Civil and Environmental Engineering Department, Khalifa University of Science and Technology, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
Environ Sci Pollut Res Int. 2023 Aug;30(38):88245-88271. doi: 10.1007/s11356-023-28399-8. Epub 2023 Jul 13.
The impact of water pollution has led to the search for cost-effective and environmentally friendly treatment processes to alleviate the associated environmental hazards. Adsorption is identified as an advanced treatment technology that offers simplicity and cheap alternatives to water treatment technologies when low-cost adsorbents such as industrial by-products, waste, and agricultural waste are utilized. The utilization of these materials as low-cost adsorbents for the treatment of drinking water will bring them some value. Several practices have been done to improve the removal efficiencies of the low-cost adsorbents in order to achieve WHO standards of drinking water quality. The paper highlights some of the synthesis routes employed for the modification of low-cost adsorbents. This updated review provides information on the different applications of low-cost adsorbents in removing pollutants and their adsorption capacities in an attempt to deploy the recent sustainable low-cost adsorbents with high removal efficiencies for water treatment. Future research should focus on the fabrication of hybrid low-cost adsorbents with multifunctional and antimicrobial properties. In addition, life cycle assessment (LCA) should be conducted to reveal the environmental burdens associated with the modification of the low-cost adsorbent to improve their removal efficiencies.
水污染的影响促使人们寻找具有成本效益和环境友好型的处理工艺，以减轻相关的环境危害。吸附被认为是一种先进的处理技术，当使用工业副产品、废物和农业废物等低成本吸附剂时，它为水处理技术提供了简单和廉价的替代方案。将这些材料用作饮用水的低成本吸附剂将为它们带来一些价值。已经采取了几种措施来提高低成本吸附剂的去除效率，以达到世界卫生组织（WHO）的饮用水质量标准。本文重点介绍了一些用于改性低成本吸附剂的合成途径。这篇最新的综述提供了有关低成本吸附剂在去除污染物及其吸附能力方面的不同应用的信息，旨在利用最近具有高效去除率的可持续低成本吸附剂来进行水处理。未来的研究应侧重于制造具有多功能和抗菌性能的混合低成本吸附剂。此外，应进行生命周期评估（LCA），以揭示与低成本吸附剂改性相关的环境负担，以提高其去除效率。
