Simultaneous treatment of dye wastewater and surfactant wastewater by foam separation: Experimental and mesoscopic simulation study |
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| Authors: | Xuening Fei Weiwei Li Lijuan Liu Yongfan Yang |
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| Affiliation: | 1. Department of Chemistry, School of Science, Tianjin Chengjian University, Tianjin, P. R. China;2. School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, P. R. China;3. School of Chemical Engineering and Technology, Tianjin University, Tianjin, P. R. China;4. School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin, P. R. China |
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| Abstract: | Foam separation for simultaneous removal of rhodamine B (RhB) and cetyl trimethyl ammonium bromide (CTAB)/sodium dodecyl benzene sulfonate (SDBS) from model wastewater was studied. The effect of the surfactant type, aeration rate, temperature, and initial pH on the removal efficiency and enrichment ratio of dye/surfactant were investigated. The results indicated that electrostatic attraction between the dye and surfactant have a great effect on the recovery of the dye and surfactant. The aeration rate has significant influence on the CTAB and RhB removal and enrichment, while the initial pH has a great effect on the RhB removal, but little effect on CTAB removal. Moreover, dissipative particle dynamics (DPD) was employed to simulate the interaction between the surfactant and the dye. |
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| Keywords: | Surfactant Rhodamine B foam separation removal efficiency dissipative particle dynamics |
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