SGER: Intimate Coupling of Photocatalysis and Biodegradation in a Novel Photocatalytic Circulating-Bed Biofilm Reactor

0402510 Rittmann 使用AOP将柠檬酸类化合物部分转化为可生物降解的产品，可以提供具有成本效益和稳健的整体处理方案。先前对集成系统的研究集中在顺序耦合系统，或在不同阶段进行生物和化学处理的系统。然而，由于AOP反应是快速和不加选择的，它们会产生大量的产物，包括那些过于氧化，本身有毒或不可生物降解的产物。因此，如果能采用单级或密切耦合的处理系统，就能改善综合性.如果细菌非常接近高级氧化，则可生物降解的产物可以在产生时从溶液中除去，使化学氧化剂仅集中在难降解的化合物上。在过去，紧密耦合似乎是不可能的，因为高级氧化中使用的反应物对细菌有严重的毒性。拟议的研究将研究一种新型的光生物系统，可以实现紧密耦合的理想，这是耦合化学生物处理新兴领域中真正独特且未经测试的概念。

0402510 Rittmann Using an AOP to partially transform recalcitrant compounds into biodegradable products allows for a cost-effective and robust overall treatment scheme. Prior research into integrated systems has focused on sequentially coupled systems, or those that have the biological and chemical treatments in separate stages. However, because AOP reactions are rapid and indiscriminate, they produce a large range of products, including those that are too oxidized, toxic themselves, or unavailable for biodegradation. Thus, integration could be improved if a single- stage -- or intimately coupled -- treatment system could be employed. If the bacteria were in close proximity to advanced oxidation, biodegradable products could be removed from solution as they are produced, focusing the chemical oxidant only on the recalcitrant compounds. In the past, intimate coupling has seemed impossible, because the reactants used in advanced oxidation are severely toxic to bacteria. The proposed research will investigate a novel photo-bio system that can achieve the ideal of intimate coupling, a truly unique and untested concept within the emerging field of coupled chemical-biological treatment.