Circuit-type fishpond breeding system integrating circulating water treatment process

Abstract

The invention relates to a circuit-type fishpond breeding system integrating a circulating water treatment process. The circuit-type fishpond breeding system integrating the circulating water treatment process comprises a fishpond shaped like an annular runway, and sewage treatment systems arranged in an inner ring of the fishpond. Each sewage treatment system comprises a vertical flow type solid-liquid separator (1), wherein a sewage discharging groove (5) perpendicular to the water flow direction is formed in the bottom of the fishpond and communicated with an inlet of the vertical flow type solid-liquid separator (1), an outlet of the vertical flow type solid-liquid separator (1) is communicated with a micro-filtration machine (2), outlet water of the micro-filtration machine (2) adopts a water pump (3) and a water lifting pipe (4) for water lifting and is injected into a biological filter (6), the biological filter (6) is separated from an aeration oxygenation pond (8) through a separation plate and is communicated with the aeration oxygenation pond (8) through a through hole in the lower portion of the separation plate, a water falling pipe (7) is arranged on the lateral wall of the aeration oxygenation pond (8) and communicated with the fishpond, and the water outlet direction at the bottom of the water falling pipe (7) is the same as the water flow direction of the fishpond. The number of the sewage treatment systems is two, and the sewage treatment systems are evenly distributed in the inner ring of the annular fishpond in a central symmetry mode.

Description

technical field [0001] The invention relates to a loop-type fish pond culture system, in particular to a loop-type fish pond culture system integrated with a circulating water treatment process. Background technique [0002] As a habitat for fish farming, fish ponds have more functions than this in industrialized closed circulation aquaculture. They also have the functions of collecting sewage and discharging organic matter such as residual bait and feces in time; timely discharging water bodies with low dissolved oxygen content or Increase oxygen in time; discharge water with high carbon dioxide and high ammonia nitrogen content to relevant water treatment equipment or remove it in time; facilitate grading, fishing, feeding and other operations. [0003] Runway fishponds are divided into straight and circular fishponds, which are often used for salmon and trout farming. Compared with round ponds, track-type fish ponds have the advantages of high water surface utilization r...

AI Technical Summary

Problems solved by technology

[0004] The technical problems to be solved by the present invention are: the existing ring-type fish ponds have low self-purification ability; the purification process needs to consume a large amount of labor; the water body environment is far below the physiological and ecological needs of fish health, muscle and breathing; water body exchange The rate is high, and a large amount of water with good water quality is consumed to produce a large amount of aquaculture sewage, which has brought serious environmental impact

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