The factory aquaponic culture pond

The factory aquaponic culture pond is one of the objective and necessary conditions for the survival and growth of fish.

The design of a fish pond with excellent performance involves multidisciplinary knowledge reserves such as fish behavior, fish physiology, fluid dynamics, and water supply and drainage design.

Running water fish farming is a comprehensive production subject affected by many factors (such as water flow characteristics, water quality, water temperature, fish species, feed, etc.).

It involves the research content of several professions. The flow characteristics in flowing water fish ponds is one of the more important research topics. It is directly related to the optimal flow pattern for fish growth and is a prerequisite for high-density breeding in flowing water fish ponds.

To give a simple example, in a flowing fish pond, the water flow velocity should be evenly distributed (lateral distribution and vertical distribution), the water body can be completely exchanged (there is no dead water area), and the sewage discharge effect should be good. In this way, good and uniform water flow conditions can be formed in the flowing fish pond, so that all the water bodies in the fish pond can be used to raise fish, and the fish are basically in a state of inactivity in the fish pond, increasing the utilization rate of the water body and the conversion rate of feed. , Create good engineering conditions for high-yield and high-efficiency breeding.

The most basic design requirements must be met:

1. Meet the needs of rapid and healthy growth of cultured species;

2. It has a good function of collecting and discharging sewage;

3. High land utilization rate and low construction cost;

Generally speaking, there are many shapes of fish ponds, such as round, rectangular, square, octagonal, long oval, ring type, etc. The materials include concrete, brick-concrete, fiberglass, etc.; the functions should also be divided to a certain extent. For example, according to the complete breeding cycle, they can be divided into isolation and quarantine ponds, fry breeding ponds, adult fish breeding ponds, broodstock ponds and adult fish sales hanging ponds. . There are different advantages and disadvantages for several common fish pond design shapes. For example, circular fish ponds are one of the best fish ponds suitable for aquaponics systems. The circular design can easily form a stable flow field in the water body with no dead ends. In addition, the circular structure is stable and not easy to deform; but the disadvantage is low land utilization. ; If the system does not consider the floor space, the diameter generally ranges from 4-14m. Considering the sewage discharge at the bottom of the center of the pool, the diameter-to-depth ratio is not likely to be too high, often between 3:1-5:1.

In addition, in order to save floor space, a type of nearly circular fish ponds has gradually emerged, such as square-cut corners, square-cut circles, polygons, etc., which have the advantages of rectangular ponds and round ponds, and have high land utilization rates.