Biological filter device of circulation shallow water aquaculture system, and control method thereof

Abstract

The invention discloses a biological filter device of a circulation shallow water aquaculture system. The biological filter device of the circulation shallow water aquaculture system comprises a scourtrough, a filter mechanism and an aquaculture pond, wherein the scour trough and the aquaculture pond are arranged adjacently; the filter mechanism comprises a support frame, a rolling shaft and fourwing-shaped net cages; two ends of the rolling shaft is straddle mounted on the scour trough and the aquaculture pond through the support frame; the wing-shaped net cages are crosswise connected ontothe rolling shaft and can slide in an axial direction; water in the aquaculture pond has a certain flow speed and passes through the wing-shaped net cages with aquatic plants capable of absorbing ammonia nitrogen. A control method of the biological filter device is carried out in the biological filter device. According to the biological filter device of the circulation shallow water aquaculture system, and the control method thereof provided by the invention, through the wing-shaped net cages with the built-in aquatic plants, ammonia nitrogen can be absorbed continuously, and impurities are filtered, so that the oxygen content is improved; through an ammonia nitrogen detection sensor, the ammonia nitrogen content in water can be continuously obtained to control the rolling shaft to rotate, the ammonia nitrogen content is controlled accurately, and the device is suitable for cleaning different ammonia nitrogen pollution degrees of various shallow water aquaculture.

Description

technical field [0001] The present invention relates to a biological filter device and its control method, in particular to a biological filter device and its control method of a circulating shallow water aquaculture system, which belongs to the technical field of fishery wastewater treatment, and is especially suitable for solving the problem of fish bait and excretion. Ammonia nitrogen pollution caused by substances. Background technique [0002] With the continuous development of the economy, the development of modern fishery is very important, and it is more and more closely related to people's life. The continuous reform of fishery structure has created economic benefits but brought a series of environmental problems at the same time. The traditional aquaculture industry is facing the deterioration of the water environment, outdated breeding facilities, and frequent breeding diseases, resulting in an increase in hidden dangers in the quality and safety of aquatic produ...

AI Technical Summary

Problems solved by technology

[0005] Obviously, it is very important to control the ammonia nitrogen content in aquaculture water and filter large particles of impurities in real time. However, some current filtration devices can only filter larger particles in water or the structures used to filter ammonia nitrogen substances are complex, cannot be recycled, and require frequent maintenance and high costs. Therefore, people are eager to develop a simple structure, easy to maintain, and reusable biological filtration device for circulating shallow water aquaculture system, which can continuously absorb ammonia nitrogen and filter ordinary large particles of impurities

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