Abstract
This study was performed to investigate the removal of COD and color from a dye manufacturing plant wastewater using the H 2O 2/UV/Fe 2+ process. Comparison of removal efficiencies were made among the H 2O 2/UV, the H 2O 2/Fe 2+ and the H 2O 2/UV/Fe 2+ processes. Removal of COD and color of approximately 80 and 90% can be achieved by H 2O 2/UV/Fe 2+ processes, respectively. The H 2O 2/Fe 2+ reaction is responsible for approximately 80% removal of both COD and color, the H 2O 2/UV reaction for 10%, and UV/Fe 3+ for the remaining 10%. The removal kinetics of COD and color were consistent with those of H 2O 2 and Fe 2+, respectively. Ferrous ions addition at higher dosage results in the rate of COD removal per unit dosage higher than that of color, whereas the UV irradiation favors color removal more than the COD removal, in terms of rate or rate per unit power. It appears that there is some benefit gained by multi-step addition of Fe 2+, but not H 2O 2.
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.
