Department of Chemical Engineering, Curtin University, GPO Box U1987, 6845 Bentley, WA, Australia.
Department of Chemical Engineering, Curtin University, GPO Box U1987, 6845 Bentley, WA, Australia.
Adv Colloid Interface Sci. 2014 Jul;209:172-84. doi: 10.1016/j.cis.2014.04.002. Epub 2014 Apr 13.
In this review article the authors presented up to-date development on the application of adsorption in the removal of dyes from aqueous solution. This review article provides extensive literature information about dyes, its classification and toxicity, various treatment methods, and dye adsorption characteristics by various adsorbents. One of the objectives of this review article is to organise the scattered available information on various aspects on a wide range of potentially effective adsorbents in the removal of dyes. Therefore, an extensive list of various adsorbents such as natural materials, waste materials from industry, agricultural by-products, and biomass based activated carbon in the removal of various dyes has been compiled here. Dye bearing waste treatment by adsorption using low cost alternative adsorbent is a demanding area as it has double benefits i.e. water treatment and waste management. Further, activated carbon from biomass has the advantage of offering an effected low cost replacement for non-renewable coal based granular activated carbon provided that they have similar or better adsorption on efficiency. The effectiveness of various adsorbents under different physico-chemical process parameters and their comparative adsorption capacity towards dye adsorption has also been presented. This review paper also includes the affective adsorption factors of dye such as solution pH, initial dye concentration, adsorbent dosage, and temperature. The applicability of various adsorption kinetic models and isotherm models for dye removal by wide range of adsorbents is also reported here. Conclusions have been drawn from the literature reviewed and few suggestions for future research are proposed.
在这篇综述文章中，作者介绍了吸附在从水溶液中去除染料方面的最新发展。这篇综述文章提供了广泛的文献信息，涉及染料、其分类和毒性、各种处理方法以及各种吸附剂对染料的吸附特性。本文的目的之一是整理广泛的潜在有效吸附剂在去除染料方面的各个方面的分散信息。因此，在这里编制了各种吸附剂的广泛列表，例如天然材料、工业废物、农业副产品和基于生物质的活性炭，用于去除各种染料。用低成本替代吸附剂吸附含染料的废物处理是一个要求苛刻的领域，因为它具有双重好处，即水处理和废物管理。此外，生物质活性炭的优点是为不可再生的煤基颗粒活性炭提供了有效的低成本替代品，只要它们具有相似或更好的吸附效率。还介绍了各种吸附剂在不同物理化学工艺参数下的有效性及其对染料吸附的比较吸附容量。本文综述还包括了影响染料吸附的有效吸附因素，如溶液 pH 值、初始染料浓度、吸附剂用量和温度。还报告了各种吸附动力学模型和等温线模型对广泛吸附剂去除染料的适用性。从综述的文献中得出了结论，并提出了一些未来研究的建议。
