Novel factory type recirculating aquaculture system

Abstract

The invention relates to a novel factory type recirculating aquaculture system. The system comprises a fishpond (1) which is equipped with a water outlet; the water outlet is communicated with a vertical flowing precipitating device (3); the vertical flowing precipitating device (3) is communicated with a protein separator (4) which is communicated with a regulation pond (5); a first water outlet of the regulation pond (5) is communicated with a water inlet in the upper end of the fishpond (1) through a circulating pump (10). The system further comprises a fermenting tank (7); fungus beneficial for the growth of fish is cultured in the fermenting tank (7); a liquid outlet in the upper part of the fermenting tank is communicated with the regulation pond (5) through a metering pump (9); a second water outlet of the regulation pond (5) is communicated with a liquid inlet in the lower part of the fermenting tank through an ultraviolet sterilizing device (6) and a water supplementing pump (8); a liquid level sensor is arranged in the fermenting tank (7) and used for feeding back a liquid level signal to control the starting / stopping of the water supplementing pump (8); nutritional materials suitable for the growth of fungus can be supplemented regularly into the fermenting tank (7).

Description

technical field [0001] The invention relates to a novel industrial circulating aquaculture system, which belongs to the technical field of aquaculture in circulating water fish ponds. Background technique [0002] Factory circulating water fish farming is an industrialized fishery production method that integrates aquaculture technology, water treatment technology and modern fishery engineering technology, and is an inevitable trend of modern fishery development. The water body of factory farming can be recycled, which reduces the water used for farming and the discharge of sewage. The breeding density is high, the output is high, and the land occupation is small. It is a resource-saving and environment-friendly production method. And add necessary substances, so that the water quality index of aquaculture can meet the needs of normal growth of fish, so that it can be recycled. [0003] Microbial treatment of water quality has been widely used in aquaculture. For example, E...

AI Technical Summary

Problems solved by technology

[0004] The existing fungi that are beneficial to fish growth, such as EM bacteria, are usually purchased directly by aquaculture manufacturers and placed in fish ponds. The cost is relatively high; moreover, EPS with high specific surface area is required Foam plastic particle filler is used as a biofilm carrier, which is relatively costly; the use efficiency of fungi is low; and existing breeding manufacturers often use moving bed biofilters, which must use biological filter materials, resulting in a relatively large volume of moving bed biofilters. large, large footprint

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