Abstract
The control of the discharge of precursors to trihalometanes (THMs) derived from industrial wastewater is indicated to be important as well as the countermeasures in drinking water plants. Effluents containing various dyestuffs, intermediates and auxiliaries, which are typically biorefractory, are known to have high trihalomethane formation potential (THMFP) as well as intense color. In this study, fourteen water‐soluble dyestuffs were ozonated to investigate the variations of total organic halide formation potential (TOXFP) and THMFP, and then correlated with color. Phenol was selected as a target compound because it had a fundamental molecular structure. The ratio of THMFP to TOXFP (THMFP/TOXFP) varied from 0.12 to 0.54 before ozonation. The variation patterns of TOXFP and THMFP were roughly divided into two groups: (1) compounds showing a maximum in the initial stage and (2) compounds showing a uniform decrease. In spite of the different variation patterns and initial values, long‐term ozonation decreased both TOXFP and THMFP. The difference in THMFP/TOXFP became slighter after ozonation. From the relationship between TOXFP, THMFP and color, long‐term ozonation, especially ozonation after decolorization was found to be necessary for the removal of organic halides.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
