The huge quantities of textile industry effluents with high concentrations of heavy metals are associated with the water pollution. Among the conventional technologies currently in use for heavy metals removal, the adsorption offers an economical and eco-friendly approach for textile wastewater treatment. Adsorption efficiency is depending on the chemical structure of the adsorbent such as activated carbon from agricultural waste. Banana peel waste as activated carbon has been reported with high efficiency to remove heavy metals from the textile wastewater. The current review describes the impacts of heavy metals from textile industries on human, plants, and animals and the various methods used for the removal process. The paper looked into the various adsorption methods, and the methods used for generating activated carbon from the lignocellulosic materials. Moreover, the agricultural residues are lignocellulosic substances that encompass hemicelluloses, cellulose, and lignin which is denoted as the most stable in terms of thermal factor. The review works focus on lignocellulosic substances as an efficient adsorbent for heavy metals and colour (dyes) removal. It appeared that the adsorption capacity for different types of the biomass ranged from 153.85 to 7.24 mg g⁻¹ for Cd${}^{2+}$ ions, 1067.8 to 18.9 mg g⁻¹ for Cu${}^{2+}$ ions, 175.6 to 1.7 mg g⁻¹ for Ni${}^{2+}$ ions, 566.4 to 7.23 mg g⁻¹ for Pb${}^{2+}$ ions and from 534.2 to 0.45 mg g⁻¹ for Zn${}^{2+}$ ions. These findings indicated that the heavy metals having different affinity to the adsorbent, among the heavy metals Ni${}^{2+}$ and Cd${}^{2+}$ has less affinity and the adsorbent used for the removal these metals need to be prepared with high porosity and surface area.

纺织工业废水中大量重金属含量高与水污染有关。在目前用于去除重金属的常规技术中，吸附为纺织废水的处理提供了一种经济，环保的方法。吸附效率取决于吸附剂的化学结构，例如农业废料中的活性炭。据报道，香蕉皮废料作为活性炭可以高效去除纺织品废水中的重金属。本篇综述描述了来自纺织工业的重金属对人类，植物和动物的影响以及用于去除过程的各种方法。本文研究了各种吸附方法，以及用于从木质纤维素材料产生活性炭的方法。此外，农业残余物是木质纤维素物质，包括半纤维素，纤维素和木质素，就热因子而言，木质素被认为是最稳定的。审查工作的重点是木质纤维素物质，作为重金属和色料（染料）去除的有效吸附剂。结果表明，不同类型生物质的吸附容量范围为153.85至7.24 mg g。镉为^-1${}^{\mathrm{2个}+}$离子，对于Cu为1067.8至18.9 mg g ^-1${}^{\mathrm{2个}+}$离子，Ni含量为175.6至1.7 mg g ^-1${}^{\mathrm{2个}+}$离子，566.4至7.23毫克克^-1铅${}^{\mathrm{2个}+}$离子和Zn的534.2至0.45 mg g ^-1${}^{\mathrm{2个}+}$离子。这些发现表明，在重金属Ni中，重金属对吸附剂的亲和力不同。${}^{\mathrm{2个}+}$ 和镉${}^{\mathrm{2个}+}$ 具有较小的亲和力，并且用于去除这些金属的吸附剂需要制备成具有高孔隙率和高表面积。