Geology Department, Faculty of Science, Suez University, P.O. Box 43518, El Salam City, Suez Governorate, Egypt.
Chemistry Department, Faculty of Science, Suez University, P.O. Box 43518, El Salam City, Suez Governorate, Egypt.
Environ Monit Assess. 2023 May 19;195(6):693. doi: 10.1007/s10661-023-11303-9.
In the present era of significant industrial development, the presence and dispersal of countless water contaminants in water bodies worldwide have rendered them unsuitable for various forms of life. Recently, the awareness of environmental sustainability for wastewater treatment has increased rapidly in quest of meeting the global water demand. Despite numerous conventional adsorbents on deck, exploring low-cost and efficient adsorbents is interesting. Clays and clays-based geopolymers are intensively used as natural, alternative, and promising adsorbents to meet the goals for combating climate change and providing low carbon, heat, and power. In this narrative work, the present review highlights the persistence of some inorganic/organic water pollutants in aquatic bodies. Moreover, it comprehensively summarizes the advancement in the strategies associated with synthesizing clays and their based geopolymers, characterization techniques, and applications in water treatment. Furthermore, the critical challenges, opportunities, and future prospective regarding the circular economy are additionally outlined. This review expounded on the ongoing research studies for leveraging these eco-friendly materials to address water decontamination. The adsorption mechanisms of clays-based geopolymers are successfully presented. Therefore, the present review is believed to deepen insights into wastewater treatment using clays and clays-based geopolymers as a groundbreaking aspect in accord with the waste-to-wealth concept toward broader sustainable development goals.
在当今工业发展的时代，全球水体中存在和扩散着无数的水污染物，使它们不适合各种形式的生命。最近，人们对废水处理的环境可持续性的认识迅速提高，以满足全球的水需求。尽管有许多传统的吸附剂可用，但探索低成本和高效的吸附剂是很有趣的。粘土和基于粘土的地质聚合物被广泛用作天然、替代和有前途的吸附剂，以实现应对气候变化和提供低碳、热能和电力的目标。在本叙述性工作中，本综述强调了一些无机/有机水污染物在水生生物中的持久性。此外，它全面总结了与合成粘土及其基于地质聚合物的相关策略的进展、表征技术以及在水处理中的应用。此外，还概述了关于循环经济的关键挑战、机遇和未来展望。本综述阐述了利用这些环保材料来解决水净化问题的正在进行的研究。成功提出了基于粘土的地质聚合物的吸附机制。因此，本综述有望加深对利用粘土和基于粘土的地质聚合物处理废水的理解，这是符合废物变财富概念的开创性方面，有助于更广泛的可持续发展目标。
