Energy-saving factorized fully-sealed seawater circulation culture process method and special device thereof

Abstract

The invention relates to an energy-saving factorized fully-sealed seawater circulation culture process method and a special device of the process method. Water in a culture pool is subjected to eddy current separation and solid-liquid separation and then enters a buffer regulation pool, the water enters two stages of biological purification pools: the front biological purification pool and the back biological purification pool after air floatation reaction purification, a biological filter pool self maintenance inoculation avoidance is carried out, and backflow water is respectively led out from water outlet ends of the two stages of biological purification pools and enters a circuit system. Rest water flown out from the back stage biological purification pool is subjected to the third-stage biological filtering, is then subjected to disinfection treatment, enters a water quality terminal optimization pool and finally flows to the culture pool to form a fully sealed circulation water culture system. The heat loss is avoided to a great degree through the adopted circulation water culture, so the water change (circulation) quantity can be increased, and the water freshness is improved. Compared with the traditional water flowing culture process, the process method has the advantages that the water and the energy are saved, and the discharge quantity of waste water and waste gas is reduced.

Description

technical field [0001] The invention relates to the technical field of seawater fish industrialized breeding facilities and circulating water treatment, in particular to an energy-saving industrial fully enclosed seawater circulating aquaculture system process method. The invention also relates to a special device for implementing said method. Background technique [0002] As a sunrise industry of Chinese aquaculture, high-quality marine fish (grouper, tongue sole, etc.) aquaculture industry has the outstanding advantages of high return on investment and great development potential. However, in recent years, high-quality marine fish (grouper, semi-smooth tongue sole, etc.) Emission reduction has become an urgent social and market demand. [0003] The winter aquaculture methods currently used in northern my country are mainly workshop aquaculture, plastic greenhouse aquaculture and heat preservation measures, etc. Boiler heating of seawater, extraction of underground seawa...

AI Technical Summary

Problems solved by technology

Boiler seawater heating and continuous water exchange and discharge waste a lot of energy, resulting in increased breeding costs and pollution of a large amount of breeding wastewater

For these reasons, the daily water exchange volume of the traditional breeding method is only 30-50% of the total breeding water body, mainly due to the high energy consumption, because the cost of heating up the boiler is too high

[0004] On the other hand, according to the biological characteristics of high-quality sea fish (grouper, semi-smooth tongue sole, etc.) and the breeding habits of our country, chilled and fresh baits are mainly used The breeding method has the advantages of fast growth and low cost, but also has the disadvantages of poor water quality and difficult treatment. For this reason, higher requirements are put forward for the recirculating aquaculture system.

Images