Polymer derivatives based on polysaccharides have received increasing attention in wastewater treatment due to their easy availability and environmental friendly nature. Thus, a lot of modified polysaccharides (chitosan, dextran, cellulose, starch, etc) have been used as flocculants/adsorbants for removal of different contaminants. However, from the literature study it was observed that in spite of pullulan advantages (high solubility and flexibility of the backbone compared with other polysaccharides) there was a gap in the current research regarding its application, as such or in derivatized form, in wastewater purification. Therefore, in this article we review some important up-to-date results collated from investigations regarding the flocculating and adsorption properties of some pullulan derivatives which have been already evaluated in synthetic wastewater containing inorganic (clay) or organic (dyes, complex formulations of pesticides) contaminants. The data analyzed highlight the driving forces which govern the polycation/contaminant interactions and hence the flocculation/adsorption mechanisms, and demonstrate there are some parameters related to the characteristics of contaminants, polymers and environment which greatly influence the separation efficiency; the best results in terms of optimum polycation dose/removal efficiency and adsorption capacity were established. The accumulated knowledge provides solid arguments for future research regarding the application of pullulan derivatives in wastewater purification.

基于多糖的聚合物衍生物因其易得性和环境友好性而在废水处理中受到越来越多的关注。因此，许多改性多糖（壳聚糖，葡聚糖，纤维素，淀粉等）已被用作絮凝剂/吸附剂，用于去除不同的污染物。然而，从文献研究中观察到，尽管支链淀粉具有优势（与其他多糖相比，主链具有较高的溶解度和柔韧性），但目前的研究在废水净化中的应用（以此类衍生或衍生形式）仍存在差距。因此，在本文中，我们将对一些支链淀粉衍生物的絮凝和吸附特性进行调查，整理一些重要的最新结果，这些支链淀粉衍生物已在含有无机（粘土）或有机（染料，农药的复杂配方）污染物的合成废水中进行了评估。 。分析的数据突出显示了控制聚阳离子/污染物相互作用的驱动力，进而决定了絮凝/吸附机理，并证明了一些与污染物，聚合物和环境的特性有关的参数，这些参数极大地影响了分离效率。在最佳的聚阳离子剂量/去除效率和吸附能力方面获得了最佳结果。