Li Jinhua, Zhou Baoxue, Liu Yangqiao, Yang Qingfeng, Cai Weiming
School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China.
J Hazard Mater. 2008 Mar 1;151(2-3):389-93. doi: 10.1016/j.jhazmat.2007.06.001. Epub 2007 Jun 3.
The effects of different heavy metals (Cd, Pb), surfactants (cetyltrimethylammonium bromide (CTAB), cetylpyridine chloride (CPC)) and the ionic strength (Ca2+, NH4+) on breakthrough curves (BTCs) for sorption and desorption of bisphenol A (BPA) were studied using soil column experiment. Results showed that the presence of heavy metals and cationic surfactants caused a significant increase on the BPA sorption. In addition, the volume required when effluent concentration reached half of the influent concentration (VC1/2) increased due to the introduction of heavy metals and surfactants. It was also found that the larger amount of BPA was absorbed with higher ionic strength. The cationic surfactants enhanced the desorption ability of BPA from the soil. The results provided a better understanding of BPA behavior in environment and facilitated more accurate assessment of its ecological risk and identification of appropriate management strategies.
采用土柱实验研究了不同重金属（镉、铅）、表面活性剂（十六烷基三甲基溴化铵（CTAB）、十六烷基氯化吡啶（CPC））和离子强度（钙离子、铵离子）对双酚A（BPA）吸附和解吸穿透曲线（BTCs）的影响。结果表明，重金属和阳离子表面活性剂的存在导致BPA吸附显著增加。此外，由于引入了重金属和表面活性剂，流出物浓度达到进水浓度一半时所需的体积（VC1/2）增加。还发现，离子强度越高，BPA的吸附量越大。阳离子表面活性剂增强了BPA从土壤中的解吸能力。研究结果有助于更好地理解BPA在环境中的行为，便于更准确地评估其生态风险并确定适当的管理策略。
