Photocatalytic oxidation device for in-situ culture or/and biofilm killing as well as use method and application of photocatalytic oxidation device

Abstract

The invention belongs to the technical field of photocatalytic oxidation, and discloses a photocatalytic oxidation device for in-situ culture or / and biofilm killing as well as a use method and application of the photocatalytic oxidation device. The photocatalytic oxidation device comprises a multifunctional threaded bottle, a multi-channel peristaltic pump, a biofilm culture reactor and an ultraviolet lamp; the multifunctional threaded bottle is provided with an air outlet for balancing internal and external air pressure and a culture solution output port; the biofilm reactor is provided with a culture solution input port and a waste liquid discharge port; the culture solution output port is connected to the culture solution input port through a sterile pipeline, and the multi-channel peristaltic pump is arranged on the sterile pipeline to control flow; the biofilm culture reactor is placed on an inclined bracket, and the ultraviolet lamp is arranged at the lower end of the biofilm culture reactor. The device provided by the invention is compact in combination and small in occupied area, the treatment cost can be effectively reduced, the killing efficiency of the biofilm can reach 85% or above within 24 hours, and the device can be widely applied to the fields of biofilm culture and killing and medical waste or water treatment.

Description

Technical field [0001] The present invention belongs to the field of photocatalytic oxidation, and more particularly to an optical catalytic oxidation apparatus for in situ culture or / and kill the biofilm and its use. Background technique [0002] The biofilm is a structured, coordinated, functional biological community formed by bacteria. 65% of bacterial infections involve the biofilm, the biofilm exists in the sewer pipe, existing on the surgical knife, existing in the catheter, the bioformone is everywhere. The resistance of biofilm to antibiotic therapy is 1000 times the floating bacteria, and the biofilm can secretecemopolymer make some control techniques such as rinsing, chlorination and ultraviolet disinfection costs more and have a relatively difficult killing. Therefore, the killing of biofilms tends to be a hospital and water treatment, including medical waste and wastewater treatment, and most of the previous research is a single-term cultured or chlorine treatment ...

AI Technical Summary

Problems solved by technology

However, biofilms are 1000 times more resistant to antibiotic treatment than planktonic bacteria, and biofilms secrete extracellular polymers, making some control techniques such as washing, chlorination and ultraviolet disinfection costly and relatively difficult to kill

Therefore, the killing of biofilms often becomes a difficult problem in hospitals and water supply treatment, including medical waste and wastewater treatment, and most of the previous research is only on the cultivation of biofilms or the killing of biofilms by chlorine treatment technology. , there is no integrated technology for biofilm cultivation and in-situ killing, and photocatalytic oxidation technology has certain potential advantages for biofilm removal

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