Iron-carbon-base artificial wetland purification system for removing florfenicol in aquaculture

Abstract

The invention belongs to the technical field of water treatment, and relates to an iron-carbon-base artificial wetland purification system for removing florfenicol in aquaculture. The system comprises a water inflow area, an iron-carbon microelectrolysis area, a wetland purification area and a water outflow area in sequence. The iron-carbon microelectrolysis area is filled with iron-carbon filler, and an aeration device is arranged below the iron-carbon filler. The wetland purification area comprises a lower filler layer and an upper soil covering layer, the filler layer comprises a gravel filler segment close to the iron-carbon microelectrolysis area and a zeolite filler segment close to the water outflow area, and wetland plants are planted on the soil covering layer. Compared with the prior art, the iron-carbon microelectrolysis area is additionally arranged, antibiotics in aquatic water are removed under the physical, chemical and biological interaction, and meanwhile other types of pollutants are removed as well; the system has the advantages of being low in construction cost, good in purification effect, capable of bringing good ecological benefits, easy and convenient to operate, stable in water outflow and the like, can be applied to purification and cyclic utilization of aquatic water and has great economical and environmental benefits.

Description

technical field [0001] The invention relates to an artificial wetland purification system, in particular to an iron-carbon-based artificial wetland purification system for removing fluthiamphenicol from aquaculture water. Background technique [0002] At present, my country's aquaculture industry is developing rapidly. In order to prevent and treat fish diseases and increase the output of aquatic products, large-scale aquaculture often requires the use of a large amount of antibiotics. According to statistics, the annual consumption of thiamphenicol and fluthiamphenicol in my country is about 400 tons. The extensive use of antibiotics ensures the rapid and healthy growth of aquaculture products, but it inevitably causes antibiotic residues in the water environment, which may cause a variety of hazards, such as the induction of antibiotic resistance genes by selective pressure on bacteria, and the impact on non-target organisms. Produce poison, cause health threat to consume...

AI Technical Summary

Problems solved by technology

[0003] If the aquaculture water containing residual antibiotics is discharged without treatment, it will further aggravate the pollution of surrounding seas, rivers, lakes and other waters, and cause harm to the water environment. However, domestic and foreign experts have not yet found a simple and low-cost antibiotic removal process.

Conventional antibiotic purification devices are mostly aimed at ultra-high concentration sewage, the process is complicated and the cost is high, and the removal of antibiotics from aquaculture water is not obvious

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