本文首先研究了海水体系中纳米Al2O3对Fe离子的吸附过程，通过单因素和正交试验探讨了Fe初始浓度、海水pH和盐度等因素对吸附过程的影响。其次，以普通小球藻和球等鞭金藻为受试对象，用藻体的叶绿素a含量、蛋白质含量、超氧化物歧化酶（SOD）活性和丙二醛（MDA）含量为指标，研究了不同浓度和粒径的纳米Al2O3、与Fe共存的纳米Al2O3对海洋微藻的生长效应。主要结论如下： （1）纳米Al2O3对铁离子吸附的平衡时间为15min，为准二级反应吸附，平衡吸附量qe为8.55mg/g。同等条件下（25°C、初始铁离子浓度为0.100~0.400mg/L），30nm和80nm的纳米Al2O3对铁离子的...In this paper, we firstly studied the adsorption of iron ion by nano-Al2O3, analyzed the effects of Fe initial concentration, pH and salinity of seawater on the adsorption process by single element and orthogonal experiments. Secondly, we studied the growth effect of nano-Al2O3 at different concentrations and particle sizes, nano-Al2O3 and Fe coexistence on Chlorella Vulgaris and Isochrysis galban...学位：理学硕士院系专业：海洋与地球学院_海洋化学学号：2232013115138
