Method for removing endotoxin in water source by combination of potassium ferrate and ultraviolet disinfection

Abstract

This invention discloses a method for removing endotoxins from water sources based on the combined disinfection of potassium ferrate and ultraviolet light, belonging to the field of water source disinfection technology. The key technical points are: it clarifies that the combined disinfection of potassium ferrate and ultraviolet light can effectively remove endotoxins from water sources, and the optimal disinfection conditions were selected: a final potassium ferrate concentration of 10 mg / L and an ultraviolet irradiation intensity of 160 μW / cm². 2 The initial pH of the system was 7, and the reaction time was 15 minutes. While both potassium ferrate and ultraviolet light can kill bacteria individually, they cannot remove endotoxins and may even exacerbate contamination by releasing endotoxins through bacterial death. However, combined potassium ferrate and ultraviolet light disinfection can rapidly remove endotoxins while killing bacteria, reducing lung damage and inflammatory responses caused by inhalation exposure. This is achieved by disrupting the internal structure of the endotoxins, rendering them ineffective. This invention uses combined potassium ferrate and ultraviolet light disinfection to remove endotoxins from water sources, reducing their biological activity and health risks, and is characterized by its speed, efficiency, and safety.

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