Many industries generate a considerable amount of wastewater containing toxic and recalcitrant dyes. The main objective of this research was to examine the biosorption capacity of Reactive Blue 19 and Reactive Red 141 by the Antarctic yeast Debaryomyces hansenii F39A biomass. Some variables, including pH, dye concentration, amount of adsorbent and contact time, were studied. The equilibrium sorption capacity of the biomass increased with increasing initial dye concentration up to 350 mg/l. Experimental isotherms fit the Langmuir model and the maximum uptake capacity (q_max) for the selected dyes was in the range of 0.0676–0.169 mmol/g biomass. At an initial dye concentration of 100 mg/l, 2 g/l biomass loading and 20 ± 1 °C, D. hansenii F39A adsorbed around 90% of Reactive Red 141 and 50% of Reactive Blue 19 at pH 6.0. When biomass loading was increased (6 g/l), the uptake reached up to 90% for Reactive Blue 19. The dye uptake process followed a pseudo-second-order kinetics for each dye system. As seen throughout this research study, D. hansenii has the potential to efficiently and effectively remove dyes in a biosorption process and may be an alternative to other costly materials.

许多行业会产生大量含有有毒和顽固染料的废水。本研究的主要目的是检查南极酵母Debaromyces hansenii F39A 生物量对 Reactive Blue 19 和 Reactive Red 141 的生物吸附能力。研究了一些变量，包括 pH 值、染料浓度、吸附剂的量和接触时间。生物质的平衡吸附能力随着初始染料浓度的增加而增加，最高可达 350 毫克/升。实验等温线符合 Langmuir 模型，所选染料的最大吸收能力 ( q _max ) 在 0.0676–0.169  mmol/g 生物量范围内。在 100  mg/l的初始染料浓度、2  g/l 生物质负载和 20 ±  1  °C，D. hansenii F39A 在 pH 6.0 时吸附了约 90% 的活性红 141 和 50% 的活性蓝 19。当生物质负载增加 (6  g/l) 时，活性蓝 19 的吸收率高达 90%。染料吸收过程遵循每个染料系统的伪二级动力学。正如本研究中所见，汉森木虱具有在生物吸附过程中高效去除染料的潜力，并且可能是其他昂贵材料的替代品。