Department of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
Environ Res. 2022 Sep;212(Pt A):113114. doi: 10.1016/j.envres.2022.113114. Epub 2022 Mar 21.
The presence of pollutants and toxic contaminants in water sources makes it unfit to run through. Though various conventional techniques are on deck, development of new technologies are vital for wastewater treatment and recycling. Polymers have been intensively utilized recently in many industries owing to their unique characteristics. Biopolymers resembles natural alternative to synthetic polymers that can be prepared by linking the monomeric units covalently. Despite the obvious advantages of biopolymers, few reviews have been conducted. This review focuses on biopolymers and composites as suitable adsorbent material for removing pollutants present in environment. The classification of biopolymers and their composites based on the sources, methods of preparation and their potential applications are discussed in detail. Biopolymers have the potentiality of substituting conventional adsorbents due to its unique characteristics. Biopolymer based membranes and effective methods of utilization of biopolymers as suitable adsorbent materials are also briefly elaborated. The mechanism of biopolymers and their membrane-based adsorption has been briefly reviewed. In addition, the methods of regeneration and reuse of used biopolymer based adsorbents are highlighted. The comprehensive content on fate of biopolymer after adsorption is given in brief. Finally, this review concludes the future investigations in recent trends in application of biopolymer in various fields in view of eco-friendly and economic perspectives.
水源中污染物和有毒污染物的存在使其不适宜流通。尽管有各种传统技术，但开发新技术对于废水处理和回收至关重要。由于其独特的特性，聚合物最近在许多行业中得到了广泛的应用。生物聚合物类似于合成聚合物的天然替代品，可以通过共价键连接单体单元来制备。尽管生物聚合物具有明显的优势，但很少有综述。本综述重点介绍了生物聚合物及其复合材料作为去除环境中存在的污染物的合适吸附材料。详细讨论了基于来源、制备方法及其潜在应用的生物聚合物及其复合材料的分类。由于其独特的特性，生物聚合物有可能替代传统的吸附剂。还简要阐述了基于生物聚合物的膜和有效利用生物聚合物作为合适吸附剂材料的方法。简要回顾了生物聚合物及其基于膜的吸附的机制。此外，还强调了用过的基于生物聚合物的吸附剂的再生和再利用方法。简要介绍了吸附后生物聚合物的归宿的综合内容。最后，从环保和经济的角度出发，综述了生物聚合物在各个领域应用的最新趋势的未来研究。
