The effect of hydrogen peroxide concentration in degradation of 2,4,6-trichlorophenol using UV light: article

The highly toxic of organic contaminant had caused problems to human health and the environment. Hence, it was very compulsory to do a research on method how to degrade the toxic compound from the environment. The method proposed was by using the presence of an oxidizing agent which was H2O2 solution together with UV light. In order to study effect on H2O2 concentration, the concentration of H2O2 solution was varied to three different concentrations. Those were 5%w/v, 15%w/v and 25%w/v respectively. The initial concentration of 2,4,6-TCP was prepared at 30 and 60 ppm to study the effect between different initial concentration. The period of exposure of the sample to the UV light was 6 hours. The experiment was conducted in a 25mL sealed glass bottle which act as batch reactor. Six sample solutions were prepared. The instrument used to analyze the degradation was High Performance Liquid Chromatography (HPLC). From the analysis, different H2O2 concentration gives big influence to the degree of degradation of the 2,4,6-TCP compound. From the research study, increasing concentration of H2O2 solution, cause the percent of removal of the persistent organic compound also increasing for both initial concentration of 2,4,6-TCP. The highest degree of degradation for 30ppm and 60ppm concentration were 100% and 99.62% respectively. The combination of H2O2/UV by AOPs shows high efficiency in the degradation process.