Oxidative Degradation of Hazardous Benzene Derivatives by Ferrate(VI): Effect of Initial pH, Molar Ratio and Temperature

• Published in: Toxics (Basel) Vol. 9; no. 12; p. 327
• Main Authors: Majid, Dian, Kim, Il-Kyu, Laksono, Fajar Budi, Prabowo, Aditya Rio
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 01.12.2021; MDPI
• Subjects: Aquatic environment; Batch reactors; Benzene; Bromobenzene; Chlorobenzene; Contaminants; Degradation; Efficiency; Experiments; ferrate; Functional groups; Hydrocarbons; Methods; Oxidation; pH effects; Pollutants; Reaction time; Water treatment; United States > US; oxidation; chlorobenzene; ferrate; bromobenzene
• ISSN: 2305-6304; 2305-6304
• DOI: 10.3390/toxics9120327

Two of the most hazardous benzene derivatives (HBD) that have polluted the aquatic environment are bromobenzene and chlorobenzene. Ferrate can degrade various pollutants quickly and efficiently without producing harmful byproducts. This study aims to determine the ability of ferrate to degrade harmful contaminants such as bromobenzene and chlorobenzene. A series of batch experiments were carried out, including for the molar ratio, initial pH solution, and temperature. The study was conducted at an initial pH of 3.6 to 9.6, a molar ratio of 2 to 8 and a temperature of 15 to 55 °C. The study will also examine the differences in functional groups in these pollutants. As a result of the experiments, the optimum conditions to oxidize HBD in a batch reactor was found to have an initial pH of 7.0, a molar ratio of 8, and a temperature of 45 °C, with a 10 min reaction time. Ferrate has a degradation ability against chlorobenzene greater than bromobenzene. The functional cluster in pollutants also significantly affects the degradation ability of ferrate. The results of the degradation experiment showed that ferrate(VI) could effectively oxidize hazardous benzene derivatives in a solution.