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REGENERATION OF WASHING EFFLUENTS FOR REMEDIATION OF PETROLEUM-HYDROCARBONS-CONTAMINATED SOIL BY CORNCOB-BASED BIOMASS MATERIALS
Xu, Z., H. Guo, T. Liu, W. Zhang, and X. Ma. | CS Omega 4(20):18711-18717 (2020)
Modified corncobs were prepared and used as selective adsorbents to remove residual petroleum hydrocarbons from surfactant-enhanced soil washing effluents. The study first characterized the adsorbent structure and optimal conditions. After five cycles, the recovery efficiency of the washing effluents was as high as 75.4%. The optimal adsorbent linear alkylbenzene sulfonates (LAS-Cb) also exhibited excellent recyclability and can be reused five times. The study concludes with proposed selective adsorption mechanisms of the LAS-Cb for petroleum hydrocarbons in washing effluents, which are related to their huge hydrophobic core and surface electronegativity.
Modified corncobs were prepared and used as selective adsorbents to remove residual petroleum hydrocarbons from surfactant-enhanced soil washing effluents. The study first characterized the adsorbent structure and optimal conditions. After five cycles, the recovery efficiency of the washing effluents was as high as 75.4%. The optimal adsorbent linear alkylbenzene sulfonates (LAS-Cb) also exhibited excellent recyclability and can be reused five times. The study concludes with proposed selective adsorption mechanisms of the LAS-Cb for petroleum hydrocarbons in washing effluents, which are related to their huge hydrophobic core and surface electronegativity.
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