Discussion on safety of potassium monopersulfate compound in drinking water disinfection

Abstract

Abstract: As a relatively safe and highly efficient oxidant and disinfectant,potassium monopersulfate compound has been widely applied in the fields of drinking water disinfection,aquaculture and environmental disinfection. This paper analyzes the research progress of latest literature on basic physical and chemical properties of potassium monopersulfate compound for disinfection,the disinfection principle,disinfection efficacy and influencing factors,and the disinfection by-products. It is found that potassium monopersulfate compound could effectively remove the small molecular organic substances such as alcohols and aldehydes,as well as microorganisms and algae in drinking water. However,some halogenated hydrocarbons and halogenated substances are also produced in the disinfection process,resulting in risk of exceeding the Standards for drinking water quality（GB 5749-2022）. The basic research and application practice,monitoring and risk assessment of potassium monopersulfate compound in drinking water disinfection should continue to be enriched and deepen. According to the laws and regulations and standards,the hygiene supervision and management systems should be improved.

Key words: Potassium monopersulfate compound, Drinking water, Disinfection, Safety

CLC Number:

R187

LIAO Yan, ZHANG Yujing, YANG Wenjing, YE Dan, YAN Xu, PAN Lijun. Discussion on safety of potassium monopersulfate compound in drinking water disinfection. [J]OCCUPATION AND HEALTH, 2023, 39(18): 2564-2567.

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