Water contamination is a global challenge impacting both the environment and human health with significant economic and social costs. The growing scarcity of usable water resources requires effective treatment of wastewater. In this context, developing cheaper, safer and more efficient wastewater treatment technologies are the need of the hour. One promising approach that several studies have reported success has been the usage of nanomaterials in water and waste water management. The rapid progress of research in nanomaterial sciences has shown their growing potential; however, there has not been a great amount of information available on their implementation. This review focuses on developments in nanotechnology that hold strong potential for wastewater treatment. The review covers key techniques in nanomaterial‐based water treatments including adsorption, filtration and photocatalysis with recent examples showing how to improve their properties and efficiencies according to the need.

中文翻译：

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基于纳米技术的废水处理

水污染是一项全球性挑战，以巨大的经济和社会成本影响着环境和人类健康。可用水资源的日益短缺要求对废水进行有效处理。在这种情况下，迫切需要开发更便宜，更安全，更高效的废水处理技术。几项研究已报告成功的一种有前途的方法是在水和废水管理中使用纳米材料。纳米材料科学研究的飞速发展显示了它们的潜力。但是，有关其实施的信息不多。这篇评论的重点是在废水处理方面具有强大潜力的纳米技术的发展。