Astrazon red azodye that is still widely used in Turkey is released into the aquatic environment. Since these dyes are degradable into the toxic aromatic amines, they have become a public health and environmental concern. In this study, the biosorption of the Astrazon red dye from aqueous solutions on dehydrated cells of Rhodopseudomonas sp. 51ATA was studied as a function of each pH, temperature and initial dye concentration. Rhodopseudomons sp. 51ATA strain belongs to the Rhodopseudomonas species which is an eco-friendly photosynthetic and facultative anaerobic bacterium. The best uptake of Astrazon red was observed at pH 2.0 and the data obtained were applied to both Freundlich and Langmuir adsorption isotherms. The adsorption data provided an excellent fit to both isotherms and showed good agreement to Scatchard analysis at various temperatures. Freundlich isotherm showed good fit to the data at low temperatures while Langmuir model was suitable for describing the adsorption at higher temperatures. Therefore, from these data, we could report that Rhodopseudomonas sp. 51ATA strain is very efficient bacterium for the removal of dyes from wastewater.

仍在土耳其广泛使用的阿斯特拉宗红色偶氮染料被释放到水生环境中。由于这些染料可降解为有毒的芳香胺，因此它们已成为公众健康和环境问题。在这项研究中，水溶液中的阿斯拉宗红染料对红假单胞菌脱水细胞的生物吸附。研究了51ATA与每个pH，温度和初始染料浓度的关系。Rhodopseudomons SP 。51ATA菌株属于红假单胞菌种是一种生态友好的光合兼性厌氧细菌。在pH 2.0时，Astrazon红的吸收最佳，并将所得数据应用于Freundlich和Langmuir吸附等温线。吸附数据提供了两个等温线的极佳拟合，并且在各种温度下均与Scatchard分析显示出很好的一致性。Freundlich等温线显示出与低温下的数据非常吻合，而Langmuir模型适合描述高温下的吸附。因此，从这些数据，我们可以报告Rhodopseudomonas sp.。51ATA菌株是从废水中去除染料的非常有效的细菌。