The conventional water and wastewater treatment methods are unable to provide up-to-data organized standards for drinking water and discharging effluents into natural ecosystems. Therefore, developing advanced and cost-effective methods to achieve published standards for water and wastewater and population needs are nowadays necessity. The important parts of this article are providing literature information about dyes and their effects on the environment and human health, adsorption properties and mechanism, adsorbent characteristics, and recent information on various aspects of modified activated carbons with nanosized metal oxides (AC- NMOs) in the removal of dyes. This review also summarized the effect of main environmental and operational parameters such as adsorbent dosage, pH, initial dye concentration, contact time, and temperature on the dye adsorption using AC-NMOs. Furthermore, the applied isotherm and kinetic models have been discussed.

传统的水和废水处理方法无法为饮用水和向自然生态系统排放污水提供最新的有组织的标准。因此，开发先进且具有成本效益的方法来达到已发布的水和废水标准以及人口需求是当今的必要条件。本文的重要部分是提供有关染料及其对环境和人类健康影响的文献信息、吸附性能和机理、吸附剂特性，以及有关纳米金属氧化物改性活性炭 (AC-NMO) 的各个方面的最新信息。去除染料。本综述还总结了主要环境和操作参数的影响，如吸附剂用量、pH、初始染料浓度、接触时间、和温度对使用 AC-NMO 的染料吸附的影响。此外，还讨论了应用的等温线和动力学模型。