Reductive Biotransformation and Decolorization of Reactive Anthraquinone and Phthalocyanine Dyes

本研究的目的是深入评价蒽醌和酞菁活性染料的微生物还原转化和脱色潜力。几种商业染料以及模型化合物将被使用。将对目标染料进行表征，并对其氧化还原化学进行研究。目前缺乏的具体分析技术将用于鉴定和定量母体染料及其转化产物。将评估目标染料的非生物、化学和微生物还原转化和脱色的动力学和程度。在目标染料的还原性脱色过程中电子转移的机制方面和电子介质的潜在增强脱色过程的使用将被研究。为了在更现实的条件下进一步评估还原性生物脱色，脱色过程将在商业纺织品活性染料中通常遇到的生理盐水条件下使用连续流固定膜生物反应器进行评估。间歇式和连续流系统中的实验测量将用于开发数学模型，用于定量描述目标染料的还原性生物脱色，包括电子转移介质的潜在有益影响。* * *

0114169 Pavlostathis The objective of this research is the in-depth assessment of the microbial reductive transformation and decolorization potential of anthraquinone and phthalocyanine reactive dyes. Several commercial dyes as well as model compounds will be used. The target dyes will be characterized, and their redox chemistry investigated. Specific analytical techniques, which are currently lacking, will be developed for the identification and quantification of the parent dyes as well as their transformed products. The kinetics and extent of abiotic, chemical and microbial reductive transformation and decolorization of the target dyes will be assessed. Mechanistic aspects of electron transfer during the reductive decolorization of the target dyes and the use of electron mediators for the potential enhancement of the decolorization process will be investigated. To further evaluate reductive biodecolorization under more realistic conditions, the decolorization process will be evaluated using a continuous-flow, fixed-film bioreactor under saline conditions typically encountered in commercial textile reactive dyebaths. Experimental measurements in both batch and continuous-flow systems will be used to develop mathematical models for the quantitative description of the reductive biodecolorization of the target dyes, including the potential beneficial effect of electron transfer mediators. ***