中文摘要：

以硅藻土与壳聚糖为原料,戊二醛作为交联剂,制备了一种复合吸附材料,研究了其对水中 Hg2＋的吸附性能,探讨了复合吸附材料的配比、Hg2 ＋初始浓度、吸附材料的质量与吸附时间等因素对Hg2＋吸 附性能的影响.研究表明,随着硅藻土含量的增加,对应Hg2 ＋的吸附容量与去除率均下降;此外,随着Hg2 ＋初 始浓度的提髙,其去除率降低,而吸附容量却提髙;增加吸附剂的质量, Hg2＋的吸附容量与去除率也相应增 力口;当吸附时间在45 min以内,对应的吸附容量与去除率随吸附时间的增加而提髙,当吸附时间超过45 min 后,吸附容量与去除率基本不变.

英文摘要：

A new polymer composite adsorption material of diatomite and chitosan was prepared using a crosslinking agent of glutaraldehyde and its adsorption property of mercury ions （Hg2 ＋ ） in water was studied. The effects of the composite material ratio, initial concentration of Hg2＋ , the weight of adsorption material and adsorption time on the Hg2 ＋ removal property were investigated. The results show that the Hg2＋ removal rate and adsorption capacity decrease with the increasing diatomite content in the composite. However,the Hg2＋ removal rate decreases and adsorption capacity increases with the increasing initial concentration of Hg2 ＋ . The Hg2 ＋ removal rate and adsorption capacity increases with the increasing weight of the adsorption material. When the adsorption time is less than 45 min, the corresponding Hg2 ＋ removal rate and adsorption capacity increases with increasing adsorption time, while they become nearly constant after 45 min.