Removal of hydrophobic volatile organic compounds with sodium hypochlorite and surfactant in a co-current rotating packed bed

• Published in: Journal of environmental sciences (China) 2018-02, Vol.64 (2), p.190-196
• Main Authors: Li, Wenhui, Liu, Haidi, Li, Shuangde, Li, Weiman, Chen, Yunfa, Gao, Jiajia, Cao, Yaqun
• Format: Article
• Language: English
• Subjects: Air Filters; Air Pollutants - chemistry; Co-current flow rotating packed bed; Overall mass transfer coefficient; Removal efficiency; Sodium Hypochlorite - chemistry; Surface-Active Agents - chemistry; VOCs; Volatile Organic Compounds - chemistry; 旋转速度; 有机化合物; 表面活化剂; 次氯酸盐; 移动效率; 不稳定; 水流; 包装
• ISSN: 1001-0742; 1878-7320
• DOI: 10.1016/j.jes.2016.12.009

A co-current flow rotating packed bed was applied to remove volatile organic compounds（VOCs） by sodium hypochlorite（Na Cl O） and surfactant（sodium dodecyl benzene sulfonate,SDBS） from air stream. Xylene was used as a model VOC herein. The effect of p H,concentration of Na Cl O 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, p H, Na Cl O concentration and treatment time, which was in good agreement with the experimental data（the deviation ≤ ± 30%）.