Department of Chemistry, Faculty of Arts and Science, Eskişehir Osmangazi University, Eskişehir, Turkey.
Bioresour Technol. 2010 Oct;101(19):7271-7. doi: 10.1016/j.biortech.2010.04.044. Epub 2010 May 14.
Biosorption characteristics of a surfactant modified macro fungus were investigated for decolorization of Reactive Red 2 contaminated solutions. Better biosorption efficiency was obtained with a small amount of fungal biomass after modification process. Operating variables like pH, biomass amount, contact time, temperature, dye concentration, flow rate and column size were explored. The biosorption process followed the pseudo-second-order kinetic and Langmuir isotherm models. Thermodynamic data confirm that the biosorption process is spontaneous and endothermic in nature. Under optimized batch conditions, up to 141.53 mg dye g(-1) could be removed from solution in a relatively short time. Modification process was confirmed by FTIR spectroscopy and zeta potential studies. Possible dye-biosorbent interactions were discussed. Good dynamic flow biosorption potential was observed for the suggested biosorbent in simulated wastewater. Overall, batch and continuous mode data suggest that this environmentally friendly and efficient biosorbent may be useful for the removal of reactive dyes from aqueous media.
研究了一种表面活性剂改性大型真菌对污染溶液中活性红 2 的吸附特性。经过改性后，真菌生物量少量即可获得更好的吸附效率。考察了 pH 值、生物量、接触时间、温度、染料浓度、流速和柱尺寸等操作变量。吸附过程遵循拟二级动力学和朗缪尔等温线模型。热力学数据证实，吸附过程是自发的、吸热的。在优化的批量条件下，在较短的时间内可以从溶液中去除高达 141.53mg 染料/g。通过傅里叶变换红外光谱和zeta 电位研究证实了改性过程。讨论了可能的染料-生物吸附剂相互作用。在所提出的生物吸附剂中观察到良好的模拟废水动态流动吸附潜力。总的来说，批量和连续模式数据表明，这种环保且高效的生物吸附剂可能有助于从水介质中去除活性染料。
