Recent Trends and Advances in the Removal of Dyes from Industrial Wastewater Using Low Cost Adsorbents

Ravi Manne
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Abstract

Dyes are complex class of organic compound having wide range of applications in textile and food industries and a large amount of dyes are wasted, which get mixed in natural water resources, and pollute environment. Mixing of dyes in water resources must be prohibited for the safety of natural ecosystem. Dyes are used for coloring textiles, wool, leather, paper and fibers. Natural dyes like indigo have been in use for over 5000 years. Natural dyes are replaced by synthetic dyes because of their low cost and vast range of new colors. Today, there are more than 10,000 dyes with different chemical structures available commercially. The natural and modified adsorbents are being successfully used for the adsorption of dyes from wastewater. Importance of several adsorbents like industrial waste, agricultural waste and clay adsorbents of both raw and modified for adsorption of dyes from textile wastewater has been highlighted in this review article. In this review we cover the regeneration capacity and adsorption efficiency of different adsorbents for the treatment of industrial dyes to control water pollution. We also reviewed wide variety of techniques and materials that have been used to remove organic pollutants from water. some adsorption techniques are cost-effective, ecofriendly, clay-supported adsorbents are widely because if their simplicity and good efficiency.  Graphical Abstract:                                                                                                                             
低成本吸附剂去除工业废水中染料的最新趋势和进展
染料是一类复杂的有机化合物,在纺织和食品工业中有着广泛的应用,大量的染料被浪费,与自然水资源混合,污染环境。为了保护自然生态系统的安全,必须禁止在水资源中掺入染料。染料用于给纺织品、羊毛、皮革、纸张和纤维着色。像靛蓝这样的天然染料已经使用了5000多年。天然染料因其低廉的成本和广泛的新颜色而被合成染料所取代。今天,市面上有超过10000种不同化学结构的染料。天然吸附剂和改性吸附剂已成功地用于废水中染料的吸附。本文综述了工业废渣、农业废渣、原生和改性粘土等吸附剂对纺织废水中染料的吸附作用。本文综述了不同吸附剂在工业染料处理中的再生能力和吸附效率。我们还回顾了用于去除水中有机污染物的各种技术和材料。一些经济、环保的吸附技术因其简单、高效而得到广泛应用。图形化的简介:
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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