1 research outputs found
Performance and Pathway of 4-Chloroaniline Degradation: A Comparative Study of Electro-Peroxone, Ozonation, and Electrolysis Processes
Full text link4-chloroaniline (4CA) is a carcinogen in animals and a possible carcinogen in humans. It is widely used as a feedstock in various industrial processes, leading to environmental contamination and potential risks to drinking water sources. This study evaluates the Electro-peroxone process (E-peroxone) for 4CA removal under various applied currents. The reduction of dissolved organic carbon (DOC) and ultraviolet UV absorbance at 254 nm (UV254) was analyzed to assess mineralization among the E-peroxone, ozonation, and electrolysis processes. The E-peroxone process (all applied currents) achieved 4CA removal within 5 min and partially reduced DOC. The E-peroxone process (640 mA) exhibited the highest 4CA removal rate constant (1.256 min–1). Among the three systems, both E-peroxone and ozonation showed comparable 4CA removal but E-peroxone achieved greater UV254 and DOC reduction indicating enhanced mineralization. 4-chloronitrobenzene was identified as a byproduct, suggesting that E-peroxone and ozone can convert 4CA to less toxic compounds. Overall, these findings demonstrate that E-peroxone is more effective than ozonation and electrolysis, offering a promising approach for 4CA removal and mineralization. Residual DOC after oxidation could be further treated using biological processes
