models in coastal areas, and it is also the most important intensive farming model for maricultu...

AI Technical Summary

Problems solved by technology

At present, the scale of seawater factory aquaculture in my country has reached 7 million m 2 According to the calculation of 5 water changes per day, the daily discharge of aquaculture wastewater is close to 15 million cubic meters, which is equivalent to the storage capacity of a medium-sized reservoir. The discharged wastewater contains a large amount of residual bait and feces, causing marine environmental pollution

Moreover, most of them are pumping underground seawater, which leads to the depletion of groundwater resources, causing backwashing of seawater, salinization of land, encroachment of surface vegetation, and the death of a large number of coastal defense forests.

Although some domestic enterprises have taken measures such as introducing industrial circulating water equipment and technology and establishing recirculating aquaculture systems to address the above problems, most domestic aquaculture enterprises are unable to bear due to the high cost. Aquaculture wastewater is discharged into the sea area in a large-scale way

In addition, the existing circulating aquaculture system needs to be heated in winter and cooled in summer, and the heating and cooling system generally uses boilers and electric power resources, which has high energy consumption. New sources of pollution also limit its large-scale application in seawater factory aquaculture

Images