Antibiotic wastewater degradation device combining hydrodynamic cavitation and biological method

Abstract

An antibiotic wastewater degradation device combining hydrodynamic cavitation and a biological method is disclosed and comprises a UASB reactor and a hydrodynamic cavitator, a water outlet of the UASBreactor is connected with a wastewater inlet pipe of the hydrodynamic cavitator, the hydrodynamic cavitator comprises two wheel discs and a stator, the stator is a sealed cylinder, the two wheel discs are both arranged in the stator, each wheel disc is fixedly connected to a rotating shaft, the two rotating shafts are installed at the two ends of the stator respectively and extend out of the stator, and the rotating directions of the two wheel discs are opposite. Wheel disc cavitation holes are distributed in the outer wall of the wheel disc, and stator cavitation holes are distributed in theinner wall of the stator. One end of the stator is provided with a wastewater inlet pipe, and the other end is provided with a liquid outlet pipe, and the cavitation holes form a current limiting structure under a tiny gap between the stator and the rotor, so that the cavitation phenomenon is enhanced. The device degrades antibiotic wastewater by coupling hydraulic power and a biological method,and is efficient, good in magnification, large in treatment capacity, capable of continuously operating, low in cost and free of secondary pollution.

Description

technical field [0001] The invention relates to a device for degrading antibiotic wastewater by combining hydraulic cavitation and biological methods, and belongs to the technical field of antibiotic wastewater treatment. Background technique [0002] There are many defects in the production process of antibiotic raw materials, such as low utilization rate of raw materials, low purity of extracted antibiotics, and high antibiotic residues in discharged wastewater, which eventually make antibiotic production wastewater complex in composition, high in COD and SS, and deep in color. And it has a pungent smell, which makes it difficult to treat wastewater. With the continuous development of the antibiotic pharmaceutical industry, the total amount of antibiotic wastewater discharge is also increasing year by year, and the effective treatment of antibiotic wastewater has become the focus and focus of water pollution prevention and control research. [0003] In recent years, the p...

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Problems solved by technology

Its mechanical structure adopts a spherical cavity to produce cavitation effect, and the overall mass of the device is large, and the energy consumption is high

[0011] Although the above-mentioned CN207468248U, WO2012077889A1, CN104613661A, etc. proposed rotary cavitators, they all belonged to simple cavitation generating devices, did not explain the degradation function of antibiotic wastewater, and did not couple other physical and chemical strengthening methods

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