Study on the treatment of simulated coking wastewater by O3 and O3/Fenton processes in a rotating packed bed

In this study, simulated coking wastewater was treated by the O 3 /Fenton process in a rotating packed bed (RPB) and the results were compared with those by the O 3 process. Contrast experiments indicated that the degradation rates of phenol, aniline, quinoline and NH 3 -N in the wastewater reached...

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Main Authors: Wei, Qing, Qiao, Shufeng, Sun, Baochang, Zou, Haikui, Chen, Jianfeng, Shao, Lei
Format: Article
Language:English
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Summary:In this study, simulated coking wastewater was treated by the O 3 /Fenton process in a rotating packed bed (RPB) and the results were compared with those by the O 3 process. Contrast experiments indicated that the degradation rates of phenol, aniline, quinoline and NH 3 -N in the wastewater reached 100%, 100%, 95.68% and 100% respectively under the optimum operating conditions in the O 3 /Fenton process and were much higher than those in the O 3 process. The BOD 5 /COD value of the simulated coking wastewater treated in the O 3 /Fenton process reached 0.46 and was 135% higher than that in the O 3 process. The degradation pathways of phenol, aniline, quinoline and NH 3 -N in the simulated coking wastewater were also discussed. The results indicated that a combination of the advanced oxidation processes and the RPB can enhance the treatment efficiency of coking wastewater. A rotating packed bed was used to intensify the O 3 and O 3 /Fenton processes for coking wastewater treatment.
ISSN:2046-2069
DOI:10.1039/c5ra14198b