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利用聚乙烯亚胺聚合物(PEI)修饰蛋壳膜,成功合成了一种新型生物吸附材料,并将其用于吸附线性烷基苯磺酸盐(LAS),研究了吸附时间、pH值、腐殖酸(HA)以及NaCl浓度、不同种类的阴离子等因素对LAS吸附行为的影响.结果表明,PEI-蛋壳膜对于LAS的吸附属于快速吸附过程,在1h内可达到吸附平衡.不同阴离子对PEI-蛋壳膜吸附LAS的影响从大到小符合以下顺序:PO3-4,SO2-4,NO-3,Cl-,F-.
A new type of biosorbent material was successfully synthesized by using polyethyleneimine polymer (PEI) modified egg shell membrane, which was used to adsorb linear alkyl benzene sulfonate (LAS). The effects of adsorption time, pH value, Humic acid (HA) and NaCl concentration, different kinds of anions and other factors on the adsorption behavior of LAS.The results show that the adsorption of LAS by PEI-eggshell membrane belongs to the rapid adsorption process, adsorption equilibrium can be achieved in 1h.And different anions The effect of adsorption of LAS on PEI-egg shell membrane from small to small in the following order: PO3-4, SO2-4, NO-3, Cl-, F-.