Removal of hydrophobic volatile organic compounds with sodium hypochlorite and surfactant in a co-current rotating packed bed
Wenhui Li , Haidi Liu , Shuangde Li , Weiman Li , Yunfa Chen , Jiajia Gao , Yaqun Cao
DOI:10.1016/j.jes.2016.12.009
Received June 16, 2016,Revised August 07, 2016, Accepted December 13, 2016, Available online December 28, 2016
Volume 30,2018,Pages 190-196
A co-current flow rotating packed bed was applied to remove volatile organic compounds (VOCs) by sodium hypochlorite (NaClO) and surfactant (sodium dodecyl benzene sulfonate, SDBS) from air stream. Xylene was used as a model VOC herein. The effect of pH, concentration of NaClO and SDBS solution, liquid flow rate, gas flow rate and rotational speed on xylene removal efficiency and overall mass transfer coefficient (KGa) were discussed. Then, a correlation for KGa of the co-current rotating packed bed was proposed by fitting the experimental data of KGa and independent variables of liquid/gas ratio, rotational speed, pH, NaClO concentration and treatment time, which was in good agreement with the experimental data (the deviation ≤ ± 30%).
