A method for treating aquaculture tail water by simultaneously removing pollutants and antibiotics

Through the combination of a regulating tank, an integrated anoxic aerobic biofilm reactor and a lanthanum-modified glass pumice adsorption device, the problems of large space occupation and poor removal effect in aquaculture effluent treatment are solved, and efficient and simultaneous removal of pollutants and antibiotics is achieved, achieving the effect of meeting emission standards.

CN119612838BActive Publication Date: 2025-09-23JIANGNAN UNIV +1
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Patent Information

Application Number
CN202411878121.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-09-23
Estimated Expiration
2044-12-19

AI Technical Summary

Technical Problem

Existing aquaculture effluent treatment technologies have the problems of large footprint, unstable treatment effects, and poor removal of phosphorus and antibiotics. Adsorption phosphorus removal technology has a low adsorption rate and insufficient adsorption capacity, making it difficult to meet the requirements of deep phosphorus removal.

Method used

A regulating tank is combined with an integrated anoxic aerobic biofilm reactor and a lanthanum-modified glass pumice adsorption device. Through the biological removal and adsorption coupling technology, the integrated anoxic aerobic biofilm reactor is used to remove nitrogen and carbon, and the lanthanum-modified glass pumice adsorption device is used to remove phosphorus and antibiotics, and ozone aeration is combined to achieve synchronous removal.

Benefits of technology

It has achieved efficient removal of pollutants and antibiotics in aquaculture effluent, reduced floor space, improved treatment effects, met emission standards, and the antibiotic removal rate reached over 99%.

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Abstract

The present invention discloses a method for treating aquaculture tailwater for synchronously removing pollutants and antibiotics, and belongs to the technical field of aquaculture tailwater treatment. The present invention utilizes a regulating tank to carry out precipitation pretreatment of aquaculture tailwater, and then uses an integrated anoxic aerobic biofilm reactor to biologically remove organic matter, ammonia nitrogen and total nitrogen in aquaculture tailwater, and then utilizes an adsorption and ozone coupling device to remove total phosphorus and antibiotics in aquaculture tailwater, and the effluent water quality can meet the first-level standard of freshwater receiving water in the "Jiangsu Province Pond Aquaculture Tailwater Discharge Standard" (DB32 / 4043-2021), and the standard discharge of aquaculture tailwater is achieved, while the antibiotic removal rate is greater than 90%. This treatment method realizes the synchronous removal of pollutants and antibiotics in aquaculture tailwater, and has good application prospects.
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