Device for degrading antibiotics by combining hydrodynamic cavitation with ultrasonic cavitation and photolysis technology

Abstract

A device for degrading antibiotics by combining hydrodynamic cavitation with ultrasonic cavitation and photolysis technology comprises a hydrodynamic cavitation and ultrasonic cavitation combined reaction chamber and a photolysis reaction chamber, and the two reaction chambers are connected by a connecting pipe with a control valve; a rotor is arranged in the hydrodynamic cavitation and ultrasoniccavitation combined reaction chamber; the rotor comprises a central cylinder and a satellite body; the satellite bodies are distributed on the periphery of the center cylinder and connected to the center cylinder. The central cylinder body is fixed on the rotating shaft; cavitation holes are uniformly distributed in the inner wall of the hydrodynamic cavitation and ultrasonic cavitation combinedreaction chamber and the outer surfaces of the central cylinder and the satellite body; an ultrasonic generation device is arranged on the inner wall of the hydrodynamic cavitation and ultrasonic cavitation combined reaction chamber, a water inlet pipe is arranged at the upper part of the hydrodynamic cavitation and ultrasonic cavitation combined reaction chamber, and an ultraviolet lamp is arranged in the photolysis reaction chamber. The device adopts hydrodynamic cavitation and ultrasonic cavitation to degrade the antibiotic wastewater, can realize repeated cyclic treatment, has a good treatment effect, does not generate secondary pollution, and ensures the optimal cavitation effect.

Description

technical field [0001] The invention relates to a device for treating antibiotic wastewater by using hydraulic cavitation combined with ultrasonic cavitation and photolysis technology, and belongs to the technical field of antibiotic wastewater treatment. Background technique [0002] At this stage, conventional methods for degrading antibiotics include photolysis, biodegradation, catalyst degradation, etc. The degradation rates of different antibiotics vary greatly, and there are common problems such as low efficiency. Hydropower cavitation technology is a new type of environmental pollutant reduction technology. It has the characteristics of simple method for treating organic pollutants, no secondary pollutants, and wide application range. It has broad development potential and application prospects. The hydroxyl radical OH produced in the cavitation process can effectively degrade organic pollutants in water, and has the advantages of high chemical stability, harmless to ...

AI Technical Summary

Problems solved by technology

[0003] However, it is difficult to completely and effectively degrade antibiotics by a single process

[0004] mentioned in CN106565008A that the use of graphene to catalyze the oxidation of ozone combined process to efficiently degrade antibiotics, but the four mainstream methods of graphene preparation (micromechanical stripping method, epitaxial growth method , chemical vapor deposition CVD method and graphite oxide reduction method) have problems such as high cost of manufacturing equipment and inability to be widely used

No single method can degrade antibiotic wastewater more effectively and fully

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