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首页> 外文期刊>International Journal of Advanced Biotechnology and Research >Biosorption of Acid Green 25 from Textile dye effluent using Barley husk
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Biosorption of Acid Green 25 from Textile dye effluent using Barley husk

机译：大麦壳对纺织染料废水中酸性绿25的生物吸附

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This paper presents the performance of the low cost adsorbent Barley husk in removing the acid green 25 ( AG25)such from textile dye effluent. Biosorption studies were carried out for various parameters such as adsorbent dosage,initial AG 25 concentration and contact time. Adsorption of AG25 onto Barley husk increased with the increase in theadsorbent dosage and the optimum adsorbent dosage was found to be 3 g/L. The equilibrium between the dye and theadsorbent in the solution was established within 75 min. The pseudo-second-order kinetic model agrees very well withthe experimental results. Thermodynamic parameters such as Gibb's free energy change (ΔG°), enthalpy change(ΔH°) and entropy change (ΔS°) were calculated. The positive values of ΔH° and negative values of ΔG° indicatesthat the AG25 adsorption process is endohermic and spontaneous in nature. The results indicate that Barley husk is asuitable adsorbent for the adsorption of textile dyes.
机译：本文介绍了低成本吸附剂大麦壳去除纺织染料废水中的酸性绿25（AG25）的性能。对各种参数进行了生物吸附研究，例如吸附剂量，初始AG 25浓度和接触时间。大麦壳对AG25的吸附量随吸附剂量的增加而增加，最佳吸附剂量为3 g / L。在75分钟内建立了溶液中染料与吸附剂之间的平衡。拟二阶动力学模型与实验结果非常吻合。计算了诸如吉布的自由能变化（ΔG°），焓变（ΔH°）和熵变（ΔS°）之类的热力学参数。 ΔH°的正值和ΔG°的负值表明AG25吸附过程本质上是内吸的和自发的。结果表明，大麦壳是适合吸附纺织品染料的吸附剂。

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