Circulating water device for shrimp aquaculture and operating method thereof

Abstract

The invention discloses a circulating water device for shrimp aquaculture as well as an operating method thereof. The device comprises an aquaculture water tank, a sedimentation tank, a floating-type filter tank and a water pump unit, wherein the aquaculture water tank is provided with a first water outlet; the sedimentation tank can be used for solid-liquid separation; the floating-type filter tank is filled with a filter material and floats on the water level of the aquaculture water tank; the water pump unit can extract water in the sedimentation tank to the floating-type filter tank; the sedimentation tank is provided with a first water inlet and a sewage exhaust port; the first water inlet is communicated with a first water outlet. Because water in the aquaculture water tank is circulated, the water exchange quantity is reduced; the water temperature change is tiny; the shrimp survival rate can be improved, and the yield can be improved; the water in the aquaculture water tank is circulated to use, the pollution of the surround sea areas is reduced, and the ecological environment is protected; meanwhile, pollutants exhausted from the sewage exhaust port can be treated further, and fertilizers can be abstracted and the like; the circulating water device for shrimp aquaculture and the operating method thereof lower the cost, and are energy-saving and environment-friendly. The device is especially suitable for high-density shrimp aquaculture.

Description

technical field [0001] The invention relates to the field of bioengineering, in particular to a circulating water device for prawn breeding and a working method thereof. Background technique [0002] A large number of pollutants will be produced in the process of shrimp farming, such as: suspended particles, aquatic phytoplankton and soluble nutrients such as nitrogen and phosphorus, as well as complex organic substances such as various refractory antibiotics and Chinese herbal medicines used in the process of shrimp farming and residues of heavy metal disinfectants, etc. If the water change time is prolonged, the water quality in the shrimp pond will deteriorate, and the survival rate of prawns will decrease; if new water is injected frequently, or the amount of water changes increases, the water temperature in the pond will change significantly, especially in the winter season, the survival rate of prawns will decrease, and the production of prawns will decrease. At the s...

AI Technical Summary

Problems solved by technology

If the water change time is prolonged, the water quality in the shrimp pond will deteriorate, and the survival rate of prawns will decrease; if new water is injected frequently, or the amount of water changes increases, the water temperature in the pond will change significantly, especially in the winter season, the survival rate of prawns will decrease, and the production of prawns will decrease. At the same time, almost untreated shrimp farming wastewater is directly discharged into the surrounding sea area, greatly exceeding the self-purification capacity of the sea area, accelerating the eutrophication of the surrounding sea area, and causing red tides in severe cases. Improve

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