Method for treating tail water of aquaculture pond

Abstract

The invention belongs to the technical field of aquaculture, and discloses an aquaculture pond tail water treatment method, which comprises the following steps: carrying out primary filtration treatment on tail water, then carrying out precipitation treatment to precipitate sludge and excrement in the tail water, and then carrying out secondary filtration treatment to obtain a first water phase and a first solid phase; step 2, performing anaerobic culture domestication on the first solid phase to obtain a second solid phase; mixing the second solid phase with the first water phase, and sequentially carrying out denitrification and aeration treatment so as to remove ammonia nitrogen in the tail water and accelerate oxygenolysis of organic matters at the same time; and step 3, adding a treating agent and an adsorbent into the tail water subjected to aeration treatment, uniformly mixing, and reacting for 8-16 hours, so that the tail water is purified in the tail water, and the purified tail water is obtained. Physical treatment, chemical treatment, microbiological treatment and agricultural waste are combined, the aquaculture tail water treatment effect is good, the operation cost is low, and application and popularization are facilitated.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for treating tail water of an aquaculture pond. Background technique [0002] With the development of my country's economy and society, the demand for aquatic products is also increasing, which promotes the development of the aquaculture industry. The key to aquaculture is the aquaculture water environment, which is not only related to the quality, safety and economic benefits of aquatic products, but also to the problem of aquaculture tailwater pollution caused by the aquaculture industry. [0003] Especially in the most common pond high-density culture method in China, a large amount of residual bait and feces are discharged into the water body, and the pollution of aquaculture tail water is becoming more and more serious. Pollutants such as ammonia nitrogen, nitrite, organic matter, phosphorus and other pollutants will not only deteriorate the environment of aqua...

AI Technical Summary

Problems solved by technology

[0003] Especially in my country's most common pond high-density farming method, a large amount of residual bait and feces are discharged into the water body, and the pollution of aquaculture tail water is becoming more and more serious. If the aquaculture tail water is not treated in a timely and effective manner, the main aquaculture tail water will be Pollutants such as ammonia nitrogen, nitrite, organic matter, phosphorus and other pollutants will not only deteriorate the environment of aquaculture waters, but also lead to a decline in the quality and output of aquaculture products

[0004] The existing technology mainly uses aeration, sedimentation, filtration and other means to remove the metabolites and bait residues of heavy aquatic products in the aquaculture water, so as to realize the treatment of visible pollutants in the aquaculture water, so that the water quality can be purified, but it cannot effectively Purify the aquaculture water so that it can be recycled and reused

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