East China University of Science and Technology, Shanghai, China.
Water Sci Technol. 2012;66(4):810-5. doi: 10.2166/wst.2012.253.
Removal of phenanthrene (PHE) from aqueous solution by adsorption onto quaternary ammonium surfactant modified peat was studied. The results show that surfactant modification enhanced the PHE adsorption capacity of peat. Low temperature and neutral pH favored PHE adsorption. Peat modified with long carbon chain surfactant performed better than peat modified with short carbon chain surfactant. The magnitude of PHE adsorption capacity followed the order of MP-HPB>MP-HTAB>MP-TBAB>RP, ranged from 924 to 1,228 μg g(-1). A negative trend between adsorption capacity (y) and (O+N)/C ratio of biosorbent (x) was observed (y = -1,369.6x + 2,176), which confirmed the negative effect of polarity on polycyclic aromatic hydrocarbon (PAH) removal. The study provides a guide to modify raw materials to enhance adsorption of hydrophobic organics.
采用季铵盐改性泥炭吸附法去除水溶液中的菲。结果表明，表面活性剂改性增强了泥炭对菲的吸附能力。低温和中性 pH 值有利于菲的吸附。长碳链表面活性剂改性的泥炭比短碳链表面活性剂改性的泥炭具有更好的性能。菲的吸附容量大小依次为 MP-HPB>MP-HTAB>MP-TBAB>RP，范围为 924 至 1228μg g(-1)。观察到吸附容量（y）与生物吸附剂（x）中（O+N）/C 比值之间存在负相关关系（y = -1,369.6x + 2,176），这证实了极性对多环芳烃（PAH）去除的负面影响。该研究为改性原材料以增强疏水性有机物的吸附提供了指导。
