Pond food field area contamination drainage system with back flushing function

Abstract

The invention discloses a pond food field area contamination drainage system with the back flushing function. The system is characterized in that the contamination drainage system is composed of a pond bottom contamination drainage system and a back flushing system. When the contamination drainage system is used for feeding in a food field area, contamination is drained every other 3-5 days. According to the specific method, firstly, a contamination drainage valve is opened for draining contamination, then, the contamination drainage valve is closed, a back flushing pump is started, contamination drainage is performed again after the back flushing pump is turned off, and organic matter at the pond bottom of the food field area can be basically drained through 2-3 times of back flushing contamination drainage. According to the system, contamination drainage is thorough, accumulation of the organic matter at the bottom of the pond food field area is little, time is short every time contamination drainage is performed, fish feeding is not affected, good pond water quality can be kept, and the yield and the benefits of pond cultivation are increased; back flushing contamination drainage is continuously performed in the cultivation period, sludge at the pond bottom can be kept little for a long time, the effective water body of a pond is large, it is beneficial to yield increase, and besides, the pond does not need frequent large-scale dredging, and production cost can be reduced.

Description

technical field [0001] The invention relates to the field of fishery production, in particular to a backflushing sewage discharge system for pond food courts. Background technique [0002] In pond culture, the area with the most pollution and the most organic matter accumulation is often the food field area where the pond feed is fed. In this area, the accumulation of residual bait, the accumulation of fish feces, and the accumulation of other organic matter make fish feed The farm area has become the center of the pollution source. In some ponds whose bottom has not been cleared for many years, the accumulation of organic matter in the food farm area often reaches more than 1 meter, which becomes an unstable area that is prone to hypoxia and changes. The accumulation of a large amount of organic matter not only makes the pond shallower , the effective water body is reduced, and a large amount of dissolved oxygen in the water area is consumed, which reduces the production a...

AI Technical Summary

Problems solved by technology

[0002] In pond culture, the area with the most pollution and the most organic matter accumulation is often the food field area where the pond feed is fed. In this area, the accumulation of residual bait, the accumulation of fish feces, and the accumulation of other organic matter make fish feed The farm area has become the center of the pollution source. In some ponds whose bottom has not been cleared for many years, the accumulation of organic matter in the food farm area often reaches more than 1 meter, which becomes an unstable area that is prone to hypoxia and changes. The accumulation of a large amount of organic matter not only makes the pond shallower , the effective water body is reduced, and a large amount of dissolved oxygen in the water area is consumed, which reduces the production and benefits of pond culture, and seriously causes fish to float or even flood the pond, causing huge losses to aquaculture production

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