The Effect of UV Degradation of Ketoprofen and Its Influencing Factors

Abstract

This paper mainly studies the removal effect of ketoprofen in UV-degraded water and explores the influence of light turbidity, light intensity and other factors on the degradation efficiency of ketoprofen. The results show that deep ultraviolet treatment has a good degradation effect on ketoprofen, which accords with the pseudo-first-order kinetic equations. After irradiation with 1700 μw/cm2 UV lamps for 40 minutes, the maximum removal rate can reach 99.59%. Besides, UV lamps with different irradiation strengths (1300μw/cm2/1700μw/cm2) have similar treatment effects on ketoprofen. Low turbidity (1-5NTU) solutions will reduce the degradation rate of ketoprofen, while high turbidity (5-9NTU) solutions will enhance the degradation rate of ketoprofen. Solution turbidity is increased after UV degradation of ketoprofen.