Freshwater shrimp culture tail water treatment system

Abstract

The invention discloses a freshwater shrimp culture tail water treatment system for treatment of the tail water of a culture pond. The freshwater shrimp culture tail water treatment system comprises:a pair of ecological ditches for preliminary purification of culture tail water, a sedimentation tank for sedimentation to remove granular solids in the culture tail water subjected to preliminary purification in the ecological ditches, a filtration dam for filtering solid particles in the culture tail water subjected to sedimentation treatment in the sedimentation tank, an aeration tank for aeration treatment of the culture tail water subjected to filtration treatment by the filtration dam, a biological purification tank utilizing fungi and animals to remove harmful substances, algae and thelike in the culture tail water subjected to aeration treatment in the aeration tank, and a constructed wetland for effective degradation of pollutants and harmful substances in the culture tail watersubjected to purification in the biological purification tank. The freshwater shrimp culture tail water treatment system provided by the invention can effectively remove solid particle impurities in culture tail water, lower the dissolved nitrogen and phosphorus content, and degrade pollutants and harmful substances. The treated culture tail water can reach the culture tail water discharge standard, and can finally be discharged into external rivers or recycle to culture ponds.

Description

Technical field

[0001] The invention belongs to the technical field of fishery breeding, and specifically relates to a tail water treatment system for blue shrimp breeding. Background technique

[0002] In the process of aquaculture, the water body will not only accumulate a large amount of toxic and harmful organic substances such as residual bait, excrement, and biological corpses, but also accumulate a large amount of toxic and harmful inorganic substances, such as ammonia nitrogen, hydrogen sulfide, and nitrous acid. In view of the above reasons, we need to regularly discharge tail water containing toxic and harmful substances in the process of prawn pond culture to ensure the healthy growth of the cultured objects. In most cases, the tail water is simply discharged through the drainage ditch, which will cause greater pollution. Some farms use bio-balls or filters to filter and treat the tail water, but this method can only filter the tail water. The large particles of impur...

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